US3137487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety belt for scaffolds
Assignee: Individual
•
Filing: 1963-09-18
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Granted: 1964-06-16
•
Expires: 1983-09-18
Abstract
No abstract record available.
Inventors
- 👤 Lesser Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:47
CPC Classifications
A; A62; A62B; A62B35/00; A62B35/04; E; E04; E04G; E04G21/00; E04G21/32; E04G21/3261; E04G21/3276; E04G5/00; E04G5/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A SAFETY DEVICE COMPRISING A CYLINDRICAL TUBE, A CYLINDRICAL COUNTERWEIGHT SLIDABLY DISPOSED IN THE TUBE, A SHOCK ABSORBING RESILIENT SLEEVE AXIALLY ALIGNED WITH THE COUNTERWEIGHT IN THE TUBE, A FLEXIBLE CABLE SECURED TO THE COUNTERWEIGHT AND PASSING AXIALLY THROUGH THE SLEEVE OUT OF THE TUBE, A TUBULAR FITTIN MOUNTED ON THE UPPER END OF THE TUBE, A COIL SPRING ENGAGED UNDER THE FITTING AT THE UPPER END OF THE TUBE, AN ARM EXTENDING RADIALLY OUTWARD OF THE FITTING, MEANS ON THE ARM FOR ENGAGING A SUPPORT TO MOUNT THE TUBE AXIALLY VERTICAL WITH RESPECT TO SAID SUPPORT, SAID FITTING HAVING A SHOULDER FORMED IN ITS UPPER END, A RING ROTATABLY MOUNTED ON SAID SHOULDER, A FRAMEWORK SECURED TO SAID RING, A PAIR OF PULLEYS ROTATABLY CARRIED BY SAID FRAMEWORK AND
Claim 2
Dependent Claim
130 words
A SAFETY DEVICE COMPRISING A CYLINDRICAL TUBE, A CYLINDRICAL COUNTERWEIGHT SLIDABLY DISPOSED IN THE TUBE, A SHOCK ABSORBING RESILIENT SLEEVE AXIALLY ALIGNED WITH THE COUNTERWEIGHT IN THE TUBE, A FLEXIBLE CABLE SECURED TO THE COUNTERWEIGHT AND PASSING AXIALLY THROUGH THE SLEEVE OUT OF THE TUBE, A TUBULAR FITTIN MOUNTED ON THE UPPER END OF THE TUBE, A COIL SPRING ENGAGED UNDER THE FITTING AT THE UPPER END OF THE TUBE, AN ARM EXTENDING RADIALLY OUTWARD OF THE FITTING, MEANS ON THE ARM FOR ENGAGING A SUPPORT TO MOUNT THE TUBE AXIALLY VERTICAL WITH RESPECT TO SAID SUPPORT, SAID FITTING HAVING A SHOULDER FORMED IN ITS UPPER END, A RING ROTATABLY MOUNTED ON SAID SHOULDER, A FRAMEWORK SECURED TO SAID RING, A PAIR OF PULLEYS ROTATABLY CARRIED BY SAID FRAMEWORK AND
References Cited (Backward Citations)
US2883123A
Cited
US2960739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |