US3138106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: Taco Inc
•
Filing: 1961-10-27
•
Granted: 1964-06-23
•
Expires: 1981-10-27
Abstract
No abstract record available.
Inventors
- 👤 Lebkuchner Benno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:18
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/0606; F04D13/0613; F04D13/0633; H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
IN A UNITARY LIQUID PUMP AND MOTOR, A CASING HAVING END PLATES ATTACHED THERETO; A BASE MEMBER AFFIXED TO SAID CASING AND ABUTTING ONE OF SAID END PLATES, SAID BASE MEMBER HAVING AN INLET AND AN OUTLET BETWEEN WHICH IS LOCATED A SINGLE IMPELLER CHAMBER; ALIGNED BEARINGS ON EACH OF SAID END PLATES; A SHAFT JOURNALED IN SAID BEARINGS; A MOTOR ROTOR FIXED TO SAID SHAFT WITHIN SAID CASING; A MOTOR STATOR WITHIN SAID CASING; MEANS FORMING A ROTOR CHAMBER SURROUNDING SAID ROTOR AND HERMETICALLY SEALING SAID STATOR FROM SAID ROTOR; AN IMPELLER CONNECTED TO SAID SHAFT AND LOCATED WITHIN SAID IMPELLER CHAMBER; POROUS MEANS IN THE END PLATE TO WHICH SAID BASE MEMBER IS FIXED SURROUNDING SAID SHAFT AND LEADING TO ONE OF SAID BEARINGS; FILTER MEANS SPACED FROM SAID POROUS MEANS ON SAID END PLATE TO WHICH THE BASE MEMBER IS FIXED; AND MEANS ATTACHED TO THE END PLATE OPPOSITE THAT ABUTTING SAID BASE MEMBER FOR PASSING ENTRAPPED AIR FROM SAID ROTOR CHAMBER WITHOUT PASSING LIQUID.
Claim 2
Dependent Claim
168 words
IN A UNITARY LIQUID PUMP AND MOTOR, A CASING HAVING END PLATES ATTACHED THERETO; A BASE MEMBER AFFIXED TO SAID CASING AND ABUTTING ONE OF SAID END PLATES, SAID BASE MEMBER HAVING AN INLET AND AN OUTLET BETWEEN WHICH IS LOCATED A SINGLE IMPELLER CHAMBER; ALIGNED BEARINGS ON EACH OF SAID END PLATES; A SHAFT JOURNALED IN SAID BEARINGS; A MOTOR ROTOR FIXED TO SAID SHAFT WITHIN SAID CASING; A MOTOR STATOR WITHIN SAID CASING; MEANS FORMING A ROTOR CHAMBER SURROUNDING SAID ROTOR AND HERMETICALLY SEALING SAID STATOR FROM SAID ROTOR; AN IMPELLER CONNECTED TO SAID SHAFT AND LOCATED WITHIN SAID IMPELLER CHAMBER; POROUS MEANS IN THE END PLATE TO WHICH SAID BASE MEMBER IS FIXED SURROUNDING SAID SHAFT AND LEADING TO ONE OF SAID BEARINGS; FILTER MEANS SPACED FROM SAID POROUS MEANS ON SAID END PLATE TO WHICH THE BASE MEMBER IS FIXED; AND MEANS ATTACHED TO THE END PLATE OPPOSITE THAT ABUTTING SAID BASE MEMBER FOR PASSING ENTRAPPED AIR FROM SAID ROTOR CHAMBER WITHOUT PASSING LIQUID.
References Cited (Backward Citations)
US2871791A
Cited
US2064070A
Cited
US2851956A
Cited
US2814254A
Cited
US2920575A
Cited
US2931307A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |