Patent US4188760A successfully refreshed from Google Patents.
US4188760A
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Masonry building block and method for forming such a block
Assignee: Individual
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Filing: 1978-06-20
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Granted: 1980-02-19
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Expires: 1998-06-20
Abstract
Abstract An insulated masonry building block and a method for forming such a block in which cementitious aggregate material is cast around an insert formed from insulating material, whereby the insert remains a part of the block.
Inventors
- 👤 John L. Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:00
CPC Classifications
B; B28; B28B; B28B23/00; B28B23/0056; E; E04; E04C; E04C1/00; E04C1/40; E04C1/41; E04B; E04B2/00; E04B2/02; E04B2002/0256; E04B2002/0289; E04B2002/0293
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
128 words
An insulating masonry building block in the form of a rectangular parallelpiped having end walls, side walls and top and bottom walls comprising: an insert formed from insulating material, said insert including a plurality of web sections spaced uniformly apart longitudinally of the block, each web section extending vertically the full height of the block and extending horizontally to a point short of the side walls of the block, and said insert having rib portions of substantially lesser vertical and horizontal extent than said web sections extending longitudinally of the block connection each web section with the next adjacent web section at substantially its mid-point; and, cementitious aggregate material molded around said insert filling the rectangular parallelpiped shape of said block and in intimate contact with said insert.
Claim 2
Dependent Claim
128 words
An insulating masonry building block in the form of a rectangular parallelpiped having end walls, side walls and top and bottom walls comprising: an insert formed from insulating material, said insert including a plurality of web sections spaced uniformly apart longitudinally of the block, each web section extending vertically the full height of the block and extending horizontally to a point short of the side walls of the block, and said insert having rib portions of substantially lesser vertical and horizontal extent than said web sections extending longitudinally of the block connection each web section with the next adjacent web section at substantially its mid-point; and, cementitious aggregate material molded around said insert filling the rectangular parallelpiped shape of said block and in intimate contact with said insert.
Claim 3
Dependent Claim
34 words
An insulating masonry building block in accordance with claim 1 wherein the top and bottom surfaces of said web sections are exposed and flush with the top and bottom walls of the building block.
Claim 4
Dependent Claim
32 words
An insulating masonry building block in accordance with claim 1 wherein the outside surfaces of the two outermost web sections are exposed and flush with the end walls of said building block.
References Cited (Backward Citations)
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Cited
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US3438161A
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US4075380A
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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) | 1983-02-18 | 1983-08-20 | 1984-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-18 | 1987-08-20 | 1988-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-18 | 1991-08-20 | 1992-02-19 | $7700.00 | Window Closed / Lapsed |