56results about How to "Minimize torque" patented technology

A fully automatic bar code symbol reading system comprising an automatic (i.e., triggerless) portable bar code symbol reading device with an omni-directional laser scanning engine mounted within the head portion of its hand-supportable housing, and an associated base unit positioned within the data transmission range thereof without a physical wiring connection thereto.

A rotary valve is disclosed having a rotor and stator that utilizes at least one compression spring to provide contact between the rotor and stator. The spring(s) is configured to oppose the pressure forces that urge the rotors and stators apart and reduce the amount of torque necessary to turn the rotors in the valve while preventing leakage from between the rotor and stator. The spring(s) may be positioned within the valve by a spring locating features.

A rotary valve is disclosed having a rotor and stator that utilizes at least one compression spring to provide contact between the rotor and stator. The spring(s) is configured to oppose the pressure forces that urge the rotors and stators apart and reduce the amount of torque necessary to turn the rotors in the valve while preventing leakage from between the rotor and stator. The spring(s) may be positioned within the valve by a spring locating features.

An automatic bar code symbol reading system having an automatic laser scanning device which can be used at a point-of-sale (POS) station as either a portable hand-supported laser scanner when operated in its automatic hands-on mode of operation, or as a stationary laser projection scanner when operated in its automatic hands-free mode of operation. The bar code symbol reading system provides a collimated scanning pattern projected from the hand-supportable device about a projection axis. The collimated scanning pattern intersects the projection axis within a narrowly confined scanning volume so that bar code symbols disposed within this scanning volume can be read omnidirectionally, while inadvertent scanning of bar code symbols outside of the scanning volume is prevented.

A stabilized backpack comprises a hip suspension and a shoulder suspension. The hip suspension comprises vertical support rods pivotally attached to the hip belt and pack frame to allow motion of the wearer's hips without causing varying forces on the pack. The shoulder suspension comprises pulleys and cords attaching the shoulder straps to the pack so that the motion of the wearer's shoulders does not cause varying forces on the pack. The net effect is that a person can run with the pack, with heavy load, in rough terrain, with the pack staying relatively stable.

A stand system tilts a monitor up or down. The stand system can move the monitor manually or through one or more motors. The stand system has a base and a neck. The an arc configuration that slides on one or more rollers. The base may be engaged with a mechanism that slides the base along the rollers following the arc configuration of the base. The gear mechanism may be coupled to a motor to slide the base on the roller through a motorized action.

A linear oscillating actuator system which is capable of canceling out the stator vibrations for driving a load with a minimum of vibrations. The system includes an oscillator carrying a permanent magnet as well as an output shaft for connection to the load. A stator assembly is incorporated within a housing and is configured to movably support the oscillator and to carry an electromagnet. The electromagnet generates a magnetic field which interacts with the permanent magnet to reciprocate the oscillator relative to the stator assembly in a linear path. A balancer is added to the system for canceling out undesired stator vibrations. The balancer are commonly supported to the stator assembly to be driven thereby in parallel with the oscillator. The balancer is configured to have a mass generally equal to that of the oscillator and to be devoid of any output member. Thus, the oscillator and the balancer are driven in a counter reciprocating manner, thereby keeping the stator assembly free from counter-vibrations and therefore driving the output shaft with a maximum output power.

A single, right-angled end-block is claimed for rotatably carrying a target in a sputtering apparatus. The end-block comprises all necessary means to drive, energise, bear and seal (coolant and gas) the target in the sputtering apparatus from the outside through a single opening in a wall or door. The right-angled end-block rotates the target around an axis of rotation that is parallel to the wall on which the target is mounted. By preference the end-block is situated below the target in order to allow easy drainage of the coolant.

A fully automatic bar code symbol reading system having an automatic (i.e., triggerless) portable bar code symbol reading device with an omnidirectional projection laser scanning engine mounted within the head portion of its hand-supportable housing, and an associated base unit positioned within the data transmission range thereof without a physical wiring connection thereto. The hand-supportable bar code symbol reading device produces a narrowly confined scanning volume for omnidirectional scanning of code symbols presented therein, while preventing unintentional scanning of code symbols on nearby objects located outside thereof.

A wall hook includes an inserting head defining a rotational axis, and a levering handle. The inserting head has a front penetrating tip adapted for rotatably inserting into a wall surface of the wall and a rear fulcrum end rearwardly extended from the penetrating tip along the rotational axis. The levering handle has a transverse arm integrally and transversely extended from the fulcrum end of the inserting head to substantially prolong a torque distance along the transverse arm with respect to the rotational axis, and a controlling arm integrally extended from the transverse arm in such a manner that when the levering handle is rotated, the inserting head is driven to rotate for rotatably penetrating into the wall so as to minimize a torque required to directly apply at the inserting head.

A starting system and method for starting a salient-poled-rotor electric motor having a stator with a plurality of spaced salient poles, a plurality of field coils of unchanging polarity, and a plurality of armature coils, wherein each field coil of the plurality of field coils at least partially overlaps an armature coil of the plurality of armature coils, and wherein variable excitement of the armature coils alternately creates a magnetic pole force in every other pole of the plurality of spaced salient poles of the stator. In such motors, the stator has a first position, wherein the rotor is in stasis with respect to the stator and torque between the rotor and the stator is substantially minimized, and a second position, wherein torque between the rotor and the stator is substantially maximized. A drive circuit provides current to the field coils and the armature coils. A start circuit is provided for regulating the drive circuit to vibrate the rotor to the second position. A current source is connectable to the drive circuit for variably exciting the armature coils to produce substantially continuous rotation of the rotor. A switch is provided for electrically engaging the start circuit with the drive circuit while the rotor moves from the first position to the second position, and for electrically engaging the current source with the drive circuit when the rotor reaches the second position.

A reciprocating drive system and apparatus for scanning a workpiece through an ion beam are provided, wherein a motor comprising a rotor and stator operable to individually rotate about a first axis is operable to reciprocally translate the workpiece with respect to the ion beam. A shaft rotatably driven by the rotor extends along the first axis, and a scan arm is operably coupled to the shaft, wherein the scan arm is operable to support the workpiece thereon. Cyclical counter rotations of the shaft by the motor are operable to rotate the scan arm, therein scanning the workpiece through the ion beam along a first scan path, wherein the stator acts as a reaction mass to the rotation of the rotor. A controller is further operable to control an electromagnetic force between the rotor and the stator, therein generally determining a rotational position of the rotor and the stator.

An optical scanner comprising an automatic (i.e., triggerless) portable bar code symbol reading device with an omnidirectional scanning engine mounted within the head portion of its housing, and adapted for use with an associated base unit. The bar code symbol reading device produces a confined scanning volume for omnidirectional scanning of code symbols presented therein, while preventing unintentional scanning of code symbols on nearby objects located outside of the confined scanning volume.

Durability of a planetary gear set can be enhanced and noise can be reduced by utilizing a power transmitting apparatus for a hybrid vehicle that supports a planetary gear set in an axial direction and a perpendicular direction. In addition, because a parking gear is disposed on a second shaft, torque can be minimized when the vehicle is parked on a slanted road.

A farrier's tool and a method of using the tool for preparing the hoof of a horse to receive a shoe. The tool is, in one aspect, a goniometer used for determining the angle of heel-toe taper when preparing a horse's hoof to receive a shoe. After the angle between the anterior surface of the first phalanx of the foot and the anterior surface of the hoof is determined, the ground-facing surface of the hoof is beveled by means of a trimming tool at an angle determined by the goniometer to reduce uneven pressure on the underlying coffin bone and to balance the tension on the tendons and ligaments in the horse's foot, particularly during locomotion. The method provides, inter alia, means for accurately aligning the hoof capsule with the coffin bone in the hoof.

A stabilized backpack comprises a hip suspension and a shoulder suspension. The hip suspension comprises vertical support rods pivotally attached to the hip belt and pack frame to allow motion of the wearer's hips without causing varying forces on the pack. The shoulder suspension comprises pulleys and cords attaching the shoulder straps to the pack so that the motion of the wearer's shoulders does not cause varying forces on the pack. The net effect is that a person can run with the pack, with heavy load, in rough terrain, with the pack staying relatively stable.

A method and a device for operating a hybrid vehicle, which ascertain the torque necessary for starting the non-operating internal combustion engine, and this torque is reserved by an additional drive unit. The torque necessary for starting the non-operating internal combustion engine is minimized by appropriately adjusting parameters of the internal combustion engine system.

The embodiments described herein relate to a sleeve piston for operating the bolt carrier of an auto-loading firearm. The sleeve piston can comprise a monolithic sleeve piston or it can comprise two or more sleeve-piston parts, thereby evenly distributing the reciprocating mass of an auto-loading firearm about its barrel and minimizing muzzle rise when fired. The sleeve piston can be coupled to the bolt carrier by two or more operating rods, thereby reducing the tipping force experienced by the bolt carrier during firearm operation. The sleeve piston can reciprocate in or on a gas block coupled to the barrel, and the sleeve piston can be removed by sliding it forward and off the end of the barrel. The embodiments of the present invention can thus provide a balanced and compact operating mechanism that is ideally suited for rifles, carbines, and personal-defense weapons.

To provide a drive control system for a working vehicle, which can prevent engine stall with certainty even when a large load suddenly acts on a vehicle-mounted engine and which is also excellent in environment friendly performance.When a vehicle speed of a wheel loader (1) is determined to be not higher than a reference value (Yes) in step S4 and a forward / reverse command means (40) is determined to have been switchingly operated (Yes) in step S5, the routine advances to step S6 where an increment ΔN of engine speed according to an engine load factor is determined. In step S7, the increment ΔN of engine speed is then added to a target engine speed Na corresponding to a depression stroke of an accelerator pedal (38), the thus-determined Na=Na+ΔN is set as a new target engine speed Na, and a target engine speed command i1 is sent to an engine controller (37).

A method for reciprocally transporting a workpiece on a scan arm through an ion beam is provided, wherein the scan arm is operably coupled to a motor comprising a rotor and stator that are individually rotatable about a first axis. An electromagnetic force applied between the rotor and stator rotates the rotor about the first axis and translates the workpiece through the ion beam along a first scan path. A position of the workpiece is sensed and the electromagnetic force between the rotor and stator is controlled in order to reverse the direction of motion of the workpiece along the first scan path, and wherein the control is based, at least in part, on the sensed position of the workpiece. The stator further rotates about the first axis in reaction to the rotation of the rotor, particularly in the reversal of direction of motion of the workpiece, thus acting as a reaction mass to the rotation of one or more of the rotor, scan arm, and workpiece.

A golf club grip system having grips that have grip diameters ranging from 1.0 inches (25.4 mm) to 1.2 inches (30.5 mm). Additionally, each golf club grip may include an outer wrap and an inner layer. The outer wrap is substantially thinner than the inner layer and consists predominantly of polyurethane and felt. Specifically, in one exemplary embodiment, the outer wrap consists of two separate layers of polyurethane, a layer of felt, and two thin strips of adhesive tape. By utilizing these materials, the outer wrap provides a high traction, i.e., slip resistant, surface with improved shock and vibration dampening characteristics. Additionally, by utilizing the combination of the outer wrap and the inner layer, the grip provides shock absorption with substantially increased resistant to torsional forces.

Apparatus for a disk drive having an actuator controlled suspension in operative association with a disk. The suspension mounting plane datum plane and suspension datum plane diverge at an acute angle. When the suspension is subjected to use conditions including seek operations and disk-induced turbulent wind flow conditions and induce sway forces and torsion forces that produce lateral off-track motions of the slider gap, the extension of the suspension datum plane substantially through the slider center of mass minimizes sway forces, and lateral off track motion of the slider gap is minimized. Error from torsion forces is minimized by having the dimple center of curvature coincide with a horizontal plane including the slider gap and having the dimple longitudinal axis extend through the slider center of mass, so that both sway and torsion force sources of track misregistration are addressed.

A farrier's tool and a method of using the tool for preparing the hoof of a horse to receive a shoe. The tool is, in one aspect, a goniometer used for determining the angle of heel-toe taper when preparing a horse's hoof to receive a shoe. After the angle between the anterior surface of the first phalanx of the foot and the anterior surface of the hoof is determined, the ground-facing surface of the hoof is beveled by means of a trimming tool at an angle determined by the goniometer to reduce uneven pressure on the underlying coffin bone and to balance the tension on the tendons and ligaments in the horse's foot, particularly during locomotion. The method provides, inter alia, means for accurately aligning the hoof capsule with the coffin bone in the hoof.

A position and adjustment device for a laser module has a cylindrical body having a bore therein, the body having a first plurality of openings and a second plurality of openings that are spaced apart around the body. A laser module is positioned inside the bore. The position and adjustment device also has a plurality of bolts, with each bolt extending through a corresponding one of the first openings into the bore, each bolt having an inner end and a rotating ball provided at the inner end and providing a rolling contact with the external surface of the laser module. The position and adjustment device also has a plurality of biased pins, with each pin extending through a corresponding one of the second plurality of openings into the bore, each pin having a curved inner end that provides a point contact with the external surface of the laser module.

A push plate that includes springs in the form of cantilever flexures and an inspection window is disclosed. The push plate provides a known, uniform, down force and minimal torque to a package to be tested. The cantilevers have a known, calculable down force producing stiffness. The window provides for viewing of the package during testing.

An apparatus for cutting a precision dado in a board includes a base member. The base member includes an adjustable clamp that surrounds a guide fence and which can move along the length of the fence. The fence is clamped to the board where desired for each dado. The base member includes a central area that is adapted to receive a dado guide bushing which is attached to a router having a router bit. The central area allows limited movement of the bushing and the router bit in the dado guide perpendicular to the fence. This allows the router bit, which is smaller than the width of the dado, to fully cut the dado in two passes. Setup of the dado guide to accommodate the width of a shelf to be inserted in the dado is described as is the precise location of the dado guide with respect to the board.

An implement to groom a pet's coat and remove shed hair by means of a modulated array of combs. The comb array graduates from coarse to fine, with respect to tine to tine spacing, row to row spacing, and tine diameter, in a direction opposed to the grooming motion. The tines, which are aligned to a curved surface, also have modulated length, row by row, from long to short, so that the combs collect shed hair from the base of, and throughout, the pet's coat. The aforementioned modulation enables the user to detangle and deshed a pet's coat using this single implement. There is also an integral self-cleaning mechanism, which amplifies the user's input, to produce a large cleaning stroke to remove collected hair, including the coarse region with long tines. The cleaning cross-bar sub-assembly has a minimal form factor, in keeping with the implement's lightweight and ergonomic design.

A device for fastening a marker device to a bone, comprising a fixing element including a mounting for the marker device, comprising a spring designed to contact an abutment for exerting a force between the abutment and the fixing element in the direction of the bone.