Patent US4630983A successfully refreshed from Google Patents.
US4630983A
Expired / Lapsed
US
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Expansion pin
Assignee: Fischerwerke Artur Fischer GmbH and Co KG
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Filing: 1984-12-06
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Granted: 1986-12-23
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Expires: 2004-12-06
Abstract
Abstract The disclosure relates to an expansion pin consisting of a shank which at one end is provided with means for securing articles and at the other end is provided with a point. In order to obtain an anchoring having further expansion effect, the shank has an aperture in the form of a slot in which there is inserted a plastically and/or resiliently deformable insert which thickens the shank of the expansion pin in the region of the slot.
Inventors
- 👤 Artur Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:04
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/04; F16B13/08; F16B19/00; F16B19/002
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
88 words
An expansion pin for securing articles to a support structure, comprising: a shank having an apertured region, two ends, an outer surface, and an expandable portion at one end; means for securing the articles by the expansion pin at said other end of said shank; and a deformable expansion element oriented in said apertured region so as to thicken said shank, said expansion element having a length and having guide ribs at least over a part of said length that rest against said outer surface of said shank.
Claim 2
Dependent Claim
88 words
An expansion pin for securing articles to a support structure, comprising: a shank having an apertured region, two ends, an outer surface, and an expandable portion at one end; means for securing the articles by the expansion pin at said other end of said shank; and a deformable expansion element oriented in said apertured region so as to thicken said shank, said expansion element having a length and having guide ribs at least over a part of said length that rest against said outer surface of said shank.
Claim 3
Dependent Claim
21 words
An expansion pin as defined in claim 1, wherein said apertured region has an aperture in the form of a slot.
Claim 4
Dependent Claim
17 words
An expansion pin as defined in claim 1, wherein said expansion element is a plastically deformable insert.
Claim 5
Dependent Claim
16 words
An expansion pin as defined in claim 1, wherein said expansion element is resiliently deformable insert.
Claim 6
Dependent Claim
29 words
An expansion pin as defined in claim 2, wherein said slot is provided with tapering end regions, and the expansion element is matched to the shape of the slot.
Claim 7
Dependent Claim
21 words
An expansion pin as defined in claim 1, wherein said expansion element is made of plastic and has an elliptical cross-section.
Claim 8
Dependent Claim
21 words
An expansion pin as defined in claim 4, wherein said insert is made of spring sheet metal having a corrugated construction.
Claim 9
Dependent Claim
100 words
An expansion pin for securing articles to a support structure, comprising: a shank having an apertured region, two ends, and an expandable portion at one end; means for securing the articles by the expansion pin at said other end; and a deformable expansion element having two longitudinal sides and oriented in said apertured region so as to thicken said shank, said apertured region having an aperture formed as a slot having a V-shaped longitudinal enlargement at each side, and a portion of each of said longitudinal sides of said expansion element being of enlarged cross-section matched to said longitudinal enlargements.
Claim 10
Dependent Claim
100 words
An expansion pin for securing articles to a support structure, comprising: a shank having an apertured region, two ends, and an expandable portion at one end; means for securing the articles by the expansion pin at said other end; and a deformable expansion element having two longitudinal sides and oriented in said apertured region so as to thicken said shank, said apertured region having an aperture formed as a slot having a V-shaped longitudinal enlargement at each side, and a portion of each of said longitudinal sides of said expansion element being of enlarged cross-section matched to said longitudinal enlargements.
Claim 11
Dependent Claim
47 words
An expansion pin as defined in claim 1, wherein said expansion element is elongated, has an upper and a lower side, and is provided on said upper side and said lower side with a plurality of rib-like projections transverse to the longitudinal direction of said expansion element.
Claim 12
Dependent Claim
26 words
An expansion pin as defined in claim 2, wherein said slot is defined by limbs having an inner surface arranged with a plurality of transverse grooves.
Claim 13
Dependent Claim
35 words
An expansion pin as defined in claim 8 wherein said two V-shaped longitudinal enlargements are extended beyond the end of said slot in the direction towards said securing means by means of a funneled portion.
References Cited (Backward Citations)
FR624378A
Cited
FR828535A
Cited
FR857018A
Cited
US2271495A
Cited
CH220574A
Cited
US3080787A
Cited
DE1087655B
Cited
US3315558A
Cited
FR1431842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-22 | 1990-06-23 | 1990-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-22 | 1994-06-23 | 1994-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-22 | 1998-06-23 | 1998-12-23 | $7700.00 | Window Closed / Lapsed |