Patents by Inventor Carl A. Kollar

Carl A. Kollar 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: 6000758
    Abstract: The lift chair has a base frame, an extendable/retractable chair occupant positioning apparatus attached to the base frame, a reversible D.C. motor for extension and retraction of the chair occupant positioning apparatus relative to the base frame. A control means is connected to the D.C. motor for actuation of the chair occupant positioning device. A power supply is connected to the control means for motor control. A chair occupant carriage is supported by the base frame. The carriage has a seat and a back portion.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: December 14, 1999
    Assignee: Pride Health Care, Inc.
    Inventors: Walter E. Schaffner, Carl A. Kollar, James P. Mulhern, Ronald J. Levi, Stephen J. Antonishak
  • Patent number: 5695021
    Abstract: An electrically-powered scooter vehicle for use by elderly, disabled and infirm people includes a self-locking connection means for connecting front and rear frame portions of the scooter. The scooter is convertible between three-wheel and four-wheel versions without use of tools. Automatic shut-off circuity minimizes inadvertent loss of battery power due to failure to turn off the scooter. An adjustably lockable telescoping tiller facilitates use of the scooter by persons of all sizes.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: December 9, 1997
    Assignee: Pride Health Care, Inc.
    Inventors: Walter Schaffner, Walter Kochan, Carl Kollar