US4152382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of slip forming concrete
Assignee: Individual
•
Filing: 1977-11-10
•
Granted: 1979-05-01
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Expires: 1997-11-10
Abstract
Abstract A method of slip forming concrete comprising moving concrete continuously through a formwork, and continuously extracting a portion of the water of said concrete prior to its release from said form.
Inventors
- 👤 Gerald A. Catenacci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:53
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/08; B28B1/093; B28B1/0935; B28B1/084; B28B7/00; B28B7/40; B28B7/46; E; E01; E01C; E01C19/00; E01C19/48; E01C19/4886; E01C19/4893
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
49 words
A method of slip forming concrete comprising the steps of: continuously moving concrete through a formwork, continuously passing said concrete around water extracting means, and continuously vibrating said water extraction means thereby extracting a portion of the water content of said concrete, prior to its release from said formwork.
Claim 2
Independent Claim
49 words
A method of slip forming concrete comprising the steps of: continuously moving concrete through a formwork, continuously passing said concrete around water extracting means, and continuously vibrating said water extraction means thereby extracting a portion of the water content of said concrete, prior to its release from said formwork.
Claim 3
Dependent Claim
48 words
A method as claimed in claim 1 including the step of continuously passing said concrete around a tubular screen water permeable extraction member, continuously vibrating said water extraction member whereby to facilitate flow of water from said concrete into said member, and continuously passing water from said member.
Claim 4
Dependent Claim
37 words
A method of slip forming concrete as claimed in claim 1 wherein concrete is placed in a hopper, and moves from said hopper into a form, wherein said water removal step takes place continuously in said hopper.
Claim 5
Dependent Claim
27 words
A method of slip forming concrete as claimed in claim 3 including a water extraction member in said hopper and wherein said member is subjected to vibration.
Claim 6
Dependent Claim
42 words
A method of slip forming concrete as claimed in claim 4 wherein said water extraction member has a hollow interior, and perforated walls, and wherein water passes from said concrete through said perforations and into said hollow interior, and is then removed.
Claim 7
Dependent Claim
23 words
A method of slip forming concrete as claimed in claim 5 wherein said water flows out of the lower end of said member.
Claim 8
Dependent Claim
20 words
A method of slip forming concrete as claimed in claim 5 wherein said water is pumped out of said member.
References Cited (Backward Citations)
US3452406A
Cited
US3685405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |