US3177543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety locking device
Assignee: Individual
•
Filing: 1962-11-14
•
Granted: 1965-04-13
•
Expires: 1982-11-14
Abstract
No abstract record available.
Inventors
- 👤 Cecil D Fountain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:48
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/18; E06C7/186; F; F16; F16G; F16G11/00; F16G11/10; F16G11/101; F16G11/105; F16G11/108; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A LOCKING DEVICE SUITABLE FOR USE WITH AN UPWARDLY EXTENDING CABLE FOR PREVENTING THE FALL OF A USER AND PERMITTING FREE MOVEMENT DURING NORMAL ASCENDING AND DESCENDING OF THE USER ALONG THE CABLE THEREOF COMPRISING A HOUSING MEANS HAVING OPENINGS THEREIN FOR RECEIVING SAID CABLE THERETHROUGH, LOCKING MEANS PROVIDED IN SAID HOUSING FOR LOCKING SAID DEVICE TO SAID CABLE, BIASING MEANS PROVIDED IN SAID HOUSING FOR RETAINING SAID LOCKING MEANS IN AN UNLOCKED POSITION, SAID BIASING MEANS HAVING A FORCE SUFFICIENT FOR RETAINING SAID LOCKING MEANS IN THE UNLOCKED POSITION DURING NORMAL ASCENDING AND DESCENDING MOVEMENTS OF SAID USER, MOVABLE ACTUATING MEANS MOUNTED ON SAID DEVICE RESPONSIVE TO A PREDETERM INED MOVEMENT OF SAID USER OF SAID DEVICE FOR MOVING SAID LOCKING MEANS INTO A LOCKING POSITION, AND SAID ACTUATING MEANS HAVING MEANS FOR OPERATIVELY CONNECTING SAID ACTUATING MEANS TO SAID USER.
Claim 2
Dependent Claim
142 words
A LOCKING DEVICE SUITABLE FOR USE WITH AN UPWARDLY EXTENDING CABLE FOR PREVENTING THE FALL OF A USER AND PERMITTING FREE MOVEMENT DURING NORMAL ASCENDING AND DESCENDING OF THE USER ALONG THE CABLE THEREOF COMPRISING A HOUSING MEANS HAVING OPENINGS THEREIN FOR RECEIVING SAID CABLE THERETHROUGH, LOCKING MEANS PROVIDED IN SAID HOUSING FOR LOCKING SAID DEVICE TO SAID CABLE, BIASING MEANS PROVIDED IN SAID HOUSING FOR RETAINING SAID LOCKING MEANS IN AN UNLOCKED POSITION, SAID BIASING MEANS HAVING A FORCE SUFFICIENT FOR RETAINING SAID LOCKING MEANS IN THE UNLOCKED POSITION DURING NORMAL ASCENDING AND DESCENDING MOVEMENTS OF SAID USER, MOVABLE ACTUATING MEANS MOUNTED ON SAID DEVICE RESPONSIVE TO A PREDETERM INED MOVEMENT OF SAID USER OF SAID DEVICE FOR MOVING SAID LOCKING MEANS INTO A LOCKING POSITION, AND SAID ACTUATING MEANS HAVING MEANS FOR OPERATIVELY CONNECTING SAID ACTUATING MEANS TO SAID USER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |