US3372581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamometer
Assignee: Individual
•
Filing: 1966-04-22
•
Granted: 1968-03-12
•
Expires: 1986-04-22
Abstract
No abstract record available.
Inventors
- 👤 Tell Sven Axel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:11
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A DYNAMOMETER COMPRISING A CASING, A DRAWROD LONGITUDINALLY DISPLACEABLE IN THE CASING, SPRING ELEMENTS AGAINST THE ACTION OF WHICH THE DRAWROD IS LONGITUDINALLY DISPLACEABLE, MEANS FOR INDICATING THE FORCE WITH WHICH THE DRAWROD ACTS AGAINST THE SPRING ELEMENTS, THE SPRING ELEMENTS SURROUNDING THE DRAWROD, STOP MEANS ON THE DRAWROD AGAINST WHICH THE SPRING ELEMENTS BEAR IN ONE DIRECTION, MEANS ON THE CASING AGAINST WHICH THE SPRING ELEMENTS BEAR IN THE OPPOSITE DIRECTION, SAID STOP MEANS COMPRISING A PISTON SCREW-THREADEDLY CARRIED BY THE ROD, MEANS FOR LOCKING THE PISTON ON THE ROD IN FIXED POSITION, AND A RING SCREW-THREADEDLY CARRIED BY THE ROD AND DISPOSED BETWEEN THE LOCKED PISTON AND THE SPRING ELEMENTS IN CONTACT WITH THE PISTON, SAID RING PERMITTING THE PISTON TO BE SCREWED INTO SAID POSITION WITHOUT BEING TIGHTENED AND WITHOUT WEAR ON THE THREADS BETWEEN THE PISTON AND THE ROD.
Claim 2
Dependent Claim
143 words
A DYNAMOMETER COMPRISING A CASING, A DRAWROD LONGITUDINALLY DISPLACEABLE IN THE CASING, SPRING ELEMENTS AGAINST THE ACTION OF WHICH THE DRAWROD IS LONGITUDINALLY DISPLACEABLE, MEANS FOR INDICATING THE FORCE WITH WHICH THE DRAWROD ACTS AGAINST THE SPRING ELEMENTS, THE SPRING ELEMENTS SURROUNDING THE DRAWROD, STOP MEANS ON THE DRAWROD AGAINST WHICH THE SPRING ELEMENTS BEAR IN ONE DIRECTION, MEANS ON THE CASING AGAINST WHICH THE SPRING ELEMENTS BEAR IN THE OPPOSITE DIRECTION, SAID STOP MEANS COMPRISING A PISTON SCREW-THREADEDLY CARRIED BY THE ROD, MEANS FOR LOCKING THE PISTON ON THE ROD IN FIXED POSITION, AND A RING SCREW-THREADEDLY CARRIED BY THE ROD AND DISPOSED BETWEEN THE LOCKED PISTON AND THE SPRING ELEMENTS IN CONTACT WITH THE PISTON, SAID RING PERMITTING THE PISTON TO BE SCREWED INTO SAID POSITION WITHOUT BEING TIGHTENED AND WITHOUT WEAR ON THE THREADS BETWEEN THE PISTON AND THE ROD.
References Cited (Backward Citations)
US2673464A
Cited
US2703980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |