Patents by Inventor Jack F. Hernick

Jack F. Hernick 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: 5131500
    Abstract: In a multi-purpose vehicle hoist including a wheel lift and a chassis lift, the elevational movement of the wheel lift may be used to generate a force to raise the chassis lift.
    Type: Grant
    Filed: January 8, 1991
    Date of Patent: July 21, 1992
    Inventor: Jack F. Hernick
  • Patent number: 4452340
    Abstract: A vehicle hoist includes a wheel lift operable to raise and lower a vehicle by its wheels, and a frame lift operable to raise and lower a vehicle by its frame. Each lift is disposed and operable to raise and lower the same vehicle independently of the other, one of the lifts being permanently mounted on the other to be raised and lowered thereby when the other is operated to raise and lower the vehicle. In its preferred form the lifts are hydraulically operated, the skirt of the lower piston being upwardly extended to form a chamber for the piston of the upper lift.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: June 5, 1984
    Inventors: Jack F. Hernick, Vincent G. Lamont