Patent US4968185A successfully refreshed from Google Patents.
US4968185A
Expired / Lapsed
US
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Metal mesh sleeve for dowel assembly
Assignee: Hilti AG
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Filing: 1989-04-18
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Granted: 1990-11-06
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Expires: 2009-04-18
Abstract
Abstract A dowel assembly for use as an anchor in a structural material, such as a light and hollow structural material, includes an axially extending sleeve formed of expanded metal for receiving a hardenable mass and an anchor member. The sleeve is closed at its leading end and is open at its trailing end. The leading end is closed by folds formed in the expanded metal and the trailing end has an outwardly projecting flange. Such a sleeve fabricated from expanded metal is inherently stiff and can be produced economically.
Inventors
- 👤 Erich Leibhard
- 👤 Andre Luescher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:51
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/14; F16B13/141; F16B13/146
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
46 words
Dowel assembly, for use as an anchor in a structural material such as a light and hollow structural material, comprising an axially extending mesh-like sleeve for receiving a hardenable mass and an anchor member, wherein the improvement comprises that the sleeve is formed of expanded metal.
Claim 2
Dependent Claim
46 words
Dowel assembly, for use as an anchor in a structural material such as a light and hollow structural material, comprising an axially extending mesh-like sleeve for receiving a hardenable mass and an anchor member, wherein the improvement comprises that the sleeve is formed of expanded metal.
Claim 3
Dependent Claim
45 words
Dowel assembly, as set forth in claim 1, wherein, said sleeve has a leading end arranged to be inserted first into a borehole in a receiving material and an opposite trailing end, and the leading end is closed by folds formed in the expanded metal.
Claim 4
Dependent Claim
30 words
Dowel assembly, as set forth in claim 2, wherein stop means are located at the trailing end of the sleeve for limiting the insertion of the sleeve into the borehole.
Claim 5
Dependent Claim
23 words
Dowel assembly, as set forth in claim 3, wherein retaining means are formed on said sleeve for holding the sleeve in the borehole.
Claim 6
Dependent Claim
39 words
Dowel assembly, as set forth in claim 4, wherein said sleeve has an axially extending section extending from the trailing end thereof with said expanded metal being doubled over, and said retaining means being formed in said doubled-over section.
Claim 7
Dependent Claim
20 words
Dowel assembly, as set forth in claim 5, wherein said retaining means comprises tabs punched outwardly from said doubled-over section.
Claim 8
Dependent Claim
24 words
Dowel assembly, as set forth in claim 1, wherein said sleeve is formed of a rolled strip of expanded metal formed from sheet metal.
Claim 9
Dependent Claim
30 words
Dowel assembly, as set forth in claim 7, wherein said rolled expanded metal strip has edges extending in the axial direction of said sleeve with said edges being connected together.
Claim 10
Dependent Claim
26 words
Dowel assembly, as set forth in claim 8, wherein said axially extending edges are folded over in a hook-like form with the hook-like edges in inter-engagement.
Claim 11
Dependent Claim
37 words
Dowel assembly, as set forth in claim 1, wherein said expanded metal has openings therethrough defined by rib-like parts, said rib-like parts defining said openings having an axial length in the range of 0.6 to 3.0 mm.
Claim 12
Dependent Claim
23 words
Dowel assembly, as set forth in claim 10, wherein said rib-like parts have a width in the range of 0.2 to 1.5 mm.
Claim 13
Dependent Claim
101 words
Dowel assembly, for use as an anchor in a structure material such as a light and hollow structural material, comprising an axially extending mesh-like sleeve for receiving a hardenable mass and an anchor member, wherein the improvement comprises that the sleeve is formed of a metal mesh, said sleeve is formed of a rolled strip of metal mesh formed from sheet metal, said rolled metal mesh strip has edges extending in the axial direction of said sleeve with said edges being connected together, and said axially extending edges are folded over in a hook-like form with the hook-like edges in interengagement.
Claim 14
Dependent Claim
101 words
Dowel assembly, for use as an anchor in a structure material such as a light and hollow structural material, comprising an axially extending mesh-like sleeve for receiving a hardenable mass and an anchor member, wherein the improvement comprises that the sleeve is formed of a metal mesh, said sleeve is formed of a rolled strip of metal mesh formed from sheet metal, said rolled metal mesh strip has edges extending in the axial direction of said sleeve with said edges being connected together, and said axially extending edges are folded over in a hook-like form with the hook-like edges in interengagement.
Claim 15
Dependent Claim
39 words
Dowel assembly, as set forth in claim 12, wherein said sleeve has an axially extending section extending from a trailing end thereof with said axially extending section being doubled over, and retaining means being formed in said doubled-over section.
Claim 16
Dependent Claim
21 words
Dowel assembly, as set forth in claim 13, wherein said retaining means comprises tabs punched outwardly from said doubled over section.
References Cited (Backward Citations)
DE955678C
Cited
DE2410772A1
Cited
DE2615316A1
Cited
US4139323A
Cited
SU796449A1
Cited
US4314778A
Cited
US4313696A
Cited
JPS58131228A
Cited
JPS5952023A
Cited
US4787186A
Cited
US4620406A
Cited
US4696606A
Cited
US4773794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-11-05 | 1994-05-07 | 1994-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-05 | 1998-05-07 | 1998-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-05 | 2002-05-07 | 2002-11-06 | $7700.00 | Window Closed / Lapsed |