US3107934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety door bolt
Assignee: LEE FOUNDATION FOR NUTRITIONAL
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Filing: 1960-11-04
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Granted: 1963-10-22
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Expires: 1980-11-04
Abstract
No abstract record available.
Inventors
- 👤 Lee Royal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:18
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/16; E05C19/163; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1028; Y10T292/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
IN A LOCK USE WITH A CLOSURE MEMBER MOVABLE TO OPEN AND CLOSED POSITIONS WITH RESPECT TO A CLOSURE FRAME MEMBER, PERMANENT MAGNET CARRIED BY ONE OF SAID MEMBERS, A LOCKING BOLT MOVABLY CARRIED BY THE OTHER OF SAID MEMBERS AND SHIFTABLE BETWEEN RETRACTED AND PROJECTED POSITIONS, SAID BOLT BEING PROJECTABLE TO LOCKING POSITION WHEN THE CLOSURE MEMBER IS IN CLOSED POSITION, DOGGING MEANS CARRIED BY SAID BOLT-CARRYING MEMBER FOR PREVENTING PROJECTION OF SAID BOLT AND INCLUDING A MOVABLE MAGNETIZABLE DOGGING MEMBER INTERENGAGEABLE WITH SAID BOLT ONLY WHEN SAID BOLT IS IN RETRACTED POSITION AND SAID CLOSURE MEMBER IS IN OPEN POSITION TO RETAIN SAID BOLT AGAINST PROJECTION, SAID DOGGING MEMBER BEING DISPOSED IN THE MAGNETIC FLUX OF SAID PERMANENT MAGNET ONLY WHEN THE CLOSURE MEMBER IS IN CLOSED POSITION AND BEING URGED AND RELEASED BY SAID FLUX OUT OF DOGGING POSITION WITH RESPECT TO SAID BOLT TO PERMIT PROJECTION OF SAID BOLT TO LOCKING POSITION.
Claim 2
Dependent Claim
156 words
IN A LOCK USE WITH A CLOSURE MEMBER MOVABLE TO OPEN AND CLOSED POSITIONS WITH RESPECT TO A CLOSURE FRAME MEMBER, PERMANENT MAGNET CARRIED BY ONE OF SAID MEMBERS, A LOCKING BOLT MOVABLY CARRIED BY THE OTHER OF SAID MEMBERS AND SHIFTABLE BETWEEN RETRACTED AND PROJECTED POSITIONS, SAID BOLT BEING PROJECTABLE TO LOCKING POSITION WHEN THE CLOSURE MEMBER IS IN CLOSED POSITION, DOGGING MEANS CARRIED BY SAID BOLT-CARRYING MEMBER FOR PREVENTING PROJECTION OF SAID BOLT AND INCLUDING A MOVABLE MAGNETIZABLE DOGGING MEMBER INTERENGAGEABLE WITH SAID BOLT ONLY WHEN SAID BOLT IS IN RETRACTED POSITION AND SAID CLOSURE MEMBER IS IN OPEN POSITION TO RETAIN SAID BOLT AGAINST PROJECTION, SAID DOGGING MEMBER BEING DISPOSED IN THE MAGNETIC FLUX OF SAID PERMANENT MAGNET ONLY WHEN THE CLOSURE MEMBER IS IN CLOSED POSITION AND BEING URGED AND RELEASED BY SAID FLUX OUT OF DOGGING POSITION WITH RESPECT TO SAID BOLT TO PERMIT PROJECTION OF SAID BOLT TO LOCKING POSITION.
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) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |