US4129021A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure device
Assignee: Individual
•
Filing: 1977-06-02
•
Granted: 1978-12-12
•
Expires: 1997-06-02
Abstract
Abstract A key-holder comprising a body having an arcuate passage for an open ring of circular shape. A movable part located in said passage is subjected to a resilient action to be engaged in the open portion of the ring to lock the latter. The body is flat and its main plane substantially coincides with the main plane of the ring.
Inventors
- 👤 Attilio Brentini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:56
CPC Classifications
A; A44; A44B; A44B15/00; E; E05; E05B; E05B67/00; E05B67/06; E05B67/28; Y; Y10; Y10T; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8676; Y10T70/8757
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
127 words
A closure device including, a ring having an opening, a two-part body provided with a seat and including an arcuate passage therewithin, said passage containing a portion of said ring to permit rotary displacement of said ring about its own axis of rotation, a generally V-shaped retainer part of resilient material disposed within said body, one limb of said retainer part disposed within said seat, the other limb of said retainer part including a laterally projecting locking element biased toward said ring and locking said ring against arcuate displacement when disposed within said ring opening, and said other limb including a free actuating end operable exteriorly of said body whereby, manipulation of said free actuating end causes displacement of said locking element from within said ring opening.
Claim 2
Dependent Claim
127 words
A closure device including, a ring having an opening, a two-part body provided with a seat and including an arcuate passage therewithin, said passage containing a portion of said ring to permit rotary displacement of said ring about its own axis of rotation, a generally V-shaped retainer part of resilient material disposed within said body, one limb of said retainer part disposed within said seat, the other limb of said retainer part including a laterally projecting locking element biased toward said ring and locking said ring against arcuate displacement when disposed within said ring opening, and said other limb including a free actuating end operable exteriorly of said body whereby, manipulation of said free actuating end causes displacement of said locking element from within said ring opening.
Claim 3
Dependent Claim
34 words
A device according to claim 1, wherein said arcuate passage comprises a channel formed on one of the parts of the said body and includes a lateral opening affording passage to said locking element.
Claim 4
Dependent Claim
24 words
A device according to claim 1, wherein one of said parts of the body contains said seat within which said retainer part is disposed.
Claim 5
Dependent Claim
39 words
A device according to claim 1, wherein each of the two parts of said body includes a channel forming together said arcuate passsge and each of the two parts of said body additionally includes a portion of said seat.
Claim 6
Dependent Claim
18 words
A device according to claim 1, wherein the ring has a cross-section of generally square or rectangular shape.
Claim 7
Dependent Claim
25 words
A device according to claim 1, wherein the ends of the arcuate passage are separated from each other by an arc of at least 90°.
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) | 1981-12-11 | 1982-06-12 | 1982-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-11 | 1986-06-12 | 1986-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-11 | 1990-06-12 | 1990-12-12 | $7700.00 | Window Closed / Lapsed |