69results about How to "Sufficient displacement" patented technology

An expandable reamer apparatus and methods for reaming a borehole, wherein a laterally movable blade carried by a tubular body may be selectively positioned at an inward position and an expanded position. The laterally movable blade, held inwardly by blade-biasing elements, may be forced outwardly by drilling fluid selectively allowed to communicate therewith by way of an actuation sleeve disposed within the tubular body. Alternatively, a separation element may transmit force or pressure from the drilling fluid to the movable blade. Further, a chamber in communication with the movable blade may be pressurized by way of a downhole turbine or pump. A ridged seal wiper, compensator, movable bearing pad, fixed bearing pad preceding the movable blade, or an adjustable spacer element to alter expanded blade position may be included within the expandable reamer. In addition, a drilling fluid pressure response indicating an operational characteristic of the expandable reamer may be generated.

There is provided an electronic security system for a perimeter structure that incorporates a fiber optic cable secured to the perimeter structure. Typically the perimeter structure is a fence. A light pulse is transmitted down the fiber optic cable. Mechanical attenuation devices disposed at various locations along the fiber optic cable are responsive to intrusion attempts. The mechanical attenuation devices produce measurable attenuations to the light pulse. Using backscattering light detection technology an intrusion attempt and the location of an intrusion is detected.

Pieces of tissue are fused together and simultaneously cut by compressing the pieces together at an interface, delivering an impulse of electrical power which is converted into sufficient thermal energy to fuse the pieces together at the interface and simultaneously cut the fused tissue pieces along a well-defined linear path. The impulse, and the fusion and the simultaneous cutting, occur within a preferable time of 1.5-2.0 seconds but no greater than 4.0 seconds. The temperature of the thermal energy is regulated between 220° C.-320° C. The force applied on the tissue pieces is sufficient to fuse the tissue at the interface followed by further compression to cut the fused tissue along the linear path as a result of the thermal energy and a zero distance gap between jaws which compress the tissue pieces. The jaws have smooth working surfaces with an Ra of 0.15 or less microns up to 0.40 microns.

Locking members installed in a housing of a connector each include a first piece having at one end an engaging portion to engage the anchoring portion formed in a flexible printed circuit board, a pressure receiving portion at the other end to be urged by a pivoting member, and a projection inwardly extending from the pressure receiving portion; a second piece having at one end a connection portion connected to a substrate; and a jointing fulcrum portion connecting the first and second pieces. When the engaging portions of the locking members engage the anchoring portions of the circuit board, the second pieces are void of parts facing to the engaging portions. The housing includes notches at positions corresponding to the locking members. The connector achieves further reduced overall height and stable holding force for the circuit board even with less conductors without failed connection.

Locking members installed in a housing of a connector each include a first piece having at one end an engaging portion to engage the anchoring portion formed in a flexible printed circuit board, a pressure receiving portion at the other end to be urged by a pivoting member, and a projection inwardly extending from the pressure receiving portion; a second piece having at one end a connection portion connected to a substrate; and a jointing fulcrum portion connecting the first and second pieces. When the engaging portions of the locking members engage the anchoring portions of the circuit board, the second pieces are void of parts facing to the engaging portions. The housing includes notches at positions corresponding to the locking members. The connector achieves further reduced overall height and stable holding force for the circuit board even with less conductors without failed connection.

A spring-to-spring engagement of a kick-out spring and a secondary spring is disposed intermediate a structure supporting an electrical connector and an insertable and latchable electronic module or the like to enhance the disconnection and ejection of the module from the connector to which the module is connected. The spring-to-spring engagement insures both that adequate spring force is stored upon insertion and connection of the module and that disconnection and ejection forces are applied to the module. The forces are applied over a sufficient distance to fully displace the module from its latched position to its position of disconnection from the connectors and still provide spring force travel of the module to eject at least partially the module from the receiver or port into which the module was inserted and connected. A side benefit of the arrangement is that a high force is exerted on the module once it is unlatched for removal, and this high force will displace the module adequately to insure that the latch of the module does not relatch and to prevent removal of the module.

Method and apparatus to make-up or break-out a threaded tubular connection using an integrated power tong and back-up tong (10). The power tong (20) may be disabled upon sensing a predetermined threshold amount of displacement of at least a portion of a back-up tong (14). The sensed displacement indicates that the back-up tong (14) is slipping, and power tong (20) rotation may be disabled to prevent damage to the pipe string (16) or surrounding equipment. A slippage sensor (40) may be disposed to sense displacement of at least a portion of the back-up tong (14) relative to a supporting frame (12). In one embodiment, the slippage sensor (40) may be operatively coupled to a valve (50) disposed in communication with a fluid line (46) supplying power fluid to the power tong (20). The power tong (20) may be disabled by impairing flow to the power tong (20) upon sensing a predetermined displacement of the back-up tong (14).

In an implant for the dynamic fixation of a corrective osteotomy, it is provided that a fixing section (3) including a hole (9) for the reception of a spongiosa screw is connected via a crank (4) with a particularly laterally offset, elongated anchoring section (1) designed in the longitudinal direction as a rigid anchoring shaft (1), which is preferably configured to include at least three external anchoring edges (12) capable of engaging the inner side of a long bone, thus providing an implant with an improved fixation and a larger corrective range.

An expandable reamer apparatus and methods for reaming a borehole, wherein a laterally movable blade carried by a tubular body may be selectively positioned at an inward position and an expanded position. The laterally movable blade, held inwardly by blade-biasing elements, may be forced outwardly by drilling fluid selectively allowed to communicate therewith by way of an actuation sleeve disposed within the tubular body. Alternatively, a separation element may transmit force or pressure from the drilling fluid to the movable blade. Further, a chamber in communication with the movable blade may be pressurized by way of a downhole turbine or pump. A ridged seal wiper, compensator, movable bearing pad, fixed bearing pad preceding the movable blade, or adjustable spacer element to alter expanded blade position may be included within the expandable reamer. In addition, a drilling fluid pressure response indicating an operational characteristic of the expandable reamer may be generated.

Disclosed is a slip joint of a steering apparatus for a vehicle, the slip joint including: an outer member having a plurality of first assembling recesses; an inner member being inserted within the outer member and having a plurality of second assembling recesses; and a slip bush, which is inserted between the outer member and the inner member and has mounting parts, into which balls and rollers inserted, and elastic parts having one side cut out in an axial direction, each mounting part having a plurality of first mounting holes and a plurality of second mounting holes. Each elastic part transfers power while compensating for clearance even when the balls disposed between the inner member and the outer member of the slip joint are worn away so that a rattling noise generated due to clearance is removed, and steering stability and durability of the slip joint can be improved.

An electrostatic actuator includes a substrate upon which substantially U-shaped support beams are arranged such that a movable element is displaceable in the Y-axis direction. Then, the movable element is displaced from an initial position to a switching position by an electrostatic force between electrodes. When the movable element is at the initial position, the support beams are configured such that the arm portions of the support beams are not parallel to each other and, when the movable element is displaced by a large amount to the vicinity of the switching position, the arm portions are extended in the X-axis direction so as to be substantially parallel to each other. Thus, since the spring constant in the X-axis direction of the support beams is increased, transverse locational deviations when the movable element is displaced and short-circuiting by the deviations are prevented and, as a result, the movable element can be stably displaced by a large amount.

A coolant union includes a seal assembly having a first seal member and a non-rotating second seal member. At least one of the annular sealing surfaces presented by the rotating seal member and the non-rotating seal member is chamfered such that the chamfered sealing surface presents a sealing surface width less than the width of the dimension of the other sealing surface. The fluid coolant union further includes a U-shaped annular secondary seal member having a chamfered portion structurally arranged to receive a triangular back-up ring which stores sufficient relative displacement of the floating seal assembly to create a separation between the first rotating seal and the second non-rotating seal members during the unpressurized condition.

A four-valve per cylinder engine has two intake valves, two exhaust valves and a centrally located fuel injector. Between each adjacent pair of valves is a valve bridge with a point of minimum separation between adjacent valves. In the present disclosure, the glow plug port is defined in the cylinder top at a location outboard of the minimum separation between adjacent and at a depth which is tangent to an edge of a fuel jet emanating the injector. By placing the glow plug farther outboard than found in the prior art, the glow plug contacts the fuel as it comes out of the injector and as it rebounds off a feature of the piston bowl.

A piezoelectric ceramic composition includes: a composite oxide, as a main component thereof, represented by the composition formula,Pba[(Zn1 / 3Nb2 / 3)xTiyZrz]O3,wherein a, x, y and z satisfy the followingrelations, 0.96≦a≦1.03, 0.005≦x≦0.047,0.42≦y≦0.53, 0.45≦z≦0.56, and x+y+z=1, and the following additives in the indicated percentages by mass in relation to the main component,Cu as a first additive, in a content α, in terms of Cu2O, falling within a range 0<α≦0.5%;at least one of Li, Co, Ni, Ga and Mg, as a second additive, in a content β, in terms of carbonate for Li, falling within a range 0<β≦0.1%, in a content δ1, in terms of oxide for Co, Ni and Ga, falling within a range 0<δ1≦0.2%, and in a content δ2, in terms of carbonate for Mg, falling within a range 0<δ2≦0.2%;and at least one of Ta, Nb, W and Sb, as a third additive, in a content γ, in terms of oxide, falling within a range 0<γ≦0.6%.

Method and apparatus to make-up or break-out a threaded tubular connection using an integrated power tong and back-up tong (10). The power tong (20) may be disabled upon sensing a predetermined threshold amount of displacement of at least a portion of a back-up tong (14). The sensed displacement indicates that the back-up tong (14) is slipping, and power tong (20) rotation may be disabled to prevent damage to the pipe string (16) or surrounding equipment. A slippage sensor (40) may be disposed to sense displacement of at least a portion of the back-up tong (14) relative to a supporting frame (12). In one embodiment, the slippage sensor (40) may be operatively coupled to a valve (50) disposed in communication with a fluid line (46) supplying power fluid to the power tong (20). The power tong (20) may be disabled by impairing flow to the power tong (20) upon sensing a predetermined displacement of the back-up tong (14).

A liquid jetting head using a piezoelectric element that is capable of obtaining sufficient displacement through the application of a driving voltage is provided. In the liquid jetting head, which comprises a substrate formed with a pressure chamber, a diaphragm formed on the substrate, and a piezoelectric thin film element formed on the diaphragm, the diaphragm bends in convex form toward the pressure chamber side, and the amount by which the diaphragm bends is no more than 0.4% of the width of the pressure chamber.

A suspension for a HGA includes a flexure having a tongue region and an out trigger. The out trigger has a pair of rigid beams and a pair of spring beams. The pair of spring beams enables the flexure to possess favorable flexibility and assists a slider to have enough displacement. The pair of rigid beams provides the flexure enough stiffness which not only successfully prevents the HGA with the out trigger from suspension deformation and dimple separation, but also assists to improve shock performance of the HGA. Furthermore, such configuration of the suspension provides the slider a good static performance and thus improves dynamic performance of the HGA. The present invention also discloses a HGA with the suspension, a manufacturing method of the HGA, and a drive unit with such HGA.

The invention relates to a piezoelectric gas valve used in piezoelectric pile driver. Wherein, the valve is connected to one side of flexible baffle plate via hinge, and the lower end of another side has a force adjustable bolt while the upper end has a sealing disc and connecting the gas outlet; the valve has a gas inlet; the flexible support outside the valve contacts one end of piezoelectric pile driver while another end contacts the adjustable bolt; the upper end of one side of flexible baffle plate contacts one end of drive rod that inserting the valve and be sealed via the sealing cushion; the another end of drive rod that extending outside the valve contacts one end of piezoelectric pile driver. The invention uses piezoelectric pile driver with displacement amplifying function, and the baffle plate with flexible hinge as the baffle plate of nozzle baffle piezoelectric gas valve, with the advantages of straight motion and bended piezoelectric gas valve to confirm enough drive force and output displacement and avoid the gap error and response delay caused by the common lever amplifying device. The invention can be used in middle high pressure area with large flux, quick response and high drive force.

A buoyancy lift system having an inflatable bladder with a tether stowed inside a canister secured to a vessel. A sealing member is slidably received within canister and secures to the inflatable bladder. Pressurized gas forces the sealing member and bladder outwardly of the canister. A stop prevents the sealing member from escaping the canister such that the sealing member creates a seal between itself and the canister at an outboard end of the canister. Pressurized gas is forced through a channel in the sealing member into the bladder to increase the displacement of a vessel.

A coolant union includes a seal assembly having a first seal member and a non-rotating second seal member. At least one of the annular sealing surfaces presented by the rotating seal member and the non-rotating seal member is chamfered such that the chamfered sealing surface presents a sealing surface width less than the width of the dimension of the other sealing surface. The fluid coolant union further includes a U-shaped annular secondary seal member having a chamfered portion structurally arranged to receive a triangular back-up ring which stores sufficient relative displacement of the floating seal assembly to create a separation between the first rotating seal and the second non-rotating seal members during the unpressurized condition.

An x-ray detector for use in the presence of magnetic resonance imaging equipment provides a two-stage transmission path of optical fiber followed by a non-ferromagnetic shielded cable to displace measurement electronics outside of the concentrated magnetic and radiofrequency fields of the MRI device. Conversion from light to an electrical signal for this transmission path is provided by circuitry held in a non-ferromagnetic Faraday cage. In this way accurate x-ray measurements may be made in radiotherapy equipment working in conjunction with magnetic resonance imaging for accurate dose placement.

A light-emitting apparatus, for enabling a beam of light to be projected on a desired target located a distance away to project the beam on the desired target without any or substantially any undesired movement. The apparatus may include a housing, a light generating device located within the housing and operable to generate a beam of light, a sensing device or devices for sensing an undesired action of the housing, a control circuit operable to provide a control signal corresponding to the sensed undesired action, and a drive device operable to counter act all or at least some of the undesired action of said housing in accordance with said control signal. The sensing device or devices may be one or more gyroscopes, accelerometers or other such devices.

A slider (40) is movable forward and back in a male housing (20) and is pushed back as a female housing (10) is connected with the male housing (20). A compression coil spring (S) accumulates a biasing force as the slider (40) is moved back. The male housing (20) has escaping grooves (37) for receiving locking projections (47) of the slider (40) and receiving portions (38) engageable with the locking projections (47) to prevent the slider (40) from coming out. Each locking projection (47) has a guiding surface (48a) for guiding the locking projection (47) over the receiving portion (38) when the slider (40) is assembled, and a restriction (49) for engaging an upper edge (37a) of the escaping groove (37) and restricting upward displacement of the slider (40). The restricting portions (49) bulge out more than the guiding surface (48a).

A balloon brachytherapy applicator has either a single or double chambers, with the capability of “blistering” outwardly at a specified area on one side of the balloon. This is useful to move sensitive tissue, such as skin or bone, farther away from a radiation source within a source guide inside the balloon. In one case a secondary balloon or secondary compartment is formed on the primary balloon, and is separately inflatable so as to allow blistering as desired when needed. In another form the balloon comprises a single chamber, primarily of inelastic or fairly rigidly elastic wall material, but with a “window” or area in which the balloon wall is elastic, or substantially more elastic than the main balloon wall, so that inflation of the balloon up to a certain point forms a substantially regular balloon shape (which may be approximately spherical), and the addition of further pressure will blister out the elastic area to increase the distance between the shaft and the sensitive tissue in a desired orientation of the balloon.

A contact sheet is provided including two insulative base sheets having a plurality of through-holes formed therethrough in an array pattern and a plurality of conductive contacts interposed between the insulative base sheets. Each contact includes a fixed part bonded to an end of a respective through-hole and an integral moving part contiguous with the fixed part. The moving part includes a contact portion formed as an elastic cantilever. Part of the moving part protrudes from one side of the base sheet inside the through-hole and the contact portion elastically extends from the other side of the base sheet. The total area of the through-hole and the fixed part of the contact is greater than a unit grid area formed by an arrangement of the terminals of an electronic device, and the length of the moving part, including the contact portion, substantially corresponds to the overall length of the through-hole.

Provided is a piezoelectric ceramic composition capable of being sintered at low temperatures and in a low-oxygen reductive atmosphere and capable of attaining a sufficient displacement even at high voltages of 1 kV / mm or more. The piezoelectric ceramic composition includes: a composite oxide, as a main constituent thereof, represented by the following composition formula; Cu and / or Ag, each as a first additive, Cu being included in a content α, in terms of Cu2O, falling within a range 0<α≦0.5% by mass and Ag being included in a content β, in terms of Ag2O, falling within a range 0<β≦0.4% by mass, in relation to the main constituent; wherein: composition formula: Pba[(Zn1 / 3Nb2 / 3)xTiyZrz]O3, where 0.96≦a≦1.03, 0.005≦x<0.05, 0.42≦y≦0.53, 0.45≦z≦0.56, and x+y+z=1.

The machine tool according to the with a pneumatic hammer mechanism comprises a motorized exciter, a guiding tube, and a piston-shaped beater. The piston-shaped beater is guided by an interior surface of the guiding tube along an operating axis and with the exciter encloses an air spring in a guiding tube. The beater shows a cup-shaped basic body with an open hollow space facing the exciter and an inset filling the hollow space. The basic body is made from a first material with a first density and the insert is made from a material with a second density, which is lower than the first density.