Patents by Inventor James A. Lehnen

James A. Lehnen 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: 4421358
    Abstract: There is provided an arm rest assembly for a chair or the like, including an arm rest member and a support member which are pivoted together. The arm rest member has a top surface and the support member terminates below the top surface and is pivoted thereto at a location slightly rearwardly of the forward end. These members define an angle which changes as the chair is adjusted, and the arm rest member includes stop means forwardly of the support member and below the top surface, the stop means being adapted to come into contact with the support member when the angle enlarges to a predetermined size less than 180.degree.. This prevents the arm rest and support members from reaching a dead center position, and avoids the risk that the user's finger will become trapped between the support member and the forward end of the arm rest member.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: December 20, 1983
    Inventor: James A. Lehnen
  • Patent number: 4252371
    Abstract: There is provided a lounge chair with a seat portion and a back portion pivotally hinged to the seat portion. Two arm rest members are pivoted to the side edges of the back portion at intermediate locations, and a U-shaped support is provided for the forward ends of the arm rest members. The U-shaped support has a base member extending between two parallel upstanding side members, and the tops of the side members are pivoted to the arm rest members. The side members are further pivoted to the seat portion at intermediate locations, such that the base member is located in spaced arrangement under the seat portion. However, the U-shaped support is disposed such that its base member remains always clear of the ground, regardless of the attitude of the U-shaped support.
    Type: Grant
    Filed: May 3, 1979
    Date of Patent: February 24, 1981
    Inventor: James A. Lehnen