Abstract: A heat sink is described for extracting heat from at least one electronic device, such as a microprocessor, either directly or indirectly (i.e. via liquid coolant). The heat sink includes a first thermal plate, a second thermal plate and a plurality of fins integral with and extending between both the first thermal plate and the second thermal plate.

Abstract: A refrigerant circuit (10) is formed by connecting, in the order given, a compressor (11), a four-way selector valve (12), an outdoor heat exchanger (13), an expansion valve (14), and an indoor heat exchanger (15) by a gas side pipe (31) and a liquid side pipe (32). The refrigerant circuit (10) is charged with a single refrigerant of R32 or with an R32/R125 mixed refrigerant whose R32 content is not less than 75% by weight. As a refrigeration oil, a synthetic oil is used, and such a refrigeration oil has an addition of an extreme pressure additive. When cooling rated capacity is not more than 5 kW, the liquid side pipe (32) is formed by use of a pipe whose inside diameter is less than 4.75 mm.

Abstract: An auger type ice making machine is provided with a control unit for causing a hot gas valve to open and for causing a heater disposed in the vicinity of ice compression passages to perform heating for a time period longer than the opening period of the hot gas valve, in accordance with a detection result from a rotation detecting sensor which detects rotation of a motor rotating an auger. The opening period of the hot gas valve and the heating period of the heater consist of, respectively: a basic opening period and a basic heating period, each corresponding to a time period during which the rpm of the auger is not higher than a threshold value, and an additional opening period and an additional heating period which are respectively added to the basic opening period and the basic heating period and begin at the time when the auger rpm exceeds the threshold value.

Abstract: In a vehicle air conditioner having front and rear air conditioning units, a refrigerant cycle includes front and rear evaporators for cooling air in a cooling mode, a hot-gas bypass passage through which hot-gas refrigerant discharged from a compressor flows into the front evaporator while bypassing a condenser in a heating mode, and a fixed throttle between the condenser and the front evaporator for decompressing refrigerant flowing from the condenser in the cooling mode. Further, a refrigerant outlet side of the fixed throttle and a refrigerant outlet side of the hot-gas bypass passage are joined to a refrigerant pipe, and a refrigerant outlet of the refrigerant pipe is connected to a refrigerant inlet of the front evaporator. Therefore, a refrigerant pipe structure of the refrigerant cycle can be made simple.

Abstract: A showcase includes air outlets provided at an upper rear end of a goods-storing room, and shelf ducts individually provided at lower faces of goods shelves. Cold air discharged from the air outlets is caused to descend along a rear plate of the goods-storing room, and then flows through the shelf ducts from rear ends towards front ends of the goods shelves while being partly discharged downward, whereby the cold air can be discharged downward from the shelf ducts to lower goods shelves, making it possible to efficiently cool goods placed on the goods shelves, even if no air curtain is formed in front of a showcase body. Accordingly, the visibility of upper goods shelves can be improved by using an upper face of the showcase formed by a transparent top plate.

Abstract: A non-stick coating, which inhibits frozen moisture accumulation, is applied to exterior exposed portions of heating and cooling systems where ice or other frozen moisture can accumulate and impair system design operational efficiencies; where heat exchange tubing and fins are downwardly sloped or angled; with an optional protective shell encasement which can be shaped to provide a vena contracta effect; with an optional electric fan to enhance airflow for heat exchange; with an optional electric vibrator to enhance inhibition of frozen moisture accumulation; with a downwardly sloped base to direct falling frozen moisture away from the heat exchange equipment; for use in conjunction with an air source heat pump system, an evaporative cooling system or a chiller, or as a supplement to a water-source heat pump system or to a direct expansion heat pump system; and for use with any other refrigerant-based heating system or cooling system.

Abstract: A portable air chiller for providing air conditioning in a variety of environmental circumstances. The portable air chiller includes an insulated container capable of effectively containing a endothermic substrate, an in-flow vent and out-flow vent positioned to communicate air flow from the exterior of the container to the interior of the container. A fan located in the out flow vent facilitates conditioned air movement out of the interior of the portable air chiller. The interior of the portable air chiller houses a endothermic substrate holder which practically traverses the length and width of the interior.

Abstract: A refrigeration device includes a refrigeration compartment with planar, horizontal top and bottom portions and vertical sidewall portion. The compartment has an elliptical cross-section and is supported by a vertical support member. The compartment includes at least two separate, planar shelving members positioned adjacent the compartment bottom portion, with each shelving member rotatable about a separate vertical axis. The compartment's sidewall portions each includes at least one door member providing access to the planar shelving members. The compartment's sidewall end portions includes a pair of door members that slide horizontally to provide access to the planar shelving members interior the refrigeration compartment. Most preferably, the door members are transparent. A refrigeration unit supplies cooling air to the refrigeration compartment for cooling items therein.

Abstract: An integrated condenser/receiver includes a multi-pass heat exchanger core, an elongated receiver housing, and a refrigerant conduit to direct refrigerant between the receiver housing and the multi-pass heat exchanger core. The heat exchanger core includes an elongate header extending along an axis, a plurality of tubes extending parallel to each other and transverse to the axis to direct a refrigerant through the core, with the tubes spaced along the header and having ends received therein to direct refrigerant to and from the header, and at least one baffle in the header to separate the header into a first portion that receives refrigerant from a first set of the tubes and a second portion that directs refrigerant to a second set of the tubes. Each of the set of tubes defines a refrigerant pass through the core. The receiver housing is mounted to the core, with the second set of tubes located between the receiver housing and the first set of tubes.

Abstract: An openwork prosthetic knit made in one piece, based on an arrangement formed by several sheets of yarns of a biocompatible polymer material, including a central band and two lateral bands on either side, respectively, of the central band, the elasticity of the knit in the central band being greater than the elasticity of the knit in each of the lateral bands at least two base sheets, a front sheet and a rear sheet, extending at least across the whole surface of the central band, the two base sheets being meshing sheets and defining a first weave, and at least two supplementary sheets, behind the rear base sheet, extending only across the respective surfaces of the lateral bands, the two supplementary sheets being sheets of partial weft and defining a second weave.

Abstract: This invention provides a knitted slide fastener, wherein at least a part of a base structure composing respective wales (W11 to W13) of a fastener element attaching portion (EF) of a fastener tape includes a ground chain knitting yarn composed of a single structure, and a partial needle loop of a fixing chain knitting yarn composes a double base structure while being interlaced only with the needle loop of the ground chain knitting yarn of the second wale (W12), the partial needle loop of a fixing chain knitting yarn to be formed on at least the second wale (W12) at a second row from the side nearest to a coupling head portion (EH) of the fastener element attaching portion (EF) among the three or more fixing chain knitting yarns of the fastener element attaching portion (EF), the knitted slide fastener being organized at a high speed with few kinds of stitches without an excess load on a needle, an element being solidly fixed.

Abstract: A security device secures an apparatus having a wall (1110) with a slot (1120). The security device includes first and second shafts. The shafts have arms (10) rotatable about their respective axis into and out of their respective unlocked positions. Each of the axes of the arms are different from each other. The shafts also have tangs (12) extending from the arms.

Abstract: A combination power cord and security system for a portable computing device. A security cable is provided which is constructed of a sheath of braided steel or other secure material. A lockable connector is mounted to one end of the security cable for connection to the portable computing device. A loop is provided at the other end for affixing the security cable to an anchor object. A power cable is formed integrally with the security cable. The power cable includes a power adaptor preferably mounted within the connector at one end of the security cable and a power plug at the other end for receiving electrical power.

Abstract: An incremental forming apparatus 100 holds a workpiece 10 onto a table 110. A spindle is disposed perpendicularly above table 110. For incremental forming, an incremental forming tool 150 is mounted on the spindle, and a form portion 20 is formed on the workpiece 10. When incremental forming is completed, the tool on the spindle is replaced with a straightening tool 200, and hot air is blown out from the straightening tool 200 to anneal the edge lines 20a and 20b of the form portion 20 and to eliminate process strain.

Abstract: A machine adapted for testing wear, wear-preventative and friction characteristics between a rotating specimen axially loaded against one or more non-rotated test specimens includes a load mechanism in the form of a low-friction, pneumatic diaphragm actuator, a load sensor in the load path to provide visual confirmation and feedback for automated load control, a linear motion sensor aligned with the load path for detection of specimen wear during the test, and a torque sensor for detection of the friction generated between the test specimens.

Abstract: A sensor for detecting particulate matter in an exhaust stream of an engine. The sensor may be a spark-plug-like device having an extended center electrode composed of a stainless steel or other material. The electrode may have a thin passivating layer formed on it. The layer may be grown or deposited on the electrode within the exhaust system. The sensor may detect charge transients indicative of particulate concentration in the exhaust stream. Information about particulate matter in the exhaust system along with other engine information may be processed for controlling or adjusting parameters of the engine to affect the particulate matter in the exhaust system.

Abstract: The density of at least one fluid in a pipe is determined using a pair of effective sound speeds a1eff and a2eff of the fluid/pipe system. The pair of effective sound speed measurements is taken at two sensing regions along the pipe wherein each of the sensing regions has a different cross sectional area compliance. The pair of effective sound speeds a1eff and a2eff is provided to signal processing logic 60, which determines the density of the fluid flowing in the pipe. The effective sound speeds a1eff and a2eff may be provided by a pair of sound speed meters positioned at the sensing regions wherein the sound speed meters utilize a spatial array of acoustic pressure sensors placed at predetermined axial locations along the pipe. The acoustic pressure sensors measure one-dimensional planar acoustic waves that are lower in frequency (and longer wavelength) signals than those used for ultrasonic flow meters, and thus is more tolerant to inhomogeneities in the flow.

Abstract: A compression cell for rock or soil core samples applies and restores lithostatic or overburden pressure to core samples extracted from wells drilled deep into the earth. A method of applying lithostatic pressure to a core sample is disclosed along with the apparatus which effects the application. The cell construction that maintains the litho static pressure and the process of utilizing the cell and sample under essentially deep earth ambient conditions are set forth.

Abstract: A method of determining at least one property of moving clothing of a machine for producing and/or treating a material web, in particular a paper or board web, which includes the following steps: arranging a nozzle opposite the surface of the moving clothing; producing a jet acting on the clothing by way of the nozzle contacting the moving clothing; measuring a variable representative of the flow through the nozzle; measuring a variable representative of the pressure of the jet at the nozzle outlet; determining the speed of the jet at the nozzle outlet from the nozzle flow and the free surface of the jet medium at the point of contact with the clothing; and determining the speed of the jet at the entry into the clothing from the speed of the jet at the nozzle outlet and the speed of the clothing.

Abstract: A system for characterizing rheological properties of granular material. A cylindrical measurement cup containing granular material is subject to a uniform vibration induced by a vibration exciter at a user-determined frequency. At the same time, a rotation or an oscillation of a rotating vane tool is performed within the powder and a response measured. Baffles are affixed to the inner wall of the measurement cup to prevent slippage of the granular material during measurement. An energy imparted to the system from the vibration exciter can be measured by an accelerometer coupled to the measurement cup. When sufficient vibrational energy is supplied to the system, a powder contained therein achieves a particle “temperature” sufficient such that the powder behaves as an ergodic system.

Abstract: A compact, portable, and expedient system for precisely testing the balance of balls used in sports and competitive games, which includes a test container slightly larger than the ball being tested. Preferably, the test container has several spaced-apart ball-centering guides, a fluid fill line, a removable cap, a sleeve attached to the cap and adapted for positioning a permanent ink marker relative to the golf ball being tested for consistent ball marking, and at least one associated packet of pre-measured ingredients for raising the specific gravity of the fluid used in the test container for balance testing. Optionally, a ball lifter can be used for removing a ball from the test container subsequent to balance testing. It is contemplated that an operator will be able to test multiple balls with a single packet of pre-mixed and pre-measured specific gravity increasing chemicals.

Abstract: A throttle opening degree detecting apparatus includes a resin gear, a permanent magnet, a yoke and a magnetic sensor. The resin gear is connected to a throttle shaft of a throttle valve and provided with a depressed boss portion in an axial position. The permanent magnet is mounted and secured along an inner peripheral surface of the boss portion in the resin gear without an adhesive. The yoke is mounted and secured along the inner peripheral surface of the boss portion in the resin gear without an adhesive. The magnetic sensor is arranged in a fixed side so as to oppose to the permanent magnet in a non-contact manner and outputs a signal indicating a rotation angle of the resin gear as an opening degree of the throttle valve. The resin gear is insert-molded with the yoke and the permanent magnet.

Abstract: A sensing apparatus is provided for use downhole, comprising a housing and sensing means with the housing containing a plurality of separable elements to which data acquired by the sensing means is transferred. The separable elements are releasable from the housing to convey the acquired data to surface. The separable elements have a spherical outer casing of around 1 to 10 cm diameter which surrounds a memory chip. The casing has a sealable aperture so that electrical connection to the chip can be established within the housing.

Abstract: Cavities are formed so as to extend from a rear surface side of a base material to a protective film, an electrically-insulating film is formed on a rear surface of the base material, wall surfaces of the cavities, and exposed surfaces of the protective film, and a heating resistor portion and a fluid temperature resistance thermometer portion are formed on portions of the electrically-insulating film on the exposed surfaces of the protective film inside the cavities. In addition, leader patterns are formed on the electrically-insulating film so as to extend from end portions of the heating resistor portion and the fluid temperature resistance thermometer portion along the wall surfaces of the cavities onto the rear surface of the base material.

Abstract: A method and processor for obtaining torques to be applied to joints of a leg of a biped walking system are provided. The method comprises the steps of obtaining moments acting around the joints of the leg, using the vertical component of the ground reaction force acting on the leg at the point of application of the ground reaction force, the vertical components of forces acting on the joints of the leg and a term of the acceleration of gravity and without using the horizontal components of the forces acting on the joints of the leg and a term of acceleration except the term of the acceleration of gravity and obtaining the torques to be applied to the joints of the leg, based on the moments acting around the joints of the leg. The vertical component of the ground reaction force acting on the leg, is obtained based on which leg or legs are in contact with the ground. The processor is configured to perform the above steps.

Abstract: A pressure sensor includes a diaphragm for sealing liquid. The diaphragm includes a plurality of convexities, which are disposed concentrically on the diaphragm. Each convexity has a circular arc cross-section in a radial direction and has a ring shape. The sensor has a configuration factor. The configuration factor is in a range between 2.5 and 3.5. The diaphragm of the sensor has excellent deformability so that detection error of the sensor is reduced.

Abstract: In a sensor device having a pressure detecting element and a temperature detecting element, a port portion has an opening portion from which a pressure medium is introduced to a pressure introduction passage of the port portion, and a lead wire connected to the temperature detecting element is disposed in the port portion to be fixed by a fixing portion at a tip end portion of the port portion. Furthermore, the temperature detecting element is disposed such that the pressure medium introduced from the opening portion passes the temperature detecting element and is conducted to the pressure detecting element through the pressure introduction passage. Because the temperature detecting element is disposed in the pressure introduction passage, a diameter of the port portion can be made small.

Abstract: A method and apparatus for measuring the vacuum gripping strength of a vacuum wand or robotic arm provides a pressure gauge and a conduit extending from the pressure gauge and terminating at an opening formed in a receiving surface. A vacuum wand head is positioned on the receiving surface such that the gripping surface of the vacuum wand forms a conterminous boundary with the receiving surface and the vacuum port of the vacuum wand is aligned over the opening formed in the receiving surface. The receiving surface replicates a wafer surface so that the same vacuum gripping strength as would be delivered to a wafer being gripped by the vacuum wand, is thereby sensed by the pressure gauge. Spring loaded positioning members act in conjunction with a clamp member and a mechanical stop position the vacuum wand head in the receiving area and over the opening and also to assure that the gripping surface of the vacuum wand head is flush against the surface of the receiving area.

Abstract: In a borehole logging tool, the flow of conductive fluid into or out of a wellbore at the wellbore wall is detected and measured with a sensor loop proximate the borehole inner wall. The sensor loop includes a series of contiguous sensors that act as electromagnetic flowmeters and provide fluid measurements covering the entire circumference of the sensor loop. The sensor loop includes an elastic element that forces the sensor loop outward to maintain pressure along the sensor loop circumference against the interior borehole wall. The sensor loop is designed to lie at a non-perpendicular angle to the wellbore axis, and mechanical arms press the top and bottom of the loop against the borehole inner wall.

Abstract: A circuit board, which includes one or more sensors, is integrated in a fluid control device, such as a valve manifold and a base plate. The fluid control device selectively directs a fluid used to control pneumatic or hydraulic equipment. The sensors are used to measure physical characteristics of the fluid, such as flow rate, pressure, and temperature. A flow sensor includes a paddle and a support member. The paddle is disposed at least partially in an orifice and is displaced in response to fluid flow. The support member positions the paddle in the orifice and includes a plurality of strain gauges. The strain gauges are disposed on only one side of the support member and are mechanically stressed in response to the paddle being displaced by the fluid flow.

Abstract: A tool is evaluated in response to a member of the tool being moved from a first position to a second position. In this evaluation, a first force is applied to the member. The first force is operable to move the member from the first position to the second position. In addition, a second force is sensed. This second force results from a resistance of the tool to the first force. Furthermore, it is determined whether the second force exceeds a predetermined value.

Abstract: A thermal anemometer or mass flow meter having temperature and flow velocity sensor elements is provided in which a thin film temperature sensor is provided in the heated sensor of the fluid velocity sensor element of the system. The thin-film sensor is captured at least partially within a spacer or interface member, the spacer being received within a housing. The thermal anemometer is constructed to offer sufficient precision and accuracy in its design to be suitable for sensitive scientific and industrial applications. This goal is achieved while using cost effective parts—as in the thin film temperature sensor(s)—in connection with a construction approach minimizing or eliminating gaps or other system configuration variability.

Abstract: An input shaft with plural drive gears and an output shaft with plural driven gears engaging the drive gears forms transmission gear trains. An input clutch transmitting power to the input shaft is between an engine and the input shaft, and a bypass clutch transmitting the power to the output shaft is between the input and output shafts. A changing mechanism changes any of the transmission gear trains in a power transmission state, a steering angle detecting means detects a steering angle of a wheel, and an input clutch control means engagement controls the input clutch. The input clutch control means inhibits a shifting operation in a state of disengaging the input clutch, by inhibiting output of a disengagement signal to the input clutch, in the case that the steering angle is more than an allowable value, and a shifting in a state of engaging no bypass clutch is judged.

Abstract: The present invention is concerned with a method for extracting selectively a metal from a metal mixture in the gaseous phase. The method comprises heating the metal mixture to vaporize the metal; condensing the metal contaminants present in the vapor; reacting any contaminants remaining in the vapor with a reagent to precipitate the remaining contaminants, and collecting the purified metal.

Abstract: A gear drive casing apparatus is disclosed for enclosing a gear drive used in a hygienic and sanitary environment. The gear drive casing apparatus includes a member having an external contoured surface, the member enclosing the gear drive. A further member has a further external contoured surface, the surface and the further surface cooperating with each other to define therebetween a smooth uninterrupted intersection such that the contoured surfaces and the intersection therebetween are easily cleaned. The surfaces and intersection present a self-draining configuration which inhibits the entrapment therein of any deleterious materials that would support the growth of bacteria, fungi, mold and other microorganisms.

Abstract: A tension applying device including a housing in which are mounted a primary shaft, a main shaft, a pinion shaft, and a load-member sheave shaft. A ratchet handle is associated with the primary shaft for imparting rotation thereto when pumped by a user. Rotation of the primary shaft causes rotation of the main shaft which, in turn, is imparted to the pinion shaft and to a load-member sheave mounted on the load-chain sheave shaft. Rotation of the load-member sheave then applies tension to the load member which, in turn, is connected to a desired application. The tension applying device further includes a plurality of drive mechanisms for achieving different mechanical advantages between the ratchet handle and the load-member sheave, thereby allowing a desired input force to attain a desired output force. Further, the load on the tension member may be used for automatically switching between the plurality of drive mechanisms and for a load limit lock-up.

Abstract: A control lever safety apparatus for preventing operation of a work apparatus when a control lever is operated or touched in an equipment started state has a safety lever and consol box tilting lever rotatably fixed to a first support in which a consol box is fixed, an operation switch assembly connected with the consol box tilting lever on a link movement method to support the safety lever in a horizontal direction and tilt the safety lever in a lower direction when the consol box tilting lever is rotated for thereby disconnecting power, and a latch assembly connected with the operation switch assembly on a link movement method to tilt the consol box in an upper direction when the consol box tilting lever is rotated for also thereby disconnecting the power.

Abstract: A cam mechanism for a folding cylinder or gripping cylinder of a printing machine have a cam disk assembly with two cam disks located adjacent to one another. The cam mechanism has good kinematic properties and is subject to low wear, the outer casing of the cam roller has two convex curvatures arranged adjacent to one another and running circumferentially around the cam roller, each curvature co-operating with one of the cam disks.

Abstract: A specialized tool for opening a particular type of container and lid configuration which is used in the food and beverage arts. The tool includes a handle section and an operating section. The operating section includes a jaw portion with a pointed lower lip and an open area. The operating section further includes a curved lower lid contacting area and at least one notch for contacting a rim on a container and providing a pivot point. The tool is useful for any person who may have difficulty in opening the particular container type described. A method of use and a specially designed support base are also described.

Abstract: A torquing device for assisting in the removal of a lid from a container. The device comprises a housing having a first engagement surface. Moveably mounted to the housing is an engagement member having a second engagement surface. The first and second engagement surfaces collectively define a slot which is sized and configured to accommodate at least a portion of the lid. Cooperatively engaged to the housing and to the engagement member is a biasing member for normally maintaining the engagement member in a release position. The engagement member is selectively moveable from the release position to a gripping position as a result of the rotation of the lid subsequent to the advancement thereof into the slot. The movement of the engagement member to the gripping position facilitates the rigid capture of the lid between the first and second engagement surfaces, thus allowing locking or unlocking torque to be applied thereto.

Abstract: An insert for use in a gripping assembly is disclosed. The insert includes a base member having a plurality of gripping teeth. The teeth are arranged in at least two substantially adjacent rows, where at least one row of teeth is offset or staggered longitudinally from an immediately adjacent row of teeth. When the teeth engage a cylindrical member, a resistance profile is created that is substantially continuous and does not oscillate over a length of the insert approaching 100% of the length of the entire insert.

Abstract: The ratchet wrench of this invention includes a jaw adjustment assembly connected with a jaw and gear assembly carried by a wrench head. Components of the jaw adjustment assembly include a scroll plate inside a cap operated by a jaw adjustment disk located above the cap. The jaw adjuster disk is connected with the scroll plate using a snap ring. Components of the jaw and gear assembly include a pair of jaws supported and guided inside a gear unit with the aid of parallel support rails. The support rails connect the rear unit with the jaws and support the jaw and gear assembly from a wrench head and handle. The two assemblies are pressed and held together by a splined inner surface of the cap interfacing with a splined outer surface of the gear unit. A typical pawl assembly provides the ratchet operation of the ratchet wrench.

Abstract: In a selective one-way wrench, a handle projects from an annular head. The annular head defines a first space and a second space communicated with the first space. A gear is rotationally put in the first space and includes a toothed external face. A direction controller is put in the second space and includes two pawls and a spring installed between the pawls each including a rod formed thereon and a toothed face. A driver is put rotationally in the second space and includes two fingers selective one of which contacts the rod of selective one of the pawls so as to bring the toothed face of the selected pawl into engagement with the toothed external face of the gear. A direction switch is installed rotationally on the annular head and operably connected with the driver.

Abstract: A ratcheting wrench includes a handle, a head extending from an end of the handle and having a hole communicated with a compartment in the end of the handle, a drive member rotatably mounted in the hole of the head, and a ratcheting mechanism. The drive member includes an inner periphery for securely holding a fastener-driving member, allowing joint rotation when the drive member is turned. The drive member further includes a flange formed on an end of an outer periphery thereof and located outside the head for manual rotation of the drive member. The ratcheting mechanism is mounted in the compartment of the handle and engaged with the teeth of the drive member, allowing the handle to selectively move in a ratcheting direction for tightening/loosening a fastener and in a free turning direction reverse to the ratcheting direction in which the fastener is not turned.

Abstract: A ratcheting tool includes a body and a gear disposed in the body. The gear defines a plurality of teeth on a circumference of the gear. A pawl is disposed in the body so that the pawl is movable with respect to the gear between a first position, in which the body transmits torque through the pawl in a first rotational direction, and a second position, in which the body transmits torque through the pawl in an opposite rotational direction. The pawl defines a plurality of teeth facing the gear and engages a reversing lever that urges the pawl between the first and second positions. The reversing lever comprises a handle portion and bottom portion that receives a clip spring. The detent urges the pawl between the first and second position by engaging the walls of a recess in the back of the pawl.

Abstract: A self-adjusting wrench having a handle and a jaw member rotationally attached thereto. A smoothly curved handle face opposes a planar face on the jaw member which adjusts for distance from the curved handle face by following a generally circular path around a pinned attachment of the jaw member to the handle. A spring or similar biasing device continuously urges the jaw member toward the handle thereby making the device self adjusting to the size of the object placed between the jaw member and the curved handle surface.

Abstract: An adjustable extension for driving tools has a telescoping body. The telescoping body has an outer member which may be driven by a conventional driver, such as a ratchet handle or by a powered driver. The outer member drives a longitudinally extending inner member which is telescoped within the outer member. The inner and outer members have detents or a rack and pawl to firmly position the members at the desired length. The inner and outer members may be spaced to prevent binding of the elements when subjected to heavy torque loads and have stops to limit the telescoping movement of the elements.

Abstract: A connection compensating device of multiangular wrench socket, including a main body and a connecting section. The main body is a cylindrical body. The outer circumference of the main body between two ends thereof is formed with several radially arranged flutes which extend along a circular axis by a certain length. The flutes have different cross-sectional areas. The connecting section includes a first tubular body fitted around the main body. The first tubular body is rotatable about the circular axis of the main body. The first tubular body is partially overlaid on the flutes. The geometric central axis of the profile of inner circumference of the first tubular body does not coincide with the circular axis of the main body. A user can selectively insert an L-shaped multiangular wrench into one of the flutes and the first tubular body.

Abstract: A fastener-driving tool assembly includes a fastener-driving member and a coupling device. The fastener-driving member includes a first end and a second end for driving a fastener. The first end of the fastener-driving member includes a polygonal opening. The coupling device includes a first member and a second member. The second member has a polygonal end securely engaged with the polygonal opening of the fastener-driving member. The first member includes an end for engaging with the other end of the second member. The other end of the first member includes a polygonal engaging hole for engaging with one of an extension rod, a handle, and a polygonal first end of a second member of a similarly constructed coupling device.

Abstract: A screwdriver is disclosed having a shaft with a screw holder. The screw holder is receivable in a recess in a screw head, and has a spring element which can be elastically deformed transverse to the longitudinal axis of the shaft. A portion of the spring element may be engaged with a bore in the shaft and the bore may penetrate the front end of the shaft. The elastic segment may be disposed in a groove parallel to the longitudinal axis of the shaft segment so that, in the unstressed state of the spring element, at least a portion of the elastic segment protrudes beyond the cross-sectional surface of the shaft segment to engage a surface of the screw head recess to thereby retain the screw on the shaft.