Patent US6428256B2 successfully refreshed from Google Patents.
US6428256B2
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US
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Attachment element for an anchor rod
Assignee: Hilti AG
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Filing: 2001-03-14
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Granted: 2002-08-06
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Expires: 2021-03-14
Abstract
Abstract An attachment element for an anchor rod ( 14 ) including a substantially cylindrical expansion member ( 1 ) having an axial bore ( 8 ), and one-piece expandable member ( 2 ) extending, at least partially, into the axial bore ( 8 ) of the expansion member ( 1 ) without a possibility of disengagement from the expansion member ( 1 ) and having, at least along a portion of its longitudinal extent, a conical section tapering in a direction opposite to a setting direction (S) of the anchor rod ( 14 ), an axial bore ( 4 ), and at least two elongate slots ( 11 ).
Inventors
- 👤 Jürgen Wieser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:22
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/12; F16B13/124
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
184 words
An attachment element for an anchor rod ( 14 ), comprising a substantially cylindrical expansion member ( 1 ) having an axial bore ( 8 ); and one-piece expandable member ( 2 ) extending, at least partially, into the axial bore ( 8 ) of the expansion member ( 1 ) without a possibility of disengagement from the expansion member ( 1 ) and having, at least along a portion of a longitudinal extent thereof, a conical section tapering in a direction opposite to a setting direction (S) of the anchor rod ( 14 ), an axial bore ( 4 ), and at least two elongate slots ( 11 ), wherein the expandable member ( 2 ) has, in an end region of the elongate slots ( 2 ) facing in a direction opposite the setting direction (S), at least one hinge ( 9 ), wherein the hinge is formed by weakening of material, and wherein the hinge is formed by an inner groove ( 9 ) provided in the wall of the bore ( 4 ) of the expandable member ( 2 ).
Claim 2
Dependent Claim
184 words
An attachment element for an anchor rod ( 14 ), comprising a substantially cylindrical expansion member ( 1 ) having an axial bore ( 8 ); and one-piece expandable member ( 2 ) extending, at least partially, into the axial bore ( 8 ) of the expansion member ( 1 ) without a possibility of disengagement from the expansion member ( 1 ) and having, at least along a portion of a longitudinal extent thereof, a conical section tapering in a direction opposite to a setting direction (S) of the anchor rod ( 14 ), an axial bore ( 4 ), and at least two elongate slots ( 11 ), wherein the expandable member ( 2 ) has, in an end region of the elongate slots ( 2 ) facing in a direction opposite the setting direction (S), at least one hinge ( 9 ), wherein the hinge is formed by weakening of material, and wherein the hinge is formed by an inner groove ( 9 ) provided in the wall of the bore ( 4 ) of the expandable member ( 2 ).
Claim 3
Dependent Claim
27 words
An attachment element according to claim 1 , wherein the bore ( 4 ) of the expandable member ( 2 ) tapers in the setting direction (S).
Claim 4
Dependent Claim
60 words
An attachment element according to claim 1 , wherein the expandable member ( 2 ) has, at an end thereof facing in a direction opposite to the setting direction (S), an opening ( 15 ) a diameter of which at least correspond to an inner diameter of the axial bore ( 8 ) of the expansion member ( 1 ).
Claim 5
Dependent Claim
67 words
An attachment element according to claim 1 , wherein the expandable member ( 2 ) has, on an outer circumference thereof, a shoulder ( 6 ) facing in the setting direction (S) and cooperating with a mating shoulder ( 13 ) provided on the expansion member ( 1 ), whereby disengagement of the expandable member ( 2 ) from the expansion member ( 1 ) is prevented.
Claim 6
Dependent Claim
37 words
An attachment element according to claim 1 , wherein the bore ( 4 ) of the expandable member ( 2 ) has, at least along a portion of a length thereof, a shaped profile ( 5 ).
Claim 7
Dependent Claim
26 words
An attachment element according to claim 1 , wherein both the expansion and expandable member ( 1 , 2 ) are formed of a plastic material.
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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) | 2005-08-05 | 2006-02-04 | 2006-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-08-05 | 2010-02-04 | 2010-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-08-05 | 2014-02-04 | 2014-08-06 | $7700.00 | Window Closed / Lapsed |