Patents by Inventor Donald Farrington Williamson

Donald Farrington Williamson 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: 4090637
    Abstract: A dispenser for conical articles such as ice cream cones and the like in which a plurality of tubular columns are arranged above an open-fronted enclosure, with container restraining means arranged at the base of each column, permitting a portion of each container to extend through the retaining means into the open-fronted enclosure from which the container may be grasped and drawn downwardly through the restraining means, and removed from the enclosure, and in which the storage columns are provided with means extending between adjacent said storage columns to provide mutual support between adjacent columns, and in which the columns are mounted on an upper mounting plate having holes therein registering with the base of a respective column, the upper mounting plate being attached to the top of the open-sided enclosure, and with the restraining means being sandwiched between the said top of said enclosure and said upper mounting plate whereby to partially obstruct each of said holes in said upper mounting plat
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: May 23, 1978
    Inventor: Donald Farrington Williamson
  • Patent number: 3981232
    Abstract: A free standing fryer such as may be used in commercial installations which includes a cabinet adapted to be supported at a suitable working height, and having glass panels on some of its sides and at least one open side for access to the interior, and having a fat fryer located within the interior of said cabinet and having in the roof of the cabinet outlet means for fumes from the fat fryer, fan means for extracting air and fumes from said cabinet and through said outlet, a plenum chamber located to one side of said fan means, and opening means communicating from said fan means to said plenum chamber, porous tray means located above said plenum chamber and closing the same, said tray means being adapted to support a predetermined depth of filter media thereon, said filter media being porous to air, and being absorptive with respect to said odors and fumes from said fryer.
    Type: Grant
    Filed: June 20, 1975
    Date of Patent: September 21, 1976
    Inventor: Donald Farrington Williamson