US3101670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-actuated apparatus to control motor speed
Assignee: Individual
•
Filing: 1961-06-08
•
Granted: 1963-08-27
•
Expires: 1981-06-08
Abstract
No abstract record available.
Inventors
- 👤 Harold J Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:40
CPC Classifications
F; F02; F02D; F02D9/00; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0225; F02D2700/0228; F02D2700/023; F02D2700/0235
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
FLUID-ACTUATED APPARATUS TO CONTROL MOTOR SPEED COMPRISING A MOTOR, FLUID PUMPING MEANS CONNECTED TO SAID MOTOR, FLUID FLOW RESPONSIVE VALVE MEANS COMMUNICATING WITH SAID PUMPING MEANS, VACUUM-CREATING MEANS, A FIRST CONDUIT COMMUNICATING WITH SAID VALVE MEANS AND SAID VACUUM-CREATING MEANS, A VACUUM-OPERATED CONTROL MEMBER, A SECOND CONDUIT COMMUNICATING WITH THE LATTER AND WITH SAID VALVE MEANS, GOVERNING MEANS FOR SAID VACUUM-CREATING MEANS, THROTTLE-CONTROL MECHANISM OPERABLY CONNECTED TO SAID MOTOR AND TO SAID GOVERNING MEANS AND OPERABLY CONNECTED TO SAID VACUUM-OPERATED MEMBER WHEREBY SAID MECHANISM IS ADAPTED TO BE ACTUATED BY SAID LATTER MEMBER, A RESTRICTING VALVE CONNECTED TO SAID FIRST CONDUIT ADAPTED TO REGULATE THE DEGREE OF VACUUM IN SAID FIRST CONDUIT, AND A VACUUM BREAKER COMMUNICATING WITH SAID SECOND CONDUIT AND ADAPTED TO INTRODUCE AIR INTO SAID SECOND CONDUIT, SAID VALVE MEANS BEING RESPONSIVE TO THE FLOW OF FLUID FROM SAID PUMPING MEANS WHEREBY THE DEGREE OF VACUUM IN SAID FIRST CONDUIT CAN BE CONTROLLED BY SAID RESTRICTING VALVE.
Claim 2
Dependent Claim
160 words
FLUID-ACTUATED APPARATUS TO CONTROL MOTOR SPEED COMPRISING A MOTOR, FLUID PUMPING MEANS CONNECTED TO SAID MOTOR, FLUID FLOW RESPONSIVE VALVE MEANS COMMUNICATING WITH SAID PUMPING MEANS, VACUUM-CREATING MEANS, A FIRST CONDUIT COMMUNICATING WITH SAID VALVE MEANS AND SAID VACUUM-CREATING MEANS, A VACUUM-OPERATED CONTROL MEMBER, A SECOND CONDUIT COMMUNICATING WITH THE LATTER AND WITH SAID VALVE MEANS, GOVERNING MEANS FOR SAID VACUUM-CREATING MEANS, THROTTLE-CONTROL MECHANISM OPERABLY CONNECTED TO SAID MOTOR AND TO SAID GOVERNING MEANS AND OPERABLY CONNECTED TO SAID VACUUM-OPERATED MEMBER WHEREBY SAID MECHANISM IS ADAPTED TO BE ACTUATED BY SAID LATTER MEMBER, A RESTRICTING VALVE CONNECTED TO SAID FIRST CONDUIT ADAPTED TO REGULATE THE DEGREE OF VACUUM IN SAID FIRST CONDUIT, AND A VACUUM BREAKER COMMUNICATING WITH SAID SECOND CONDUIT AND ADAPTED TO INTRODUCE AIR INTO SAID SECOND CONDUIT, SAID VALVE MEANS BEING RESPONSIVE TO THE FLOW OF FLUID FROM SAID PUMPING MEANS WHEREBY THE DEGREE OF VACUUM IN SAID FIRST CONDUIT CAN BE CONTROLLED BY SAID RESTRICTING VALVE.
References Cited (Backward Citations)
US2634681A
Cited
US2800858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |