Patent US4502193A successfully refreshed from Google Patents.
US4502193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stand-off fastener
Assignee: Hartwell Corp
•
Filing: 1981-12-14
•
Granted: 1985-03-05
•
Expires: 2001-12-14
Abstract
Abstract A fastener for locking two objects in a predetermined relationship. The fastener has a fastener body including a spacer which defines a predetermined distance between the two objects. A first locking element is on one side of the spacer and a second locking element is on the other side of the spacer. The fastener body is adapted to receive a plunger which is adapted to travel from a retracted position to a secured position. The plunger causes the first and second locking elements to rigidly affix the objects to the fastener body thus holding the objects a predetermined distance from each other.
Inventors
- 👤 Raymond E. Harmon
- 👤 Lloyd R. Poe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:35
CPC Classifications
F; F16; F16B; F16B19/00; F16B19/04; F16B19/08; F16B19/10; F16B19/1027; F16B19/1036; F16B19/1081; H; H05; H05K; H05K7/00; H05K7/14; H05K7/1417; H05K7/142; Y; Y10; Y10T; Y10T24/00; Y10T24/30; Y10T24/309; Y10T24/45; Y10T24/45225; Y10T24/45471; Y10T24/45482; Y10T24/45524; Y10T24/45545; Y10T24/4555; Y10T24/45555; Y10T24/4556
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
146 words
A fastener for joining a first member at a first aperture therethrough in a fixed relationship to a second member at a second aperture therethrough, comprising a fastener body including a spacer, a first locking element on one side of said spacer, a second locking element on the other side of said spacer and a channel extending through said spacer, said first locking element and said second locking element, said first locking element having first movable tabs extending outwardly from said body at a distance from said spacer, said second locking element having second movable tabs defining a split body portion; and a plunger slidably extending into said channel, said plunger extending from said second locking element and being no larger than said split body portion in cross section, said plunger and said channel including surfaces for moving said tabs outwardly with advancement of said plunger.
Claim 2
Dependent Claim
146 words
A fastener for joining a first member at a first aperture therethrough in a fixed relationship to a second member at a second aperture therethrough, comprising a fastener body including a spacer, a first locking element on one side of said spacer, a second locking element on the other side of said spacer and a channel extending through said spacer, said first locking element and said second locking element, said first locking element having first movable tabs extending outwardly from said body at a distance from said spacer, said second locking element having second movable tabs defining a split body portion; and a plunger slidably extending into said channel, said plunger extending from said second locking element and being no larger than said split body portion in cross section, said plunger and said channel including surfaces for moving said tabs outwardly with advancement of said plunger.
Claim 3
Dependent Claim
24 words
The fastener of claim 1 wherein said first movable tabs are constructed and arranged to move toward said spacer upon advancement of said plunger.
Claim 4
Dependent Claim
22 words
The fastener of claim 1 wherein said second movable tabs are constructed and arranged to extend outwardly upon advancement of said plunger.
Claim 5
Dependent Claim
27 words
The fastener of claim 1 wherein said channel and said plunger include stop means for limiting movement of said plunger to prevent extraction from said fastener body.
Claim 6
Dependent Claim
19 words
The fastener of claim 1 wherein said first tabs extend both outwardly and toward said spacer to resist extraction.
Claim 7
Dependent Claim
20 words
The fastener of claim 1 wherein said surfaces include inclined surfaces wedging said tabs outwardly with advancement of said plunger.
Claim 8
Dependent Claim
180 words
A fastener for joining a first member at a first aperture therethrough in a fixed relationship to a second member at a second aperture therethrough, comprising a fastener body including a spacer, a first locking element on one side of said spacer, a second locking element on the other side of said spacer and a channel extending through said spacer, said first locking element and said second locking element, said first locking element having first movable tabs extending outwardly from said body at a distance from said spacer, said second locking element having second movable tabs defining a split body portion; and a plunger slidably extending into said channel, said plunger extending from said second locking element and being no larger than said split body portion in cross section, said plunger and said channel including surfaces for moving said tabs outwardly with advancement of said plunger, said first movable tabs being constructed and arranged to move toward said spacer upon advancement of said plunger, said second movable tabs being constructed and arranged to extend outwardly upon advancement of said plunger.
Claim 9
Dependent Claim
180 words
A fastener for joining a first member at a first aperture therethrough in a fixed relationship to a second member at a second aperture therethrough, comprising a fastener body including a spacer, a first locking element on one side of said spacer, a second locking element on the other side of said spacer and a channel extending through said spacer, said first locking element and said second locking element, said first locking element having first movable tabs extending outwardly from said body at a distance from said spacer, said second locking element having second movable tabs defining a split body portion; and a plunger slidably extending into said channel, said plunger extending from said second locking element and being no larger than said split body portion in cross section, said plunger and said channel including surfaces for moving said tabs outwardly with advancement of said plunger, said first movable tabs being constructed and arranged to move toward said spacer upon advancement of said plunger, said second movable tabs being constructed and arranged to extend outwardly upon advancement of said plunger.
Claim 10
Dependent Claim
208 words
A fastener for joining a first member at a first aperture therethrough in a fixed relationship to a second member at a second aperture therethrough, the first aperture having a preselected length and cross section, comprising a fastener body including a spacer, a first locking element on one side of said spacer, a second locking element on the other side of said spacer and a channel extending through said spacer, said first locking element and said second locking element, said first locking element having first movable tabs including a first split body portion extending from said spacer and being smaller in cross section than the preselected cross section and ribs extending outwardly and toward said spacer, said ribs extending to a periphery larger than said preselected cross section, said second locking element having second movable tabs defining a second split body portion; and a plunger slidably extending into said channel, said plunger extending from said second locking element and being no larger than said second split body portion in cross section, said plunger and said channel including surfaces for moving said first tabs outwardly and toward said spacer with advancement of said plunger and further including surfaces for moving said second tabs outwardly with advancement of said plunger.
Claim 11
Dependent Claim
208 words
A fastener for joining a first member at a first aperture therethrough in a fixed relationship to a second member at a second aperture therethrough, the first aperture having a preselected length and cross section, comprising a fastener body including a spacer, a first locking element on one side of said spacer, a second locking element on the other side of said spacer and a channel extending through said spacer, said first locking element and said second locking element, said first locking element having first movable tabs including a first split body portion extending from said spacer and being smaller in cross section than the preselected cross section and ribs extending outwardly and toward said spacer, said ribs extending to a periphery larger than said preselected cross section, said second locking element having second movable tabs defining a second split body portion; and a plunger slidably extending into said channel, said plunger extending from said second locking element and being no larger than said second split body portion in cross section, said plunger and said channel including surfaces for moving said first tabs outwardly and toward said spacer with advancement of said plunger and further including surfaces for moving said second tabs outwardly with advancement of said plunger.
References Cited (Backward Citations)
GB542759A
Cited
US2767877A
Cited
GB1129250A
Cited
GB1147914A
Cited
GB1301516A
Cited
US3568263A
Cited
US3697104A
Cited
US3764729A
Cited
US3811154A
Cited
US3852849A
Cited
US3918130A
Cited
US4007516A
Cited
US4114509A
Cited
US4276806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-04 | 1988-09-03 | 1989-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-04 | 1992-09-03 | 1993-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-04 | 1996-09-03 | 1997-03-05 | $7700.00 | Window Closed / Lapsed |