US3738071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tension element for constructing a prestressed tension anchor in the ground
Assignee: Walter Bau AG
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Filing: 1971-08-11
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Granted: 1973-06-12
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Expires: 1991-08-11
Abstract
Abstract Tension element for a pre-stressed tension anchor in the ground with a connection between the surface of the tension member and the wall of a bore hole, which comprises a plurality of individual elements preferably in the form of bars extending along an anchoring stretch and a tensioning stretch and bunched together in bundle form along the anchoring stretch of the element without an outer casing and provided along the tensioning stretch with individual casings, where the connection is in the form of an injected hardening material and the elements are tensioned individually.
Inventors
- 👤 K Finsterwalder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:42
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/74; E02D5/76; E02D5/80; E02D5/808
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
124 words
Tension element for producing a prestressed tension anchor in the ground by producing a connection between the surface of the tension anchor and the wall of a bore hole, said tension anchor comprising a plurality of individual elements in the form of bars extending along an anchoring stretch and a tensioning stretch, said bars being bunched together in bundle fashion along the anchoring stretch of the anchor without an outer casing and being provided along the tensioning stretch with individual casings in the form of tubes, said connection being in the form of an injected hardening material such as cement glue in the anchoring stretch between the surface of said tension anchor and said bore hole wall and said individual elements being separately tensionable.
Claim 2
Dependent Claim
124 words
Tension element for producing a prestressed tension anchor in the ground by producing a connection between the surface of the tension anchor and the wall of a bore hole, said tension anchor comprising a plurality of individual elements in the form of bars extending along an anchoring stretch and a tensioning stretch, said bars being bunched together in bundle fashion along the anchoring stretch of the anchor without an outer casing and being provided along the tensioning stretch with individual casings in the form of tubes, said connection being in the form of an injected hardening material such as cement glue in the anchoring stretch between the surface of said tension anchor and said bore hole wall and said individual elements being separately tensionable.
Claim 3
Dependent Claim
26 words
Tension element in accordance with claim 1, where said elements are profiled and provided with threads at least at the ends proximate the structure being anchored.
Claim 4
Dependent Claim
23 words
Tension element in accordance with claim 2, where the profiling of the individual elements is defined by ribs disposed along a helical path.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |