Patents by Inventor Robert F. Zelinka

Robert F. Zelinka 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).

  • Lifting device
    Patent number: 5257877
    Abstract: A lifter for emptying a container into a cavity of a vehicle. The lifter has a first plate pivotally connected to the vehicle, and a second plate extending at an angle from the first plate. The lifter has a third plate slidably mounted on the second plate, with the third plate having a pair of hooks to grasp bars on the container. The lifter moves between a first lower position beneath the truck to a second upper position with the container located above the cavity to empty the container into the cavity.
    Type: Grant
    Filed: August 27, 1991
    Date of Patent: November 2, 1993
    Assignee: Perkins Manufacturing Company
    Inventors: Robert F. Zelinka, John W. Redding
  • Lifting device
    Patent number: 5069593
    Abstract: A lifter for emptying a container into a cavity of a vehicle. The lifter has a first plate pivotally connected to the vehicle, and a second plate extending at an angle from the first plate. The lifter has a third plate slidably mounted on the second plate, with the third plate having a pair of hooks to grasp bars on the container. The lifter moves between a first lower position beneath the truck to a second upper position with the container located above the cavity to empty the container into the cavity.
    Type: Grant
    Filed: November 21, 1989
    Date of Patent: December 3, 1991
    Assignee: Perkins Manufacturing Company
    Inventors: Robert F. Zelinka, John W. Redding
  • Lifting device
    Patent number: 5024573
    Abstract: A lifter to empty a container into a cavity of a vehicle. The lifter is movably mounted below a sill edge of the cavity, so that the lifter is beneath the vehicle when not in use. The lifter has hooks to grasp bars on the container. The lifter has devices for moving from a position beneath the vehicle to a position above the cavity for dumping the container. The lifter has devices for capturing the lower bar of the container which automatically compensates for out-of-tolerance parts in the lifter due to such things as construction or wear.
    Type: Grant
    Filed: November 17, 1988
    Date of Patent: June 18, 1991
    Assignee: Perkins Manufacturing Company
    Inventors: John W. Redding, Robert F. Zelinka
  • Lifting device
    Patent number: 4911600
    Abstract: A lifter for emptying a container into a cavity of a vehicle. The lifter has a first plate pivotally connected to the vehicle, and a second plate extending at an angle from the first plate. The lifter has a third plate slidably mounted on the second plate, with the third plate having a pair of hooks to grasp bars on the container. The lifter moves between a first lower position beneath the truck to a second upper position with the container located above the cavity to empty the container into the cavity.
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: March 27, 1990
    Assignee: Perkins Manufacturing Company
    Inventors: Robert F. Zelinka, John W. Redding
  • Receptacle dumping apparatus and method
    Patent number: 4741658
    Abstract: A lifter for emptying a container into a cavity of a vehicle. The lifter has a first plate pivotally connected to the vehicle, and a second plate extending at an angle from the first plate. The lifter has a third plate slidably mounted on the second plate, with the third plate having a pair of hooks to grasp bars on the container. The lifter moves between a first lower position beneath the truck to a second upper position with the container located above the cavity to empty the container into the cavity.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: May 3, 1988
    Assignee: Perkins Manufacturing Company
    Inventors: Robert F. Zelinka, John W. Redding