99results about How to "Large stroke" patented technology

A contactor has a film substrate of an insulating material and plural wiring patterns on the substrate. A first end of each wiring pattern extends out from a first edge of the substrate as a first contact terminal and a second end of each wiring pattern extends out from a second edge of the substrate as a second contact terminal, and a part of the contactor located between the first end and second end can be deformed resiliently.

The invention provides a friction and wear testing machine of guide rail of machine tool and relates to a friction and wear testing device of guide rail pair, belonging to the technological field of tribology. The testing device comprises a testing system and a measuring system. An oil blocking plate in the testing system is provided with an upper sample platform, an oil blocking plate, a lower sample platform, a first sensor mounting bracket and a second sensor mounting bracket; the first sensor mounting bracket and the second sensor mounting bracket are respectively arranged on a base; a flat V guide rail is arranged between the lower sample platform and the base; an upper sample fixture is arranged between the first sensor mounting bracket and the second sensor mounting bracket; the first sensor mounting bracket and the second sensor mounting bracket are connected with a cover plate respectively by a support rod. The novel friction and wear testing machine of the machine tool can simulate the actual working condition, and directly adopt the guide rail as the sample. Moreover, the testing machine can not only be used for rapidly assessing the material of the guide rail pair and the lubricating medium, but also can be used for the accelerated life test of the straight guide rail pair and the rolling guide rail pair.

An apparatus comprising a substrate; and a platform elevated above the substrate and supported by curved flexures. The curvature of said flexures results substantially from variations in intrinsic residual stress within said flexures. In one embodiment the apparatus is a deformable mirror exhibiting low temperature-dependence, high stroke, high control resolution, large number of degrees of freedom, reduced pin count and small form-factor. Structures and methods of fabrication are disclosed that allow the elevation of mirror segments to remain substantially constant over a wide operating temperature range. Methods are also disclosed for integrating movable mirror segments with control and sense electronics to a produce small-form-factor deformable mirror.

Linear actuators comprised of a plurality of geometric links connected together in displacement multiplied fashion by a plurality of SMA wires. The links may have a trigon or chevron configuration. The trigon links may be combined with a hexagonal or rhomboidal shaft to create a defined stacking pattern of links about the shaft. The shaft extends from the medial portion of the stack. Ohmic heating circuits connect to non-moving ends of SMA wires. Various groupings of links in parallel displacement are described.

A high-bandwidth deformable fast steering mirror (“HDFSM”) system, including an electromechanical fast steering mirror (“FSM”) apparatus, and a deformable mirror (“DM”) apparatus mounted on the electromechanical FSM apparatus. The DM apparatus further includes a DM substrate, a backplane assembly, a plurality of electrostrictive actuators in physical communication with and between the DM substrate and the backplane assembly, for deforming the DM substrate, and a plurality of strain gauges, each strain gauge mounted on one of the plurality of electrostrictive actuators, the plurality of strain gauges measuring individual positions of the plurality of electrostrictive actuators and transmitting the positions as actuator position signals. The high-bandwidth deformable FSM also includes a closed-loop control system, the control system controlling the electromechanical FSM apparatus and the DM apparatus based upon a command input and the actuator position signals.

This hand tool is designed for installing and extracting the elastic fastenings of railroad rails. It comprises a base body, mounted movably to the underside of which is an active part which acts on the fastening that is to be inserted or removed. A rotating head or a rotating part that can be pivoted about an essentially vertical axis is provided on the top of the main body, this head carrying a hand-powered member such as a push bar which extends to the side of said head. A force-multiplying transmission, which may for example be hydraulic, connects the hand-powered member to the active part. In this way the hand-powered member can, independently of the use position of the active part, be placed in a suitable orientation, particularly inside a safe zone.

A spring retaining space that retains therein an arc spring has a predetermined curvature radius and attachment angle. The arc spring is flexed and retained in the spring retaining space, and thus the curvature radius of the arc spring becomes small, while the attachment angle of the arc spring becomes larger than a free angle. Accordingly, torsion stress with a negative sign is applied to a coil member forming the inner circumferential portion of the arc spring.

The liquid seal type fluid-filled mount comprises a cup-shaped housing 1 having a flange 1A provided with a mounting hole; a stud 3 disposed along a central axis of the cup-shaped housing so as to be positioned in a central opening of a fixed damping unit; a flexible seal cap 7 sealing fluid-tight between the upper end of the stud and the cup-shaped housing; a high viscosity liquid 2 for being filled in a chamber formed by the cup-shaped housing 1 and the flexible seal cap 7; a movable damping plate 4 mounted to a lower end of the stud 3; a fixed damping unit 10 being fixed between the flexible seal cap 7 and the movable damping plate 4 and placed in the high viscosity fluid; and a spring 13 disposed between a bottom of the cup-shaped housing 1 and the movable damping plate 4.

A transverse electrodisplacive actuator array for controlling the optical phasing of a reflective surface includes a support structure; a plurality of electrodisplacive actuator elements extending from a proximate end at the support structure to a distal end; each actuator element including at least one addressable electrode and one common electrode spaced from the addressable electrode and extending along the direction of said proximate and distal ends along the transverse d₃₁ strain axis; a reflective member having a reflective surface and a mounting surface mounted on the actuator elements; and a plurality of addressable contacts and at least one common contact for applying voltage to the addressable and common electrodes to induce a transverse strain in addressed actuator elements to effect an optical phase change in the reflective surface at the addressed actuator elements.

A high bandwidth, large stroke spin-stand for testing components of a disc drive includes a coarse positioning stage and a rotary micropositioning stage. The spin-stand is capable of positioning a transducer head relative to the data storage disc based on one or both of: (1) an angular position of a rotary actuator arm in the rotary micropositioning stage; and (2) servo data read from the data storage disc. The angular position of the rotary actuator arm is detected by an encoder. In one embodiment, position adjustments are based on the detected angular position. In another embodiment, position adjustments are based on servo data read from the data storage disc, but are also conditional on angular position being consistent with the servo data. In yet another embodiment, both angular position and servo data from a track are linearized to generate PES adjustment parameters that are recorded on the data storage disc to redefine the track as more circular or to linearize the PES.

A shock absorbing material for automobiles, having extremely good shock absorbing properties, capable of absorbing shocks applied to a passenger in a car at the time of a crash, or the like, and reducing the head injury criteria, comprising a rigid polyurethane foam having a compression stress of 3 kg/cm2 or more, with concavities arranged on at least one planar surface. In order to mount the head protecting material to a ceiling material, a trim, a car body, or the like, easily and securely, the head protecting material is mounted to the ceiling material, or the like, with an adhesive sheet comprising a base material made of a foam material with an adhesive layer formed thereon.

The self-latching device comprises a frame (11, 17, 21, 24, 31) arranged to be mounted on the hinged closure member, in particular on a gate, a latch bolt (7) movably mounted on the frame in a horizontal direction between a latching position and a retracted position, a latch bolt spring (70) arranged to bias the latch bolt (7) into the latching position, and operator means (10) mounted on top of the frame so as to be operable from both sides of the closure member (2) and connected by means of a latch bolt operating mechanism to the latch bolt (7) for moving it from the latching to the retracted position. The self-latching device is especially suited for being mounted in a vertical tubular member of or fixed to a safety gate around an area which is dangerous for children, in particular around a swimming pool area.

An impact-absorbing member includes tabular ribs extending in a direction orthogonal to an impact load input direction, and disposed spaced apart in the impact load input direction and parallel to one another; and a load transmitting member connected with width-wise opposite ends of the respective tabular ribs to extend between the tabular ribs on a diagonal with respect to the impact load input direction, for transmitting to each of the tabular ribs an impact load in a form of tensile load directed in a lateral direction, wherein differing levels are established for at least one of: tensile stiffness in the plurality of tabular ribs per se; and transmission efficiency of the tensile load by the load transmitting member, so that load-deformation characteristics of some of the plurality of tabular ribs differ in the impact load input direction.