Abstract: An improved cooling system for an internal combustion engine in an automotive vehicle which utilizes recirculating liquid coolant and provides an initial engine warm-up flow circuit extending: from a coolant pump, through cooling passages in the cylinder head, through a heat exchanger used to warm a passenger compartment, and back to the pump whereby a temperature responsive flow control valve or thermostat prohibits a flow of coolant from the cylinder head to cooling passages in the engine block which provides adequate cooling of the upper surfaces of the combustion chamber which are formed by the cylinder head while promoting a relatively rapid heating of the surfaces of the engine cylinders formed by the block.

Abstract: A cuff type air seal for sealing the overlap of partly telescoped parts that has an annular body of rubber or elastomer material having annular internal air sealing beads thereon which are adapted to fit on outer peripheral surfaces of the parts adjacent their overlap. Both parts have fixed outer diameters but the outer part may be a blow molded annular component having an internal diameter which varies so usually there is clearance and a potential air leak path at the overlap. An adjustable clamp encompasses the air seal and provides a constricting force so that the air sealing beads seal on the outer surfaces of the parts even though the clearance remains. The cuff is formed with a pocket that receives and retains a headed portion of the blow molded part when telescoped over the facing headed portion of the first part, particularly when the clamp is constricted.

Abstract: In a stamping press, a support assembly for a die set including a cylindrical roller mounted on spring means of sufficient strength so that the cylindrical roller normally supports a die set slightly above a press's bolster surface for easy movement thereover but yieldable in response to strong mounting forces generated between the die and the press to permit engagement of the die against the bolster surface.

Abstract: In a vehicle with an internal combustion engine and a fuel tank and having a fuel vapor recovery system to collect fuel vapors from the fuel tank as the tank is filled with liquid fuel which includes a canister to collect vapors, an air inletting apparatus is provided to supply a flow of dry purge air to the canister during a purge of vapors therefrom. The apparatus includes a water separator device with an automatic water drain to first separate water from air, second collect the water and third drain the water from the separator.

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: A retaining assembly for retaining a throttle and speed control cable to a cable mounting bracket. The retaining assembly includes a first end fitting on the speed control cable with spaced flanges which allow the first end fitting to slide into an aperture in the cable mounting bracket and prevent longitudinal movement of the first end fitting relative to the cable mounting bracket. The retaining assembly also includes a second end fitting on the throttle control cable with retaining clips which allow the second end fitting to snap into the aperture in the cable mounting bracket to prevent longitudinal movement of the second end fitting relative to the cable mounting bracket. The second end fitting also abuts the first end fitting to prevent the first end fitting from disengaging the cable mounting bracket.

Abstract: An improved fuel vapor purging system for a vehicle vapor storage canister associate with a positively charged engine such as a turbocharged or supercharged engine. An aspirator device is utilized to provide a pressure differential with respect to atmosphere so as to draw air through the canister for purging.

Abstract: A method of forming a circular opening in a layered sheet material to be subsequently bent which causes the layers to shift relative to one another in a direction normal to the bend including the steps of piercing the layers material with an oblong opening the spaced apart circular end configurations, then bending the layered material so that the opposite end portions in different layers are moved toward one another sufficiently so that a final circular opening is formed.

Abstract: In association with an internal combustion engine having an intake manifold with an inlet opening at one end, an air pump of the type including an impeller on a rotatable shaft and a discharge opening, with the air pump mounted directly to the manifold so that the manifold's inlet opening and the pump's discharge opening are registered thereby allowing air to flow from the pump directly into the manifold interior.

Abstract: For the inlet of a vehicle fuel tank, an improved cap having an outer gripping portion and an inner body portion for threading into tank's inlet. The inner and outer portions are connected by several axially extending, thin posts so that when the outer portion is impacted, axially or laterally, the portions are severed by breakage of the posts.

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: 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: 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 pointer bushing for securing an indicating element to an output shaft of an indicating instrument includes a base for spacing the pointer above the instrument face, a collar for connecting the base to the indicating element, and an S-shaped shaft gripping section for connecting the base to the output shaft. The output shaft connection includes a pair of posts which depend axially from the base, a reversely bent wing which extends from each arm, and a shaft gripping member forming the end of wing, the gripping members being in confronting relation to form a generally cylindrical, axially extending, radially expansible, socket for gripping the shaft whereby to fixedly hold the output shaft against relative rotative as well as axial movement.

Abstract: In association with a fuel tank of a vehicle with an inlet, an improved fuel filler assembly therein with first and second sealing means for isolating the interior of the fuel tank from the atmosphere and a vapor storage canister before a refill of the tank and subsequently from the atmosphere but not the storage canister during a refill operation while preventing passage of liquid to the storage canister.

Abstract: In an automobile air conditioning system, an improved orifice type expansion device includes a movable piston which supports an orifice tube so that the piston is moved in response to higher than normal condenser pressure towards a stationary plug member so that the resistance to flow is increased and thus a desirable low evaporator pressure and temperature is maintained.

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: In an internal combustion engine having an engine block and a cylinder head, a pair of axially offset lubricating oil passsages in the block and the head respectively positioned so that there is no direct axial communication therebetween and with a gasket therebetween with openings corresponding to the pair of passages and a restricted communicating structure therebetween for limiting the flow of oil from the block to the head.

Abstract: An improved air directing outlet assembly particularly for an automobile air conditioning system including open front ended and rear ended frame and barrel members. The frame surrounds the barrel which is supported thereby for pivotal movements as guided by engagement of several pins in corresponding elongated apertures.

Abstract: A tool for visually indicating the relative crankshaft and piston position at top dead center for an internal combustion engine of the type having a threaded opening for a spark plug positioned above the piston's top surface. The tool consists of a base which has threads for attachment in the spark plug opening, an outer tubular member supported by the base to allow it to slide upward through the base in response to urging of the top of the piston moving toward the base but otherwise being frictionally secured to the base, and an inner member equal in the length dimension to the outer member and supported by the outer member in a manner allowing it to initially move upward with the outer tubular member as urged by the piston but also allowing it to move with the piston away from the base and the outer member whereby changes in the alignment of the exterior ends of the members indicates piston movement past top dead center.