Hook shaped pipe hanger

• US 5,385,320 A
• Filed: 09/16/1993
• Issued: 01/31/1995
• Est. Priority Date: 09/16/1993
• Status: Expired due to Term

• Current Assignee: Chieftain Corporation
• Original Assignee: Chieftain Corporation
• Inventors: Julian, Frank J., Ismert, Joseph P.
• Primary Examiner(s): CHOTKOWSKI, KAREN
• Application Number:
  US08/122,781
• Time in Patent Office: 502 Days
• Field of Search: 248/58, 248/49, 248/60, 248/62, 248/63, 248/68.1, 248/74.2, 248/74.3, 248/316.7, 248/339, 248/304, 248/305, 248/306, 24/599.4, 24/600.7, 24/601.2, 24/601.6, 24/601.7
• US Class Current: 248/62
• CPC Class Codes: F16L 3/10 divided, i.e. with two or more members engaging the pipe, cable or protective tubing
• CPC Class Codes: F16L 3/237 for two pipes

Abstract

A pipe hanger is formed of an elongate stem joined to a flexible, curved, substantially semicircular lower hook portion. The stem has holes therethrough for nailing to a support beam and suspending a run of plumbing piping from the support beam. The hook portion is of commensurate size to the pipe and cradles the pipe in a suspended position. In a preferred embodiment, a tooth extending angularly, outwardly and downwardly from the portion of the stem adjacent to the hook portion cooperates with the hook tip so that there is a snap fit between the tooth end and the hook tip as the pipe is urged therebetween and into a retained, cradling relation in the hook portion. Several alternative embodiments are disclosed which utilize a tooth movable into position over the pipe to hold the pipe in a retained, cradling relation in the hook portion.

Claims

1. A pipe hanger comprising:

a) an elongate stem joined to a lower hook portion of a cradle shape, said stem having holes therethrough for nailing to a support and having an upper end and with a lower end joining said hook portion at a hook juncture;

b) said hook portion being sized to substantially cradle a pipe of selected radius to be retained by said hook portion, thereby providing said hook portion with a diameter;

c) said hook portion terminating in a hook tip; and

d) a tooth extending outwardly from said stem adjacent said stem lower end and tapering to a narrow tooth end terminating in a position above an area encompassed by said hook portion, said tooth being separate from said hook portion and with an open gap between said tooth tip and said hook juncture, said tooth end and a portion of said hook tip contacting said pipe being spaced a distance less than the diameter of said pipe so that there is a snap fit between said tooth end and said hook tip portion as said pipe is urged therebetween and into a retained, cradling relation in said hook portion.

2. The pipe hanger set forth in claim 1 wherein said tooth has a flat extension portion and a downwardly angled tip section joined to said first section

3. The pipe hanger set forth in claim 2 wherein said tooth has hinge portions respectively located between said flat extension portion and said stem and between said flat extension portion and said tip section.

4. A pipe hanger comprising:

a) an elongate stem joined to a lower hook portion of a cradle shape, said stem having holes therethrough for nailing to a support and having an upper end and with a lower end joining said hook portion;

b) said hook portion being sized to substantially cradle a pipe of selected radius to be retained by said hook portion, thereby providing said hook portion with a diameter;

c) said hook portion terminating in a hook tip; and

d) a tooth extending outwardly from said stem adjacent said stem lower end and having a tooth end terminating in a position above an area encompassed by said hook portion, said tooth end and a portion of said hook tip contacting said pipe being spaced a distance less than the diameter of said pipe so that there is a snap fit between said tooth end and said hook tip portion as said pipe is urged therebetween and into a retained, cradling relation in said hook portion, wherein said tooth extends from a sleeve slidable longitudinally on said stem, said tooth having a first section extending angularly downwardly from said slide and a tip section extending further downwardly.

5. The pipe hanger set forth in claim 4 wherein said tooth tip section is positioned in an acute included angle relative to said first section.

6. The pipe hanger set forth in claim 4 wherein said tooth is formed of a flexible, spring-like material.

7. The pipe hanger set forth in claim 4 wherein said sleeve is dimensioned to be self-binding on said stem.

8. A pipe hanger comprising:

a) an elongate stem joined to a flexible, curved, substantially semicircular lower hook portion, said stem having holes therethrough for nailing to a support and having an upper end and with a lower end joining said lower hook portion at a hook juncture;

b) said hook portion having an inner surface with a radius of curvature of approximately the same as that of a pipe of selected radius to be retained by said hook portion;

c) said hook portion terminating in a hook tip with an inner area meeting said inner surface;

d) said inner surface having a radius of curvature defining an arc from said hook juncture to said hook tip inner area of less than 180°

;

e) said hook tip inner area being spaced from said stem lower end a distance substantially the same as the diameter of the hook portion so that a pipe of substantially the same diameter is cradled in said hook portion; and

f) a tooth extending outwardly and downwardly from said stem adjacent said stem lower end and tapering to a narrow tooth end terminating in a position above an area encircled by said hook portion, said tooth being separate from said hook portion and with an open gap between said tooth end and said hook juncture, said tooth end and said hook tip inner area being spaced a distance less than the diameter of said pipe so that there is a snap fit between said tooth end and said hook tip inner area as said pipe is urged therebetween and into a retained, cradling relation in said hook portion.

9. The pipe hanger set forth in claim 8 wherein a centerline extended through said tooth and running through a center point of said lower hook portion is at an approximately 35°

included angle to said stem.

10. The pipe hanger set forth in claim 8 wherein said tooth has an upper flat shoulder joining said stem at a right angle for abutting a squared bottom support beam.

11. The pipe hanger set forth in claim 8 including apertures through said stem adjacent said tooth and through said hook portion adjacent said hook tip for extending a tie strap through said apertures and securing a pipe retained in said hook portion.

12. The pipe hanger set forth in claim 8 including a pair of the elements set forth in subparagraphs (b) through (f) with said hook portions extending in opposite directions for supporting a pair of pipes.

13. The pipe hanger set forth in claim 8 including a nail retainer slot for affixing a nail to said stem in ready position for use.

14. The pipe hanger set forth in claim 8 wherein said hook tip is slanted upwardly and away from said hook tip inner area to facilitate sliding a pipe into said hook portion.

15. A pipe hanger comprising:

a) an elongate stem joined to a flexible, curved, substantially semicircular lower hook portion, said stem having a plurality of holes therethrough for nailing to a support and having an upper end and with a lower end joining said lower hook portion;

b) said hook portion having an inner surface with a radius of curvature of approximately the same as that of a pipe of selected radius to be retained by said hook hanger;

c) said hook portion terminating in a hook tip with an inner area meeting said inner surface, said hook tip being slanted upwardly and away from said hook tip inner area to facilitate sliding a pipe into said hook portion;

d) said inner surface having a radius of curvature defining an arc from said stem lower end to said hook tip inner area of 180°

or less;

e) said hook tip inner area being spaced from said stem lower end a distance substantially the same as the diameter of the hook portion so that a pipe of substantially the same diameter is cradled in said hook portion; and

f) a tooth extending outwardly and downwardly from said stem adjacent said stem lower end and having a tooth end terminating in a position above an area encircled by said hook portion, said tooth and said hook tip inner area being spaced a distance less than the diameter of said pipe so that there then is a snap fit between said tooth tip and said hook tip inner area as said pipe is urged therebetween and into a retained, cradling relation in said hook portion, said tooth being positioned relative to said stem so that a centerline extended through said tooth and running through a center point of said lower hook portion is at an approximately 35°

included angle to said stem.

16. A pipe hanger comprising:

a) an elongate stem joined to a lower hook portion of a cradle shape, said stem having holes therethrough for nailing to a support and having an upper end and with a lower end joining said hook portion;

b) said hook portion being sized to substantially cradle a pipe of selected radius to be retained by said hook portion, thereby providing said hook portion with a diameter;

c) said hook portion terminating in a hook tip; and

d) a tooth extending outwardly from said stem adjacent said stem lower end and formed of a first section hingedly connected by a first hinge to said stem and a tip section hingedly connected by a second hinge to said first section, said first hinge between said stem and said first section being more resistant to flexure than said second hinge between said first section and said tip section, said tip section having a tooth end terminating in a position above an area encompassed by said hook portion, said tooth end and a portion of said hook tip contacting said pipe being spaced a distance less than the diameter of said pipe so that there is a snap fit between said tooth and said hook tip portion as said pipe is urged therebetween and into a retained, cradling relation in said hook portion.

17. A pipe hanger comprising:

a) An elongate stem joined to a lower hook portion of a cradle shape, said stem having holes therethrough for nailing to a support and having an upper end and with a lower end joining said hook portion;

b) said hook portion being sized to substantially cradle a pipe of selected radius to be retained by said hook portion, thereby providing said hook portion with a diameter;

c) said hook portion terminating in a hook tip; and

d) a tooth extending outwardly from said stem and mounted on a slidable sleeve movable in position adjacent said stem lower end, said tooth formed of a first portion extending angularly outwardly from said sleeve and a tip section extending angularly outward from said first section, said tip section having a tooth end terminating in a position above an area encompassed by said hook portion, said tooth end being slidable downwardly atop said pipe to maintain said pipe in a retained, cradling relation in said hook portion.

18. A pipe hanger comprising:

a) an elongate stem joined to a flexible, curved, substantially semicircular lower hook portion, said stem having holes therethrough for nailing to a support and having an upper end and with a lower end joining said lower hook portion;

b) said hook portion having an inner surface with a radius of curvature of approximately the same as that of a pipe of selected radius to be retained by said hook portion;

c) said hook portion terminating in a hook tip with an inner area meeting said inner surface;

d) said inner surface having a radius of curvature defining an arc from said stem lower end to said hook tip inner area of less than 180°

;

e) said hook tip inner area being spaced from said stem lower end a distance substantially the same as the diameter of the hook portion so that a pipe of substantially the same diameter is cradled in said hook portion;

f) a tooth extending outwardly and downwardly from said stem adjacent said stem lower end and having a tooth end terminating in a position above an area encircled by said hook portion, said tooth end and said hook tip inner area being spaced a distance less than the diameter of said pipe so that there is a snap fit between said tooth end and said hook tip inner area as said pipe is urged therebetween and into a retained, cradling relation in said hook portion; and

g) wherein a centerline extended through said tooth and running through a center point of said lower hook portion is at an approximately 35°

included angle to said stem.

19. A pipe hanger comprising:

a) an elongate stem joined to a flexible, curved, substantially semicircular lower hook portion, said stem having holes therethrough for nailing to a support and having an upper end and with a lower end joining said lower hook portion;

b) said hook portion having an inner surface with a radius of curvature of approximately the same as that of a pipe of selected radius to be retained by said hook portion;

c) said hook portion terminating in a hook tip with an inner area meeting said inner surface;

d) said inner surface having a radius of curvature defining an arc from said stem lower end to said hook tip inner area of less than 180°

;

e) said hook tip inner area being spaced from said stem lower end a distance substantially the same as the diameter of the hook portion so that a pipe of substantially the same diameter is cradled in said hook portion;

f) a tooth extending outwardly and downwardly from said stem adjacent said stem lower end and having a tooth end terminating in a position above an area encircled by said hook portion, said tooth end and said hook tip inner area being spaced a distance less than the diameter of said pipe so that there is a snap fit between said tooth end and said hook tip inner area as said pipe is urged therebetween and into a retained, cradling relation in said hook portion; and

g) wherein said tooth has an upper flat shoulder joining said stem at a right angle for abutting a squared bottom support beam.

20. A pipe hanger comprising:

a) an elongate stem joined to a lower hook portion of a cradle shape, said stem having holes therethrough for nailing to a support and having an upper end and with a lower end joining said hook portion;

b) said hook portion being sized to substantially cradle a pipe of selected radius to be retained by said hook portion, thereby providing said hook portion with a diameter;

c) said hook portion terminating in a hook tip; and

d) a tooth extending outwardly from said stem adjacent said stem lower end and having a tooth end terminating in a position above an area encompassed by said hook portion, said tooth end and a portion of said hook tip contacting said pipe being spaced a distance less than the diameter of said pipe so that there is a snap fit between said tooth end and said hook tip portion as said pipe is urged therebetween and into a retained, cradling relation in said hook portion, wherein said tooth has a first section extending angularly downwardly and a tip section joined to said first section and extending further downwardly at an angle steeper than said first section, and wherein said tooth has hinge portions respectively located between said first section and said stem and between said first section and said tip section.

21. A pipe hanger comprising:

a) an elongate stem joined to a flexible, curved, substantially semicircular lower hook portion to form a J-shaped body, said stem having holes therethrough for nailing to a support and having an upper end and with a lower end joining said lower hook portion at a hook juncture;

b) said hook portion having an inner surface with a radius of curvature of approximately the same as that of a pipe of selected radius to be retained by said hook portion;

c) said hook portion terminating in a hook tip with an inner area meeting said inner surface;

d) said inner surface having a radius of curvature defining an arc from said hook juncture to said hook tip inner area of less than 180°

;

e) said hook tip inner area being spaced from said stem lower end a distance substantially the same as the diameter of the hook portion so that a pipe of substantially the same diameter is cradled in said hook portion; and

f) an extended and retractable tooth extending from said stem in substantially perpendicular relation thereto and above said hook juncture, said tooth including a pin which is spring biased to an outward position extending over said pipe.

22. A pipe hanger comprising:

a) an elongate stem joined to a lower hook portion of a cradle shape, said stem having holes therethrough for nailing to a support and having an upper end and with a lower end joining said hook portion at a hook juncture;

b) said hook portion being sized to substantially cradle a pipe of selected radius to be retained by said hook portion, thereby providing said hook portion with a diameter;

c) said hook portion terminating in a hook tip; and

d) a tooth extending outwardly of said stem and inwardly toward said hook portion, said tooth originating from said stem adjacent lower end at a point above and separate from said hook juncture and protruding angularly downwardly to a tooth end, said tooth end and a portion of said hook tip contacting said pipe being spaced a distance less than the diameter of said pipe so that there is a snap fit between said tooth end and said hook tip portion as said pipe is urged therebetween and into a retained, cradling relation in said hook portion.

23. A pipe hanger comprising:

a) an elongate stem joined to a lower hook portion of a cradle shape, said stem having holes therethrough for nailing to a support and having an upper end and with a lower end joining said hook portion;

b) said hook portion being sized to cradle a pipe of selected radius to be retained by said hook portion;

c) said hook portion terminating in a hook tip; and

d) a tooth extending outwardly from a sleeve slidably mounted on said stem lower end and movable into engagement with a pipe held in said hook portion.

24. A pipe hanger comprising:

a) an elongate stem joined to a lower hook portion of a cradle shape, said stem having holes therethrough for nailing to a support and having an upper end and with a lower end joining said hook portion;

b) said hook portion being sized to cradle a pipe of selected radius to be retained by said hook portion;

c) said hook portion terminating in a hook tip; and

d) a tooth extending outwardly from a slide means movably mounted on said stem lower end and movable into engagement with a pipe held in said hook portion.