Patents Represented by Attorney John A. Robertson
  • Patent number: 3939806
    Abstract: An internal combustion engine in which heat is derived from the engine cooling system and/or the exhaust to heat a working fluid in a closed circulatory system. This heat transforms the working fluid into a gas which is delivered to a turbine which drives a generator. The generator delivers DC current to an electrolysis cell in which water is decomposed. The water is decomposed by the electric current into its oxygen and hydrogen components. The oxygen is passed to the air intake of the engine carburetors, while the hydrogen is conveyed to a carburetor therefor. Also included is a carburetor for conventional hydrocarbon fuels. The two carburetors are connected by linkage which may be operated either manually or by pressure to vary the ratio of the carbureted fuels which are delivered to the engine.
    Type: Grant
    Filed: April 1, 1974
    Date of Patent: February 24, 1976
    Inventor: Curtis E. Bradley
  • Patent number: 3939830
    Abstract: A manually operable device susceptible of use as a dechoker for removing an obstruction from the throat of a person, generating artificial respiration, or alleviating a heart failure by applying pressure from the lungs to the heart to compress the latter and cause some blood circulation. The device consists essentially of a face mask, a cylinder having an open end, and an end wall connected to the mask with the mask and end wall having aligned openings, a spring biased piston reciprocal in the cylinder with a rod connected thereto and a handle on the end of the rod, a frame on the cylinder presenting a crossbar spaced from the handle whereby the crossbar and handle may be grasped by the hand of an operator, a one-way check valve in the cylinder end wall, a removable detent for said valve, and a safety valve on said piston which opens when the suction effect of the piston reaches a safe limit.
    Type: Grant
    Filed: March 10, 1975
    Date of Patent: February 24, 1976
    Inventor: Harry da Costa
  • Patent number: 3938598
    Abstract: The present invention relates to belling apparatus for forming a bell shaped recess at the lower end of a pier bore and is concerned primarily with such apparatus in which spoil generated by cutting the recess is continuously removed by an auger.
    Type: Grant
    Filed: May 14, 1975
    Date of Patent: February 17, 1976
    Inventor: James P. Watts
  • Patent number: 3934927
    Abstract: A powered tilting lounger comprising a pedestal upstanding from a base that rests on a supporting surface and a lounger pivotally mounted on the upper end of the pedestal at the upper forward region of the lounger. The lounger consists of a chair including a seat and a back which are immovable relative to each other and which blend in together with a curved portion whereby it may be occupied by a person in a lounging position. An electric motor is mounted on the pedestal and operates a screw stem to pull the lounging chair structure into an upright position in which an occupant may readily remove himself from the lounger, or pushes it into reclining position.A leg rest is pivotally mounted on a horizontal axis at the forward edge of the seat portion and is moved into and out of a horizontal leg supporting position by an electric motor.
    Type: Grant
    Filed: October 29, 1974
    Date of Patent: January 27, 1976
    Assignee: Arizona Lounger Company
    Inventor: Henry Chanoch Zur