Patents by Inventor Howard S. Kliger

Howard S. Kliger 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).

  • Process for forming improved carbon fiber reinforced composite coil spring
    Patent number: 4380483
    Abstract: A carbon fiber reinforced composite coil spring is provided which is made from a braid formed of carbon fibers oriented at a preferred angle to the braid axis of approximately plus or minus 45.degree. and impregnated with a resin which serves as a substantially continuous matrix phase. Longitudinal reinforcing fiber may be incorporated into the braid to prevent it from straightening under longitudinal tension. The carbon fiber reinforced composite coil spring is formed by wrapping the braid, impregnated with a non-solidified resin, within a groove which extends helically along the surface of a helical mandrel and solidifying the resinous matrix material, and then removing the solid composite coil spring from the helical mandrel.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: April 19, 1983
    Assignee: Celanese Corporation
    Inventor: Howard S. Kliger
  • Carbon fiber reinforced composite coil spring
    Patent number: 4260143
    Abstract: A carbon fiber reinforced composite coil spring is provided which is made from a braid formed of carbon fibers oriented at a preferred angle to the braid axis of approximately plus or minus 45.degree. and impregnated with a resin which serves as a substantially continuous matrix phase. Longitudinal reinforcing fiber may be incorporated into the braid to prevent it from straightening under longitudinal tension. The carbon fiber reinforced composite coil spring is formed by wrapping the braid, impregnated with a non-solidified resin, within a groove which extends helically along the surface of a helical mandrel and solidifying the resinous matrix material, and then removing the solid composite coil spring from the helical mandrel.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: April 7, 1981
    Assignee: Celanese Corporation
    Inventor: Howard S. Kliger