Abstract: An improved pressure transducer having a switching device operated in response to changes in fluid pressure is disclosed which incorporates a terminal support member having electrical contacts which are designed to be electrically bonded to and mechanically interlocked with electrical contacts provided within the housing. The invention also includes an improvement in the piston contacts for preventing scratching of the resistor board. A method is provided for permanently connecting terminals of the housing with the mating metal connector terminals once they have been properly calibrated and connecting the housing ground strap with the terminal support member.

Abstract: A radial type air-core gauge includes orthogonally positioned pairs of stator coils wound on independent coil forms spaced radially 90 degrees apart about a central cup of a gauge case. The cup houses a permanent magnet rotor which rotates about a shaft extending from a support bearing in a bottom surface of the cup to a hub of a dial pointer. Movement of the shaft causes a dial pointer to move over a dial face in response to changes of a balanced resultant field caused by variations of excitation signals applied to the stator coils.

Abstract: A fuel gauge damper circuit takes a variable resistance signal from a fuel tank sending unit, develops an input voltage proportional to the variable resistance and generates a filtered average of the input voltage at the fuel gauge damper output. The circuit damps undesirable large swings in the input voltage caused by "sloshing" in the fuel tank. Additionally, the damper circuit features power-up initialization apparatus for eliminating erroneous gauge indications which would otherwise occur upon the initiation of vehicle engine cranking. Also, a return to zero circuit is provided which drives the fuel gauge to zero after the engine is turned off in order to begin the gauge operation from zero when the engine is turned on.

Abstract: An oil pressure transducer with an improved composite base portion for mounting the transducer to a vehicle engine or the like to receive pressurized oil. The composite base has a skeletal component with a particularly effective configuration to permit sealing with an encircling molded elastomeric portion. In this manner, a highly leak resistant transducer base is produced having a metal portion for convenient threading into a threaded aperture of a vehicle engine and having an elastomeric portion adapted for ready attachment to a remaining portion of the transducer.

Abstract: An improved speedometer assembly of the electronic type which utilizes an electric motor mounted to a frame whereby the motor has an end flange portion supported against the frame by means of at least one swingable gate-like latches which are attached to a stationary support by an integral living hinge portion which provides a force against the edge of the flange.

Abstract: An air-core gauge containing interwoven cross-coil stator windings that permit interchanging the stator windings of equal radii and still achieve rotor meter movement that coincide directly with desired needle movement over a dial containing linear magnitude graduations.

Abstract: An improved electronic oil pressure transducer with a circuit board supporting a power transistor and with a metal heat sink attached to the transducer so that a portion thereof extends through an aperture in the transducer housing and into intimate contact with the power transistor to transfer heat from the transistor to the atmosphere.

Abstract: An improved pressure transducer to measure and indicate fluid pressure levels including a housing in which a piston assembly is movable in response to pressure changes, the housing being of a composite material of metal and plastic and having grooves therein, the piston having bosses formed thereon to be engaged within the grooves of the housing to prevent rotation of the piston. The transducer is also designed to facilitate grounding of an electrical contact assembly located within the housing. The external portion of the housing may be formed in a hexagonl shape to facilitate installation and removal of the unit.

Abstract: A board guide assembly (10) includes a printed wiring board (12) which is maintained at predetermined horizontal and vertical positions by a pair of guide mechanisms (42). The guide mechanism (42) includes a lower guide member (48) having a ramped upper surface to guide the board (12) upwards to the predetermined vertical position and an upper guide member (50) having a downwardly ramped lower surface to guide the board (12) downwardly to the predetermined vertical position between the upper and lower guide members (50, 48) and clamped therebetween. A deformable insert (46) is located between the upper and lower guide members (50, 48) to be inserted within a notch (22, 24) in the board (12). The insert (16) includes tabs (72, 74) extending therefrom on opposite sides and spaced apart along the insert (46) to provide force on the board (12) to position in the predetermined horizontal position.

Abstract: A fluid pressure transducer with an electrical switch structure therein including a conductor which is movable relative to fixed contacts as influenced by the force of internal spring forces whereas the relative positioning of a spring's end in the housing is adjustable after the transducer's assembly thereby effectively calibrating the switch's opening and closing characteristics relative to a predetermined fluid test pressure.

Abstract: A cross-coil winding system for forming woven stator coils for air-core gauges that have orthogonal coils with equal radii.

Abstract: A cross-coil winding system for forming woven stator coil windings for an air-core gauge that has orthogonal coils with equal radii. The system employs a bobbin positioner that moves a bobbin along a path in a manner that permits forming layers of interlaced windings about the bobbin.

Abstract: A quick change tool holder including two basic component assemblies, the first component assembly having a central boss portion and the second component assembly having a recess to receive the boss portion when the two component assemblies are attached together. A channel formed in the boss portion is engaged by a pivotally mounted lock bar member when the component assemblies are attached together. The lock bar is moved out of the channel which permits separation of one component assembly from the other by the action of air pressure against a piston.

Abstract: The present invention is an automated connection for a vehicle radio. A printed circuit board and electrical receptacle are disposed within a housing and secured thereto. An interface is secured to the housing for engagement with the receptacle to allow electrical connection between an external object and the receptacle.

Abstract: Accordingly, the present invention is an automated connection for a vehicle radio. The vehicle radio includes a housing having a top plate, bottom plate, front and rear plates and side plates. A printed circuit board is disposed within the housing and secured to the bottom plate. At least one electrical female connector is secured to the printed circuit board. The front plate has a plurality of apertures corresponding to the location of the female connector. A male connector electrically connected to an external object is secured to the housing and adapted to engage the female connector to allow electrical connection between the external object and the printed circuit board when the front plate is assembled to the housing.

Abstract: A connection assembly for allowing automated circuit connections between perpendicularly disposed first and second printed circuit boards. A receptacle with connection sockets is operably connected with the first circuit board and attached at a first predetermined position on the first circuit board. A plug member which has connection blades compatible with sockets of the receptacle is attached to the second circuit board. The plug has laterally spaced alignment blades which extend from it. The receptacle includes spaced arms which cooperate with the alignment blade for automatically orienting the plug such that the connection blades are in alignment with the receiving sockets when the first printed circuit board is brought together with the second printed circuit board during assembly. A method of automated connection assembly of perpendicularly disposed circuit boards is also disclosed.