Abstract: An oil cooler for use in a motor vehicle radiator tank is made of a plurality of plate assemblies, each comprising a pair of plate shells. Each plate shell has opposite upstanding walls, and the plate shells are nested so that the upstanding walls are in contact and sealed along their peripheries. The plate shells have deformed walls forming serpentine passageways in thermally conductive communication with the plate shells to transfer heat from the oil, and deformed projections extending into the interior space in passageways cause turbulence in the oil. Fittings for passage of oil into and out of the oil cooler have a flange with a groove and an elastomeric gasket with an elliptical cross section to seal the fittings to the tank wall opening. The oil cooler is mounted within the tank so that it is located approximately equidistant from the front and rear tank walls.

Abstract: A system of aligning and connecting a threaded male fastener to a correspondingly threaded female fastener has a nut having a plurality of upturned sides and a central axis aligned with that of one of the male or female fastener. The system includes a guide sleeve having a cylindrical internal surface and an end sized to fit within the upturned sides of the nut, and a guide member having a cylindrical external surface and a central axis aligned with that of the other of the male or female fastener. The guide member cylindrical external surface is slidingly and rotatably movable with respect to the guide sleeve cylindrical internal surface. The guide sleeve end fits within the upturned sides of the nut and the guide member is adapted to be slid into the guide sleeve, such that the threaded male and female fasteners are coaxially aligned and contacted. The guide member is rotated with respect to the guide sleeve so that threads of the male fastener engage threads of the female fastener.

Abstract: A system for aligning and connecting a threaded male fastener for securing an oil line to a correspondingly threaded female fastener at the inlet of an oil cooler in a radiator tank has a guide sleeve having a cylindrical internal surface and a central axis adapted to be aligned with a central axis of the female fastener, and a guide member having a cylindrical external surface and a central axis adapted to be aligned with a central axis of the other of the male fastener. The guide member cylindrical external surface is slidingly and rotatably movable with respect to the guide sleeve cylindrical internal surface. The guide member is adapted to be slid into the guide sleeve, such that the threaded male and female fasteners may be coaxially aligned and contacted, and the guide member may be rotated with respect to the guide sleeve so that threads of the male fastener engage threads of the female fastener.

Abstract: A radiator and oil cooler combination for an internal combustion engine includes a concentric type oil cooler in the radiator inlet or outlet tank. A baffle directs coolant flow around the oil cooler. In one embodiment, the baffle is between an inner surface of the outlet radiator tank housing and the outer wall of the oil cooler forming a barrier substantially filling the space therebetween. The baffle is located away from the ends of the oil cooler, intermediate the length thereof, and intermediate the length of the outlet radiator tank containing the tube openings. In another embodiment, the baffle is between and spaced from the oil cooler and the radiator core tube openings. The baffle extends along at least a portion of the length of the outlet radiator tank containing the tube openings and overlaps at least a portion of the length of the oil cooler. In a further embodiment, the baffle is located in the radiator tank near one end of the oil cooler and has an opening spaced from the oil cooler outer wall.

Abstract: An electro-optical switching system includes a plurality of visually activated switches, one for each one of a plurality of different electronic apparatus, each including electromagnetic radiation sensors having a detection surface and each controlling the application of electrical power to the respective equipment in response to an impinging electromagnetic beam incident at the detection surface for a determined time interval. A pulsed electromagnetic beam is provided by a transmitter included within an electromagnetic activating source held, or disposed on a portion of the anatomy of, a human operator who aligns the beam with the detection surface on the selected one of the switches with the aid of a visual reticle image provided by a reticle generator included in the activating source and boresighted with the transmitter.