US3751951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push-button door lock
Assignee: Individual
•
Filing: 1972-03-10
•
Granted: 1973-08-14
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Expires: 1992-03-10
Abstract
Abstract A lock device consisting primarily of three push-buttons with a projection for resetting the lock, and another button on the inside of the door that serves to release the lock with one punch.
Inventors
- 👤 J Gridley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:49
CPC Classifications
E; E05; E05B; E05B37/00; E05B37/16; E05B37/163; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7153; Y10T70/7311
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
102 words
A push-button lock for mounting on a door comprising, a bolt mounted for longitudinal translation and having a longitudinal slot therein, said bolt being biased to a retracted position, latching means for securing said bolt in an advanced position, a perforated bar disposed within said slot, and push button means operative in a direction transverse to the direction of said bolt translation to selectively engage the perforations in said perforated bar and effect translation of said bar toward said retracted position, said latching means being controlled by said bar to release said bolt when said bar is moved to a preselected position.
Claim 2
Dependent Claim
102 words
A push-button lock for mounting on a door comprising, a bolt mounted for longitudinal translation and having a longitudinal slot therein, said bolt being biased to a retracted position, latching means for securing said bolt in an advanced position, a perforated bar disposed within said slot, and push button means operative in a direction transverse to the direction of said bolt translation to selectively engage the perforations in said perforated bar and effect translation of said bar toward said retracted position, said latching means being controlled by said bar to release said bolt when said bar is moved to a preselected position.
Claim 3
Dependent Claim
58 words
A push-button lock as defined in claim 1, wherein said push button means includes a plurality of manually operable buttons having camming means projecting from the remote end thereof, and the perforations in said bar have camming surfaces selectively disposed for engagement with said camming means when operated in a predetermined sequence, to effect translation of the bar.
Claim 4
Dependent Claim
34 words
A push-button lock as defined in claim 2, wherein said perforated bar includes further camming surfaces engageable by said camming means when operated in other than said predetermined sequence, to laterally displace said bar.
Claim 5
Dependent Claim
30 words
A push-button lock as defined in claim 3, including lever means operative from either side of said door, coupled to said bolt to move said bolt to said advanced position.
Claim 6
Dependent Claim
28 words
A push-button lock as defined in claim 4, wherein said lever means also laterally shifts said bar back to its original position if it has previously been displaced.
Claim 7
Dependent Claim
34 words
A push-button lock as defined in claim 3, including additional push-button means on the inside of said door coupled to said latching means and operative to control said latching means to release said bolt.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |