US3562734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stop motion device
Assignee: Certainteed LLC
•
Filing: 1967-10-20
•
Granted: 1971-02-09
•
Expires: 1987-10-20
Abstract
Abstract A DEVICE FOR DETECTING AND INDICATING A BROKEN STRAND CONDITION DURING THE FORMING OF GLASS FIBER ROVING. THE DEVICE UTILIZES A COMBINATION STYLUS AND CRYSTAL CARTRIDGE TO PRODUCE AN ELECTRICAL SIGNAL IN ACCORDANCE WITH MOVEMENT OF A GLASS FIBER STRAND RELATIVE TO THE STYLUS. THIS SIGNAL, WHEN SUITABLY AMPLIFED, IS USABLE TO MAINTAIN AN ELECTRICAL RELAY IN A PRESCRIBED CONDITION. THE ABSENCE OR LACK OF STRAND MOVEMENT PRODUCES A NO VOLTAGE CONDITION AT THE CRYSTAL CARTRIDGE, THEREBY CAUSING THE RELAY TO ACTUATE A WARNING DEVICE AND/OR STOP THE FORMING OPERATION.
Inventors
- 👤 George H Hotchkiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:46
CPC Classifications
B; B65; B65H; B65H63/00; B65H63/02; B65H63/024; B65H63/028; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |