Patent US3817013A successfully refreshed from Google Patents.
US3817013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated concrete block
Assignee: Individual
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Filing: 1971-08-26
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Granted: 1974-06-18
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Expires: 1991-08-26
Abstract
Abstract In unit masonry construction a building wall usually consists of one or two wythes of masonry with or without either an air space or an insulation layer. The use of a concrete building block unit that contained within it an insulation insert, would permit the construction of a single wythe wall. Such an insulated block could have satisfactory strength and thermal insulation characteristics by the design form of the insulation insert. Sound insulation characteristics could be improved by the inclusion of a lead sheet on the insulation insert. The use of an insulation strip in the joints and a specially designed corner block would result in a single wythe wall of improved insulation characteristics.
Inventors
- 👤 D Selby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:03
CPC Classifications
E; E04; E04C; E04C1/00; E04C1/40; E04C1/41
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
338 words
Building blocks for walls or like structures, each of said blocks being a complete integral composite building unit comprising: a top, a bottom and a lateral outer periphery defining sides and ends, first and second concrete members, each being one piece and having an outwardly facing surface forming at least the said sides of the outer periphery of the block and an inwardly facing surface, which inwardly facing surfaces face each other, an insulating insert occupying the entire space between the said inner facing surfaces from one point on the outer periphery of the block to another point on the outer periphery thereof and from the top of the block to the bottom thereof so as to form a continuous insulating member in the block, said space and its respective insulating member, when viewed from above, forming the shape of a keystone interlock including a mid-portion which is parallel with and spaced slightly inwardly from the outward facing surface of the first member and closer to said outer facing surface of the first concrete member than to the outer facing surface of the second concrete member, end portions closer to the said outer facing surface of the second concrete member than to the outer facing surface of the first concrete member and at least one of said end portions being parallel to the mid-portion, and intermediate portions extending from the ends of the mid-portion And converging towards each other to form said keystone shape and connected to the two inner ends of said end portions, the two outer ends of the said end portions extending from their connections with said intermediate portions to said outer periphery of the block, the first member thus including the recess of the keystone and the second member including the projection of the keystone, and wherein the top and bottom edges of the insulating insert are chamfered, and the adjacent top and bottom edges of the first and second concrete members are moulded to conform with the chamfered edges of the insulating insert.
Claim 2
Dependent Claim
338 words
Building blocks for walls or like structures, each of said blocks being a complete integral composite building unit comprising: a top, a bottom and a lateral outer periphery defining sides and ends, first and second concrete members, each being one piece and having an outwardly facing surface forming at least the said sides of the outer periphery of the block and an inwardly facing surface, which inwardly facing surfaces face each other, an insulating insert occupying the entire space between the said inner facing surfaces from one point on the outer periphery of the block to another point on the outer periphery thereof and from the top of the block to the bottom thereof so as to form a continuous insulating member in the block, said space and its respective insulating member, when viewed from above, forming the shape of a keystone interlock including a mid-portion which is parallel with and spaced slightly inwardly from the outward facing surface of the first member and closer to said outer facing surface of the first concrete member than to the outer facing surface of the second concrete member, end portions closer to the said outer facing surface of the second concrete member than to the outer facing surface of the first concrete member and at least one of said end portions being parallel to the mid-portion, and intermediate portions extending from the ends of the mid-portion And converging towards each other to form said keystone shape and connected to the two inner ends of said end portions, the two outer ends of the said end portions extending from their connections with said intermediate portions to said outer periphery of the block, the first member thus including the recess of the keystone and the second member including the projection of the keystone, and wherein the top and bottom edges of the insulating insert are chamfered, and the adjacent top and bottom edges of the first and second concrete members are moulded to conform with the chamfered edges of the insulating insert.
Claim 3
Dependent Claim
38 words
Building blocks as set forth in claim 1, both of said end portions being parallel to said mid-portion and being aligned with each other and extending to the said ends of the said outer periphery of the block.
Claim 4
Dependent Claim
34 words
Building blocks as set forth in claim 2, wherein both ends of each block are recessed from top to bottom so as to form with the adjacent blocks vertical recesses at both ends thereof.
Claim 5
Dependent Claim
39 words
Building blocks as set forth in claim 1, in which the extreme ends of the insulating inserts are aligned with the ends of the insulating inserts in adjacent blocks to form an essentially continuous insulating member in a wall.
Claim 6
Dependent Claim
56 words
Building blocks as set forth in claim 1, in which the inner facing surface of said first concrete member is moulded to the shape of the adjacent surface of said insulating insert and the inner facing surface of said second conrete member is moulded to the shape of the adjacent surface of the said insulating insert.
Claim 7
Dependent Claim
29 words
Building blocks as set forth in claim 1, in which that portion of the second concrete member forming the projection of the keystone interlock includes a vertical aperture therethrough.
Claim 8
Dependent Claim
41 words
Building blocks as set forth in claim 1, in which one of the end portions of the insulating insert extends from its connection with its respective intermediate portion to the outer facing surface of the second concrete member and perpendicular thereto.
Claim 9
Dependent Claim
57 words
Building blocks as set forth in claim 7, wherein the end portion of the insert which is perpendicular to the mid-portion is spaced from its adjacent end of its block the same distance as the other said end portion which is parallel to the mid-portion is spaced from the outer facing surface of the second concrete member.
Claim 10
Dependent Claim
36 words
Building blocks as set forth in claim 1, in which the ends of the adjacent blocks in a wall are mortar joined and include an insulating strip between exposed facing end portions of the insulating insert.
Claim 11
Dependent Claim
35 words
Building blocks as set forth in claim 1, in which a sheet of lead foil is inserted between the surface of the said insulating insert and the adjacent surface of one of said concrete members.
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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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |