Patent US3874134A successfully refreshed from Google Patents.
US3874134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular building units
Assignee: THEODORE CHARLES AJ
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Filing: 1973-05-29
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Granted: 1975-04-01
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Expires: 1993-05-29
Abstract
Abstract The modular building unit comprises an integral frame of floor, ceiling and wall elements, covered on its interior surface with an integral cover member anchored to the frame. The cover member is made up of an apertured core such as wire mesh and spaced rods embedded in cementitious material. The exterior is completed where exposed to the atmosphere by inserting finishing elements between adjacent frame members and by a variety of exterior covers as may be desired.
Inventors
- 👤 Albert Feldman
- 👤 Robert Feldman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:19
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/348; E04B1/34815; E04B1/3483; E04B1/34823; G; G01; G01R; G01R31/00; G01R31/36
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
183 words
A cementitious building unit having at least a floor, two opposing walls and a ceiling, a continuous interior surface and a ribbed exterior, comprising: a. framing elements for the floor, ceiling and exterior walls, said framing elements consisting of upper peripheral horizontal framing elements, lower peripheral horizontal framing elements, vertical framing elements extending between said upper and lower elements and intermediate horizontal framing elements extending between said peripheral horizontal elements: b. at least one layer of wire mesh attached to said framing elements and extending over the interior surfaces of said framing elements so as to form the core for the floor, ceiling and exterior walls; provision being made in said framing elements and wire mesh layers for open portions, such as windows, doors, chimneys, conduit spaces and the like; and c. a mass of cementitious material interspersed in and surrounding said wire mesh layers so as to form the floor, ceiling and exterior walls as a continuous interior surface, with the forming elements forming exterior rIbs; the portions of said floor, ceiling and walls which extend between said framing elements being thin.
Claim 2
Dependent Claim
183 words
A cementitious building unit having at least a floor, two opposing walls and a ceiling, a continuous interior surface and a ribbed exterior, comprising: a. framing elements for the floor, ceiling and exterior walls, said framing elements consisting of upper peripheral horizontal framing elements, lower peripheral horizontal framing elements, vertical framing elements extending between said upper and lower elements and intermediate horizontal framing elements extending between said peripheral horizontal elements: b. at least one layer of wire mesh attached to said framing elements and extending over the interior surfaces of said framing elements so as to form the core for the floor, ceiling and exterior walls; provision being made in said framing elements and wire mesh layers for open portions, such as windows, doors, chimneys, conduit spaces and the like; and c. a mass of cementitious material interspersed in and surrounding said wire mesh layers so as to form the floor, ceiling and exterior walls as a continuous interior surface, with the forming elements forming exterior rIbs; the portions of said floor, ceiling and walls which extend between said framing elements being thin.
Claim 3
Dependent Claim
33 words
The building unit of claim 1 wherein the portions of said floor, ceiling and walls which extend between said framing elements have their outer wire mesh layers close to the surface after cementing.
Claim 4
Dependent Claim
31 words
The building unit of claim 1 wherein the thickness of the portions of said floor, ceiling and walls which extend between said framing elements is approximately 1/2 to 1 1/2 inches.
Claim 5
Dependent Claim
24 words
The building unit of claim 1 wherein spaced rods are used in conjunction with said wire mesh and are embedded in said cementitious material.
Claim 6
Dependent Claim
15 words
The building unit of claim 1 wherein a said framing element is a metallic member.
Claim 7
Dependent Claim
18 words
The building unit of claim 1 wherein a said framing element comprises metallic elements embedded in cementitious material.
Claim 8
Dependent Claim
17 words
The building unit of claim 1 where said cementitious material consists essentially of Portland cement and sand.
Claim 9
Dependent Claim
23 words
The building unit of claim 1 wherein a said framing element comprises spaced rods wrapped with wire mesh and embedded in cementitious material.
Claim 10
Dependent Claim
37 words
The building unit of claim 8 made by first assembling and tying together all rods and wire mesh to form a skeleton and then embedding the skeleton in cementitious material consisting essentially of Portland cement and sand.
Claim 11
Dependent Claim
34 words
The building unit of claim 1 wherein there are exterior finishing elements fitted in between adjacent framing elements so as to cover selected portions of the exterior surface of the cementitious wire mesh layer.
Claim 12
Dependent Claim
21 words
The building unit of claim 10 wherein said finishing elements include sheets of insulating material fitted in between adjacent framing elements.
Claim 13
Dependent Claim
17 words
The building unit of claim 1 positioned on another building unit made in accordance with claim 1.
Claim 14
Dependent Claim
22 words
The building unit of claim 1 wherein there are a floor, ceiling and two opposite walls, with the end walls being open.
Claim 15
Dependent Claim
53 words
The building unit of claim 1 wherein said cementitious material consists essentially of Portland cement and sand, the thickness of the portions of said floor, ceiling and walls which extend between said framing elements is approximately 1/2 to 1 1/2 inches, and a said framing element comprises metallic elements embedded in cementitious material.
Claim 16
Dependent Claim
174 words
A cementitious building unit having at least a floor, two opposing walls and a ceiling, a continuous interior surface and a ribbed exterior, comprising: a. framing elements for the floor, ceiling and exterior walls, said framing elements including peripheral horizontal framing elements each of which contains a channel member anchored to rods wrapped with wire mesh and embedded in cementitious material; b. at least one layer of wire mesh attached to said framing elements and extending over the interior surfaces of said framing elements so as to form the core for the floor, ceiling and exterior walls; provision being made in said framing elements and wire mesh layers for open portions, such as windows, doors, chimneys, conduit spaces and the like; and c. a mass of cementitious material interspersed in the surrounding said wire mesh layers so as to form the floor, ceiling and exterior walls as a continuous interior surface, with the framing elements forming exterior ribs; the portions of said floor, ceiling and walls which extend between said framing elements being thin.
Claim 17
Dependent Claim
174 words
A cementitious building unit having at least a floor, two opposing walls and a ceiling, a continuous interior surface and a ribbed exterior, comprising: a. framing elements for the floor, ceiling and exterior walls, said framing elements including peripheral horizontal framing elements each of which contains a channel member anchored to rods wrapped with wire mesh and embedded in cementitious material; b. at least one layer of wire mesh attached to said framing elements and extending over the interior surfaces of said framing elements so as to form the core for the floor, ceiling and exterior walls; provision being made in said framing elements and wire mesh layers for open portions, such as windows, doors, chimneys, conduit spaces and the like; and c. a mass of cementitious material interspersed in the surrounding said wire mesh layers so as to form the floor, ceiling and exterior walls as a continuous interior surface, with the framing elements forming exterior ribs; the portions of said floor, ceiling and walls which extend between said framing elements being thin.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |