Abstract: Telephone apparatus mounted on an airplane food and beverage tray which is pivotable from a storage position nearly flush with the back of a seat of an airplane to a position of use, and includes a telephone handset that in a storage position in a tray recess is substantially flush with the surface of the tray that the recess opens through, the handset including a microphone portion and a combination credit card reader and speaker portion resiliently urged to an inclined condition relative to the microphone portion, latch mechanism to releasably retain the handset in the tray recess, a reel mounted in the tray that is resiliently retained in a datum position that the telephone cord connected to the handset is tightly wound and the second telephone cord that is electrically connected in the reel to the first cord is loosely wound, the second cord being connected to a terminal on a wall of the airplane which in turn is electrically connected through a computer to the primary telephone transmitter.

Abstract: Pyrolytic apparatus for recycling discarded rubber tires and the like that includes an auto clave shell that is closed at both ends to provide a closed vessel and has an interior refractory lining enclosing a reactor chamber and in conjunction with the vessel forms a gas-oil separation chamber surrounding the lining, heat exchangers within the lining, burners exterior of the vessel for conducting heat to the heat exchangers, a compressor for withdrawing pyrolytic gas given off by the pyrolytic decomposition of tires in the reactor chamber and conducting it to a recovered gas storage tank and a line for conducting oil given off by the decomposition of tires in the reactor chamber to an oil storage tank. The vessel walls are of a sufficiently lower temperature than that in the reactor chamber that the oil condenses on the vessel walls.

Abstract: An improved waste oil heater that includes a vaporizer pan having a mounting ring, a replaceable aluminum foil piece mounted on the ring to form the bottom of the pan and a member mounted on the ring to provide threads, a tool threadingly engageable with the threaded ring member for breaking the pan loose from the bottom wall of a burner pot and removing the ring with caked residue thereon for purposes of cleaning, the burner pot having a novel arrangement of apertures for flow of air into the pot, and solid state electronic control apparatus to control the feed of waste oil that automatically compensates for variations in viscosities and caloric values found in a variety of used oils and automatically discontinues the feed in the event the flame in the burner pot goes out.

Abstract: An oil heater particularly adapted to burning waste oil, having oil flow control apparatus providing substantially constant flow of oil to the vaporizer pan without regard to the viscosity of the oil being burned. The flow control apparatus utilizes a piston pump having relatively large input and output orifices, and is driven by a thermostatically controlled constant speed, reversible direction electric motor. Means are provided to transmit the power from the motor to the piston pump such that rotation of the motor in one direction provides a long pump stroke and high volume rate, whereas rotation of the motor in the opposite direction provides a short piston stroke and low volume rate of pumping to provide minimal oil flow to the vaporizer pan to allow combustion to be maintained in the heater.