Lost Motion Drive From Inlet To Exhaust Valve Patents (Class 91/267)
  • Patent number: 4610381
    Abstract: A drywall tool provides tactile and audible feedback to the user, as a fastener is driven by frequent multiple blows, to indicate when the fastener is properly driven, and the drywall dimpled, without tearing the paper facing of the drywall. Dimpling apparatus and a firing valve for controlling the multiple blows are described. A cam is provided to withdraw the magazine follower from the last fastener in a strip to avoid jamming or damage by a descending driver. Tool apparatus permits use of lightweight, synthetic parts.
    Type: Grant
    Filed: August 30, 1984
    Date of Patent: September 9, 1986
    Assignee: Senco Products, Inc.
    Inventors: Francis J. Kramer, Lester D. Park, Donald J. Massari, Jr.
  • Patent number: 4390035
    Abstract: A water-type spray application system employing a hydraulically-operated motor which is operated by the source of supply of the water or base carrier liquid and where the hydraulic motor dependently controls the amount of chemicals injected into the water system for application to lawns. The dependent chemical applications may be independently controlled and independently monitored as to the relationship of injection to the flow of water. The hydraulic motor employs a reciprocating piston and valving arrangement wherein the valving system operates to reverse the pressure differential across the piston upon reaching the end of the piston stroke so that a reciprocating action is obtained of a piston rod. The dependent metering systems involve an adjustable stroke mechanism which draws in liquids by suction and discharges fluids by pressure.
    Type: Grant
    Filed: April 22, 1981
    Date of Patent: June 28, 1983
    Inventor: Raymond G. Hill
  • Patent number: 4288406
    Abstract: A system for recovering energy from a pressured reactor comprising a reactor, a reciprocating engine connected to the reactor to receive reaction effluent from said reactor thereby driving the pistons of the reciprocating engine by expansion of the effluent and recovery apparatus downstream of the engine for recovering products from the effluent.The expanding reactor effluent is used to drive the pistons which are especially valved in conjunction with the effluent inlet port in the cylinder to facilitate handling the effluents, the pistons in turn operate a crankshaft through a crosshead which may power compressors or operate a generator to produce electricity. It is reasonable to expect recovery in a directly usable form, such as electricity, of over 25% of the energy theoretically available in the pressured reactor effluent in some cases.
    Type: Grant
    Filed: August 29, 1979
    Date of Patent: September 8, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventor: J. Robert Sims, Jr.