Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7438658 | Bicycle front derailleur A bicycle front derailleur includes a chain guide that is provided with a pushing element that is movable relative to the chain guide to assist in shifting a bicycle chain from a smaller front sprocket to an adjacent larger sprocket. The chain guide is part of a mov... | 10/21/2008 |
| 7258638 | Sprocket of a chain transmission for a bicycle A sprocket of a chain transmission for a bicycle is described, intended to be coupled with a further sprocket with a smaller diameter in a group of sprockets integral in rotation. The sprocket comprises a plurality of teeth which follow each other on the sprocket se... | 08/21/2007 |
| 7252610 | Automotive engine accessory drive system In a belt drive system 20 for transmitting torque at a crankshaft 11 of an automotive engine 10 to a supercharger (engine accessory) 130a, an output pulley unit 40 formed of a first flat pulley 50 and a second flat pu... | 08/07/2007 |
| 6912371 | System for regulating the sliding force of a fusing belt in an image forming apparatus An image forming apparatus includes a roller having a central portion and an outer edge portion, a fusing belt positioned over at least a portion of the central portion of the roller, and a belt regulating part, positioned on the outer edge portion of the roller, th... | 06/28/2005 |
| 6600507 | Photoreceptor belt tracking apparatus employing an actuated edge guide system and low lateral force rollers A system and method for tracking belts disposed on rollers in a photoreceptor apparatus. The system includes a movable, belt edge guide that operates in combination with an encoder, a belt edge sensor, a belt hole sensor for detecting a hole in the belt s... | 07/29/2003 |
| 6567633 | Method and apparatus for reducing lateral motion of a transfer belt of a laser printer An improved intermediate belt system (ITM module) is provided, which controls the lateral motion of the belt in the scan direction of an EP printer, without the use of edge reinforcements or other attachments added to the belt. The tracking system of this... | 05/20/2003 |
| 6322470 | Pivoting dual arm chain tensioner system for contacting multiple chain strands An engine tensioning system including a pair of pivoting arms used to simultaneously tension two separate strands of the same chain in an engine timing system. The tensioner system includes a lever. The lever has a pair of fixed pins attached to an end lo... | 11/27/2001 |
| 6149541 | Gas actuated derailleur having an indexing mechanism for setting a chain guide in a plurality of fixed positions A gas actuated derailleur for a bicycle includes a base member, a movable member supporting a chain guide, a coupling mechanism coupling the base member to the movable member so that the movable member moves relative to the base member, and an actuation m... | 11/21/2000 |
| 6053832 | Belt driving device having a belt shift correcting member A belt driving device in which an endless belt is spanned around a drive pulley and a driven pulley and the belt is driven by rotation of the drive pulley includes a belt shift correcting member for correcting shifting of the endless belt. When the endles... | 04/25/2000 |
| 6022284 | Apparatus for changing gear ratio in bicycles, especially in race bicycles Apparatus for changing bicycle gear ratios comprising pedals (1) to the shaft (3) of which a group of coaxial overdrive gears is fixed, with at least an overdrive gear (20) of larger diameter and at least an overdrive gear (2) of smaller diameter; a plura... | 02/08/2000 |
| 6007442 | Multiple sprocket for a bicycle gear shifting mechanism A gearshift mechanism has at least two sprocket wheels on a set of driving sprocket wheels or a set of driven sprocket wheels, having shifting aids to facilitate shifting a chain up and down, it being possible for the shifting to take place under load. Th... | 12/28/1999 |
| 5957794 | Continuously variable all speed transmission A continuously variable all speed transmission apparatus employs a conically-shaped driven surface which is frictionally contacted by a taut endless compliant transmission member that extends to a circular power source such as the pedal hub of a bicycle. ... | 09/28/1999 |
| 5830046 | Belt shifting idler pulley for reciprocating an abrasive belt An apparatus for continually shifting an endless abrasive belt trained between a drive pulley and an idler wheel. The belt is trained around an idler wheel which is supported by an arm above a continually pivoting platform transverse to the travel directi... | 11/03/1998 |
| 5199502 | Edger with improved rotary blade driving device An edger having a driving device for operating a rotary blade, the driving device including a driving pulley; a pulley to be driven; a driving belt arranged between the two pulleys; a swing arm having the center of its swinging motion at a position differ... | 04/06/1993 |
| 4832186 | Conveyor tracking roller having helical guides with variable pitch A conveyor belt system having an improved pulley is disclosed in which the improved pulley includes a roller having grooves of varying width machined into the cylindrical surface of the roller to form raised guides or lands of equal width therebetween whi... | 05/23/1989 |
| 4748714 | Cleaner with belt shifting The invention comprehends a belt shifting arrangement for an upright cleaner in which belt shifting to an intermediate idler pulley is occasioned by either handle movement or pedal actuation. Either of these movements functions to cam the belt onto the id... | 06/07/1988 |
| 4446594 | Upright type electric cleaner An upright type electric cleaner including a main body case (1) and a suction port body (1), wherein when the main body case is brought to an upright position as the machine is inoperative, a rotary brush extending downwardly from the bottom of the suctio... | 05/08/1984 |
