Patents by Inventor Kenneth C. Wilken

Kenneth C. Wilken 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: 5413052
    Abstract: A plastic pallet has a twin sheet thermoformed upper deck reinforced with a tubular metal substrate. Injection molded plastic octagonal posts have support member walls which are positioned beneath reinforced portions of the top deck. The posts also have a sleeve with a central bolt hole which is parallel to the support member walls. A twin sheet thermoformed lower deck is spaced from the upper deck by the posts and receives the posts in recessed pockets. Plastic bolts are inserted through the top deck, each post, and the bottom deck and are held in place by plastic T-nuts. A sawtooth parting line in the twin-sheet thermoforming molds provide accurate alignment and molding of the pallet parts.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: May 9, 1995
    Assignee: TriEnda Corporation
    Inventors: Harlon W. Breezer, Kenneth C. Wilken, Michael J. Wolfe, William Price
  • Patent number: 5351629
    Abstract: A plastic pallet has a twin sheet thermoformed upper deck reinforced with a tubular metal substrate. Injection molded plastic octagonal posts have support member walls which are positioned beneath reinforced portions of the top deck. The posts also have a sleeve with a central bolt hole which is parallel to the support member walls. A twin sheet thermoformed lower deck is spaced from the upper deck by the posts and receives the posts in recessed pockets. Plastic bolts are inserted through the top deck, each post, and the bottom deck and are held in place by plastic T-nuts. The pallet is sealed against entry of liquid into the interior space of the pallet and may be stored on a flat surface or elevated on a rack.
    Type: Grant
    Filed: March 16, 1993
    Date of Patent: October 4, 1994
    Assignee: TeiEnda Corporation
    Inventors: Harlon W. Breezer, William Price, Kenneth C. Wilken, Michael J. Wolfe
  • Patent number: 5251342
    Abstract: A portable toilet assembly has a twin-sheet thermoformed toilet tank, base, and urinal. The toilet tank has an upper thermoplastic sheet which is fused to a lower thermoplastic sheet. The toilet tank sheets are each coextruded from two thermoplastic materials of different colors, such that the toilet tank interior is a dark color and the exterior is a lighter color. Portions of the fused sheets extend outwardly from the tank and define flanges which can be used to attach the toilet tank to the toilet base and to the walls of a cabana. The toilet tank lower sheet has a downwardly extending pyramidal sump in which waste can accumulate. The base has a hole for receiving the toilet tank, a platform with downwardly extending sidewalls with outwardly extending ledges, and channels which extend through the sidewalls and ledges which allow flow of liquids from within the cabana and ventilation of noxious odors.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: October 12, 1993
    Assignee: Synergy World, Inc.
    Inventors: Clyde B. Sansom, David C. Keeling, Kenneth C. Wilken, Ronald D. Olson, Michael J. Wolfe
  • Patent number: 5197396
    Abstract: A plastic pallet has a twin sheet thermoformed upper deck reinforced with a tubular metal substrate. Injection molded plastic octagonal posts have support member walls which are positioned beneath reinforced portions of the top deck. The posts also have a sleeve with a central bolt hole which is parallel to the support member walls. A twin sheet thermoformed lower deck is spaced from the upper deck by the posts and receives the posts in recessed pockets. Plastic bolts are inserted through the top deck, each post, and the bottom deck and are held in place by plastic T-nuts. The pallet is sealed against entry of liquid into the interior space of the pallet and may be stored on a flat surface or elevated on a rack.
    Type: Grant
    Filed: August 5, 1991
    Date of Patent: March 30, 1993
    Assignee: Penda Corporation
    Inventors: Harlon W. Breezer, William Price, Kenneth C. Wilken, Michael J. Wolfe