Patent US3926089A successfully refreshed from Google Patents.
US3926089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety pin
Assignee: FRANZ RUBIG AND SOHNE KG
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Filing: 1973-10-16
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Granted: 1975-12-16
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Expires: 1993-10-16
Abstract
Abstract A loop-shaped spring member has mutually opposite ends, which are pivoted to a pin member adjacent to each other near one end of said pin member. The spring member has an intermediate portion which is pivotally movable about said ends of said spring member into and out of engagement with one side of said pin member near the opposite end thereof. Said pin member is formed on one side near said opposite end thereof with a recess which is adapted to receive and releasably hold said intermediate portion of said spring member under initial stress.
Inventors
- 👤 Herbert Ruebig
- 👤 Helmut Ruebig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:02
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/10; F16B21/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
201 words
A safety pin assembly for axles and rotating shafts which comprises a pin member having opposite ends; a loop shaped snap-in spring member of a circular diameter having opposite ends which are pivoted to said pin member adjacent to each other near one end thereof, and an intermediate portion which is pivotally movable about said ends of said spring member into and out of engagement with one side of said pin member near the opposite end thereof, said pin member being formed on one side near said opposite end thereof with a u-shaped recess with an actuate bottom which is adapted to fully receive and releasably hold said intermediate portion of said spring member under initial stress; said recess shaped as an inclined notch with an upper and a lower arm, which extend from the surface of said pin member inwardly forming at the inner end of said notch said recess and a safety catch nose in the outer end of one of said arms inclined toward the outer end of the other said arm; whereby the catch-end of said loop, when in ingagement with said notch is embedded therein and thus protected against disengagement by accidental extraneous impacts againsT it.
Claim 2
Dependent Claim
201 words
A safety pin assembly for axles and rotating shafts which comprises a pin member having opposite ends; a loop shaped snap-in spring member of a circular diameter having opposite ends which are pivoted to said pin member adjacent to each other near one end thereof, and an intermediate portion which is pivotally movable about said ends of said spring member into and out of engagement with one side of said pin member near the opposite end thereof, said pin member being formed on one side near said opposite end thereof with a u-shaped recess with an actuate bottom which is adapted to fully receive and releasably hold said intermediate portion of said spring member under initial stress; said recess shaped as an inclined notch with an upper and a lower arm, which extend from the surface of said pin member inwardly forming at the inner end of said notch said recess and a safety catch nose in the outer end of one of said arms inclined toward the outer end of the other said arm; whereby the catch-end of said loop, when in ingagement with said notch is embedded therein and thus protected against disengagement by accidental extraneous impacts againsT it.
Claim 3
Dependent Claim
173 words
A safety pin assembly for axles and shafts comprising a pin having at one end a loop-bearing means and at its opposite end a notch of u-shaped cross-section with an arcuate bottom; a looped shaped spring of a circular cross-section mounted with the end portions of the loop in said bearing means for a pivotable swinging motion toward said notch in a plane perpendicular to the axis of the pin and having its opposite catch end portion of the loop spaced to engage matingly with said notch; said notch inclined to the axis of said pin to permit swinging engagement of the catch end of said loop therewith; said notch having a nose-catch for said catch-end of said loop; said nose-catch slightly protruding into the swinging path of said loop a distance permitting a releasable snap-in locking of the spring loop under said nose in said notch; whereby the catch-end of said loop, when in engagement with said notch is embedded therein and thus protected against disengagement by accidental extraneous impacts against it.
Claim 4
Dependent Claim
173 words
A safety pin assembly for axles and shafts comprising a pin having at one end a loop-bearing means and at its opposite end a notch of u-shaped cross-section with an arcuate bottom; a looped shaped spring of a circular cross-section mounted with the end portions of the loop in said bearing means for a pivotable swinging motion toward said notch in a plane perpendicular to the axis of the pin and having its opposite catch end portion of the loop spaced to engage matingly with said notch; said notch inclined to the axis of said pin to permit swinging engagement of the catch end of said loop therewith; said notch having a nose-catch for said catch-end of said loop; said nose-catch slightly protruding into the swinging path of said loop a distance permitting a releasable snap-in locking of the spring loop under said nose in said notch; whereby the catch-end of said loop, when in engagement with said notch is embedded therein and thus protected against disengagement by accidental extraneous impacts against it.
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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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |