Patents by Inventor Theodore C. Lambertson

Theodore C. Lambertson 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: 6446279
    Abstract: A drainage surface is provided on a conventional stamped metal sink and drain board unit. Multiple separate arrays of surface ridges are cold metal stamped in each of the drain boards. The upper ridge surfaces form a resting plane for dishware and cooking utensils while drying, permitting air circulation under the each of the kitchenware articles. Such circulating air speeds drying times and lessens the opportunities for cross-contamination problems.
    Type: Grant
    Filed: September 23, 2000
    Date of Patent: September 10, 2002
    Inventor: Theodore C. Lambertson
  • Patent number: 4203379
    Abstract: A stainless steel tub is made from sheet metal panels which are pressed to position and then welded instead of being drawn from a metal blank. The tub is made from a flat metal sheet having a bottom panel and four side panels with each side panel attached along one edge of the bottom panel. The side panels are pressed from the flat position to an upright position with respect to the bottom panel, and the pressing steps are performed with a press having an upper die constructed with a slot which receives and permits movement of one upright side panel within the slot during the time that a second adjacent side panel is being pressed upright for subsequent connection to the first panel. The press also is constructed to produce a curve in a side margin of the second side panel simultaneously with and as part of the step which pressed the first side panel to the upright position.
    Type: Grant
    Filed: July 27, 1978
    Date of Patent: May 20, 1980
    Inventor: Theodore C. Lambertson
  • Patent number: 3998332
    Abstract: A pot rack has a horizontal rack member which is made by pressing a tube length to a generally flattened shape. The width of the die used in the pressing operation is less than the flattened width of the tube, and the outside edge portions of the flattened tube which are not engaged by the die provide longitudinally extending flanges. The resulting flanged rack member is quite rigid and highly resistant to twisting or deflection in use. It is produced at substantially less cost than the conventional flat bar type of pot racks.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: December 21, 1976
    Inventor: Theodore C. Lambertson