US3208565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic gear wheel motor with a brake operated on interruption of the air supply
Assignee: G Duesterloh Fabrik fuer Bergwerksbedarf GmbH
•
Filing: 1962-07-16
•
Granted: 1965-09-28
•
Expires: 1982-07-16
Abstract
No abstract record available.
Inventors
- 👤 Heckt Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:30
CPC Classifications
F; F01; F01C; F01C21/00; F16; F16D; F16D55/00; F16D55/24; F16D55/26; F16H; F16H39/00; F16H39/04; F16H39/06; F16H39/34; F16D65/00; F16D65/02; F16D2065/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A PRESSURE FLUID ACTUATED MOTOR HAVING A HOUSING; AT LEAST ONE PRESSURE FLUID DRIVEN ROTOR MOUNTED FOR ROTATION ABOUT AN AXIS WITHIN SAID HOUSING, SAID ROTOR HAVING OF THE INTERIOR THEREOF AND BEING COAXIAL PORTION OF THE INTERIOR THEREOF AND BEING COAXIAL THEREWITH; A PRESSURE FLUID INLET IN SAID HOSSING PROVIDING COMMUNICATION WITH A REMOTE SOURCE OF PRESSURE FLUID; A BRAKE MEMBER DISPOSED WITHIN THE CAVITY OF SAID ROTOR, SAID BRAKE MEMBER MOUNTED FOR AXIAL SHIFTING MOVEMENT INTO AND OUT OF ENGAGEMENT WITH THE BRAKING SURFACE OF THE CAVITY OF SAID ROTOR; SPRING MEANS DISPOSED WITHIN THE CAVITY OF SAID ROTOR NORMALLY BIASING SAID BRAKE MEMBER INTO ENGAGEMENT WITH THE BRAKING SURFACE OF THE CAVITY OF SAID ROTOR; AND VALVING MEANS FOR PROVIDING COMMUNICATION BETWEEN THE REMOTE SOURCE OF PRESSURE FLUID AND SAID BRAKE MEMBER AND SAID ROTOR FOR AXIALLY SHIFTING SAID BRAKE MEMBER AGAINST THE BIAS OF SAID SPRING MEANS OUT OF ENGAGEMENT WITH THE BRAKING SURFACE OF THE CAVITY OF SAID ROTOR AND SIMULTANEOUSLY DRIVING SAID ROTOR.
Claim 2
Dependent Claim
169 words
A PRESSURE FLUID ACTUATED MOTOR HAVING A HOUSING; AT LEAST ONE PRESSURE FLUID DRIVEN ROTOR MOUNTED FOR ROTATION ABOUT AN AXIS WITHIN SAID HOUSING, SAID ROTOR HAVING OF THE INTERIOR THEREOF AND BEING COAXIAL PORTION OF THE INTERIOR THEREOF AND BEING COAXIAL THEREWITH; A PRESSURE FLUID INLET IN SAID HOSSING PROVIDING COMMUNICATION WITH A REMOTE SOURCE OF PRESSURE FLUID; A BRAKE MEMBER DISPOSED WITHIN THE CAVITY OF SAID ROTOR, SAID BRAKE MEMBER MOUNTED FOR AXIAL SHIFTING MOVEMENT INTO AND OUT OF ENGAGEMENT WITH THE BRAKING SURFACE OF THE CAVITY OF SAID ROTOR; SPRING MEANS DISPOSED WITHIN THE CAVITY OF SAID ROTOR NORMALLY BIASING SAID BRAKE MEMBER INTO ENGAGEMENT WITH THE BRAKING SURFACE OF THE CAVITY OF SAID ROTOR; AND VALVING MEANS FOR PROVIDING COMMUNICATION BETWEEN THE REMOTE SOURCE OF PRESSURE FLUID AND SAID BRAKE MEMBER AND SAID ROTOR FOR AXIALLY SHIFTING SAID BRAKE MEMBER AGAINST THE BIAS OF SAID SPRING MEANS OUT OF ENGAGEMENT WITH THE BRAKING SURFACE OF THE CAVITY OF SAID ROTOR AND SIMULTANEOUSLY DRIVING SAID ROTOR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |