US4400920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for securing pipe
Assignee: LSP Specialty Products Co
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Filing: 1981-04-16
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Granted: 1983-08-30
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Expires: 2001-04-16
Abstract
Abstract In high-rise and mid-rise buildings wherein a concrete slab serves as a floor for one level and a ceiling for the level below it, it is necessary to secure vertical plumbing pipes to the slab wherein the plumbing pipes penetrate the slab through holes passing between the levels. An apparatus for securing these pipes includes a first and second member. Each of the members includes a base having a first and second end. Each of the members include one or more ribs attaching perpendicular to the base and extending between the ends of the base. The ribs on each of the members taper from the first end toward the second end of the base such that in side view each of the members is wedge shape in cross-section. The first member is located in the hole in the slab adjacent to the pipe by inserting from the top and the second member is located by so inserting through the bottom. This orients the members such that the large ends of their tapers are distal from each other. The pipe is fixed to the hole by moving the members toward one another such that each slides upon the taper of the other, respectively. This spreads the base of the first and second members such that one impinges against the side of the hole and the other impinges against the pipe. The members are fixed with respect to each other by suitable solvent welding techniques or the like to fixly maintain the pipe in its location within the hole in the slab.
Inventors
- 👤 Duane D. Logsdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:55
CPC Classifications
F; F16; F16L; F16L5/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
245 words
An apparatus for securing a pipe to a structural wall, floor or ceiling element wherein said pipe penetrates through said element by passing through a hole in said element which comprises: a first member and a second member; each of said members including a base having a first end and a second end; each of said members having at least one rib attaching essentially perpendicular to said base of said member and extending between the ends of said base, said ribs on each of said members tapering from said first end to said second end of the base to which it is attached such that in side view each of said members is wedge shaped; said first and said second members locatable in said hole next to said pipe such that said first end of said first member is oriented toward said second end of said second member and said second end of said first member is oriented toward said first end of said second member positioning said second end of each of said members against the rib of the other of said members and a portion of each of said ribs of said first and said second members interdigitized so as when said first ends of each of said members are brought closer together said bases of said first and said second member are extended away from each other one impinging against said pipe and the other impinging against the walls of said hole.
Claim 2
Independent Claim
245 words
An apparatus for securing a pipe to a structural wall, floor or ceiling element wherein said pipe penetrates through said element by passing through a hole in said element which comprises: a first member and a second member; each of said members including a base having a first end and a second end; each of said members having at least one rib attaching essentially perpendicular to said base of said member and extending between the ends of said base, said ribs on each of said members tapering from said first end to said second end of the base to which it is attached such that in side view each of said members is wedge shaped; said first and said second members locatable in said hole next to said pipe such that said first end of said first member is oriented toward said second end of said second member and said second end of said first member is oriented toward said first end of said second member positioning said second end of each of said members against the rib of the other of said members and a portion of each of said ribs of said first and said second members interdigitized so as when said first ends of each of said members are brought closer together said bases of said first and said second member are extended away from each other one impinging against said pipe and the other impinging against the walls of said hole.
Claim 3
Dependent Claim
52 words
The apparatus of claim 1 wherein: at least said first of said members including at least two ribs spaced apart one from the other is an essentially parallel relationship formig a void between said two ribs on said first member, said rib on said second of said members fitting into said void.
Claim 4
Dependent Claim
73 words
The apparatus of claim 2 wherein: said second member includes at least 2 ribs spaced apart one from the other in an essentially parallel relationship forming a void between said ribs on said second member, one of said ribs on said first member fitting into said void between said ribs on said member and one of said ribs on said second member fitting into said void between said ribs on said first member.
Claim 5
Dependent Claim
17 words
The apparatus of claim 3 wherein: said first and said second members are identical with each other.
Claim 6
Dependent Claim
69 words
The apparatus of claim 3 wherein: each of said first and second members includes 3 ribs spaced apart from each other in an essentially parallel relationship forming a first void between the middle of said 3 ribs and one of the outside 2 of said 3 ribs and a second void between the middle of said 3 ribs and the other of said outside 2 of said 3 ribs.
Claim 7
Dependent Claim
17 words
The apparatus of claim 3 wherein: said first and said second members are nonidentical with each other.
Claim 8
Dependent Claim
33 words
The apparatus of claim 6 wherein: one of said first or said second members includes one more rib than the number of ribs on the other of said first or said second members.
Claim 9
Dependent Claim
62 words
The apparatus of claim 3 wherein: each of said ribs includes a first surface and a second surface, said second surface interspaced between said first surface and said second end of said member on which said ribs are located, the angle formed between said second surface and said base being greater than the angle formed between said first surface and said base.
Claim 10
Dependent Claim
17 words
The apparatus of claim 8 wherein: said first and said second members are identical with each other.
Claim 11
Dependent Claim
69 words
The apparatus of claim 9 wherein: each of said first and second members includes 3 ribs spaced apart from each other in an essentially parallel relationship forming a first void between the middle of said 3 ribs and one of the outside 2 of said 3 ribs and a second void between the middle of said 3 ribs and the other of said outside 2 of said 3 ribs.
Claim 12
Dependent Claim
17 words
The apparatus of claim 8 wherein: said first and said second members are nonidentical with each other.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |