Patent US4038878A successfully refreshed from Google Patents.
US4038878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicycle derailler
Assignee: Beatrice Companies Inc
•
Filing: 1976-05-17
•
Granted: 1977-08-02
•
Expires: 1996-05-17
Abstract
Abstract A bicycle derailler which provides for an actuating mechanism which prevents stretching and breaking of the actuating cable by allowing an actuating link to move when the cable is tightened at times when the wheels of the bicycle are not moving. Under these conditions, when the actuating link is moved by the cable it spring biases the derailler mechanism such that when the bicycle starts to move the spring bias causes shifting of the derailler.
Inventors
- 👤 Walter Dian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:33
CPC Classifications
B; B62; B62M; B62M9/00; B62M9/04; B62M9/06; B62M9/10; B62M9/12; B62M9/121; B62M9/124; B62M9/1248; B62M9/1242; B62M9/127; B62M9/128
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
67 words
A bicycle derailler having upper and lower main derailler members, a pair of links pivotally attached to said upper and lower main derailler members, an actuating lever pivotally attached to said lower main derailler member, a spring mounted between one of said links adjacent said lower main derailler member and said actuating lever to bias said actuating lever and an actuating cable attached to said actuating lever.
Claim 2
Dependent Claim
67 words
A bicycle derailler having upper and lower main derailler members, a pair of links pivotally attached to said upper and lower main derailler members, an actuating lever pivotally attached to said lower main derailler member, a spring mounted between one of said links adjacent said lower main derailler member and said actuating lever to bias said actuating lever and an actuating cable attached to said actuating lever.
Claim 3
Dependent Claim
56 words
A bicycle derailler according to claim 1 wherein four pins pivotally attach said pair of links to said upper and lower main derailler members and said spring is a coil spring mounted about one of said pins with a first end that engages one of said links and a second end which engages said actuating lever.
Claim 4
Dependent Claim
31 words
A bicycle derailler according to claim 2 wherein said actuating lever has a projection which extends between said pair of links and said second end of said spring engages said projection.
Claim 5
Dependent Claim
13 words
A bicycle derailler according to claim 3 wherein said actuating link is U-shaped.
Claim 6
Dependent Claim
18 words
A bicycle derailler according to claim 3 wherein said actuating lever is pivotally supported by said one pin.
Claim 7
Dependent Claim
42 words
A bicycle derailler according to claim 1 wherein said actuating lever has a cable locking portion comprising an arcuate portion and at least one projection and said cable passes around said arcuate portion and under said one projection to lock said cable.
Claim 8
Dependent Claim
27 words
A bicycle derailler according to claim 6 wherein said actuating lever has a second projection adjacent said one projection and said cable passes under said second projection.
Claim 9
Dependent Claim
15 words
A bicycle derailler according to claim 7 wherein said arcuate portion is a button rivet.
Claim 10
Dependent Claim
20 words
A bicycle derailler according to claim 8 wherein said arcuate portion is an extruded coller formed from said actuating lever.
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) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |