US4606241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable crank assembly
Assignee: Individual
•
Filing: 1984-04-27
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Granted: 1986-08-19
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Expires: 2004-04-27
Abstract
Abstract A crank assembly having an adjustment member extending approximately parallel to and fixed to one end of a crank lever, a bearing arrangement adjustably affixed to said adjustment member, a pivot arm rotatably connected to said bearing arrangement, a pedal and anchorage means for adjustably positioning the pedal on the pivot arm.
Inventors
- 👤 Verner Fredriksson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:19
CPC Classifications
B; B62; B62M; B62M3/00; B62M3/02; A; A63; A63B; A63B22/00; A63B22/0046; B62M3/14; A63B22/06; A63B22/0605; A63B2022/0611; A63B2022/0623; Y; Y10; Y10S; Y10S482/00; Y10S482/908; Y10T; Y10T74/00; Y10T74/21; Y10T74/2164; Y10T74/2173; Y10T74/2179
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
110 words
A crank assembly adjustable both as to the crank radius and the height of crank movement, comprising: a hub assembly including an axle; a crank lever affixed to said axle and having a length; a pivot arm rotatably connected to a bearing arrangement; an adjustment member affixed to and generally parallel to said crank lever for adjustably positioning said bearing arrangement at positions alongside said crank lever, said bearing arrangement being slidably connected to said adjustment member and provided with means for securing said bearing arrangement to said adjustment member at positions along said adjustment member; a pedal; and anchorage means for adjustably positioning said pedal on said pivot arm.
Claim 2
Dependent Claim
110 words
A crank assembly adjustable both as to the crank radius and the height of crank movement, comprising: a hub assembly including an axle; a crank lever affixed to said axle and having a length; a pivot arm rotatably connected to a bearing arrangement; an adjustment member affixed to and generally parallel to said crank lever for adjustably positioning said bearing arrangement at positions alongside said crank lever, said bearing arrangement being slidably connected to said adjustment member and provided with means for securing said bearing arrangement to said adjustment member at positions along said adjustment member; a pedal; and anchorage means for adjustably positioning said pedal on said pivot arm.
Claim 3
Dependent Claim
75 words
The crank assembly of claim 1, wherein said adjustment member includes a substantially rectangular plate having an end connected to an end of said crank lever, said adjustment member provided with a clamping member clamping said rectangular plate to said crank lever with a spacer interposed between said rectangular plate and said crank lever, said bearing arrangement including a recess which slidably receives said rectangular plate and an opening through which said spacer can pass.
Claim 4
Dependent Claim
34 words
The crank assembly of claim 1, wherein said adjustment member together with said pivot arm is longer than said crank lever, whereby a path of movement of said pedal may remain below said axle.
Claim 5
Dependent Claim
22 words
The crank assembly of claim 1, wherein said adjustment member has a length approximately equal to said length of said crank lever.
Claim 6
Dependent Claim
48 words
The crank assembly of claim 1, further comprising: a second crank lever affixed to said axle and extending from said axle in a direction opposite of the other crank lever; a second pedal rotatably connected to an end portion of said second crank arm remote from said axle.
Claim 7
Dependent Claim
40 words
The crank assembly of claim 5, wherein said adjustment member together with said pivot arm is longer than said other crank lever, whereby a path of movement of said pedal of said other crank lever may remain below said axle.
Claim 8
Dependent Claim
23 words
The crank assembly of claim 5, wherein said adjustment member has a length approximately equal to said length of said other crank 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) | 1989-08-18 | 1990-02-17 | 1990-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-18 | 1994-02-17 | 1994-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-18 | 1998-02-17 | 1998-08-19 | $7700.00 | Window Closed / Lapsed |