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US20130055709 Release Actuator Employing Components with Different Coefficients of Thermal Expansion  
An actuator includes a capturing part, a retained part and a heating element which applies heat to the retained part or the capturing part responsive to selective application of power to the at...
US20140238013 VANADIUM DIOXIDE MICROACTUATORS  
This disclosure provides systems, methods, and apparatus related to vanadium dioxide microactuators. In one aspect, a method includes depositing a vanadium dioxide layer on a sacrificial layer...
US20130043691 ACTUATOR  
An actuator for opening a locking of an emergency oxygen container or a mask door in an aircraft. The actuator includes an opener of a shape memory alloy and a resistance wire. The resistance wire...
US20080250785 Micromechanical device with gold alloy contacts and method of manufacture  
A MEMS switch device is made using a gold alloy as the switch contact material. The increased mechanical hardness of the alloy compared to the pure gold prevents the contacts of the switch from...
US20120297880 Smart Material Actuator with Enclosed Compensator  
An actuator driven by a smart material device and suitable for use as an actuator, energy capture device, or sensor, having an enclosed compensator, potting material, at least one actuating arm,...
US20080314040 Micromachined electrothermal rotary actuator  
The present disclosure is directed to a micromachined rotary actuator constructed of a central portion and an outer portion at least partially surrounding the central portion and separated from the...
US20110173971 STIMULI-RESPONSIVE PRODUCT  
Embodiments of a product such as a stimuli-responsive product can comprise a shape memory component and a nanofiber component that forms a fibrous microstructure or network. The resulting product...
US20110016860 ACTUATOR DRIVING DEVICE  
An actuator driving device includes: an actuator made of a shape metal alloy having a property that a predetermined shape is memorized in advance, and that the predetermined memorized shape is...
US20110219764 ACTUATOR  
An actuator comprises an actuator element in the form of a lamina 2 made from a shape memory material. A heating element 6 is bonded to the lamina 2 and serves to heat the lamina 2 to cause it...
US20130227943 SHAPE MEMORY ALLOY ACTUATORS WITH SENSIBLE COATINGS  
Methods of applying sensible coatings with at least one spatially-varying characteristic to shape memory alloy actuators, particularly actuators comprising linear elements such as wires strips or...
US20120174574 Drive module and electronic apparatus  
A drive module includes: a lower plate spring 7 which is connected to an end surface of a lens frame 4 and an end surface of a module frame 5 arranged in a −Z direction; and a module lower plate 8...
US20100293941 ELECTRO-THERMAL ACTUATOR DEVICE  
An electro-thermal actuator device includes a case defining a cavity in which are housed a thermal actuator, an electrical heater and, at least partially, an actuating shaft. The device comprises a...
US20100074608 SHAPE MEMORY ALLOY ACTUATION APPARATUS  
A miniature camera lens actuation apparatus employs an SMA actuator comprising SMA wire to move a camera lens element. To provide autofocus, the SMA actuator is heated across its range of...
US20080129796 THERMAL BEND ACTUATOR COMPRISING PASSIVE ELEMENT HAVING NEGATIVE THERMAL EXPANSION  
A thermal bend actuator, having a plurality of elements, is provided. The actuator comprises a first active element for connection to drive circuitry a second passive element mechanically...
US20110000207 Driving module and electronic apparatus provided with the same  
In a driving module and an electronic apparatus provided with the driving module, assembly is simplified and a driving operation can be stabilized. For this purpose, a driving module 1 includes a...
US20120067042 TEMPERATURE ACTIVATABLE ACTUATOR  
An actuator is provided having a temperature activatable actuating member comprising an inductively couplable material. The actuator has an electrical heating element for electrically heating the...
US20110173970 FLEXIBLE ACTUATOR BASED ON SHAPE MEMORY ALLOY SHEET  
A flexible unit-cell actuator includes a shape memory alloy sheet having a fold between adjacent legs in one state and a heat source that upon activation concentrates heating of the shape memory...
US20130067908 PERFECTED ROTATIONAL ACTUATOR  
A perfected rotational actuator, comprising, in two box-shaped shells (31, 32), a pair of plates (12, 13) connected to each other by a central pin (14) and containing, between the same, a plurality...
US20140000253 PNEUMATIC WINDING MECHANISM FOR A TIMEPIECE COMPRISING A MECHANICAL ENERGY SOURCE  
A pneumatic mechanism for a timepiece, is disclosed, which comprises a mechanical energy source, the pneumatic mechanism being arranged to recharge the mechanical energy source, and comprising a...
US20130145760 IMPACT DRIVE TYPE ACTUATOR  
An impact drive type actuator (10) is comprised of a wire-shaped shape memory alloy (11) which contracts upon being electrified and heated, a disk-shaped insulating heat conductor (12) which...
US20100058899 ELECTRO-MECHANICAL ACTUATOR DEVICE AND APPARATUS INCORPORATING SUCH DEVICE  
A microgripper (2) comprises a pair of opposed actuator devices (4, 6) connected to an electronic control unit (8). Each actuator (4, 6) includes an actuator body 10 of transparent flexible epoxy...
US20070182146 Pyrotechnic triggering of thermally activated shape memory materials for selectively changing a structural and/or mechanical property of a vehicle member  
A vehicle member generally comprises a thermally activated shape memory material in operative communication with a pyrotechnic device. The pyrotechnic device is effective to thermally change a...
US20110094217 ELECTROSTRICTIVE COMPOSITE AND ELECTROSTRICTIVE ELEMENT USING THE SAME  
An electrostrictive composite includes a flexible polymer matrix and a carbon nanotube film structure. The carbon nanotube film structure is located on a surface of the flexible polymer matrix, and...
US20130333374 ELECTROSTRICTIVE COMPOSITE AND ELECTROSTRICTIVE ELEMENT USING THE SAME  
An electrostrictive composite includes a flexible polymer matrix and a carbon nanotube film structure. The carbon nanotube film structure is at least partially embedded into the flexible polymer...
US20090019847 Stepping Actuator and Method of Fabrication  
The current invention provides a stepping actuator, achieving large range up to ±35 μm with low operating voltages of 15V or lower and large output forces of up to ±110 μN. The actuator has an in-...
US20130318961 POLYMERIC ACTUATOR, ACTUATOR DEVICE, METHOD OF MANUFACTURING POLYMERIC ACTUATOR, AND METHOD OF MANUFACTURING ACTUATOR DEVICE  
There is provided a polymeric actuator including: a pair of facing portions located so as to face each other; and a folded portion through which one end portions of the pair of facing portions are...
US20100307150 ELECTROTHERMAL MICROACTUATOR FOR LARGE VERTICAL DISPLACEMENT WITHOUT TILT OR LATERAL SHIFT  
A microactuator for displacing a platform vertically with respect to a substrate includes a first rigid frame, a first flexible bimorph beam connecting the first frame to the substrate, a second...
US20120017582 SHAPE MEMORY ALLOY POWERED HYDRAULIC ACCUMULATOR HAVING WIRE CLAMPS  
A system, in certain embodiments, includes an accumulator having a first plate, a second plate positioned at an offset from the first plate, and a shape memory alloy wire extending between the...
US20120276807 SHAPE MEMORY ALLOY ACTUATOR ASSEMBLY  
An actuator assembly including a resilient substrate having one or more shape memory alloys secured to the substrate. The shape memory alloys are configured to move a portion or all of the actuator...
US20090007561 POSITION CONTROL METHOD FOR SHAPE MEMORY ALLOY ACTUATOR  
To provide a position control method for a shape memory alloy actuator that improves positioning accuracy of the actuator while ensuring satisfactory response until achieving positioning, the...
US20090301077 SHAPE MEMORY ALLOY ACTUATOR SYSTEM  
A resistance feedback circuit has a storage section which stores a feedback gain calculated in advance, a resistance value obtained from a detection section, and a time at which the resistance...
US20120017581 SHAPE MEMORY ALLOY POWERED HYDRAULIC ACCUMULATOR HAVING WIRE GUIDES  
A system, in certain embodiments, includes an accumulator having a first plate with a first wire guide and a second plate with a second wire guide. The second plate is positioned at an offset from...
US20090277170 CONTROLLING HEAT TRANSFER IN ACTIVE MATERIAL ACTUATORS USING EXTERNAL ELEMENTS  
An actuator includes a thermally activated active material member, and an external element configured to selectively engage the member and presenting a predetermined rate of thermal conductivity...
US20090241328 ELECTRODE CAULKING APPARATUS  
An electrode calking apparatus that enables to fix electrodes 2 at positions distant a predetermined distance on a shape memory alloy wire 1 in a condition that the shape memory alloy wire 1 is...
US20140260237 RESISTIVELY HEATED SHAPE MEMORY POLYMER DEVICE  
A resistively heated shape memory polymer device is made by providing a rod, sheet or substrate that includes a resistive medium. The rod, sheet or substrate is coated with a first shape memory...
US20110154817 Operating mechanism for furniture parts including a shape memory element  
In an operating mechanism for a movable furniture part with a drive arrangement including a shape memory element, wherein the drive arrangement is fixed to one furniture part and comprises a drive...
US20100078173 DOWNHOLE DEVICE ACTUATOR AND METHOD  
A temperature activated actuator installed on a tubular to actuate an adjacent device may include one or more shape-memory alloy elements. The elements may be coupled between a first portion and a...
US20120216525 METHOD OF STARTING AND OPERATING A SHAPE MEMORY ALLOY HEAT ENGINE  
A shape memory alloy (SMA) heat engine includes a first rotatable pulley, a second rotatable pulley, and an SMA material disposed about the first and second rotatable pulleys and between a hot...
US20080256946 DRIVING DEVICE AND METHOD OF MANUFACURING THE SAME  
A driving device and driving device manufacturing method that ensure stable fixing of an SMA, without causing difficulties in downsizing the device, and without adversely affecting the performance...
US20100192567 ACTUATOR COMPRISING ELEMENTS MADE OF SHAPE MEMORY ALLOY WITH BROADENED RANGE OF WORKING TEMPERATURES  
An actuator (10) is described in which the functional element (11) is made of a shape memory alloy, and comprising means (14, 18) for increasing the load applied onto the functional element when...
US20140210219 LATCH WITH ROTARY SMA ACTUATOR  
A rotary actuator includes a plurality of plate members stacked and coupled together for rotation relative to each other. A biasing member provides a biasing force tending to cause a rotatable end...
US20100005795 Precision method and apparatus for controlling the shape memory alloy  
The invention discloses a method and apparatus to control the shaping change of Shape-Memory-Alloy (SMA). The piece-wised current drain control device is designed to independently deliver current...
US20140260238 BIDIRECTIONAL SHAPE MEMORY DEVICE  
A resistively heated shape memory polymer device is operated using resistive heating to heat the shape memory polymer device. The resistively heated shape memory polymer device is made by providing...
US20120187144 SELF-ALIGNING TERMINATION FOR MEMORY ALLOY WIRE  
A self-aligning memory alloy wire actuator has a memory alloy wire having first and second ends with at least one terminal coupled to one end of the memory alloy wire. The terminal includes two...
US20120180474 SHAPE MEMORY ALLOY ACTUATOR  
A shape memory alloy actuator includes a shape memory alloy wire portion, a non-deformable portion, a wire portion which is formed by the shape memory alloy wire portion and the non-deformable...
US20120191241 MEMORY WIRE TERMINATOR WITH SPRING CONTACTS  
A container for use in a dispensing system is disclosed. The container comprises a body, a linkage element movably attached to the body, a control module, and an actuator comprising a memory wire...
US20130047603 SHAPE MEMORY ALLOY ACTUATOR  
A shape memory alloy actuator according to the present invention includes a shape memory alloy wire which is inserted through a tube member, a movable body which moves in a direction in which, the...
US20100329775 CONNECTING STRUCTURES COMPRISING HEATED FLEXURES AND OPTICAL PACKAGES INCORPORATING THE SAME  
Particular embodiments of the present invention relate generally to connecting structures comprising heated flexures for aligning a first component with a second component. According to one...
US20100275592 CONTROL OF A SHAPE MEMORY ALLOY ACTUATION APPARATUS  
An SMA actuation arrangement comprises: an SMA actuator arranged on contraction caused by heating to drive movement of a movable element relative to a support structure; a current source operative...
US20100257859 SHAPE MEMORY ALLOY DRIVE DEVICE  
A shape memory alloy drive device has drive control portion for displacing a shape memory alloy up to a target displacement value by applying a voltage or an electric current to the shape memory...
Matches 1 - 50 out of 55 1 2 >