US4047357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof structure of concrete edge-to-edge abutting panels and method of interconnecting same
Assignee: Individual
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Filing: 1976-02-25
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Granted: 1977-09-13
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Expires: 1996-02-25
Abstract
Abstract Preformed concrete panels are described for use in the construction of buildings. Roof panels are designed such that they have self-sealing abutting edges when assembled, and the roof panels interlock with wall panels and, preferably, with other roof panels supported by a center building beam. One type of wall panel has a support member projecting form one surface which is adapted to support a floor structure.
Inventors
- 👤 Stanley C. Mulholland, deceased
- 👤 administratrix Wanda E. Mulholland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:27
CPC Classifications
E; E04; E04B; E04B7/00; E04B7/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
142 words
A roof structure comprising a plurality of concrete building panels supported, by a supporting means, in abutting edge-to-edge relationship, each said building panel having a downwardly projecting rib extending along each of two opposite side edges on the bottom surface of said panel, each said rib being integral with said bottom surface, a layer of foam covering said bottom surface and extending around each said rib so as to at least partially cover said opposite side edges of said panel, wherein the thickness of each rib is greater at said bottom surface of said panel than at the projecting end of said rib, wherein abutting edges of said panels are received in and supported by a V-shaped notch in said supporting means. whereby said foam on said abutting edges of said plurality of panels is compressed so as to form a seal.
Claim 2
Dependent Claim
142 words
A roof structure comprising a plurality of concrete building panels supported, by a supporting means, in abutting edge-to-edge relationship, each said building panel having a downwardly projecting rib extending along each of two opposite side edges on the bottom surface of said panel, each said rib being integral with said bottom surface, a layer of foam covering said bottom surface and extending around each said rib so as to at least partially cover said opposite side edges of said panel, wherein the thickness of each rib is greater at said bottom surface of said panel than at the projecting end of said rib, wherein abutting edges of said panels are received in and supported by a V-shaped notch in said supporting means. whereby said foam on said abutting edges of said plurality of panels is compressed so as to form a seal.
Claim 3
Dependent Claim
24 words
A roof structure in accordance with Claim 1, wherein each said panel is rectangular in shape and said ribs are parallel to each other.
Claim 4
Dependent Claim
14 words
A roof structure in accordance with Claim 1, wherein said foam is polyurethane foam.
Claim 5
Dependent Claim
28 words
A roof structure in accordance with Claim 1, wherein at least one pin is partially embedded in said bottom surface of each said panel at an oblique angle.
Claim 6
Dependent Claim
62 words
A roof structure in accordance with Claim 1, wherein one end of each said panel supports a projecting step, integral with said panel, which is adapted to be supported by, and connect to, a central support beam, and wherein the top of said projecting step is adapted to support, and mate with, one end of a roof panel having a complementary configuration.
Claim 7
Independent Claim
184 words
A method for interconnecting abutting ends of roof panels of the type which are supported by a central beam, wherein the method comprises the steps of: a. positioning one end of a first roof panel on said central beam, said end of said panel having a projecting step, integral with said panel, which is adapted to be supported by, and connect to, said central beam, and said end being covered by a layer of foam, b. connecting said end of said first roof panel to said central beam. c. positioning one end of a second roof panel solely on said projecting step of said first roof panel, wherein said end of said second roof panel is complementary to said end of said first roof panel and is adapted to connect thereto, said end of said second panel being covered by a layer of foam, d. connecting said end of said second roof panel to said end of said first roof panel by means of a pin and a tongue-in-groove connection, whereby said foam on said ends is compressed so as to form a seal.
Claim 8
Independent Claim
184 words
A method for interconnecting abutting ends of roof panels of the type which are supported by a central beam, wherein the method comprises the steps of: a. positioning one end of a first roof panel on said central beam, said end of said panel having a projecting step, integral with said panel, which is adapted to be supported by, and connect to, said central beam, and said end being covered by a layer of foam, b. connecting said end of said first roof panel to said central beam. c. positioning one end of a second roof panel solely on said projecting step of said first roof panel, wherein said end of said second roof panel is complementary to said end of said first roof panel and is adapted to connect thereto, said end of said second panel being covered by a layer of foam, d. connecting said end of said second roof panel to said end of said first roof panel by means of a pin and a tongue-in-groove connection, whereby said foam on said ends is compressed so as to form a seal.
Claim 9
Dependent Claim
26 words
A method in accordance with claim 6 comprising connecting said first roof panel to said central beam by means of a pin and a tongue-in-groove connection.
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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) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |