US3744099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety pin
Assignee: Individual
•
Filing: 1971-08-02
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Granted: 1973-07-10
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Expires: 1991-08-02
Abstract
Abstract There is disclosed a safety pin having a keeper thereon for captivating the pin in a closed configuration. The keeper is constructed to receive the point through a one-way entry and to release the point through a one-way exit. Means are provided to cam the pin laterally following its passage through the one-way exit.
Inventors
- 👤 H Mccoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:49
CPC Classifications
A; A44; A44B; A44B9/00; A44B9/12; A44B9/14; Y; Y10; Y10T; Y10T24/00; Y10T24/46; Y10T24/4604; Y10T24/4634; Y10T24/4652
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
171 words
A safety pin comprising a base, a pin, means mounting the pin for self-biased movement away from the base toward an open position and for externally biased movement toward the base toward a closed position, and a keeper connected to the base for releasably securing the pin in the closed position, the keeper comprising means defining a path of externally biased pin movement through the keeper including a one-way entrance, a pin retaining chamber in pin receiving relation to the entrance, and a oneway exit from the chamber, the one-way entrance and the one-way exit being aligned in the path of externally biased pin movement; an abutment, in the pin retaining chamber, between the entrance and exit for blocking externally biased pin movement directly from the entrance to the exit; means adjacent the exit affording a limit of externally biased pin movement toward the base; and means adjacent the limit means for laterally deflecting the pin out of the path of externally biased movement for self-biased movement toward the open position.
Claim 2
Dependent Claim
171 words
A safety pin comprising a base, a pin, means mounting the pin for self-biased movement away from the base toward an open position and for externally biased movement toward the base toward a closed position, and a keeper connected to the base for releasably securing the pin in the closed position, the keeper comprising means defining a path of externally biased pin movement through the keeper including a one-way entrance, a pin retaining chamber in pin receiving relation to the entrance, and a oneway exit from the chamber, the one-way entrance and the one-way exit being aligned in the path of externally biased pin movement; an abutment, in the pin retaining chamber, between the entrance and exit for blocking externally biased pin movement directly from the entrance to the exit; means adjacent the exit affording a limit of externally biased pin movement toward the base; and means adjacent the limit means for laterally deflecting the pin out of the path of externally biased movement for self-biased movement toward the open position.
Claim 3
Dependent Claim
24 words
The safety pin of claim 1 wherein the one-way exit comprises a resilient means diverging toward the chamber and defining therebetween an exit slot.
Claim 4
Dependent Claim
29 words
The safety pin of claim 2 wherein the resilient means comprises an abutment and a resilient lip biased theretoward and openable upon movement of the pin toward the base.
Claim 5
Dependent Claim
27 words
The safety pin of claim 2 wherein the resilient means comprises a pair of lips biased together and openable upon movement of the pin toward the base.
Claim 6
Dependent Claim
10 words
The safety pin of claim 4 wherein the lips overlap.
Claim 7
Dependent Claim
38 words
The safety pin of claim 1 wherein the path defining means comprises a pair of walls having exterior surfaces diverging away from the base from adjacent the limit means, the diverging external surfaces comprising the lateral deflecting means.
Claim 8
Dependent Claim
22 words
The safety pin of claim 6 wherein the internal surfaces of the walls, adjacent the one-way exit, diverge away from the base.
Claim 9
Dependent Claim
47 words
The safety pin of claim 1 wherein the path defining means includes a channel, between the pin retaining chamber and the one-way exit, of smaller cross-section than the pin; the channel being partially defined by a resilient wall deflectable by passage of the pin through the channel.
Claim 10
Dependent Claim
38 words
The safety pin of claim 8 wherein the path defining means includes the resilient wall having an exterior surface inclined away from the base from adjacent the resilient means, the inclined exterior surface comprising the lateral deflecting means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |