Patent US4000623A successfully refreshed from Google Patents.
US4000623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchor rod for walls, bulkheads and the like
Assignee: Individual
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Filing: 1975-06-02
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Granted: 1977-01-04
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Expires: 1995-06-02
Abstract
Abstract An anchor rod for supporting walls, bulkheads and the like, comprises: an anchoring body to be cemented to the ground, at the bottom of a hole for the rod, by burying it into a casting of cement mixture, forming therewith the anchor bulb of the rod; traction cables connecting said anchoring body to a head-piece being fixed to the wall or like to be supported; two pipes containing and protecting said cables inside said hole, the first of said pipes carrying centering members, distributed throughout its length, and an inflatable plugging sleeve close to its end opposite to the head-piece, while the second pipe is telescoped into the first one, in correspondence of the end; and one pipe for feeding said cement mixture to form said bulb. The anchoring body consists of a frustoconical element, connected with its minor base to the end of said second pipe and housing, at its major outer base, a connection plate for the traction cables, being crossed by the pipe for feeding the cement mixture.
Inventors
- 👤 Pietro Meardi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:29
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/74; E02D5/76
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
185 words
An anchor rod for supporting walls, bulkheads, and the like, and adapted to extend into an elongated hole in the ground and to be anchored in said hole, said rod comprising a central pipe that extends into the hole for feeding cement into the hole, a plurality of cables extending lengthwise of the hole and surrounding said central pipe, a pair of telescoping pipes surrounding said cables, one of said telescoping pipes being disposed adjacent the inner end of the hole and the other adjacent the outer end of the hole, an inflatable plugging sleeve on said other pipe, the ends of said cables within said hole being secured to said one telescoping pipe, said one telescoping pipe carrying a frustoconical element whose small end points in a direction out of the hole, and a headpiece fixed to the wall or the like to be supported, the other ends of said cables being connected to the headpiece for tightening the cables to draw said frusto-conical element in a direction out of the hole thereby to compress cement between said frusto-conical element and the inflatable sleeve.
Claim 2
Dependent Claim
185 words
An anchor rod for supporting walls, bulkheads, and the like, and adapted to extend into an elongated hole in the ground and to be anchored in said hole, said rod comprising a central pipe that extends into the hole for feeding cement into the hole, a plurality of cables extending lengthwise of the hole and surrounding said central pipe, a pair of telescoping pipes surrounding said cables, one of said telescoping pipes being disposed adjacent the inner end of the hole and the other adjacent the outer end of the hole, an inflatable plugging sleeve on said other pipe, the ends of said cables within said hole being secured to said one telescoping pipe, said one telescoping pipe carrying a frustoconical element whose small end points in a direction out of the hole, and a headpiece fixed to the wall or the like to be supported, the other ends of said cables being connected to the headpiece for tightening the cables to draw said frusto-conical element in a direction out of the hole thereby to compress cement between said frusto-conical element and the inflatable sleeve.
Claim 3
Dependent Claim
29 words
An anchor rod as claimed in claim 1, said frusto-conical element being connected by welding to the end of said one telescoping pipe which is deepest within the hole.
Claim 4
Dependent Claim
21 words
An anchor rod as claimed in claim 1, said cables being steel strands arranged in a crown within said telescoping pipes.
Claim 5
Dependent Claim
40 words
An anchor rod as claimed in claim 1, a first of said telescoping pipes extending within a second of said telescoping pipes, the first telescoping pipe having thereon a sleeve that surrounds the adjacent end of said second telescoping pipe.
Claim 6
Dependent Claim
15 words
An anchor rod as claimed in claim 1, said frusto-conical element having circumferential projections thereon.
Claim 7
Dependent Claim
30 words
An anchor rod as claimed in claim 1, and a stepped sheet metal binding extending the taper of said frusto-conical element along a short length of said other telescoping pipe.
Claim 8
Dependent Claim
21 words
An anchor rod as claimed in claim 1, and a tube extending within said telescoping pipes for inflating said inflatable sleeve.
Claim 9
Dependent Claim
19 words
An anchor rod as claimed in claim 1, said central pipe extending a short distance beyond said frusto-conical element.
Claim 10
Dependent Claim
36 words
An anchor rod as claimed in claim 8, the inner end of said central pipe being closed, said central pipe having lateral holes therethrough adjacent its inner end, said holes being protected by a flexible sheath.
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) | 1980-01-04 | 1980-07-05 | 1981-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-04 | 1984-07-05 | 1985-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-04 | 1988-07-05 | 1989-01-04 | $7700.00 | Window Closed / Lapsed |