Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Shifter with shape memory alloy and safety










Image Number 19 for United States Patent #8117938.

A shifter incorporates a shape memory alloy wire (SMA actuator) to control movement of a blocker to selectively prevent moving a shift lever (or pawl) out of its park position until predetermined vehicle conditions are met. A mechanical fuse (i.e., flexible overload spring) prevents damage to the SMA actuator where the shift lever (or pawl) can be frictionally stopped from movement despite the contraction of the SMA actuator. The control circuit for the SMA actuator includes a photo-electric switch for stopping electrical power to the SMA actuator when the shift lever is moved from its park position, and the shift lever includes structure for mechanically continuing to hold the switch open while out of park. Further, the control circuit is operably connected to an ignition key retaining mechanism so that the ignition key cannot be removed when the lever is not in its park position.








 
 
  Recently Added Patents
Low latency interrupt collector
Using storage cells to perform computation
Label with surface ornamentation
Wristband
Protection circuit, substrate for electro-optical device, electro-optical device, electrophoretic display device, electronic apparatus, and manufacturing method of electro-optical device
Method and system for filtering noises in an image scanned by charged particles
Method, apparatus, computer program, and computer readable storage media for controlling the insertion of tab sheets into a print job
  Randomly Featured Patents
Composition and method of improving the unvulcanized properties of blends containing reclaimed rubber
Ultra portable wheeled valet
Tilt mounting system
Integrated wafer pod-load/unload and mass-transfer system
Method and apparatus for signaling voice compression in a network
Method of preparing cell cultures from biological specimens for assaying a response to an agent
Air purifier
Liquid crystal display device
Cross validation of data using multiple subsystems
Directional control interlock circuit for loader/backhoes and loaders