US3135840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed commutators for switching units
Assignee: Electro Mechanical Research Inc
•
Filing: 1962-07-19
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Granted: 1964-06-02
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Expires: 1982-07-19
Abstract
No abstract record available.
Inventors
- 👤 Rudolf A Ausfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:04
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/14; H01H1/16; H01H1/60; H01H19/00; H01H19/54; H01H19/56; H01H19/566; H01H3/00; H01H3/004; Y; Y10; Y10S; Y10S200/00; Y10S200/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A COMMUTATOR, A HOUSING, A LOW VISCOSITY LIQUID FILLING SAID HOUSING, A ROTATABLE MAIN SHAFT IN SAID HOUSING, A MOTOR COUPLED WITH SAID SHAFT, AT LEAST ONE PAIR OF SWITCHING UNITS CONCENTRICALLY MOUNTED WITH THE AXIS OF SAID SHAFT; EACH SWITCHING UNIT COMPRISING A COMMUTATOR RING, A COLLECTOR RING, AND A ROTATABLY MOUNTED ROLLER RESILIENTLY BIASED TOWARD SAID RINGS; SAID COMMUTATOR RING CARRYING A PLURALITY OF INSULATED, CONDUCTING, ARCUATE SEGMENTS, SAID COLLECTOR RING BEING INSULATED FROM AND IN SUBSTANTIALLY PARALLEL-SPACED RELATION WITH SAID COMMUTATOR RING; A PUMP SANWICHED BETWEEN SAID SWITCHING UNITS, SAID PUMP INCLUDING A CYLINDRICAL ROTOR, AN ANNULAR STATOR, BOTH CONCENTRICALLY MOUNTED WITH THE AXIS OF SAID MAIN SHAFT WHEREBY A FLOW OF LIQUID IS ESTABLISHED WHEN SAID MOTOR IS ENERGIZED BY A DRIVING POWER SOURCE.
Claim 2
Dependent Claim
129 words
IN A COMMUTATOR, A HOUSING, A LOW VISCOSITY LIQUID FILLING SAID HOUSING, A ROTATABLE MAIN SHAFT IN SAID HOUSING, A MOTOR COUPLED WITH SAID SHAFT, AT LEAST ONE PAIR OF SWITCHING UNITS CONCENTRICALLY MOUNTED WITH THE AXIS OF SAID SHAFT; EACH SWITCHING UNIT COMPRISING A COMMUTATOR RING, A COLLECTOR RING, AND A ROTATABLY MOUNTED ROLLER RESILIENTLY BIASED TOWARD SAID RINGS; SAID COMMUTATOR RING CARRYING A PLURALITY OF INSULATED, CONDUCTING, ARCUATE SEGMENTS, SAID COLLECTOR RING BEING INSULATED FROM AND IN SUBSTANTIALLY PARALLEL-SPACED RELATION WITH SAID COMMUTATOR RING; A PUMP SANWICHED BETWEEN SAID SWITCHING UNITS, SAID PUMP INCLUDING A CYLINDRICAL ROTOR, AN ANNULAR STATOR, BOTH CONCENTRICALLY MOUNTED WITH THE AXIS OF SAID MAIN SHAFT WHEREBY A FLOW OF LIQUID IS ESTABLISHED WHEN SAID MOTOR IS ENERGIZED BY A DRIVING POWER SOURCE.
References Cited (Backward Citations)
US886225A
Cited
US1516617A
Cited
US1469032A
Cited
US1537647A
Cited
US1834896A
Cited
US2554488A
Cited
US3024334A
Cited
US2910552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |