Patents Assigned to Specialty Machine & Supply, Inc.
  • Patent number: 5797453
    Abstract: A device for use within a production conduit is disclosed. Generally, the device comprises a body attached to a work string. A deflection member, operatively attached to the body, is included for allowing the deflection of a body mandrel. An aligning spring for aligning the device with a gas lift pocket within the production conduit is included along with a tension adjusting member used for creating a tension in the aligning spring. The device may further comprise a sleeve disposed about the deflection member so that the deflection member is held in a rigid position, with the sleeve being selectively attached to the body. A method for lowering a bottom hole assembly containing a gas lift valve into a side pocket gas lift mandrel is also included.
    Type: Grant
    Filed: October 12, 1995
    Date of Patent: August 25, 1998
    Assignee: Specialty Machine & Supply, Inc.
    Inventor: Jack C. Hisaw
  • Patent number: 5720348
    Abstract: A device for cutting a wire line is disclosed. Generally, the device comprises a tubular member having an inner diameter therethrough for placement of the wire line. A power mandrel is associated with the tubular member. A housing is operatively associated with the mandrel. Also included will be a rotatable cutting blade pivotally attached to the housing, and selective attachment means (operatively associated with the mandrel and the housing) for selectively attaching the mandrel and the housing together. The device may contain an activating member for activating the rotatable cutting blade into engagement with the wire so as to cut the wire. The device may further comprise a wire wedge member, positioned within the mandrel slot, that is adapted to wedge the wire into engagement with the mandrel. In one embodiment, the rotatable cutting blade comprises a disc member having a channel therethrough for receiving the wire, with the channel having sides contoured to cut the wire.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: February 24, 1998
    Assignee: Specialty Machine & Supply, Inc.
    Inventor: Jack C. Hisaw
  • Patent number: 5573064
    Abstract: An apparatus for use in an oil and gas well bore is disclosed. Generally, the apparatus comprises of a mandrel and a housing slidable on the mandrel. The apparatus will also include an engaging member for engaging the walls of the well bore. A spring disposed about the mandrel urges the mandrel into contact with the engaging member.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: November 12, 1996
    Assignee: Specialty Machine & Supply, Inc.
    Inventor: Jack C. Hisaw
  • Patent number: 5379839
    Abstract: A well testing valve for obtaining a pressure build-up survey from a well bore intersecting a reservoir, the well bore containing a landing receptacle, is disclosed. The well testing valve comprises locking means for locking the well testing valve in the landing receptacle, valve means for selectively opening and closing the well bore. Also included is a rotational power source including a control means for selectively opening and closing the well bore, and recording means for recording the bottom hole pressure and temperature.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: January 10, 1995
    Assignee: Specialty Machine & Supply, Inc.
    Inventor: Jack Hisaw
  • Patent number: 5318120
    Abstract: An apparatus and method for obtaining a pressure build-up survey from a well bore intersecting a reservoir, the well bore containing a landing receptacle, is disclosed. The apparatus comprises locking means for locking the apparatus in the landing receptacle, valve means for selectively opening and closing the well bore. Also included is prong means for selectively opening and closing the well bore, and recording means for recording the bottom hole pressure and temperature.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: June 7, 1994
    Assignee: Specialty Machine & Supply, Inc.
    Inventor: Jack Hisaw