Patent US2391034A successfully refreshed from Google Patents.
Patent US4440535A successfully refreshed from Google Patents.
US4440535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet metal fastener
Assignee: Eaton Corp
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Filing: 1981-05-14
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Granted: 1984-04-03
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Expires: 2001-05-14
Abstract
Abstract A sheet metal fastener (100) preferably for self retention to a panel (112) having a slotted aperture (130) therethrough and for receipt of an externally threaded fastener (136) is provided. The fastener defines a first (114) and second (126) thread engaging slot for engagement of externally threaded fasteners at two axially spaced external threads.
Inventors
- 👤 Donald N. Oehlke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:50
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
201 words
A one-piece, self-retaining sheet metal fastener for substantially fixed mounting to a panel having a slotted aperture therethrough and for receiving and retaining a rotationally tightened externally threaded fastener, said sheet metal fastener formed from a strip of sheet metal the thickness of which is less than the pitch distance of the external threads of the externally threaded fastener, said sheet metal fastener comprising generally parallel leg and base portions joined by bight portion for resilient receipt of an edge of the panel therebetween, said base portion being generally flat and defining a first thread engaging elongated slot therethrough, said first slot defined by a pair of substantially parallel substantially straight first edges spaced apart by a distance less than the major diameter of the externally threaded fastener, a pair of arm portions extending upwardly and then inwardly from opposite edges of said base portion, said arm portions terminating at opposed substantially parallel substantially straight second edges spaced apart by a distance less than the major diameter of the external threads of the externally threaded fastener to define a second thread engaging elongated slot therebetween, said second thread engaging slot spaced from and generally aligned with said first thread engaging slot.
Claim 2
Dependent Claim
201 words
A one-piece, self-retaining sheet metal fastener for substantially fixed mounting to a panel having a slotted aperture therethrough and for receiving and retaining a rotationally tightened externally threaded fastener, said sheet metal fastener formed from a strip of sheet metal the thickness of which is less than the pitch distance of the external threads of the externally threaded fastener, said sheet metal fastener comprising generally parallel leg and base portions joined by bight portion for resilient receipt of an edge of the panel therebetween, said base portion being generally flat and defining a first thread engaging elongated slot therethrough, said first slot defined by a pair of substantially parallel substantially straight first edges spaced apart by a distance less than the major diameter of the externally threaded fastener, a pair of arm portions extending upwardly and then inwardly from opposite edges of said base portion, said arm portions terminating at opposed substantially parallel substantially straight second edges spaced apart by a distance less than the major diameter of the external threads of the externally threaded fastener to define a second thread engaging elongated slot therebetween, said second thread engaging slot spaced from and generally aligned with said first thread engaging slot.
Claim 3
Dependent Claim
26 words
The sheet metal fastener of claim 1, wherein said first thread engaging slot is of a length at least twice as great as the width thereof.
Claim 4
Dependent Claim
62 words
The sheet metal fastener of claim 2, wherein said slotted aperture in said panel extends generally transverse to the panel edge received between said leg and base portions, said first thread receiving slot in said base portion extends generally in the direction transverse the bight portion and said arm portions extend from the edges of the base portion transverse the bight portion.
Claim 5
Dependent Claim
63 words
The sheet metal fastener of claim 2, wherein said slotted aperture in said panel extends generally parallel to the panel edge received between said leg and base portions, said first thread receiving slot in said base portion extends generally parallel to the bight portion and said arm portions extend from the edges of the base portion adjacent to and remote the bight portion.
Claim 6
Dependent Claim
155 words
A one-piece, sheet metal nut for threadably receiving and retaining the threads of an externally threaded fastener, said nut formed from a strip of sheet metal having a thickness less than the pitch distance of the external threads of the externally threaded fastener to be received, said nut comprising a generally flat base portion having a first thread engaging elongated slot therein, said first slot defined by a pair of substantially parallel substantially straight first edges spaced apart by a distance less than the major diameter of the externally threaded fastener, and a pair of arm portions extending upwardly and inwardly from opposite edges of said base portion, said arm portions terminating at generally straight, generally parallel opposed second edges spaced apart by a distance less than the major diameter of the externally threaded fastener to define a second thread engaging elongated slot therebetween, said second slot spaced from and aligned with said first slot.
Claim 7
Dependent Claim
155 words
A one-piece, sheet metal nut for threadably receiving and retaining the threads of an externally threaded fastener, said nut formed from a strip of sheet metal having a thickness less than the pitch distance of the external threads of the externally threaded fastener to be received, said nut comprising a generally flat base portion having a first thread engaging elongated slot therein, said first slot defined by a pair of substantially parallel substantially straight first edges spaced apart by a distance less than the major diameter of the externally threaded fastener, and a pair of arm portions extending upwardly and inwardly from opposite edges of said base portion, said arm portions terminating at generally straight, generally parallel opposed second edges spaced apart by a distance less than the major diameter of the externally threaded fastener to define a second thread engaging elongated slot therebetween, said second slot spaced from and aligned with said first slot.
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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) | 1987-04-03 | 1987-10-03 | 1988-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-03 | 1991-10-03 | 1992-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-03 | 1995-10-03 | 1996-04-03 | $7700.00 | Window Closed / Lapsed |