Matches 1 - 35 out of 35
Match Document Document Title
6979933 Apparatus and method for charging and discharging a capacitor  
An apparatus for electrically stimulating a smart material includes a controllable power source for charging the smart material and/or switching circuitry for discharging the smart material. The...
6803697 Heat injected magnetically balanced engine  
Heat energy is converted into mechanical energy through the mobilization of electrical charges within a thermoelectric material. A plurality of plugs of thermoelectric material are mounted on a...
6516146 Actuator using shape memory alloy and method for controlling the same  
An actuator using a novel shape memory alloy which, even when there is a large difference between a transformation start temperature of the shape memory alloy and a heating start temperature, can...
6137206 Microelectromechanical rotary structures  
MEMS (Microelectromechanical System) structures are provided that are designed to rotate in response to thermal actuation or the like. In one embodiment, the MEMS rotary structure includes a hub...
6124662 Actuator using electrical contacts pressed in abutment  
An actuator for selectively exerting a force responsive to an increase or decrease in applied electrical energy, including an electrically conductive member slideably seated within an electrically...
5831417 Pseudo-mechanical system incorporating ohmic electromechanical transducer and electrical generator  
A pseudo-mechanical system in accordance with the invention comprises an electrical generator which converts mechanical energy into electrical energy to power the resistive heating of an ohmic...
5763979 Actuation system for the control of multiple shape memory alloy elements  
An actuation system for the control of multiple shape memory alloy elements is achieved by arranging the shape memory actuators into a matrix comprised of rows and columns which results in...
4814908 Thermo servo for track centering on a disk  
An apparatus and method for positioning a transducer over the center of a track is disclosed. An arm carries the transducer. Embedded in the arm is a heating element. The heating element is...
4435665 Thermal linear actuator  
A thermal linear actuator assembly comprises, a plurality of primary linear expansion members, a plurality of secondary linear expansion members having a substantially different coefficient of...
4431951 Resistance thermal unit for thermal electric energy demand meter  
A resistance thermal unit for a thermal electric energy demand meter responsive to a variable electric quantity characterized by a dielectric housing having a pair of opposed chambers for...
4348624 Thermal servo system for mechanical positioning  
A thermally controlled servo system in which a member supporting the drive for a device to be accurately positioned is moved relative to a stationary support member in response to changes in...
4310731 Thermal motion transducer  
A source of driving signals is coupled to a thermal transducer wire to provide a completed circuit. The source may include a DC bias supply and an audio amplifier. The bias supply heats the wire to...
4302710 Sun tracking controller  
An apparatus which controls the electric tracking motors of solar energy collectors and other solar devices which are adapted to be aimed at the sun.
4002954 Trigger circuit  
A wire of Nitinol can be stretched up to a given amount and will remain in this stretched state until heated to a critical temperature. When heated to the critical temperature, the wire restores to...
3806910 PRODUCT MONITORING DEVICE AND SYSTEM  
A product monitoring system including a releaseable locking device adapted to be secured to a product and actuatable between locked and unlocked positions. The locking device consists of a pair of...
3614677 ELECTROMECHANICAL MONOLITHIC RESONATOR  
A semiconductor substrate is supported so as to allow mechanical vibration of the substrate. This semiconductor substrate is of a size and has such electrical and mechanical characteristics as to...
3609593 VIBRATORY REED DEVICE  
An oscillator comprising an elongated member to which a piezoresistive element is coupled, the member being capable of flexing in response to a change in temperature and having a resonant frequency...
3495101 THERMAL MOTOR  
3460015 POSITIONING CONTROL SYSTEM  
3445740 STEP-BY-STEP THERMO-MAGNETIC MOTOR  
3423608 NONMAGNETIC THERMAL MOTOR FOR A MAGNETOMETER  
3389314 Proportional silicon controlled rectifier driven system for a heat motor  
3256734 Heat transfer measuring apparatus  
3229177 Thermoelectric motor in electron discharge device envelope  
3149246 Thermoelectric generators  
3147390 Thermo-electrostatic generator  
3138749 Incremental feed mechanisms  
3067345 Rod-mounted plural crystal assembly  
2978861 Time-measuring method and apparatus  
2926293 Electrical actuator  
2885625 Electrical measurement and control device  
2869060 Ice maker and timer  
2797546 Heat motors and overload devices therefor  
2782682 Micromanipulators  
3718922 Title is not available  
Matches 1 - 35 out of 35