US3766574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated plumbing partition
Assignee: SMID H PLUMBING AND HEATING CO I
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Filing: 1970-10-22
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Granted: 1973-10-23
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Expires: 1990-10-22
Abstract
Abstract A prefabricated plumbing partition adapted for installation in the wall of a building, comprising a plumbing assembly encapsulated in a cellular polyurethane block. Water supply or drain nipples protruding from the block permit two or more such partitions to be joined together by penetrating the plastic of an adjacent block to form an easily transported package unit which requires no additional protective packaging.
Inventors
- 👤 H Smid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:36
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/44; E04C2/52; E04C2/521
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
105 words
A prefabricated plumbing partition adapted to be installed within the wall of a building comprising an operative plumbing assembly containing at least one water supply pipe, one soil stack and one vent stack, said arrangement being encapsulated in an integral, foamed-in-place block of solid low density cellular polyurethane, said block having two major generally parallel faces and having a portion of said assembly protruding from at least one of said faces to a length sufficient to permit combining said partitions into a self-sustaining package unit held together solely by penetration of said protruding portion of one partition into the polyurethane block of an adjacent partition.
Claim 2
Dependent Claim
105 words
A prefabricated plumbing partition adapted to be installed within the wall of a building comprising an operative plumbing assembly containing at least one water supply pipe, one soil stack and one vent stack, said arrangement being encapsulated in an integral, foamed-in-place block of solid low density cellular polyurethane, said block having two major generally parallel faces and having a portion of said assembly protruding from at least one of said faces to a length sufficient to permit combining said partitions into a self-sustaining package unit held together solely by penetration of said protruding portion of one partition into the polyurethane block of an adjacent partition.
Claim 3
Dependent Claim
34 words
A prefabricated plumbing partition in accordance with claim 1 in which said polyurethane has a density of about 2-3 pounds per cubic foot and a compressive strength of about 34-45 pounds per square inch.
Claim 4
Dependent Claim
19 words
The partition of claim 1 in which said protruding portion is located on only one of said major faces.
Claim 5
Dependent Claim
16 words
The partition of claim 1 in which said assembly protrudes from both of said major faces.
References Cited (Backward Citations)
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Cited
US2653357A
Cited
US2645783A
Cited
CH375300A
Cited
US3381313A
Cited
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Cited
US3511017A
Cited
US3590393A
Cited
US3611451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |