US3739608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary door lock
Assignee: Individual
•
Filing: 1971-08-18
•
Granted: 1973-06-19
•
Expires: 1991-08-18
Abstract
Abstract An auxiliary door lock including a generally cup-shaped door knob cover, a resilient band held along the inner wall surface of the cover, and a locking means connectable adjacent the ends of the band that project from the cover to hold the band in tension in engagement with the door knob shaft behind the door knob. The door knob cover includes a band connecting means for holding one portion of the band against a portion of the inner wall surface opposite the band exit opening.
Inventors
- 👤 H Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:57
CPC Classifications
E; E05; E05B; E05B13/00; E05B13/001; Y; Y10; Y10S; Y10S70/00; Y10S70/58; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5757; Y10T70/5765; Y10T70/70; Y10T70/7441; Y10T70/7915; Y10T70/7955; Y10T70/7977; Y10T70/7983
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
189 words
An auxiliary door lock for a door knob and a portion of said door knob shaft comprising; a generally cup shaped cover having a top to cover the front of a door knob and a side wall to cover the outer rim of the door knob, said cover sized to fit over the door knob and at least a portion of the door knob shaft, and a resilient member moveably connected to said cover, said resilient member normally biased in a first position adjacent the inner wall surface of said cover to allow said cover and said resilient member to be moved over the door knob, said resilient member positionable in a second position inwardly and away from said side wall with at least one portion of said resilient member positioned to engage the rear surface of the door knob to prevent removal of said cover and said resilient member, said resilient member includes an actuating portion projecting out of said cover for actuating said resilient member into said second position, and said actuating portion includes locking means to allow said resilient member to be in said second position.
Claim 2
Dependent Claim
189 words
An auxiliary door lock for a door knob and a portion of said door knob shaft comprising; a generally cup shaped cover having a top to cover the front of a door knob and a side wall to cover the outer rim of the door knob, said cover sized to fit over the door knob and at least a portion of the door knob shaft, and a resilient member moveably connected to said cover, said resilient member normally biased in a first position adjacent the inner wall surface of said cover to allow said cover and said resilient member to be moved over the door knob, said resilient member positionable in a second position inwardly and away from said side wall with at least one portion of said resilient member positioned to engage the rear surface of the door knob to prevent removal of said cover and said resilient member, said resilient member includes an actuating portion projecting out of said cover for actuating said resilient member into said second position, and said actuating portion includes locking means to allow said resilient member to be in said second position.
Claim 3
Dependent Claim
40 words
An auxiliary door lock for a door knob and a portion of said door knob shaft as set forth in claim 1, wherein; said resilient member is a resilient band with a length greater than the perimeter of said top.
Claim 4
Dependent Claim
43 words
An auxiliary door lock for a door knob and a portion of said knob shaft as set forth in claim 2, wherein; said resilient member is generally inflexable when a force is applied in the direction of the width axis of the band.
References Cited (Backward Citations)
US949900A
Cited
US1168394A
Cited
US2134922A
Cited
US2883850A
Cited
US3206955A
Cited
US3556571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |