Patent US3301081A successfully refreshed from Google Patents.
US3301081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noise eliminating coupling in gear unit
Assignee: Franklin Electric Co Inc
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Filing: 1964-02-25
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Granted: 1967-01-31
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Expires: 1984-02-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Karl W Kern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:10
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/02; F16D3/06; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19679; Y10T74/19684
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A MOTOR-GEAR BOX COMBINATION, COMPRISING A MOTOR UNIT AND A GEAR UNIT, EACH OF SAID UNITS INCLUDING A ROTATABLE SHAFT, MEANS CONNECTING SAID UNITS TOGETHER WITH SAID SHAFTS IN END-TO-END RELATION, AT LEAST ONE OF SAID SHAFTS BEING MOUNTED SUCH THAT IT IS PERMITTED LIMITED AXIAL MOVEMENT, MEANS COUPLING THE ADJACENT ENDS OF SAID SHAFTS TOGETHER SUCH THAT RELATIVE ROTATIVE MOVEMENT IS PREVENTED BUT RELATIVE AXIAL MOVEMENT IS PERMITTED, AND BIASING MEANS OPERATIVELY POSITIONED RELATIVE TO SAID TWO SHAFTS FOR URGING SAID TWO SHAFTS AXIALLY AWAY FROM EACH OTHER, WHEREBY THE ADJACENT ENDS OF SAID TWO SHAFTS ARE PREVENTED FROM BUTTING AND MAKING NOISE, AN AXIAL BORE BEING FORMED IN THE END OF SAID SHAFT OF SAID GEAR UNIT WHICH END IS ADJACENT SAID SHAFT OF SAID MOTOR UNIT, AND SAID BIASING MEANS COMPRISING A COMPRESSION SPRING WHICH IS POSITIONED WITHIN SAID BORE AND ENGAGES THE END OF SAID SHAFT OF SAID MOTOR UNIT, SAID COUPLING MEANS COMPRISING A SLEEVE WITH THE ENDS OF BOTH OF SAID SHAFTS MOUNTED WITHIN SAID SLEEVE, AND SAID SPRING ABUTTING SAID MOTOR UNIT SHAFT WITHIN SAID SLEEVE.
Claim 2
Dependent Claim
183 words
A MOTOR-GEAR BOX COMBINATION, COMPRISING A MOTOR UNIT AND A GEAR UNIT, EACH OF SAID UNITS INCLUDING A ROTATABLE SHAFT, MEANS CONNECTING SAID UNITS TOGETHER WITH SAID SHAFTS IN END-TO-END RELATION, AT LEAST ONE OF SAID SHAFTS BEING MOUNTED SUCH THAT IT IS PERMITTED LIMITED AXIAL MOVEMENT, MEANS COUPLING THE ADJACENT ENDS OF SAID SHAFTS TOGETHER SUCH THAT RELATIVE ROTATIVE MOVEMENT IS PREVENTED BUT RELATIVE AXIAL MOVEMENT IS PERMITTED, AND BIASING MEANS OPERATIVELY POSITIONED RELATIVE TO SAID TWO SHAFTS FOR URGING SAID TWO SHAFTS AXIALLY AWAY FROM EACH OTHER, WHEREBY THE ADJACENT ENDS OF SAID TWO SHAFTS ARE PREVENTED FROM BUTTING AND MAKING NOISE, AN AXIAL BORE BEING FORMED IN THE END OF SAID SHAFT OF SAID GEAR UNIT WHICH END IS ADJACENT SAID SHAFT OF SAID MOTOR UNIT, AND SAID BIASING MEANS COMPRISING A COMPRESSION SPRING WHICH IS POSITIONED WITHIN SAID BORE AND ENGAGES THE END OF SAID SHAFT OF SAID MOTOR UNIT, SAID COUPLING MEANS COMPRISING A SLEEVE WITH THE ENDS OF BOTH OF SAID SHAFTS MOUNTED WITHIN SAID SLEEVE, AND SAID SPRING ABUTTING SAID MOTOR UNIT SHAFT WITHIN SAID SLEEVE.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |