Patent US3166171A successfully refreshed from Google Patents.
US3166171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pawl coupling
Assignee: ZF Friedrichshafen AG
•
Filing: 1962-05-02
•
Granted: 1965-01-19
•
Expires: 1982-05-02
Abstract
No abstract record available.
Inventors
- 👤 Schwerdhofer Hans Joachim
- 👤 Gerstner Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:11
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/24; F16D41/30; B; B62; B62M; B62M11/00; B62M11/04; B62M11/14; B62M25/00; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2133; Y10T74/2136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
A PAWL COUPLING FOR A BICYCLE HUB AND THE LIKE COMPRISING, IN COMBINATION: (A) A CIRCULAR RATCHET; (B) A PAWL CARRIER ROTATABLE RELATIVE TO SAID RATCHET IN TWO DIRECTIONS IN A RADIAL PLANE ABOUT A COMMON AXIS, SAID PAWL CARRIER HAVING A CIRCUMFERENTIAL FACE PORTION OPPOSITE SAID RACTHET, SAID FACE PORTION DEFINING A RADIALLY OPEN RECESS THEREIN, AT LEAST A PORTION OF SAID RECESS BEING CYLINDRICAL ABOUT A PIVOT AXIS TRANSVERSE OF SAID PLANE; (C) A PAWL HAVING AN INNER PORTION RECEIVED IN SAID RECESS AND SUBSTANTIALLY CONFORMING TO SAID CYLINDRICAL PORTION THEREOF FOR PIVOTING MOVEMENT ABOUT SAID PIVOT AXIS, AND AN OUTER PORTION ENGAGEABLE WITH SAID RATCHET, SAID OUTER PORTION INCLUDING (I) FIRST ABUTMENT MEANS CIRCUMFERENTIALLY ENGAGEABLE WITH SAID RATCHET WHEN SAID PAWL CARRIER ROTATES IN ONE OF SAID DIRECTIONS FOR TRANSMITTING TORQUE BETWEEN SAID PAWL CARRIER AND SAID RATCHET, AND (2) SECOND ABUTMENT MEANS RADIALLY ENGAGEABLE WITH SAID RATCHET FOR SLIDING MOVEMENT OF SAID SECOND ABUTMENT MEANS RELATIVE TO SAID RATCHET, AND FOR SUBSTANTIALLY PREVENTING CONTACT BETWEEN SAID FIRST ABUTMENT MEANS AND SAID RATCHET WHEN SAID PAWL CARRIER ROTATES IN THE OTHER DIRECTION; AND (D) RESILIENT MEANS FOR URGING SAID INNER PORTION INTO CONFRONTING ENGAGEABLE WITH SAID CYLINDRICAL RECESS PORTION.
Claim 2
Dependent Claim
202 words
A PAWL COUPLING FOR A BICYCLE HUB AND THE LIKE COMPRISING, IN COMBINATION: (A) A CIRCULAR RATCHET; (B) A PAWL CARRIER ROTATABLE RELATIVE TO SAID RATCHET IN TWO DIRECTIONS IN A RADIAL PLANE ABOUT A COMMON AXIS, SAID PAWL CARRIER HAVING A CIRCUMFERENTIAL FACE PORTION OPPOSITE SAID RACTHET, SAID FACE PORTION DEFINING A RADIALLY OPEN RECESS THEREIN, AT LEAST A PORTION OF SAID RECESS BEING CYLINDRICAL ABOUT A PIVOT AXIS TRANSVERSE OF SAID PLANE; (C) A PAWL HAVING AN INNER PORTION RECEIVED IN SAID RECESS AND SUBSTANTIALLY CONFORMING TO SAID CYLINDRICAL PORTION THEREOF FOR PIVOTING MOVEMENT ABOUT SAID PIVOT AXIS, AND AN OUTER PORTION ENGAGEABLE WITH SAID RATCHET, SAID OUTER PORTION INCLUDING (I) FIRST ABUTMENT MEANS CIRCUMFERENTIALLY ENGAGEABLE WITH SAID RATCHET WHEN SAID PAWL CARRIER ROTATES IN ONE OF SAID DIRECTIONS FOR TRANSMITTING TORQUE BETWEEN SAID PAWL CARRIER AND SAID RATCHET, AND (2) SECOND ABUTMENT MEANS RADIALLY ENGAGEABLE WITH SAID RATCHET FOR SLIDING MOVEMENT OF SAID SECOND ABUTMENT MEANS RELATIVE TO SAID RATCHET, AND FOR SUBSTANTIALLY PREVENTING CONTACT BETWEEN SAID FIRST ABUTMENT MEANS AND SAID RATCHET WHEN SAID PAWL CARRIER ROTATES IN THE OTHER DIRECTION; AND (D) RESILIENT MEANS FOR URGING SAID INNER PORTION INTO CONFRONTING ENGAGEABLE WITH SAID CYLINDRICAL RECESS PORTION.
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) | 1968-01-19 | 1968-07-20 | 1969-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-19 | 1972-07-20 | 1973-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-19 | 1976-07-20 | 1977-01-19 | $7700.00 | Window Closed / Lapsed |