Patent US3103804A successfully refreshed from Google Patents.
US3103804A
Expired / Lapsed
US
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Lock construction
Assignee: Welch Inc
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Filing: 1962-05-31
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Granted: 1963-09-17
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Expires: 1982-05-31
Abstract
No abstract record available.
Inventors
- 👤 Henry C Wood
- 👤 Victor A Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:39
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/0013; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1075; Y10T292/1076; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5345; Y10T70/5363
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
A DOOR LOCK COMPRISING, A. A HOUSING FOR RECESSION IN THE EDGE OF A DOOR AND HAVING A LONGITUDINAL SLOT IN THE NORMALLY EXPOSED FACE OF THE HOUSING, B. A LOCKING BOLT PIVOTED IN THE HOUSING FOR SWINGING MOVEMENT BETWEEN A RETRACTED POSITION WITHIN THE HOUSING AND A LOCKING POSITION EXTENDING OUTWARD FROM SAID SLOT, C. A SLIDE MEMBER MOUNTED FOR RECIPROCABLE MOVEMENT IN THE HOUSING IN A DIRECTION NORMAL TO THE PIVOT AXIS OF SAID BOLT, D. A LINK MEMBER PIVOTALLY CONNECTED TO THE SLIDE MEMBER AND TO THE LOCKING BOLT WHEREBY THE MOVEMENT OF THE SLIDE MEMBER EFFECTS THE SWINGING OF THE BOLT BETWEEN A RETRACTED POSITION WITHIN THE HOUSING AND AN OUTWARDLY-EXTENDING LOCKING POSITION, E. A ROTATABLE CYLINDER MOUNTED ON THE HOUSING, F. LATCH MEANS ON THE SLIDE MEMBER SPRING-BIASED TO ENGAGE THE HOUSING AND SECURE THE SLIDE MEMBER AT ITS OPPOSITELY-SHIFTED POSITIONS, AND G. A CAM ON THE SAID CYLINDER POSITIONED TO ENGAGE AND RETRACT THE LATCH MEANS UPON ROTATION OF THE CYLINDER AND EFFECT THE OPPOSITE SHIFTING OF THE SLIDE MEMBER TO SWING THE LOCKING BOLT BETWEEN ITS RETRACTED AND EXTENDED POSITIONS.
Claim 2
Dependent Claim
187 words
A DOOR LOCK COMPRISING, A. A HOUSING FOR RECESSION IN THE EDGE OF A DOOR AND HAVING A LONGITUDINAL SLOT IN THE NORMALLY EXPOSED FACE OF THE HOUSING, B. A LOCKING BOLT PIVOTED IN THE HOUSING FOR SWINGING MOVEMENT BETWEEN A RETRACTED POSITION WITHIN THE HOUSING AND A LOCKING POSITION EXTENDING OUTWARD FROM SAID SLOT, C. A SLIDE MEMBER MOUNTED FOR RECIPROCABLE MOVEMENT IN THE HOUSING IN A DIRECTION NORMAL TO THE PIVOT AXIS OF SAID BOLT, D. A LINK MEMBER PIVOTALLY CONNECTED TO THE SLIDE MEMBER AND TO THE LOCKING BOLT WHEREBY THE MOVEMENT OF THE SLIDE MEMBER EFFECTS THE SWINGING OF THE BOLT BETWEEN A RETRACTED POSITION WITHIN THE HOUSING AND AN OUTWARDLY-EXTENDING LOCKING POSITION, E. A ROTATABLE CYLINDER MOUNTED ON THE HOUSING, F. LATCH MEANS ON THE SLIDE MEMBER SPRING-BIASED TO ENGAGE THE HOUSING AND SECURE THE SLIDE MEMBER AT ITS OPPOSITELY-SHIFTED POSITIONS, AND G. A CAM ON THE SAID CYLINDER POSITIONED TO ENGAGE AND RETRACT THE LATCH MEANS UPON ROTATION OF THE CYLINDER AND EFFECT THE OPPOSITE SHIFTING OF THE SLIDE MEMBER TO SWING THE LOCKING BOLT BETWEEN ITS RETRACTED AND EXTENDED POSITIONS.
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) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |