Patent US2167109A successfully refreshed from Google Patents.
Patent US3364867A successfully refreshed from Google Patents.
US3364867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary pump with removable port bridges
Assignee: TDK Micronas GmbH
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Filing: 1966-01-14
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Granted: 1968-01-23
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Expires: 1986-01-14
Abstract
No abstract record available.
Inventors
- 👤 August V Segelhorst
- 👤 Gordon H Bradford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:33
CPC Classifications
F; F04; F04C; F04C13/00; F04C13/001; F04C2/00; F04C2/30; F04C2/40; F04C2/44; F04C5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A PUMP, THE COMBINATION OF: (A) A HOUSING PROVIDED THEREIN WITH AN IMPELLER CHAMBER HAVING A PERIPHERAL WALL AND HAVING AN IMPELLER AXIS; (B) AN IMPELLER ROTATABLE IN SAID IMPELLER CHAMBER ABOUT SAID IMPELLER AXIS; (C) SAID IMPELLER BEING PROVIDED WITH BENDABLE ELASTOMERIC VANES HAVING OUTER EDGES SLIDABLE ALONG SAID PERIPHERAL WALL OF SAID IMPELLER CHAMBER AS SAID IMPELLER ROTATES THEREIN; (D) SAID PERIPHERAL WALL INCLUDING INLET AND OUTLET CAM SURFACES RESPECTIVELY HAVING INCREASING AND DECREASING RADII, MEASURED FROM SAID IMPELLER AXIS, IN THE DIRECTION OF ROTATION OF SAID IMPELLER; (E) INLET AND OUTLET PORTS RESPECTIVELY FORMED IN SAID INLET AND OUTLET CAM SURFACES; (F) REMOVABLE BRIDGE MEANS IN AT LEAST ONE OF SAID PORTS AND SUPPORTING SAID OUTER EDGES OF SAID VANES AS THEY SLIDE ACROSS SAID ONE PORT; AND (G) MEANS FOR REMOVABLY SECURING SAID BRIDGE MEANS IN PLACE IN SAID ONE PORT.
Claim 2
Dependent Claim
146 words
IN A PUMP, THE COMBINATION OF: (A) A HOUSING PROVIDED THEREIN WITH AN IMPELLER CHAMBER HAVING A PERIPHERAL WALL AND HAVING AN IMPELLER AXIS; (B) AN IMPELLER ROTATABLE IN SAID IMPELLER CHAMBER ABOUT SAID IMPELLER AXIS; (C) SAID IMPELLER BEING PROVIDED WITH BENDABLE ELASTOMERIC VANES HAVING OUTER EDGES SLIDABLE ALONG SAID PERIPHERAL WALL OF SAID IMPELLER CHAMBER AS SAID IMPELLER ROTATES THEREIN; (D) SAID PERIPHERAL WALL INCLUDING INLET AND OUTLET CAM SURFACES RESPECTIVELY HAVING INCREASING AND DECREASING RADII, MEASURED FROM SAID IMPELLER AXIS, IN THE DIRECTION OF ROTATION OF SAID IMPELLER; (E) INLET AND OUTLET PORTS RESPECTIVELY FORMED IN SAID INLET AND OUTLET CAM SURFACES; (F) REMOVABLE BRIDGE MEANS IN AT LEAST ONE OF SAID PORTS AND SUPPORTING SAID OUTER EDGES OF SAID VANES AS THEY SLIDE ACROSS SAID ONE PORT; AND (G) MEANS FOR REMOVABLY SECURING SAID BRIDGE MEANS IN PLACE IN SAID ONE PORT.
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) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |