Patents by Inventor George C. Kennedy

George C. Kennedy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8186263
    Abstract: Apparatus and method for securing a cylinder liner to a pumping module. A first part of an assembly housing pistons is fastened to a pumping module and a second part of the assembly is brought against the first so that the pistons act on tensioning plates which each have a stud rod extending therefrom through the assembly at an end distal to the pumping module. Each rod has a first portion substantially surrounded in an elastomeric member and a second portion threaded to receive a nut. The rods are passed through a clamping ring on the cylinder liner and the nut is attached to the rod. Actuating the pistons causes initial compression of the elastomeric member by the tension plate and allows tightening of the nut toward the pumping module. Release of the pistons then causes expansion of the elastomeric member to urge the cylinder liner towards the pumping module.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: May 29, 2012
    Assignee: Spicket Valves & Pumps Ltd.
    Inventor: George C. Kennedy
  • Publication number: 20100236402
    Abstract: Apparatus and method for securing a cylinder liner to a pumping module. A first part of an assembly housing pistons is fastened to a pumping module and a second part of the assembly is brought against the first so that the pistons act on tensioning plates which each have a stud rod extending therefrom through the assembly at an end distal to the pumping module. Each rod has a first portion substantially surrounded in an elastomeric member and a second portion threaded to receive a nut. The rods are passed through a clamping ring on the cylinder liner and the nut is attached to the rod. Actuating the pistons causes initial compression of the elastomeric member by the tension plate and allows tightening of the nut toward the pumping module. Release of the pistons then causes expansion of the elastomeric member to urge the cylinder liner towards the pumping module.
    Type: Application
    Filed: June 2, 2010
    Publication date: September 23, 2010
    Applicant: SPICKET VALVES AND PUMPS LIMITED
    Inventor: George C. Kennedy
  • Patent number: 4197066
    Abstract: A piston type system for forming industrial diamonds is provided with a pressure vessel which includes a tungsten carbide member having a central opening which has a tapered mouth at one end, and which is lined with a salt bushing. A charge including invar and graphite to be converted to diamond is inserted within the pressure chamber inside the salt bushing. An end load plate has a central opening of substantially the same diameter as the opening in the salt bushing and has a tapered flange which fits into the tapered mouth in the tungsten carbide pressure vessel. A tungsten carbide piston which has a diameter about 0.003 inch less than the diameter of the opening in the end plate, and which has a lead gasket between its surface and that of the opening in the end plate, is forced through the end plate and applies high pressure at high temperatures to the charge, thereby converting the graphite to diamond after the passage of a suitable period of time.
    Type: Grant
    Filed: February 2, 1979
    Date of Patent: April 8, 1980
    Assignee: High Pressure Technology, Inc.
    Inventor: George C. Kennedy
  • Patent number: 4119708
    Abstract: A high pressure, high temperature, piston-cylinder type apparatus utilizing a soft, ductile, electrically conductive material as a driver element to transmit pressure from the piston to a charge in the cylinder. The driver element, preferably made of lead, or the like, is placed in the pressure cylinder between an advanceable piston and a stationary sleeve of insulating material surrounding an electrically heatable core of charge material. As the piston is advanced, the lead driver element deforms into the end of the sleeve of insulating material and maintains pressure on the core without deformation of the sleeve of insulating material.
    Type: Grant
    Filed: September 29, 1976
    Date of Patent: October 10, 1978
    Assignee: Kennametal Inc.
    Inventor: George C. Kennedy
  • Patent number: 4118161
    Abstract: A high pressure, high temperature, piston-cylinder type apparatus which utilizes a soft, ductile, electrically conductive material as a driver element to transmit pressure from the piston to a charge in the cylinder. The driver element, preferably made of zinc or lead, or the like is placed in the pressure cylinder between an advanceable piston and a stationary sleeve of insulating material surrounding an electrically heatable core of charge material. As the piston is advanced, the driver element deforms into the end of the sleeve of insulating material and maintains pressure on the core with minimal deformation of the sleeve of insulating material.
    Type: Grant
    Filed: May 20, 1977
    Date of Patent: October 3, 1978
    Assignee: Kennametal Inc.
    Inventor: George C. Kennedy
  • Patent number: RE37483
    Abstract: A device for securing a cylinder liner (3) to a respective pumping module (2) in a reciprocating pump has a set of arrangements each with a hydraulically activated piston (8), a rod (11) of which is adapted to receive a nut (12), the retraction of which forcibly compels in attraction the cylinder liner (3) and the pumping (2).
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: December 25, 2001
    Assignee: P-Quip Limited
    Inventors: George C. Kennedy, Stephen J. Flindall