US3191503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor assembly for fluid-handling device
Assignee: Thor Power Tool Co
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Filing: 1963-12-05
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Granted: 1965-06-29
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Expires: 1983-12-05
Abstract
No abstract record available.
Inventors
- 👤 George H Fuehrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:59
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/30; F01C1/34; F01C1/344; F01C1/3441; F01C1/3442; F01C21/00; F01C21/08; F01C21/0809; F01C21/0818; F01C21/0827; F01C21/0845
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A ROTARY FLUID-HANDLING DEVICE COMPRISING, A MAIN HOUSING HAVING A CYLINDRICAL CHAMBER PROVIDED WITH INLET AND OUTLET PASSAGES, A ROTOR JOURNALLED ECCENTRICALLY OF THE LONGITUDINAL AXIS OF SAID CHAMBER, SAID ROTOR HAVING AT LEAST ONE RADIAL SLOT OPENING THROUGH ITS PERIPHERY, VANE MEANS HAVING A CLOSE SLIDING FIT WITH SAID SLOT AND ITS OUTER PERIMETER EDGE BEING ADAPTED TO FORM A SLIDING FIT WITH THE JUXTAPOSED SURFACES OF SAID CYLINDRICAL CHAMBER, AND AN ENDLESS LOOP OF RESILIENT NON-METALLIC MATERIAL INTERPOSED BETWEEN THE BOTTOM EDGE OF SAID SLOT AND THE INNER EDGE OF SAID VANE MEANS EFFECTIVE TO URGE THE LATTER OUTWARDLY INTO LIGHT PRESSURE ENGAGEMENT WITH THE PERIPHERY OF SAID CYLINDRICAL CHAMBER.
Claim 2
Dependent Claim
112 words
A ROTARY FLUID-HANDLING DEVICE COMPRISING, A MAIN HOUSING HAVING A CYLINDRICAL CHAMBER PROVIDED WITH INLET AND OUTLET PASSAGES, A ROTOR JOURNALLED ECCENTRICALLY OF THE LONGITUDINAL AXIS OF SAID CHAMBER, SAID ROTOR HAVING AT LEAST ONE RADIAL SLOT OPENING THROUGH ITS PERIPHERY, VANE MEANS HAVING A CLOSE SLIDING FIT WITH SAID SLOT AND ITS OUTER PERIMETER EDGE BEING ADAPTED TO FORM A SLIDING FIT WITH THE JUXTAPOSED SURFACES OF SAID CYLINDRICAL CHAMBER, AND AN ENDLESS LOOP OF RESILIENT NON-METALLIC MATERIAL INTERPOSED BETWEEN THE BOTTOM EDGE OF SAID SLOT AND THE INNER EDGE OF SAID VANE MEANS EFFECTIVE TO URGE THE LATTER OUTWARDLY INTO LIGHT PRESSURE ENGAGEMENT WITH THE PERIPHERY OF SAID CYLINDRICAL CHAMBER.
References Cited (Backward Citations)
GB748388A
Cited
US2829603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |