US3193243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve safety clutch mechanism
Assignee: Bastian Blessing Co
•
Filing: 1962-07-05
•
Granted: 1965-07-06
•
Expires: 1982-07-05
Abstract
No abstract record available.
Inventors
- 👤 Evans R Billington
- 👤 Savin L Sundstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:08
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; F16K31/047; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20762
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
IN COMBINATION WITH A FLUID FLOW VALVE BODY HAVING A ROTATABLE VALVE STEM MOUNTED THEREON, A SAFETY CLUTCH MECHANISM COMPRISING: AN OPERATING HANDLE SLIDABLY SECURED TO THE UPPER END OF THE VALVE STEM PROVIDING A PLURALITY OF EQUALLY SPACED BUTTRESS TEETH ON THE UNDER SURFACE THEREOF, A CYLINDRICAL SLEEVE SLIDABLY RETAINED ON SAID VALVE BODY HAVING A PLURALITY OF EQUALLY SPACED BUTTRESS TEETH ON THE UPPER EDGE THEREOF, MEANS SUPPORTED ON SAID BODY TO RESTRICT SAID SLEEVE AGAINST ROTATION, AND A COMPRESSION SPRING DISPOSED BETWEEN SAID VALVE STEM AND SAID HANDLE TO EFFECT ENGAGEMENT OF THE TEETH ON THE SLEEVE WITH THE TEETH ON THE HANDLE TO PREVENT ROTATION OF THE HANDLE IN ONE DIRECTION.
References Cited (Backward Citations)
GB527132A
Cited
US3054303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |