US3090643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch
Assignee: Individual
•
Filing: 1960-12-20
•
Granted: 1963-05-21
•
Expires: 1980-12-20
Abstract
No abstract record available.
Inventors
- 👤 Sr Harry T Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:53
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/08; E05C1/12; E05C1/14; E05B; E05B63/00; E05B63/04; E05B63/044; Y; Y10; Y10S; Y10S292/00; Y10S292/37; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0976; Y10T292/1097
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
243 words
A PUSH BUTTON LATCH COMPRISING A HOUSING HAVING FRONT, BACK, TOP AND SIDE WALLS, THE FRONT AND BACK WALLS OF SAID HOUSING HAVING ALINGED OPENINGS WITH THE OPENING IN THE FRONT WALL BEING LARGER THAN THE ONE IN THE BACK WALL, A LATCH BOLT POSITIONED WITHIN SAID HOUSING FOR SLIDABLE MOVEMENT THEREIN, SAID LATCH BOLT COMPRISING A CASING HAVING BACK AND SIDE WALLS AND A RECTANGULARLY SHAPED TONGUE MEMBER SECURED BETWEEN THE BACK AND SIDE WALLS OF SAID LATCH BOLT CASING AND ARRANGED TO PROJECT THEREFROM, A LEDGE PROVIDED IN SAID LATCH BOLT CASING AND SECURED TO THE WALLS THEREOF, COIL SPRING INTERPOSED BETWEEN SAID LEDGE AND THE TOP WALL OF SAID HOUSING, THE BACK WALL OF SAID LATCH BOLT CASING HAVING AN OPENING THEREIN REGISTRABLE WITH THE OPENING IN THE BACK WALL OF SAID HOUSING, AN OPERATING PLUNGER ENGAGEABLE WITH SAID LATCH BOLT, SAID PLUNGER EMBODYING A MEMBER HAVING SPACED CAM SURFACES THERON EACH OF WHICH TERMINATE IN A REDUCED END PORTION, EACH OF SAID CAM SURFACES ENGAGING SAID LEDGE AT SPACED POINTS FOR COMPRESSING SAID SPRING BETWEEN SAID LEDGE AND TOP OF SAID HOUSING WITH THE PRESSURE BEING UNIFORMLY DISTRIBUTED OVER SAID LEDGE BY SAID CAM SURFACES CONTEMPORANEOUS WITH THE RETRACTION OF SAID LATCH BOLT WITHIN SAID HOUSING, THE REDUCED END PORTION OF SAID PLUNGER MOVING THROUGH THE OPENING IN THE BACK WALL OF SAID HOUSING TO RETAIN SAID CAM SURFACES IN PROPER ENGAGEMENT WITH SAID LEDGE FOR COMPRESSING SAID SPRING.
Claim 2
Dependent Claim
243 words
A PUSH BUTTON LATCH COMPRISING A HOUSING HAVING FRONT, BACK, TOP AND SIDE WALLS, THE FRONT AND BACK WALLS OF SAID HOUSING HAVING ALINGED OPENINGS WITH THE OPENING IN THE FRONT WALL BEING LARGER THAN THE ONE IN THE BACK WALL, A LATCH BOLT POSITIONED WITHIN SAID HOUSING FOR SLIDABLE MOVEMENT THEREIN, SAID LATCH BOLT COMPRISING A CASING HAVING BACK AND SIDE WALLS AND A RECTANGULARLY SHAPED TONGUE MEMBER SECURED BETWEEN THE BACK AND SIDE WALLS OF SAID LATCH BOLT CASING AND ARRANGED TO PROJECT THEREFROM, A LEDGE PROVIDED IN SAID LATCH BOLT CASING AND SECURED TO THE WALLS THEREOF, COIL SPRING INTERPOSED BETWEEN SAID LEDGE AND THE TOP WALL OF SAID HOUSING, THE BACK WALL OF SAID LATCH BOLT CASING HAVING AN OPENING THEREIN REGISTRABLE WITH THE OPENING IN THE BACK WALL OF SAID HOUSING, AN OPERATING PLUNGER ENGAGEABLE WITH SAID LATCH BOLT, SAID PLUNGER EMBODYING A MEMBER HAVING SPACED CAM SURFACES THERON EACH OF WHICH TERMINATE IN A REDUCED END PORTION, EACH OF SAID CAM SURFACES ENGAGING SAID LEDGE AT SPACED POINTS FOR COMPRESSING SAID SPRING BETWEEN SAID LEDGE AND TOP OF SAID HOUSING WITH THE PRESSURE BEING UNIFORMLY DISTRIBUTED OVER SAID LEDGE BY SAID CAM SURFACES CONTEMPORANEOUS WITH THE RETRACTION OF SAID LATCH BOLT WITHIN SAID HOUSING, THE REDUCED END PORTION OF SAID PLUNGER MOVING THROUGH THE OPENING IN THE BACK WALL OF SAID HOUSING TO RETAIN SAID CAM SURFACES IN PROPER ENGAGEMENT WITH SAID LEDGE FOR COMPRESSING SAID SPRING.
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |