Patent US4776143A successfully refreshed from Google Patents.
US4776143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchor
Assignee: Individual
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Filing: 1987-06-11
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Granted: 1988-10-11
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Expires: 2007-06-11
Abstract
Abstract An anchor for use in slab facings comprises an anchor bolt (2), which has an inner end that is adapted to be inserted into and to be embedded in mortar in a hole (6) formed in a wall (7) to be faced and an outer end provided with a transverse rod (1) for insertion into at least one bore formed in at least one edge face of at least one facing slab (9). To ensure that the anchor can be economically fixed and that the facing slabs can be mounted quickly, the anchor bolt (2) is provided at its inner end with a cylindrical enlarged portion (4), which has an embossed or channeled peripheral surface, and the anchor bolt is provided between the transverse rod (1) and the enlarged portion (4) with a driving sleeve (3), which is slidably mounted on the bolt and has a serrated or finned surface, which is larger in outside diameter than the enlarged portion (4).
Inventors
- 👤 Ferdinand Pointner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:01
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0832; E04F13/0853; F; F16; F16B; F16B13/00; F16B13/14; F16B13/141
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
177 words
In an anchor for mounting on a wall formed with a mortar-containing hole, at least one facing slab having an edge face, said anchor comprising: an anchor bolt having an inner end portion adapted to be inserted into said mortar-containing hole, an outer end portion, which is provided with a transverse rod that is adapted to be fitted into said bore, and an intermediate portion between said inner end portion and said transverse rod, the improvement wherein said anchor bolt is provided on said inner end portion with a cylindrical enlarged portion, which is larger in diameter than said intermediate portion and has a peripheral surface formed with elevated and recessed surface portions, a driving sleeve is axially slidably mounted on said intermediate portion and is larger in outside diameter than said enlarged portion and has an inside diameter that is smaller in diameter than the outside diameter of said enlarged portion, and said driving sleeve has an outside peripheral surface that is formed with generally peripherally extending, radially elevated surface portions, which are axially spaced apart.
Claim 2
Dependent Claim
177 words
In an anchor for mounting on a wall formed with a mortar-containing hole, at least one facing slab having an edge face, said anchor comprising: an anchor bolt having an inner end portion adapted to be inserted into said mortar-containing hole, an outer end portion, which is provided with a transverse rod that is adapted to be fitted into said bore, and an intermediate portion between said inner end portion and said transverse rod, the improvement wherein said anchor bolt is provided on said inner end portion with a cylindrical enlarged portion, which is larger in diameter than said intermediate portion and has a peripheral surface formed with elevated and recessed surface portions, a driving sleeve is axially slidably mounted on said intermediate portion and is larger in outside diameter than said enlarged portion and has an inside diameter that is smaller in diameter than the outside diameter of said enlarged portion, and said driving sleeve has an outside peripheral surface that is formed with generally peripherally extending, radially elevated surface portions, which are axially spaced apart.
Claim 3
Dependent Claim
15 words
The improvement defined in claim 1, wherein said enlarged portion has an embossed peripheral surface.
Claim 4
Dependent Claim
15 words
The improvement defined in claim 1, wherein said enlarged portion has a channeled peripheral surface.
Claim 5
Dependent Claim
16 words
The improvement defined in claim 1, wherein said driving sleeve has a serrated outside peripheral surface.
Claim 6
Dependent Claim
16 words
The improvement defined in claim 1, wherein said driving sleeve has a finned outside peripheral surface.
Claim 7
Dependent Claim
26 words
The improvement defined in claim 1, wherein said driving sleeve is made of plastic and has a continuous longitudinal slot, which is open at both ends.
Claim 8
Dependent Claim
23 words
The improvement defined in claim 1, wherein said enlarged portion is constituted by a metal sleeve, which is axially fixed to said bolt.
Claim 9
Dependent Claim
17 words
The improvement defined in claim 7, wherein said metal sleeve is an interference fit on said bolt.
Claim 10
Dependent Claim
18 words
The improvement defined in claim 8 wherein said metal sleeve is connected to said bolt by a weld.
Claim 11
Dependent Claim
43 words
The improvement set forth in claim 1, wherein said enlarged portion has a radial end face facing said driving sleeve and said driving sleeve has a radial end face which faces and is adapted to abut said end face of said enlarged portion.
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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) | 1991-10-11 | 1992-04-11 | 1992-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-11 | 1996-04-11 | 1996-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-11 | 2000-04-11 | 2000-10-11 | $7700.00 | Window Closed / Lapsed |