Patent US3810335A successfully refreshed from Google Patents.
US3810335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire barrier system for multi-family dwellings
Assignee: MARCOR HOUSING SYST INC US
•
Filing: 1973-05-03
•
Granted: 1974-05-14
•
Expires: 1993-05-03
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
- 👤 R Mccrillis
- 👤 W Fuller
- 👤 R Dixon
- 👤 J Oldani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:36
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/348; E04B1/62; E04B1/92; E04B1/94; E04B1/945; E04B2001/34892
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
134 words
The multi-family dwelling unit comprising: a pair of spaced, substantially vertically extending load bearing wall means; a first prestressed concrete pallet supported on the load bearing wall means and comprising a substantially planar deck and a plurality of beams depending from the deck; two sets of mechanicals mounted on the first pallet and each comprising complete kitchen, bathroom and temperature control facilities for a dwelling unit; a second prestressed concrete pallet supported on the load bearing wall means above the first pallet and comprising a substantially planar deck and a plurality of beams depending from the deck; and a fire barrier wall mounted on the first pallet between the two sets of mechanicals and extending continuously between the load bearing wall means and between the deck of the first pallet and the second pallet.
Claim 2
Dependent Claim
134 words
The multi-family dwelling unit comprising: a pair of spaced, substantially vertically extending load bearing wall means; a first prestressed concrete pallet supported on the load bearing wall means and comprising a substantially planar deck and a plurality of beams depending from the deck; two sets of mechanicals mounted on the first pallet and each comprising complete kitchen, bathroom and temperature control facilities for a dwelling unit; a second prestressed concrete pallet supported on the load bearing wall means above the first pallet and comprising a substantially planar deck and a plurality of beams depending from the deck; and a fire barrier wall mounted on the first pallet between the two sets of mechanicals and extending continuously between the load bearing wall means and between the deck of the first pallet and the second pallet.
Claim 3
Dependent Claim
36 words
The multi-family dwelling unit according to claim 1 wherein the fire barrier wall further comprises means for receiving one of the beams of the second pallet to complete the upper portion of the fire barrier wall.
Claim 4
Dependent Claim
40 words
The multi-family dwelling unit according to claim 2 wherein the fire barrier wall further includes a member supported for sliding movement into engagement with one of the load bearing wall means to complete one end of the fire barrier wall.
Claim 5
Independent Claim
128 words
A method of forming a dwelling unit comprising: forming an enclosure including a fire barrier wall comprising a pair of beam receiving flanges at the upper end and a retracted stub wall at one side on a first prestressed concrete pallet; positioning a pair of prestressed concrete load bearing walls at the opposite ends of the first prestressed concrete pallet; sliding the stub wall outwardly and into engagement with one of the load bearing walls to extend the fire barrier wall the entire width of the enclosure; and positioning a sEcond prestressed concrete pallet on the spaced load bearing walls with a beam of the second pallet received in the flanges of the fire barrier to extend the fire barrier wall to the entire height of the enclosure.
Claim 6
Independent Claim
128 words
A method of forming a dwelling unit comprising: forming an enclosure including a fire barrier wall comprising a pair of beam receiving flanges at the upper end and a retracted stub wall at one side on a first prestressed concrete pallet; positioning a pair of prestressed concrete load bearing walls at the opposite ends of the first prestressed concrete pallet; sliding the stub wall outwardly and into engagement with one of the load bearing walls to extend the fire barrier wall the entire width of the enclosure; and positioning a sEcond prestressed concrete pallet on the spaced load bearing walls with a beam of the second pallet received in the flanges of the fire barrier to extend the fire barrier wall to the entire height of the enclosure.
References Cited (Backward Citations)
US1077198A
Cited
US3162863A
Cited
US3377755A
Cited
US3550334A
Cited
US3570199A
Cited
US3638376A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |