US4022859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing shaped concrete blocks for hydraulics
Assignee: Montan-Castell AG
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Filing: 1974-12-12
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Granted: 1977-05-10
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Expires: 1994-12-12
Abstract
Abstract A method of producing shaped concrete blocks for hydraulics, such blocks having two spaced arms formed at right angles to each other and spaced from each other and a web interconnecting the centers of said arms, wherein said block is formed by concreting in a dismountable shuttering with the arms located horizontally and the web vertically, it being possible to use a shuttering having a stationary, lower shuttering part which has a horizontal longitudinal axis for forming substantially half of one arm of the block and two shuttering parts separatable from the formed block by lateral movement.
Inventors
- 👤 Mauro Fioretto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:10
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/0029; B28B7/0035; B28B7/0044; E; E02; E02B; E02B3/00; E02B3/04; E02B3/12; E02B3/129
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
185 words
A method of producing a shaped concrete block having two spaced arms formed at right angles to each other and a web at right angles to both of the arms and connecting the centers thereof, comprising: providing a mold having first, second, third and fourth portions and a base for concreting said concrete block with the arms located horizontally one above the other and the web vertically; filling said mold with concrete; pivoting and first and second mold portions away from each other about a horizontal axis at the top thereof to expose lateral and upper surfaces of said block after said concrete has set whereby said first and second mold portions thereby may be reused; supporting the upper arm by said third and fourth portions while said block rests on said base as the concrete cures; and pivoting said third and fourth portions away from each other about spaced axes at the bottom thereof to release the block after said concrete is cured; said axis of said first and second portions being orthogonal with respect to the axes of said third and fourth portions.
Claim 2
Independent Claim
185 words
A method of producing a shaped concrete block having two spaced arms formed at right angles to each other and a web at right angles to both of the arms and connecting the centers thereof, comprising: providing a mold having first, second, third and fourth portions and a base for concreting said concrete block with the arms located horizontally one above the other and the web vertically; filling said mold with concrete; pivoting and first and second mold portions away from each other about a horizontal axis at the top thereof to expose lateral and upper surfaces of said block after said concrete has set whereby said first and second mold portions thereby may be reused; supporting the upper arm by said third and fourth portions while said block rests on said base as the concrete cures; and pivoting said third and fourth portions away from each other about spaced axes at the bottom thereof to release the block after said concrete is cured; said axis of said first and second portions being orthogonal with respect to the axes of said third and fourth portions.
Claim 3
Dependent Claim
20 words
A method as claimed in claim 1 in which all the concrete is charged through an upper, central charging opening.
Claim 4
Dependent Claim
23 words
A method as claimed in claim 2 in which the charged concrete is shaped by hand in the region of the filling opening.
Claim 5
Dependent Claim
50 words
A method as claimed in claim 2, in which the filling opening is closed with a cover after the greater proportion of concrete has been charged and then further concrete is charged below the cover for forming the shaped concrete block and the concrete is vibrated at the same time.
Claim 6
Dependent Claim
44 words
A method as claimed in claim 1 in which the concrete is vibrated in the lower part of the mold by means of vibrators mounted on the mold and in the upper part of the mold by means of vibrator rods inserted from above.
Claim 7
Dependent Claim
35 words
A method as claimed in claim 1 in which, after the concrete has cured, the shaped concrete block is lifted out of the mold by means of belts or cables passed below the upper arm.
References Cited (Backward Citations)
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US2900699A
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US3009229A
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US3582034A
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US3636713A
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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) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |