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7591789 Talking incentive spirometry devices  
An apparatus used in the medical industry, in order to increase transpulmonary pressure and respiratory volumes, to improve inspiratory muscle performance and re-establish the normal pulmonary...
7582109 Thermal transition methods and devices  
A method of sequentially transitioning a thermally active shape memory device progressively translocates the thermally active shape memory device through a first controlled temperature zone and...
7555900 Linear actuator using shape memory wire with controller  
A linear actuator is provided, comprising a housing defining an interior channel, a stop extending from the housing and displaceable relative to the housing, and at least one wire formed of a...
7489228 Low power consumption bistable microswitch  
A bistable MEMS microswitch produced on a substrate and capable of electrically connecting ends of at least two conductive tracks, including a beam suspended above the surface of the substrate. The...
7444812 Shape memory alloy MEMS heat engine  
A microelectromechanical systems (MEMS) based heat engine capable of converting thermal energy gradients into mechanical or electrical energy, as well as its fabrication process is disclosed. This...
7283030 Doubly-anchored thermal actuator having varying flexural rigidity  
A doubly-anchored thermal actuator for a micro-electromechanical device such as a liquid drop emitter or a fluid control microvalve is disclosed. The thermal actuator is comprised of a base element...
7159398 Concentric tube shape memory alloy actuator apparatus and method  
A rotary SMA actuator includes an SMA assembly having a plurality of grooves formed therein to form a plurality of concentrically arranged SMA tubes. A heater element is disposed against an input...
7104056 Design of ferromagnetic shape memory alloy composites and actuators incorporating such materials  
The present invention employs an optimized cross-sectional shape for a ferromagnetic shape memory alloy (FSMA) composite that is used in a spring-type actuator, an improved hybrid magnetic trigger...
6911891 Bistable actuation techniques, mechanisms, and applications  
A bistable structure provided by the invention is characterized as including a deflection element that has mechanically constrained end points and a compliant span between the end points that is...
6882264 Electrothermal self-latching MEMS switch and method  
Electrothermal Self-Latching MEMS Switch and Method. According to one embodiment, a microscale switch having a movable microcomponent is provided and includes a substrate having a stationary...
6771158 Micro electromechanical differential actuator  
A micro electromechanical differential actuator is comprised of a suspension arm structure and/or a bridge structure to make a two-degree-of-freedom and bi-directional motion. The actuator support...
6484848 Continuous rotary actuator using shape memory alloy  
A continuous rotary actuator using a shape memory alloy has a simple structure, is small and light-weight, and has a high torque, which can lock the actuator against rotation during periods when...
6483419 Combination horizontal and vertical thermal actuator  
A micrometer sized, single-stage, horizontal and vertical thermal actuator capable of repeatable and rapid movement of a micrometer-sized optical device off the surface of a substrate. The...
6240728 Electromechanical device and insulation method thereof  
An actuator device has electrical components, which are subjected to electric voltage, located inside a housing near movable mechanical elements. Insulation of the electrical components from the...
6175989 Shape memory alloy controllable hinge apparatus  
A shape memory alloy hinge assembly for deploying at least a first object in a controllable, substantially shockless manner is disclosed. Generally, the hinge assembly includes at least a first...
6129181 Constant force spring actuator  
A constant force actuator transforms applied heat to an applied force on an output device. Strips of shape memory alloy are coiled into spirals and trained to have this configuration as a static...
6070851 Thermally buckling linear micro structure  
A thermally buckling linear micro structure, in which by isolating technology a thermal oxidization isolation layer are generated on the two ends of a micro structure, or a material with larger...
6044646 Micro cilia array and use thereof  
A micromechanical actuator having the ability to move in two directions. The actuator can be manufactured in planar arrays using semiconductor manufacturing equipment. The planar array of actuators...
6041600 Utilization of quantum wires in MEMS actuators  
A mesh of quantum wires is utilized in a non-conductive material to improve its conductivity. The non-conductive material can be highly expansive interposed in the mesh. The expansive material is...
5618409 Centrifuge for the continuous separation of substances of different densities  
The centrifuge (1) described has at least one device (11,12) designed to control the operation of the centrifuge, the devices being mounted to rotate with the rotating part of the centrifuge and to...
5529279 Thermal isolation structures for microactuators  
A microactuator preferably in the form of a microminiature valve for controlling the flow of a fluid carried by a flow channel includes a first substrate having a thermally-actuated member...
5430333 Energy generating system and method  
A plurality of inflation devices are linked to one another to form a loop that is movably restrained so that a segment of the loop is disposed at a lower reference location at the given depth in a...
5353828 Valve construction and method of making the same  
A valve construction and method of assembling the same are provided, the valve construction having a deflector unit for directing fluid flow from the inlet of the housing means of the valve...
5344117 Micro-actuator  
A micro-actuator includes force elements and compensation elements arranged on a bending element such that a change in the environmental temperature does not cause any flexing of the bending element.
5318268 Thermally actuated valve with ambient temperature compensation  
An electrically operated thermally responsive valve having a bimetal operator arm heated by an electrical resistance heater for deflection to move a resilient poppet between an open and closed...
5271597 Bimetallic diaphragm with split hinge for microactuator  
A microactuator of a silicon substrate having a frame with a central circular flexible diaphragm suspended from the substrate by a hinge. The hinge is a layer of silicon dioxide of uniform...
5182910 Micromechanical manipulator  
Disclosed is a micromechanical manipulator composed of substrate 1, heating lements and a manipulator arm 2 which is based on the principle of the bimaterial effect. Prior art bimaterial...
5172551 Actuator  
An actuator is comprised of a plurality of three-dimensionally arranged containers each of which is constructed into deformable configuration and each of which is set to accommodate therein an...
5069419 Semiconductor microactuator  
A semiconductor microactuator has a silicon semiconductor substrate having suspension means connected thereto. The suspension means has a first layer of material having a first thermal expansion...
5040567 Multi-way valve  
The multi-way valve comprises two valve seats (12, 14) formed in the valve chamber whose seat surfaces are parallel. Two closing bodies (22, 24) cooperating with one of these valve seats (12, 14)...
5037061 Valve construction and method of making the same  
A valve construction and method of making the same are provided, the valve construction comprising a housing provided with a chamber therein and with an inlet leading to the chamber and outlet...
4884780 Valve actuating arrangement  
An active member can deform in accordance with its temperature. The active member is connected to a mechanically-operated valve member so that the operated member is driven in accordance with...
4841730 Thermal actuator  
An actuator comprising an actuator body, a shape memory member mounted on the body and a heating element in heat exchange relationship to the shape memory member. By activating the heating element,...
4824276 Helix coupling  
A coupling for connecting helix members in series, which consists of a pair of U-shaped elements, one of which is attached to each helix end with the "U" sections of the elements interlocked. The...
4798051 Rotary actuator with tailored torque output  
A rotary actuator with tailored torque output comprises a shape memory alloy rod or tube encased within or filled with a burnable chemical grain. In its initial state, the rod or tube has zero...
4754920 Compact operator for gas control valves  
A compact linear operator is provided for a gas valve. The operator may be of modular form for operative combination with combination gas controls of existing design, as by threaded engagement with...
4691518 Vertically oscillating heat engine  
A simple nitinol wire powered engine employing a four bar linkage which oscillates the nitinol wire in a vertical plane into and out of a pair of aligned different temperature baths.
4691517 Laterally oscillating nitinol engine  
A simple nitinol wire powered engine which employs a pair of interconnected drive members which oscillate in a horizontal plane about two different axes of rotation.
4683721 Twin-crank type heat engine  
A heat engine is provided with twin crankshafts and coil shaped power elements mounted between each of two crankshafts. Each power element moves upward and downward, parallel with the surface of a...
4636149 Differential thermal expansion driven pump  
The biomedical pump includes a housing with an internal pump chamber defined by a first rigid concave wall formed by the pump body, and an opposed flexible wall defined by a diaphragm incorporating...
4600164 Safety seat belt system and latch release mechanism used therein  
An over-the-shoulder automotive safety seat belt system having a latch providing a tensionless comfort setting for the belt during use and having remotely operable thermostat metal means to release...
4551978 Bimetallic solar engine  
The motion produced by a temperature change in a bimetallic element is used as a source of mechanical work energy in a way similar to the way that the bimetallic strip operates in a thermostat but...
4513570 Manual reset type bimetal thermostat  
Disclosed is a manual reset type bimetal thermostat where a reversible plate is affixed to a disc type bimetal which can reverse in response to temperature change, characterized in that at least...
4484725 Bimetal driven control valve  
A bimetal driven control valve comprises: a main body having an inflow channel, an outflow channel, and an orifice which connects the inflow channel and the outflow channel; a first bimetal which...
4472939 Energy conversion system  
A thermal-mechanical energy converting device including a fixed cylinder, a frame mounted to co-axially rotate about the fixed cylinder, at least one wheel rotatably support on the frame, and...
4423596 Thermal engine  
A thermal engine utilizing a strip of nitinol material or other thermally responsive shape memory effect material to drive a reciprocating output shaft, said strip of material forming a common wall...
4407124 Memory power engine  
An engine for conversion of low grade thermal energy into useful rotational energy incorporates a plurality of shape memory elements coupled in series to the crankpins of a crankshaft and to load...
4393654 Shape memory element engine  
An engine for conversion of low grade thermal energy into useful rotational energy incorporates a plurality of hollow deformable shape memory elements coupled in series with the crankpins of a...
4300350 Bistable thermal actuator  
A thermal actuator or heat motor employing end-to-end bimetal, bistable strip portions spanning a pair of supports but having a total length greater than the straight-line distance across the...
4281513 Field effect memory alloy heat engine  
A heat engine employing a memory alloy and a force field such as gravity for converting heat energy into mechanical work. Field effect elements are mounted on the distal ends of flexible spokes...
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