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Class Information
Number: 74/594.3
Name: Machine element or mechanism > Elements > Cranks and pedals > Variable
Description: Units having incorporated therewith a self-actuated means for adjusting the axis of the pin relative to the axis of rotation of the arm continuously throughout the complete revolution of the arm.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7594879 |
Rotary rehabilitation apparatus and method |
Sep. 29, 2009 |
| 7507188 |
Rehab cycle crank |
Mar. 24, 2009 |
| 7350796 |
Crank apparatus for bicycles and the like |
Apr. 1, 2008 |
| 7226394 |
Rotary rehabilitation apparatus and method |
Jun. 5, 2007 |
| 7093516 |
Simple, compact and effective self-extending and retracting bicycle crank arm |
Aug. 22, 2006 |
| 7017444 |
Transmission for a bicycle pedal |
Mar. 28, 2006 |
| 7007570 |
Pedal crank mechanism for bicycle |
Mar. 7, 2006 |
| 6895834 |
Adjustable crank for bicycles |
May. 24, 2005 |
| 6837822 |
Structure of gear cluster for a bicycle |
Jan. 4, 2005 |
| 6820517 |
Pedal crank |
Nov. 23, 2004 |
| 6796200 |
Multi speed bicycle transmission including eccentric cranking assembly |
Sep. 28, 2004 |
| 6640662 |
Variable length crank arm assembly |
Nov. 4, 2003 |
| 6607326 |
Planetary sphere/ring gear |
Aug. 19, 2003 |
| 6589139 |
Exercise and rehabilitation equipment |
Jul. 8, 2003 |
| 6508146 |
Pedal driving mechanism of bicycle |
Jan. 21, 2003 |
| 6487933 |
Pedal-operated drive unit for bicycles or the like |
Dec. 3, 2002 |
| 6474193 |
Pedal crank |
Nov. 5, 2002 |
| 6341946 |
Continuously adjustable telescopic pedal crank length |
Jan. 29, 2002 |
| 6276234 |
Bicycle crank system |
Aug. 21, 2001 |
| 6253639 |
Extensible crank |
Jul. 3, 2001 |
| 6152471 |
Variable pedal driving device of bicycle |
Nov. 28, 2000 |
| 6050154 |
Bicycle pedal |
Apr. 18, 2000 |
| 5899119 |
Bicycle crank assembly |
May. 4, 1999 |
| 5879017 |
Pedaling efficiency |
Mar. 9, 1999 |
| 5653150 |
Pedalling device with suspension for cycles |
Aug. 5, 1997 |
| 5636554 |
Variable length crank arm |
Jun. 10, 1997 |
| 5571056 |
Derailleur cable collet |
Nov. 5, 1996 |
| 5566590 |
Crank device |
Oct. 22, 1996 |
| 5553515 |
Bicycle pedal |
Sep. 10, 1996 |
| 5442972 |
Variable ratio bicycle drive mechanism |
Aug. 22, 1995 |
| 5324241 |
Knee rehabilitation exercise device |
Jun. 28, 1994 |
| 5301571 |
Automatic speed gear for bicycles |
Apr. 12, 1994 |
| 5261294 |
Adjustable elliptical crank mechanism |
Nov. 16, 1993 |
| 5257562 |
Bicycle crank mechanism |
Nov. 2, 1993 |
| 5207119 |
Pedal mechanism for a human propulsion vehicle |
May. 4, 1993 |
| 5199324 |
Adjustably variable pedal apparatus and method |
Apr. 6, 1993 |
| 5188003 |
Power assist device for a drive mechanism |
Feb. 23, 1993 |
| 5157988 |
Elastic crank for bicycles |
Oct. 27, 1992 |
| 5142937 |
Driving apparatus with a speed changer for a bicycle |
Sep. 1, 1992 |
| 5125288 |
Arcuate bicyle crank lever apparatus |
Jun. 30, 1992 |
| 5121654 |
Propulsion and transmission mechanism for bicycles, similar vehicles and exercise apparatus |
Jun. 16, 1992 |
| 5095772 |
Bicycle pedal extension |
Mar. 17, 1992 |
| 5070744 |
Structure of bicycle chain transmission |
Dec. 10, 1991 |
| 5067370 |
Variable crank pedal drive for bicycles and the like |
Nov. 26, 1991 |
| 5060536 |
Flexible crank drive |
Oct. 29, 1991 |
| 5044226 |
Structure of bicycle chain transmission |
Sep. 3, 1991 |
| 4960013 |
Bicycle crank assembly |
Oct. 2, 1990 |
| 4915374 |
Recumbent exercise cycle with articulated pedals |
Apr. 10, 1990 |
| 4882945 |
Pedal extension device |
Nov. 28, 1989 |
| 4881732 |
Exercise device |
Nov. 21, 1989 |
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