Patents Assigned to ZefTek, Inc.
  • Patent number: 4913062
    Abstract: A segmented sliding sill wear plate for universal application to fit a variety of installations and which includes a metal base plate having a plurality of low friction plastic pads bonded to the plate in spaced apart relation, wherein a single long wear plate with multiple pads can be made without warping and can thereafter be cut to size and suitably secured to a sliding sill support member such as by welding or by fastening devices. Because of the size of the plastic pad, a wear plate cut to size can withstand a wide range of temperatures without causing delamination of the plastic material or warping of the metal base.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: April 3, 1990
    Assignee: Zeftek, Inc.
    Inventor: Michael K. Burke
  • Patent number: 4795007
    Abstract: A brake rod protector for a brake rod in a braking system of a railway vehicle to repair a worn brake rod or to provide protection against wear along an area where wear normally occurs. The protector includes a metal base plate shaped to conform with the brake rod and be attached thereto by welding or the like and a body of plastic material bonded to the outer surface of the base plate and to be slidably engageable with a member of the braking system or the railway vehicle.
    Type: Grant
    Filed: July 24, 1987
    Date of Patent: January 3, 1989
    Assignee: Zeftek, Inc.
    Inventors: Richard F. Murphy, Michael K. Burke
  • Patent number: 4784068
    Abstract: A segmented sliding sill wear plate for universal application to fit a variety of installations and which includes a metal base plate having a plurality of low friction plastic pads bonded to the plate in spaced apart relation, wherein a single long wear plate with multiple pads can be made without warping and can thereafter be cut to size and suitably secured to a sliding sill support member such as by welding or by fastening devices. Because of the size of the plastic pad, a wear plate cut to size can withstand a wide range of temperatures without causing delamination of the plastic material or warping of the metal base.
    Type: Grant
    Filed: July 24, 1987
    Date of Patent: November 15, 1988
    Assignee: Zeftek, Inc.
    Inventor: Michael K. Burke