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
Drugs for prophylaxis or mitigation of taxane-induced neurotoxicity
Image processing apparatus, image registering method, program causing computer to execute image registering method, and recording medium in which program is recorded
Polyester resin for toner, electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming met
Rotating-body electrification mechanism, image carrier unit, process cartridge, image forming apparatus, and method for electrifying image carrier unit
Piperazinyl methyl phenyl cyclohexane compound
System and method for redundant array copy removal in a pointer-free language
Delay lines, amplifier systems, transconductance compensating systems and methods of compensating
  Randomly Featured Patents
Optimum driver spacing for a line array with a minimum number of radiating elements
Direct-connect fuse unit for battery terminal
Beverage caddy
Relative range camera calibration
Method and apparatus for the treatment of sleep apnea and related breathing disorders
Hair restorative compositions and methods for treating damaged hair and safely chemically treating hair
Frequency correction in a mobile radio receiver using an analogue and a digital control loop
Locking devices
Modular input/output system with redundancy and testing
System and method for sustaining electric power during a momentary power interruption in an electric thrust reverser actuation system