Threshold system

• US 5,469,665 A
• Filed: 10/21/1993
• Issued: 11/28/1995
• Est. Priority Date: 10/21/1993
• Status: Expired due to Term

• Current Assignee: Oldcastle Glass Engineered Products, Inc. (CRH PLC)
• Original Assignee: Butler Manufacturing Company (Bluescope Steel Limited)
• Inventors: Biebuyck, Lawrence
• Primary Examiner(s): KANNAN, PHILIP
• Application Number:
  US08/140,213
• Time in Patent Office: 768 Days
• Field of Search: 49/470, 49/469, 49/467, 49/468, 49/471
• US Class Current: 49/470
• CPC Class Codes: E06B 7/2316 used as a seal between the floor and the wing

Abstract

A threshold system for a door incorporating a seal and a threshold plate. The seal mounts to the door and has a flap extending therebeneath. The threshold plate has a raised inner section connected to a recessed outer section by an upstanding lip. The threshold plate disposed below the door so that the flap of the seal contacts with the upstanding lip of the threshold plate, thereby creating a seal between an outside area and an inside area. An outer deflector is mounted on the door body to deflect air and moisture away from the threshold plate and seal.

Claims

1. An improved threshold system for sealing an inside area of a building from an outside area thereof, of the type wherein a threshold plate is disposed beneath a door, wherein the improvement comprises:

a seal flap depending from a lower area of said door, said seal flap having a first surface facing said inside area, a second surface facing said outside area and a bottom;

a deflector shield disposed on a lower area of said door facing said outside area, said deflector shield being located for deflecting moisture and air away from said threshold system;

said threshold plate having a raised inner section connected by an upstanding lid to a recessed outer section, said upstanding lip being located for engaging said first surface of said seal flap, thereby sealing said outside area from said inside area; and

wherein said seal flap and said upstanding lip are located for an engagement which allows sufficient space between the bottom of said seal flap and a top surface of said recessed outer section, and sufficient overlap between said seal flap and said upstanding lip, so that the squareness of said door can be adjusted without loss of sealing contact between said seal flap and said upstanding lip.

2. The improved threshold system as in claim 1, wherein said bottom of said seal flap contacts said upstanding lip above said recessed outer section with sufficient height so that the seal flap does not contact any moisture clinging to a top surface of said recessed outer section as said door is opened or closed.

3. The improved threshold system as in claim 1, wherein a top surface of said recessed outer section of said threshold plate is angled downward as said recessed outer section progresses away from said inside area and towards said outside area.

4. The improved threshold system as in claim 1, wherein said recessed outer section of said threshold plate does not extend beyond said deflector shield into said outside area.

5. The improved threshold system as in claim 1, wherein said seal flap has a select upper body profile, and wherein said door includes a seal channel adapted for engaging and securing said upper body profile of said seal flap thereto.

6. The improved threshold system as in claim 5, wherein said seal channel is removably mounted to said door.

7. The improved threshold system as in claim 1, wherein an upper section of said seal flap is secured to said door, and including:

a means for transferring only horizontal forces between said seal flap and said door; and

wherein said means for transferring only horizontal forces is located below the location where said upper section of said seal flap is secured to said door.

8. An improved threshold system for sealing an inside area of a building from an outside area thereof, of the type wherein a threshold plate is disposed beneath a door, wherein the improvement comprises:

a seal flap depending from a lower area of said door, said seal flap having a first surface facing said inside area, a second surface facing said outside area, and a bottom;

said threshold plate having a raised inner section connected by an upstanding lid to a recessed outer section, said upstanding lid being located for engaging said first surface of said seal flap, thereby sealing said outside area from said inside area;

wherein said seal flap contacts said upstanding lip above said recessed outer section with sufficient height so that the seal flap does not contact any moisture clinging to a top surface of said recessed outer section as said door is opened and closed;

wherein the top surface of said recessed outer section of said threshold plate is angled downward as said recessed outer section progresses away from said inside area and towards said outside area; and

wherein said seal flap and said upstanding lip are located for an engagement which allows sufficient space between the bottom of said seal flap and the top surface of said recessed outer section, and sufficient overlap between said seal flap and said upstanding lip, so that the squareness of said door can be adjusted without loss of sealing contact between said seal flap and said upstanding lip.

9. The improved threshold system as in claim 8, wherein said seal flap has a select upper body profile, and wherein said door includes a seal channel adapted for engaging and securing said upper body profile of said seal flap thereto.

10. The improved threshold system as in claim 9, wherein said seal channel is removably mounted to said door.

11. The improved threshold system as in claim 8, wherein an upper section of said seal flap is secured to said door, and including:

a means for transferring only horizontal forces between said seal flap and said door; and

wherein said means for transferring only horizontal forces is located below the location where said upper section of said seal flap is secured to said door.

12. The improved threshold system as in claim 8, wherein said recessed outer section of said threshold plate does not extend beyond said door into said outside area.

13. The improved threshold system as in claim 8, including a deflector shield disposed on a lower area of said door facing said outside area, wherein said deflector shield is located for deflecting moisture and air away from said threshold system.

14. The improved threshold system as in claim 13, wherein said recessed outer section of said threshold plate does not extend beyond said deflector shield into said outside area.

15. An improved threshold system for sealing an inside area of a building from an outside area thereof, of the type wherein a threshold plate is disposed beneath a door, wherein the improvement comprises:

a seal flap depending from a lower area of said door, said seal flap having a first surface facing said inside area, a second surface facing said outside area, and a bottom;

said threshold plate having a raised inner section connected by an upstanding lip to a recessed outer section, said upstanding lid being located for engaging said first surface of said seal flap, thereby sealing said outside area from said inside area;

wherein said seal flap contacts said upstanding lip above said recessed outer section with sufficient height so that the seal flap does not contact any moisture clinging to a top surface of said recessed outer section as said door is opened and closed; and

wherein said seal flap and said upstanding lip are located for an engagement which allows sufficient space between the bottom of said seal flap and the top surface of said recessed outer section, and sufficient overlap between said seal flap and said raised upper section, so that the squareness of said door can be adjusted without loss of sealing contact between said seal flap and said upstanding lip.

16. The improved threshold system as in claim 15, wherein the top surface of said recessed outer section of said threshold plate is angled downward as said recessed outer section progresses away from said inside area and towards said outside area.

17. The improved threshold system as in claim 15, wherein said recessed outer section of said threshold plate does not extend beyond said door into said outside area.

18. The improved threshold system as in claim 15, including a deflector shield disposed on a lower area of said door facing said outside area, wherein said deflector shield is located for deflecting moisture and air away from said threshold system.

19. The improved threshold system as in claim 18, wherein said recessed outer section of said threshold plate does not extend beyond said deflector shield into said outside area.

20. The improved threshold system as in claim 15, wherein said seal flap has a select upper body profile, and wherein said door includes a seal channel adapted for engaging and securing said upper body profile of said seal flap thereto.

21. The improved threshold system as in claim 20, wherein said seal channel is removably mounted to said door.

22. The improved threshold system as in claim 15, wherein an upper section of said seal flap is secured to said door, and including:

a means for transferring only horizontal forces between said seal flap and said door; and

wherein said means for transferring only horizontal forces is located below the location where said upper section of said seal flap is secured to said door.

23. An improved threshold system for sealing an inside area of a building from an outside area thereof, of the type wherein a threshold plate is disposed beneath a door, wherein the improvement comprises:

a seal flap depending from a lower area of said door, said seal flap having a first surface facing said inside area, a second surface facing said outside area, and a bottom;

said threshold plate having a raised inner section connected by an upstanding lip to a recessed outer section, said upstanding lid being located for engaging said first surface of said seal flap, thereby sealing said outside area from said inside area;

wherein said seal flap contacts said upstanding lip above said recessed outer section with sufficient height so that the bottom of said seal flap does not contact a top surface of said recessed outer section as said door is opened and closed, thereby preventing wear of said seal flap caused by the rubbing of said seal flap against said top surface of said recessed outer section as said door is opened and closed; and

wherein said seal flap and said upstanding lip are located for an engagement which allows sufficient space between the bottom of said seal flap and the top surface of said recessed outer section, and sufficient overlap between said seal flap and said raised upper section, so that the squareness of said door can be adjusted without loss of sealing contact between said seal flap and said upstanding lip.

24. The improved threshold system as in claim 23, wherein the top surface of said recessed outer section of said threshold plate is angled downward as said recessed outer section progresses away from said inside area and towards said outside area.

25. The improved threshold system as in claim 23, wherein said recessed outer section of said threshold plate does not extend beyond said door into said outside area.

26. The improved threshold system as in claim 23, including a deflector shield disposed on a lower area of said door facing said outside area, wherein said deflector shield is located for deflecting moisture and air away from said threshold system.

27. The improved threshold system as in claim 26, wherein said recessed outer section of said threshold plate does not extend beyond said deflector shield into said outside area.

28. The improved threshold system as in claim 23, wherein said seal flap has a select upper body profile, and wherein said door includes a seal channel adapted for engaging and securing said upper body profile of said seal flap thereto.

29. The improved threshold system as in claim 28, wherein said seal channel is removably mounted to said door.

30. The improved threshold system as in claim 23, wherein an upper section of said seal flap is secured to said door, and including:

a means for transferring only horizontal forces between said seal flap and said door; and

wherein said means for transferring only horizontal forces is located below the location where said upper section of said seal flap is secured to said door.

31. An improved threshold system for sealing an inside area of a building from an outside area thereof, of the type wherein a threshold plate is disposed beneath a door, wherein the improvement comprises:

a seal flap depending from a lower area of said door, said seal flap having a first surface facing said inside area, a second surface facing said outside area, and a bottom;

a deflector shield disposed on a lower area of said door facing said outside area, said deflector shield being located for deflecting moisture and air away from said threshold system;

said threshold plate having a raised inner section connected by an upstanding lip to a recessed outer section, said upstanding lid being located for engaging said first surface of said seal flap, thereby sealing said outside area from said inside area; and

said seal flap being mounted from a lower area of said door that is a surface facing said inside area of said building.

32. The improved threshold system as in claim 31, wherein said bottom of said seal flap contacts said upstanding lip above said recessed outer section with sufficient height so that the seal flap does not contact any moisture clinging to a top surface of said recessed outer section as said door is opened or closed.

33. The improved threshold system as in claim 31, wherein a top surface of said recessed outer section of said threshold plate is angled downward as said recessed outer section progresses away from said inside area and towards said outside area.

34. The improved threshold system as in claim 31, wherein said recessed outer section of said threshold plate does not extend beyond said deflector shield into said outside area.

35. The improved threshold system as in claim 31, wherein said seal flap and said upstanding lip are located for an engagement which allows sufficient space between the bottom of said seal flap and a top surface of said recessed outer section, and sufficient overlap between said seal flap and said upstanding lip, so that the squareness of said door can be adjusted without loss of sealing contact between said seal flap and said upstanding lip.

36. The improved threshold system as in claim 31, wherein said seal flap has a select upper body profile, and wherein said door includes a seal channel adapted for engaging and securing said upper body profile of said seal flap thereto.

37. The improved threshold system as in claim 36, wherein said seal channel is removably mounted to said door.

38. The improved threshold system as in claim 31, wherein an upper section of said seal flap is secured to said door, and including:

a means for transferring only horizontal forces between said seal flap and said door; and

wherein said means for transferring only horizontal forces is located below the location where said upper section of said seal flap is secured to said door.

39. An improved threshold system for sealing an inside area of a building from an outside area thereof, of the type wherein a threshold plate is disposed beneath a door, wherein the improvement comprises:

a seal flap depending from a lower area of said door, said seal flap having a first surface facing said inside area, a second surface facing said outside area, and a bottom;

said threshold plate having a raised inner section connected by an upstanding lip to a recessed outer section, said upstanding lid being located for engaging said first surface of said seal flap, thereby sealing said outside area from said inside area;

wherein said seal flap contacts said upstanding lip above said recessed outer section with sufficient height so that the seal flap does not contact any moisture clinging to a top surface of said recessed outer section as said door is opened and closed; and

said seal flap being mounted from a lower area of said door that is a surface facing said inside area of said building.

40. The improved threshold system as in claim 39, wherein said recessed outer section of said threshold plate does not extend beyond said door into said outside area.

41. The improved threshold system as in claim 39, including a deflector shield disposed on a lower area of said door facing said outside area, wherein said deflector shield is located for deflecting moisture and air away from said threshold system.

42. The improved threshold system as in claim 41, wherein said recessed outer section of said threshold plate does not extend beyond said deflector shield into said outside area.

43. The improved threshold system as in claim 39, wherein said seal flap and said upstanding lip are located for an engagement which allows sufficient space between the bottom of said seal flap and the top surface of said recessed outer section, and sufficient overlap between said seal flap and said raised upper section, so that the squareness of said door can be adjusted without loss of sealing contact between said seal flap and said upstanding lip.

44. The improved threshold system as in claim 39, wherein said seal flap has a select upper body profile, and wherein said door includes a seal channel adapted for engaging and securing said upper body profile of said seal flap thereto.

45. The improved threshold system as in claim 44, wherein said seal channel is removably mounted to said door.

46. The improved threshold system as in claim 39, wherein an upper section of said seal flap is secured to said door, and including:

a means for transferring only horizontal forces between said seal flap and said door; and

wherein said means for transferring only horizontal forces is located below the location where said upper section of said seal flap is secured to said door.

47. An improved threshold system for sealing an inside area of a building from an outside area thereof, of the type wherein a threshold plate is disposed beneath a door, wherein the improvement comprises:

a seal flap depending from a lower area of said door, said seal flap having a first surface facing said inside area, a second surface facing said outside area, and a bottom;

said threshold plate having a raised inner section connected by an upstanding lip to a recessed outer section, said upstanding lip being located for engaging said first surface of said seal flap, thereby sealing said outside area from said inside area;

wherein said seal flap contacts said upstanding lip above said recessed outer section with sufficient height so that the seal flap does not contact any moisture clinging to a top surface of said recessed outer section as said door is opened and closed;

wherein the top surface of said recessed outer section of said threshold plate is angled downward as said recessed outer section progresses away from said inside area and towards said outside area; and

said seal flap being mounted from a lower area of said door that is a surface facing said inside area of said building.

48. The improved threshold system as in claim 47, wherein said recessed outer section of said threshold plate does not extend beyond said door into said outside area.

49. The improved threshold system as in claim 47, including a deflector shield disposed on a lower area of said door facing said outside area, wherein said deflector shield is located for deflecting moisture and air away from said threshold system.

50. The improved threshold system as in claim 49, wherein said recessed outer section of said threshold plate does not extend beyond said deflector shield into said outside area.

51. The improved threshold system as in claim 47, wherein said seal flap and said upstanding lip are located for an engagement which allows sufficient space between the bottom of said seal flap and the top surface of said recessed outer section, and sufficient overlap between said seal flap and said upstanding lip, so that the squareness of said door can be adjusted without loss of sealing contact between said seal flap and said upstanding lip.

52. The improved threshold system as in claim 47, wherein said seal flap has a select upper body profile, and wherein said door includes a seal channel adapted for engaging and securing said upper body profile of said seal flap thereto.

53. The improved threshold system as in claim 52, wherein said seal channel is removably mounted to said door.

54. The improved threshold system as in claim 47, wherein an upper section of said seal flap is secured to said door, and including:

a means for transferring only horizontal forces between said seal flap and said door; and

wherein said means for transferring only horizontal forces is located below the location where said upper section of said seal flap is secured to said door.

55. An improved threshold system for sealing an inside area of a building from an outside area thereof, of the type wherein a threshold plate is disposed beneath a door, wherein the improvement comprises:

a seal flap depending from a lower area of said door, said seal flap having a first surface facing said inside area, a second surface facing said outside area, and a bottom;

said threshold plate having a raised inner section connected by an upstanding lip to a recessed outer section, said upstanding lid being located for engaging said first surface of said seal flap, thereby sealing said outside area from said inside area;

wherein said seal flap contacts said upstanding lip above said recessed outer section with sufficient height so that the bottom of said seal flap does not contact a top surface of said recessed outer section as said door is opened and closed, thereby preventing wear of said seal flap caused by the rubbing of said seal flap against said top surface of said recessed outer section as said door is opened and closed; and

said seal flap being mounted from a lower area of said door that is a surface facing said inside area of said building.

56. The improved threshold system as in claim 55, wherein the top surface of said recessed outer section of said threshold plate is angled downward as said recessed outer section progresses away from said inside area and towards said outside area.

57. The improved threshold system as in claim 55, wherein said recessed outer section of said threshold plate does not extend beyond said door into said outside area.

58. The improved threshold system as in claim 55, including a deflector shield disposed on a lower area of said door facing said outside area, wherein said deflector shield is located for deflecting moisture and air away from said threshold system.

59. The improved threshold system as in claim 58, wherein said recessed outer section of said threshold plate does not extend beyond said deflector shield into said outside area.

60. The improved threshold system as in claim 55, wherein said seal flap and said upstanding lip are located for an engagement which allows sufficient space between the bottom of said seal flap and the top surface of said recessed outer section, and sufficient overlap between said seal flap and said raised upper section, so that the squareness of said door can be adjusted without loss of sealing contact between said seal flap and said upstanding lip.

61. The improved threshold system as in claim 55, wherein said seal flap has a select upper body profile, and wherein said door includes a seal channel adapted for engaging and securing said upper body profile of said seal flap thereto.

62. The improved threshold system as in claim 61, wherein said seal channel is removably mounted to said door.

63. The improved threshold system as in claim 55, wherein an upper section of said seal flap is secured to said door, and including:

a means for transferring only horizontal forces between said seal flap and said door; and

wherein said means for transferring only horizontal forces is located below the location where said upper section of said seal flap is secured to said door.

64. An improved threshold assembly adapted for sealing an inside area of a building from an outside area thereof, of the type wherein a threshold plate is disposed beneath a door, wherein the improvement comprises:

a seal flap depending from a lower area of said door;

a deflector shield disposed on a lower area of said door facing said outside area, whereby said deflector shield is adapted for deflecting moisture and air away from said threshold system;

said threshold plate having a raised inner section disposed towards said inside area and connected by an upstanding lip to a recessed outer section disposed towards said outside area;

said upstanding lip being adapted for engaging an area of said seal flap facing said inside area, thereby sealing said outside area from said inside area; and

wherein said seal flap and said upstanding lip are adapted for an engagement which allows sufficient space between the bottom of said seal flap and a top surface of said recessed outer section, and sufficient overlap between said seal flap and said upstanding lip, so that the squareness of said door can be adjusted without loss of sealing contact between said seal flap and said upstanding lip.

65. An improved threshold assembly adapted for sealing an inside area of a building from an outside area thereof, of the type wherein a threshold plate is disposed beneath a door, wherein the improvement comprises:

a seal flap depending from a lower area of said door;

said threshold plate having a raised inner section disposed towards said inside area and connected by an upstanding lip to a recessed outer section disposed towards said outside area;

said upstanding lip being adapted for engaging an area of said seal flap facing said inside area, thereby sealing said outside area from said inside area;

wherein said seal flap contacts said upstanding lip above said recessed outer section with sufficient height so that the seal flap does not contact any moisture clinging to a top surface of said recessed outer section as said door is opened and closed;

wherein the top surface of said recessed outer section of said threshold plate is angled downward as said recessed outer section progresses away from said inside area and towards said outside area; and

wherein said seal flap and said upstanding lip are adapted for an engagement which allows sufficient space between the bottom of said seal flap and the top surface of said recessed outer section, and sufficient overlap between said seal flap and said upstanding lip, so that the squareness of said door can be adjusted without loss of sealing contact between said seal flap and said upstanding lip.

66. An improved threshold assembly adapted for sealing an inside area of a building from an outside area thereof, of the type wherein a threshold plate is disposed beneath a door, wherein the improvement comprises:

a seal flap depending from a lower area of said door;

said threshold plate having a raised inner section disposed towards said inside area and connected by an upstanding lip to a recessed outer section disposed towards said outside area;

said upstanding lip being adapted for engaging an area of said seal flap facing said inside area, thereby sealing said outside area from said inside area;

wherein said seal flap contacts said upstanding lip above said recessed outer section with sufficient height so that the seal flap does not contact any moisture clinging to a top surface of said recessed outer section as said door is opened and closed; and

wherein said seal flap and said upstanding lip are adapted for an engagement which allows sufficient space between the bottom of said seal flap and the top surface of said recessed outer section, and sufficient overlap between said seal flap and said raised upper section, so that the squareness of said door can be adjusted without loss of sealing contact between said seal flap and said upstanding lip

67. An improved threshold assembly adapted for sealing an inside area of a building from an outside area thereof, of the type wherein a threshold plate is disposed beneath a door, wherein the improvement comprises:

a seal flap depending from a lower area of said door;

said threshold plate having a raised inner section disposed towards said inside area and connected by an upstanding lip to a recessed outer section disposed towards said outside area;

said upstanding lip being adapted for engaging an area of said seal flap facing said inside area, thereby sealing said outside area from said inside area;

wherein said seal flap contacts said upstanding lip above said recessed outer section with sufficient height so that the seal flap does not contact a top surface of said recessed outer section as said door is opened and closed, thereby preventing wear of said seal flap caused the rubbing of said seal flap against said top surface of said recessed outer section as said door is opened and closed; and

wherein said seal flap and said upstanding lip are adapted for an engagement which allows sufficient space between the bottom of said seal flap and the top surface of said recessed outer section, and sufficient overlap between said seal flap and said raised upper section, so that the squareness of said door can be adjusted without loss of sealing contact between said seal flap and said upstanding lip.