Patents by Inventor John Lefavour

John Lefavour 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).

  • Publication number: 20070261467
    Abstract: An electrical connector crimp tool including a first crimp jaw section; and a second crimp jaw section pivotably connected to the first crimp jaw section. The second crimp jaw section includes a center crimp force axis directed towards an electrical connector during crimping. The second crimp jaw section includes a crimp groove for directly contacting the electrical connector during crimping. The crimp groove has a center crimp path axis which is angled relative to the center crimp force axis.
    Type: Application
    Filed: May 15, 2006
    Publication date: November 15, 2007
    Inventors: John Lefavour, Robert Poirier, Thomas Faucher, Christopher Chadbourne, Armand Montminy
  • Publication number: 20070256554
    Abstract: A hydraulic tool including a motor; a hydraulic pump comprising only one reciprocating piston pump member; and a transmission connecting the motor to the hydraulic pump. The transmission includes a wobble plate and at least one spring. The wobble plate includes a front end pivotably connected to a frame of the pump. A rear end of the piston pump member is located against the front end of the wobble plate. The spring is spaced from the piston pump member and applies a biasing force against the front end of the wobble plate.
    Type: Application
    Filed: May 4, 2006
    Publication date: November 8, 2007
    Inventors: Armand Montminy, Thomas Faucher, John Lefavour
  • Publication number: 20070214861
    Abstract: A hydraulic tool including a frame; a ram movably connected to the frame; and a hydraulic drive system on the frame for moving the ram on the frame by hydraulic pressure. The hydraulic drive system includes an automatic release system for automatically releasing hydraulic fluid from the hydraulic drive system. The automatic release system comprises a first valve which is adapted to be automatically opened by a predetermined hydraulic pressure and a second valve which is adapted to be opened by hydraulic fluid passing through the first valve.
    Type: Application
    Filed: March 15, 2006
    Publication date: September 20, 2007
    Inventors: John Lefavour, Armand Montminy
  • Publication number: 20060272381
    Abstract: A hand-held, battery-powered, hydraulically-actuated tool including a frame forming a tool longitudinal axis; a battery offset from the tool longitudinal axis; and located along the tool longitudinal axis a motor connected to the battery; a hydraulic fluid pump connected to the motor, such as by a transmission; a ram movably connected to the frame and adapted to be moved relative to the frame by hydraulic fluid pumped by the hydraulic fluid pump; and a working head adapted to be actuated by the ram. The tool includes a main section situated in an in-line configuration along the tool longitudinal axis. A center longitudinal axis of the battery is offset from the tool longitudinal axis.
    Type: Application
    Filed: April 5, 2006
    Publication date: December 7, 2006
    Inventors: John Ayer, Dean Geibel, Alan Beck, Armand Montminy, John Lefavour, Robert Poirier, Christopher Chadbourne, Samuel Millen
  • Publication number: 20060156786
    Abstract: A battery powered hydraulic tool including a frame; a battery connected to the frame; a motor connected to the frame and adapted to be powered by the battery; and a hydraulic pump connected to the motor by a gear reduction transmission. The motor and gear reduction transmission are adapted to output a torque of the least about 160 oz-in with the gear reduction transmission being adapted to provide a gear reduction of between about 8:1 to about 15:1 or less, and the hydraulic pump being adapted to output at least about 6000 psi of pressure or more.
    Type: Application
    Filed: February 9, 2006
    Publication date: July 20, 2006
    Inventors: John Lefavour, Christopher Chadbourne, Armand Montminy, Gordon Steltzer
  • Publication number: 20060032285
    Abstract: A hydraulic tool including a frame having a hydraulic conduit system; a ram movably connected to the frame; and a multi-speed ram advancement system for advancing the ram in at least two different rates of movement on the frame. The multi-speed ram advancement system includes a hydraulic pump connected to the hydraulic conduit system of the frame; and a conduit tube extending into a hydraulic chamber inside the ram and fixedly connected to the frame. The conduit tube is adapted to conduit hydraulic fluid from the hydraulic conduit system into the hydraulic chamber inside the ram. The conduit tube is axially rotatably connected to the frame and longitudinally stationarily fixed to the frame.
    Type: Application
    Filed: October 25, 2005
    Publication date: February 16, 2006
    Inventors: John Lefavour, Armand Montminy, Thomas Faucher
  • Publication number: 20050229671
    Abstract: A battery powered hydraulic tool including a frame; a battery connected to the frame; a motor connected to the frame and adapted to be powered by the battery; and a hydraulic pump connected to the motor by a gear reduction transmission. The motor and gear reduction transmission are adapted to output a torque of the least about 160 oz-in with the gear reduction transmission being adapted to provide a gear reduction of between about 8:1 to about 15:1 or less, and the hydraulic pump being adapted to output at least about 6000 psi of pressure or more.
    Type: Application
    Filed: June 21, 2005
    Publication date: October 20, 2005
    Inventors: John Lefavour, Christopher Chadbourne, Armand Montminy, Gordon Steltzer
  • Publication number: 20050132771
    Abstract: A hydraulic tool including a frame having a hydraulic conduit system; a ram movably connected to the frame; and a multi-speed ram advancement system for advancing the ram in at least two different rates of movement on the frame. The multi-speed ram advancement system includes a hydraulic pump connected to the hydraulic conduit system of the frame; and a conduit tube extending into a hydraulic chamber inside the ram and fixedly connected to the frame. The conduit tube is adapted to conduit hydraulic fluid from the hydraulic conduit system into the hydraulic chamber inside the ram. The conduit tube is axially rotatably connected to the frame and longitudinally stationarily fixed to the frame.
    Type: Application
    Filed: December 18, 2003
    Publication date: June 23, 2005
    Inventors: John Lefavour, Armand Montminy, Thomas Faucher
  • Patent number: 5868159
    Abstract: A pressure-based mass flow controller suitable for accurately monitoring and controlling the flow of many types of precursors characterized by vapor pressures ranging from approximately 2 torr or lower to at least 760 torr or higher at delivery temperatures of up to at least 250 degrees C. or higher for flow rates ranging from molecular to sonic. A flow restrictive element is installed in the precursor flow path, and the pressures of the fluid upstream and downstream of the flow restrictive element are measured. The ratio of the upstream and downstream fluid pressures is computed and compared to a value stored in the memory of a CPU associated with the controller to determine whether the flow is choked or non-choked. The mass flow of the precursor fluid is then computed by the CPU in accordance with a linear function of the upstream pressure, for choked flow, and in accordance with a nonlinear function of both the upstream and downstream pressures, for non-choked flow.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: February 9, 1999
    Assignee: MKS Instruments, Inc.
    Inventors: James Loan, John LeFavour, D. Jeffrey Lischer, Laura A. Sullivan, David Planchard
  • Patent number: 5421186
    Abstract: Crimping dies for hydraulic compression tools for electrical connectors and the like in which one of the dies in a matching set is provided with means for engaging and stopping a connector workpiece in proper position for crimping in the die jaw.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: June 6, 1995
    Assignee: Burndy Corporation
    Inventor: John Lefavour
  • Patent number: 5342224
    Abstract: A tap connector provided with upper and lower body portions, each of the body portions including opposed concave seating surfaces adapted to hold a conductor having a first diameter. The upper and lower portions are provided with a tongue and groove combination parallel to the concave seating surfaces to hold a conductor having a second diameter less in size than the first diameter. This tongue and groove combination provides an anti-rotating feature.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: August 30, 1994
    Assignee: Burndy Corporation
    Inventor: John Lefavour