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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...
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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...
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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...
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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,...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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-...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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US20100126166 |
ACTUATOR ASSEMBLY AND ASSOCIATED APPARATUSES
An actuator assembly, adapted to move a movable member between a first position and a second position, is provided. Such an actuator assembly comprises an actuator device configured to selectively...
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US20110173969 |
SHAPE MEMORY-BASED ACTUATORS AND RELEASE MECHANISMS THEREFROM
SM-based actuators (110) and release mechanisms (100) therefrom and systems (500) including one or more release mechanisms (100). The actuators (110) comprise a SM member (118) and a deformable...
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US20110107758 |
DRIVE MODULE, METHOD OF ASSEMBLING THE SAME, AND ELECTRONIC APPARATUS
A drive module of the invention includes a tubular or columnar body to be driven, a tubular supporting body for receiving therein the body to be driven, a plate spring member for elastically...
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