US4071927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded safety pin
Assignee: Individual
•
Filing: 1976-08-27
•
Granted: 1978-02-07
•
Expires: 1996-08-27
Abstract
Abstract Safety pin comprising an integrated molded unit having an elongated plastic base with a flexible and resilient extension at each end thereof, a pin secured to one extension, the other extension being reversely bowed toward the base to form a detent for the piercing end of the pin, and pin guiding structure integral with and extending from opposite sides of the molded base so as to arch over the detent. In another form of the invention, the molded unit has a resilient metal strip of U-shape (in lieu of a molded extension) that is locked to the base to form the detent.
Inventors
- 👤 Dante V. Bagnasco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:31
CPC Classifications
A; A44; A44B; A44B9/00; A44B9/12; A44B9/125; Y; Y10; Y10T; Y10T24/00; Y10T24/46; Y10T24/4604; Y10T24/4634; Y10T24/4648; Y10T24/4664; Y10T24/4668; Y10T24/467
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
135 words
A safety pin of the character described comprising an elongated strip-like molded base member composed of resilient plastic material having sufficient thickness to provide a comparatively rigid base, said base member at one end merging into a comparatively thin web-like flexible extension tapered in width toward the outer end thereof, a pin extending longitudinally from the tapered end of said extension so that it can be readily biased back over the base member, and a detent extending in a reverse loop from the opposite end of said base member for retaining said pin in closed position when it is moved beneath the detent, said base member also including as a molded part thereof wing-like pin guiding structure extending transversely from the base at opposite sides of the detent to partly enclose and overlie said detent.
Claim 2
Dependent Claim
135 words
A safety pin of the character described comprising an elongated strip-like molded base member composed of resilient plastic material having sufficient thickness to provide a comparatively rigid base, said base member at one end merging into a comparatively thin web-like flexible extension tapered in width toward the outer end thereof, a pin extending longitudinally from the tapered end of said extension so that it can be readily biased back over the base member, and a detent extending in a reverse loop from the opposite end of said base member for retaining said pin in closed position when it is moved beneath the detent, said base member also including as a molded part thereof wing-like pin guiding structure extending transversely from the base at opposite sides of the detent to partly enclose and overlie said detent.
Claim 3
Dependent Claim
28 words
A safety pin as specified in claim 1 wherein the detent comprises an integral web-like flexible and resilient extension of the opposite end of the molded base member.
Claim 4
Dependent Claim
51 words
A safety pin as specified in claim 2 wherein the base member, together with the flexible end extensions and pin guiding structure form an all-plastic integrated molded unit composed of a plastic characteristic of a reinforced formulation of polypropylene and and a metal pin is anchored in the tapered flexible extension.
Claim 5
Dependent Claim
50 words
A safety pin as specified in claim 1 wherein the detent comprises a separate resilient member of generally U-shape, one arm of the "U" being secured to the plastic base member and the other arm normally biased to engage the overhanging pin guide structure and constituting the pin restraining portion.
Claim 6
Dependent Claim
40 words
A safety pin as specified in claim 4 wherein the base member is slotted to receive the secured arm of the "U", and the base and said arm have interlocking parts for permanently securing the detent to the base member.
References Cited (Backward Citations)
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US1983186A
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US2227676A
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US2760247A
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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) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |