Patents by Inventor Gert A. E. Holbek

Gert A. E. Holbek 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: 4231297
    Abstract: To allow adjustment of the table top of a table the table top is connected to the subframe of the table by means of a rigid U-shaped member, the branches of which are pivotally connected to the subframe about a horizontal axis, and the intermediate part of which is pivotally connected to the table top about an axis extending parallel with the pivot axis of the branches. A first telescopically extensible rod, the length of which is adjustable from a predetermined initial length which corresponds to the distance between the pivot axis of the branches and the pivot axis of the intermediate part of the U-shaped member, has one end pivotally connected with the frame at a distance from the pivot axis of the branches, and the other end pivotally connected with the table top at a distance from the pivot axis of the intermediate part, which distance corresponds to the distance between one end of the first rod and the pivot axis of the branches.
    Type: Grant
    Filed: February 13, 1979
    Date of Patent: November 4, 1980
    Assignee: Erik Munch
    Inventor: Gert A. E. Holbek
  • Patent number: 4222149
    Abstract: A door hinge arrangement permitting opening of the door alternatively at either side, comprising a mounting for attachment to the door at the upper edge thereof, and a mounting for attachment to the door at the lower end thereof, each mounting carrying two hinge sets for engagement with hinge pivots fixed to the frame of the door, a trapping member associated with each mounting, the trapping member being slidable longitudinally of the mounting in either direction from a middle position and having a guide so constructed that in the initial phase of the opening of the door at one side each trapping member is so displaced as to trap the corresponding hinge pivot in the hinge seat at the other side of the door, the hinge seats being located at the outer ends of the mountings, the trapping members having a length not exceeding the distance between the outer ends of the hinge seats, a guide being arranged for displacing the trapping members in a direction away from the side, at which the door is being opened.
    Type: Grant
    Filed: July 13, 1978
    Date of Patent: September 16, 1980
    Inventor: Gert A. E. Holbek