Door

• US 7,062,889 B2
• Filed: 03/25/2003
• Issued: 06/20/2006
• Est. Priority Date: 03/29/1999
• Status: Expired due to Term

• Current Assignee: Gemtron Corporation (SSW Holding Company Incorporated)
• Original Assignee: Gemtron Corporation (SSW Holding Company Incorporated)
• Inventors: Bienick, Craig, Herrmann, Bob, Daley, Howard
• Primary Examiner(s): SLACK, NAOKO N
• Application Number:
  US10/395,159
• Publication Number:
  US 20030182896A1
• Time in Patent Office: 1,183 Days
• Field of Search: 522/046.3, 522/046.8, 522/047, 522/047.2, 527/841.2, 527/841.3, 527/871, 527/921, 524/55, 524/56, 522/841.1, 527/841, 521/711, 522/00, 527/841.6, 495/01, 495/04, 493/83, 312/215, 312/222, 312/276, 296/216.01, 296/216.02, 296/215, 126/190, 126/198, 126/200
• US Class Current: 52/784.1
• CPC Class Codes: B29C 43/18 incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles B29C43/206 takes precedence
• CPC Class Codes: B29C 70/46 using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
• CPC Class Codes: B29C 70/74 Moulding material on a relatively small portion of the preformed part, e.g. outsert moulding B29C70/845 takes precedence
• CPC Class Codes: B29C 70/76 Moulding on edges or extremities of the preformed part
• CPC Class Codes: B29C 70/763 the edges being disposed in a substantial flat plane
• CPC Class Codes: B29L 2031/778 Windows profiled elements for making window frames B29L2031/005, windscreens B29L2031/3052
• CPC Class Codes: F24C 15/04 with transparent panels

Abstract

A peripherally encapsulated product, such as an oven door outer shell, is molded in accordance with this invention by placing a piece of glass between mold clamping portions of relatively movable closed bodies when the latter are in an open position. Preferably both bodies are heated and thermosetting polymeric material (SMC or BMC) is placed upon selected areas of one of the mold bodies within and about an area corresponding to an annular mold cavity and outboard of a peripheral edge of a piece of glass. The glass is clamped between mold clamping portions of the mold bodies which are then progressively closed creating compression forces which extrude the thermosetting polymeric material into the annular cavity and into complete encapsulation of the continuous peripheral edge of the piece of glass. The handle can be integrally molded during the molding process.

Claims

1. A molded door comprising a single unitary piece of hot molded integral thermosetting polymeric material forming a generally polygonal frame member defined by a front wall of a substantially polygonal configuration disposed substantially transverse to a peripheral wall substantially bordering said front wall, said thermosetting polymeric material being one of sheet molding compound (SMC) and bulk molding compound (BMC), a piece of tempered glass substantially closing an opening defined by an innermost heat and pressure extruded edge portion of said front wall, said glass piece having a peripheral edge, said glass piece peripheral edge being encapsulated by and in sandwiched relationship between opposite side portions of said front wall innermost heat and pressure extruded edge portion, and said front wall having an integrally molded handle located between said piece of glass and said peripheral wall.

2. The molded door as defined in claim 1 wherein said frame member includes a plurality of integrally molded bosses for receipt of fasteners.

3. The molded door as defined in claim 1 wherein said frame member includes a plurality of integrally molded reinforcing ribs.

4. The molded door as defined in claim 1 wherein said frame member includes a plurality of integrally molded bosses for receipt of fasteners, and said bosses are located adjacent corners of said frame member.

5. The molded door as defined in claim 1 wherein said front wall and said piece of tempered glass are in substantially coplanar relationship, said peripheral wall defines a small acute angle relative to a plane normal to said front wall, and said peripheral wall converges in a direction toward said front wall.

6. The molded door as defined in claim 5 wherein said frame member includes a plurality of integrally molded bosses for receipt of fasteners.

7. The molded door as defined in claim 5 wherein said frame member includes a plurality of integrally molded reinforcing ribs.

8. A door comprising a door frame, said door frame including a frame member defined by a polymeric/copolymeric synthetic plastic molded material front wall having an inner peripheral edge portion, a piece of tempered glass substantially closing an opening defined by said inner peripheral edge portion of said front wall, said glass piece having a peripheral edge, said glass piece peripheral edge and said inner peripheral edge portion being in substantially bordering relationship to each other, a handle formed in situ in said front wall outboard of said inner peripheral edge portion during the molding of said frame member, said handle including a finger-receiving opening opening through a handle forming wall portion of said front wall, and said finger-receiving opening being defined by an in situ molded edge of said in situ molded front wall handle forming wall portion.

9. The door as defined in claim 8 wherein said front wall handle forming wall portion is offset from a plane of said front wall.

10. The door as defined in claim 8 wherein said front wall handle forming wall portion is front-side offset from a plane of said front wall.

11. The door as defined in claim 8 wherein a plane through said in situ molded edge corresponds to a parting line plane through opposing mold bodies between which said door is molded.

12. The door as defined in claim 8 wherein a plane through said in situ molded edge defines an included obtuse angle with a plane through said front wall.

13. The door as defined in claim 12 including means for reinforcing a rear side of said front wall.

14. The door as defined in claim 12 including means at a rear side of said front wall for the receipt of fasteners.

15. The door as defined in claim 14 including means at a rear side of said front wall for the receipt of fasteners.

16. The door as defined in claim 15 wherein said front wall merges with a peripheral flange.

17. The door as defined in claim 12 wherein said front wall merges with a peripheral flange.

18. The door as defined in claim 8 wherein a plane through said in situ molded edge defines an included obtuse angle with a plane through said piece of tempered glass.

19. The door as defined in claim 8 wherein a plane through said in situ molded edge defines an included obtuse angle with a plane through each of said front wall and said piece of tempered glass.

20. The door as defined in claim 8 including means for reinforcing a rear side of said front wall.

21. The door as defined in claim 8 including means at a rear side of said front wall for the receipt of fasteners.

22. The door as defined in claim 8 wherein said front wall merges with a peripheral flange.

23. The door as defined in claim 8 wherein said front wall merges with a peripheral flange, and means for defining at least one vent opening in said peripheral flange.

24. The door as defined in claim 8 wherein said in situ molded edge is continuous.

25. The door as defined in claim 24 wherein said in situ molded edge includes a first edge portion lying substantially in a plane of said front wall and a second edge portion lying in a plane.

26. The door as defined in claim 24 wherein said in situ molded edge includes a first edge portion lying substantially in a plane of said front wall and a second edge portion lying in a plane defining a substantially obtuse angle with said front wall plane.

27. The door as defined in claim 8 wherein said in situ molded edge includes a first edge portion lying substantially in a plane of said front wall and a second edge portion lying in a plane defining an angle with said front wall plane.

28. The door as defined in claim 8 wherein said in situ molded edge includes a first edge portion lying substantially in a plane of said front wall and a second edge portion lying in a plane defining a substantially obtuse angle with said front wall plane.