US3215002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual speed hub
Assignee: ZF Friedrichshafen AG
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Filing: 1962-07-12
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Granted: 1965-11-02
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Expires: 1982-07-12
Abstract
No abstract record available.
Inventors
- 👤 Schwerdhofer Hans Joachim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:41
CPC Classifications
B; B62; B62M; B62M11/00; B62M11/04; B62M11/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
330 words
A DUAL SPEED HUB FOR BICYCLES, MOTORCYCLES, AND THE LIKE, COMPRISING: (A) A STATIONARY SHAFT HAVING AN AXIS; (B) A DRIVER MEMBER ROTATABLE ABOUT SAID SHAFT IN FORWARD AND BACKWARD DIRECTIONS; (C) A HUB SHELL SUPPORTED TO EXTEND COAXIALLY WITH SAID SHAFT FOR ROTATION ABOUT SAID AXIS IN SAID FORWARD AND BACKWARD DIRECTIONS; (D) POWER TRANSMISSION ELEMENTS BETWEEN SAID DRIVER MEMBER AND SAID HUB SHELL, SAID ELEMENTS INCLUDING (1) PLANETARY GEARING MEANS; (2) A FIRST AND SECOND TOOTHED FACE, SAID FACES BEING ADAPTED TO ENGAGE EACH OTHER AXIALLY, (3) COMPRESSION SPRING MEANS FOR URGING SAID TOOTHED FACES INTO AXIAL DRIVING ENGAGEMENT DURING ROTATION OF SAID DRIVER MEMBER IN SAID FORWARD DIRECTION, (4) FIRST AND SECOND ELEMENT MEANS, SAID FIRST ELEMENT MEANS AND SAID FIRST TOOTHED FACE BEING ARRANGED TO ROTATE DURING ROTATION OF SAID DRIVER MEMBER IN SAID FORWARD AND BACKWARD DIRECTIONS, SAID SECOND ELEMENT MEANS AND SAID SECOND TOOTHED FACE BEING ARRANGED TO ROTATE DURING ROTATION OF SAID DRIVER MEMBER IN SAID FORWARD DIRECTION WHILE IN A FIRST POSITION, BUT TO COME TO A STANDSTILL AND TO MOVE TO A SECOND POSITION IN RESPONSE TO ROTATION OF SAID DRIVER MEMBER IN SAID BACKWARD DIRECTION, SAID TOOTHED FACES BEING OUT OF ENGAGEMENT WHEN SAID SECOND ELEMENT MEANS AND SAID SECOND TOOTHED FACE ARE IN SAID SECOND POSITION, AND (5) TWO GROUP OF ELEMENTS TO BE OPTIONALLY INCLUDED IN THE POWER TRANSMISSION IN RESPONSE TO THE RELATIVE POSITION ASSUMED BY SAID SECOND ELEMENT AND SAID SECOND TOOTHED FACE; AND (E) A COASTER BRAKE ASSEMBLY INCLUDING (1) A DRIVE SLEEVE CONNECTED TO SAID DRIVE MEMBER FOR ROTATION ABOUT SAID SHAFT, (2) A BRAKE MEMBER THREADEDLY CONNECTED TO SAID DRIVE SLEEVE, (3) A FREE-WHEELING CLUTCH PREVENTING SAID BRAKE MEMBER FROM TURNING DURING ROTATION OF SAID DRIVER MEMBER IN SAID BACKWARD DIRECTION, AND (4) ANOTHER FREE-WHEELING CLUTCH PREVENTING SAID SECOND TOOTHED FACE FROM TURNING DURING ROTATION OF SAID DRIVER MEMBER IN BACKWARD DIRECTION, SAID OTHER FREE-WHEELING CLUTCH BEING OPERATIVELY CONNECTED TO SAID BRAKE MEMBER.
Claim 2
Dependent Claim
330 words
A DUAL SPEED HUB FOR BICYCLES, MOTORCYCLES, AND THE LIKE, COMPRISING: (A) A STATIONARY SHAFT HAVING AN AXIS; (B) A DRIVER MEMBER ROTATABLE ABOUT SAID SHAFT IN FORWARD AND BACKWARD DIRECTIONS; (C) A HUB SHELL SUPPORTED TO EXTEND COAXIALLY WITH SAID SHAFT FOR ROTATION ABOUT SAID AXIS IN SAID FORWARD AND BACKWARD DIRECTIONS; (D) POWER TRANSMISSION ELEMENTS BETWEEN SAID DRIVER MEMBER AND SAID HUB SHELL, SAID ELEMENTS INCLUDING (1) PLANETARY GEARING MEANS; (2) A FIRST AND SECOND TOOTHED FACE, SAID FACES BEING ADAPTED TO ENGAGE EACH OTHER AXIALLY, (3) COMPRESSION SPRING MEANS FOR URGING SAID TOOTHED FACES INTO AXIAL DRIVING ENGAGEMENT DURING ROTATION OF SAID DRIVER MEMBER IN SAID FORWARD DIRECTION, (4) FIRST AND SECOND ELEMENT MEANS, SAID FIRST ELEMENT MEANS AND SAID FIRST TOOTHED FACE BEING ARRANGED TO ROTATE DURING ROTATION OF SAID DRIVER MEMBER IN SAID FORWARD AND BACKWARD DIRECTIONS, SAID SECOND ELEMENT MEANS AND SAID SECOND TOOTHED FACE BEING ARRANGED TO ROTATE DURING ROTATION OF SAID DRIVER MEMBER IN SAID FORWARD DIRECTION WHILE IN A FIRST POSITION, BUT TO COME TO A STANDSTILL AND TO MOVE TO A SECOND POSITION IN RESPONSE TO ROTATION OF SAID DRIVER MEMBER IN SAID BACKWARD DIRECTION, SAID TOOTHED FACES BEING OUT OF ENGAGEMENT WHEN SAID SECOND ELEMENT MEANS AND SAID SECOND TOOTHED FACE ARE IN SAID SECOND POSITION, AND (5) TWO GROUP OF ELEMENTS TO BE OPTIONALLY INCLUDED IN THE POWER TRANSMISSION IN RESPONSE TO THE RELATIVE POSITION ASSUMED BY SAID SECOND ELEMENT AND SAID SECOND TOOTHED FACE; AND (E) A COASTER BRAKE ASSEMBLY INCLUDING (1) A DRIVE SLEEVE CONNECTED TO SAID DRIVE MEMBER FOR ROTATION ABOUT SAID SHAFT, (2) A BRAKE MEMBER THREADEDLY CONNECTED TO SAID DRIVE SLEEVE, (3) A FREE-WHEELING CLUTCH PREVENTING SAID BRAKE MEMBER FROM TURNING DURING ROTATION OF SAID DRIVER MEMBER IN SAID BACKWARD DIRECTION, AND (4) ANOTHER FREE-WHEELING CLUTCH PREVENTING SAID SECOND TOOTHED FACE FROM TURNING DURING ROTATION OF SAID DRIVER MEMBER IN BACKWARD DIRECTION, SAID OTHER FREE-WHEELING CLUTCH BEING OPERATIVELY CONNECTED TO SAID BRAKE MEMBER.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |