US3757477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire barrier system for multi-family dwellings
Assignee: Marcor Housing Systems Inc
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Filing: 1972-03-01
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Granted: 1973-09-11
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Expires: 1992-03-01
Abstract
Abstract In a dwelling construction system, a multi-story, multi-family building comprises prestressed concrete pallets which are supported between load bearing walls to form the floors and the ceilings of individual dwellings. Each dwelling includes a service core comprising an enclosure formed on one of the pallets and complete mechanicals for the dwelling. The service cores are fabricated by mass production techniques and are subsequently transported to the building site for installation. In some instances the service core comprises a complete dwelling, in which case the enclosure of the service core may form the exterior walls and the roof of the dwelling.
Inventors
- 👤 Crillis R Mc
- 👤 W Fuller
- 👤 R Dixon
- 👤 J Oldani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:09
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/348; E04B1/62; E04B1/92; E04B1/94; E04B1/945; E04B2001/34892
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
88 words
The method of fabricating a habitable building including dwelling units situated one above the other including the steps of: installing all of the kitchen, bathroom and temperature control facilities for a dwelling unit on a prestressed concrete pallet; mounting the pallet between the upper ends of a pair of prestressed concrete load bearing walls with one end of the pallet substantially in engagement with one of the load bearing walls; and forming a fire barrier between the opposite end of the pallet and the other load bearing wall.
Claim 2
Independent Claim
88 words
The method of fabricating a habitable building including dwelling units situated one above the other including the steps of: installing all of the kitchen, bathroom and temperature control facilities for a dwelling unit on a prestressed concrete pallet; mounting the pallet between the upper ends of a pair of prestressed concrete load bearing walls with one end of the pallet substantially in engagement with one of the load bearing walls; and forming a fire barrier between the opposite end of the pallet and the other load bearing wall.
Claim 3
Dependent Claim
67 words
The method of fabricating a habitable building according to claim 1 further characterized by forming an enclosure on the pallet which extends substantially the entire length and width of the pallet, and wherein the fire barrier forming step is characterized by extending a length of fire proof material between the portion of the enclosure at the opposite end of the pallet and the other load bearing wall.
Claim 4
Dependent Claim
75 words
The method of fabricating a habitable building according to claim 2 wherein the fire barrier forming step is further characterized by securing a length of fire proof material between the portion of the enclosure at the opposite end of the pallet and the upper surface of the pallet and securing the length of fire proof material between the upper end of the prestressed concrete load bearing walls and another portion of the load bearing wall.
Claim 5
Dependent Claim
57 words
The method of fabricating a habitable building according to claim 1 wherein the fire barrier forming step is further characterized by positioning a length of fire proof material between the upper surface of the prestressed concrete pallet and the upper surface of the adjacent load bearing wall and extending the entire width of the prestressed concrete pallet.
Claim 6
Dependent Claim
155 words
A multi-family dwelling unit comprising: a first pair of spaced, substantially vertically extending prestressed concrete load bearing wall panels; a first prestressed concrete pallet supported by the first pair of load bearing wall panels and extending between the upper ends thereof; an enclosure formed on the first prestressed concrete palleT and extending the entire length and width thereof; fire retarding means extending between one end of the first prestressed concrete pallet and the adjacent load bearing wall panel and extending substantially the entire width of the first prestressed concrete pallet; a second pair of spaced, substantially vertically extending prestressed concrete load bearing wall panels mounted on the upper ends of the first pair of wall panels and enclosing the opposite ends of the enclosure on the first concrete pallet; and a second prestressed concrete pallet extending between and supported by the upper ends of the second pair of prestressed concrete pallet load bearing wall panels.
Claim 7
Dependent Claim
155 words
A multi-family dwelling unit comprising: a first pair of spaced, substantially vertically extending prestressed concrete load bearing wall panels; a first prestressed concrete pallet supported by the first pair of load bearing wall panels and extending between the upper ends thereof; an enclosure formed on the first prestressed concrete palleT and extending the entire length and width thereof; fire retarding means extending between one end of the first prestressed concrete pallet and the adjacent load bearing wall panel and extending substantially the entire width of the first prestressed concrete pallet; a second pair of spaced, substantially vertically extending prestressed concrete load bearing wall panels mounted on the upper ends of the first pair of wall panels and enclosing the opposite ends of the enclosure on the first concrete pallet; and a second prestressed concrete pallet extending between and supported by the upper ends of the second pair of prestressed concrete pallet load bearing wall panels.
Claim 8
Dependent Claim
65 words
The multi-family dwelling unit according to claim 5 wherein the fire retarding means comprises a body of fire retarding material gripped between the first prestressed concrete pallet and one end of the enclosure thereon and between the upper surface of the adjacent one of the first pair of wall panels and the lower surface of the adjacent one of the second pair of wall panels.
Claim 9
Dependent Claim
52 words
The multi-family dwelling structure according to claim 5 wherein the enclosure comprises complete mechanicals for two dwelling units and further including a fire barrier wall extending continuously between the second pair of wall panels and the first and second prestressed concrete pallets and separating the two sets of mechanicals within the enclosure.
Claim 10
Dependent Claim
49 words
The multi-family dwelling structure according to claim 7 wherein at least the second prestressed concrete pallet includes at least one depending beam and wherein he fire barrier wall includes opposed members for receiving the depending beam and thereby extending the fire barrier wall to the second prestressed concrete pallet.
Claim 11
Dependent Claim
46 words
The multi-family dwelling structure according to claim 7 wherein the fire barrier wall comprises a stub wall mounted for sliding movement outwardly to engage one of the panels comprising the second pair of wall panels and thereby extending the fire barrier wall continuously to said panel.
References Cited (Backward Citations)
US293617A
Cited
US3162863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |