Patents by Inventor John Kowalski

John Kowalski 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).

  • Connector clip for waste receptacles
    Patent number: 5181297
    Abstract: A connector clip for connecting waste receptacles is disclosed, comprising an elongate body 2 of substantially M-shape in cross-section, having inverted U-shaped attachment portions 4,6 extending from a central connective loop portion 8. The portions 4,6 clamp over upper rims of two receptacles, whereby placing the receptacles in a side by side optimal spacing, and the elastomeric composition of the clip provides a positive connection with the receptacles, yet enables one receptacle to be disconnected from the other if so desired. The attachment portions 4,6 and the connective portion 8 define a longitudinal channel 30 which is open at the top and opposite ends, whereby admitting the upper edge of a plastic garbage bag positioned in one or both of the receptacles.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: January 26, 1993
    Assignee: Rubbermaid Commercial Products Inc.
    Inventors: Howard W. Andrews, Jr., John A. Kowalski, Friedrich G. Wahl
  • Apparatus of manufacturing fastening element train
    Patent number: 4158532
    Abstract: A plurality of spaced fastener elements are molded onto parallel filaments. A pair of leg portions of each fastening element have, respectively, a projection and an opening, the projection and opening mating to interlock the leg portions. The fastening elements are formed by directing the parallel filaments to a cavity wheel which has mold cavities enclosed by a band, and then injecting plastic material through gas openings in the band into the mold cavities to form a train of fastener elements on the parallel filaments.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: June 19, 1979
    Assignee: Textron Inc.
    Inventor: John A. Kowalski
  • Fastening element train and method and apparatus of manufacture
    Patent number: 4157603
    Abstract: A plurality of spaced fastener elements are molded onto parallel filaments. A pair of leg portions of each fastening element have, respectively, a projection and an opening, the projection and opening mating to interlock the leg portions. The fastening elements are formed by directing the parallel filaments to a cavity wheel which has mold cavities enclosed by a band, and then injecting plastic material through gate openings in the band into the mold cavities to form a train of fastener elements on the parallel filaments.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: June 12, 1979
    Assignee: Textron Inc.
    Inventor: John A. Kowalski
  • Method of making a fastener element
    Patent number: 4096225
    Abstract: Method of molding plurality of spaced fastener elements onto parallel filaments. A pair of leg portions of each fastening element have, respectively, a projection and an opening, the projection and opening mating to interlock the leg portions. The fastening elements are formed by directing the parallel filaments to a cavity wheel which has mold cavities enclosed by a band, and then injecting plastic material through gate openings in the band into the mold cavities to form a train of fastener elements on the parallel filaments.
    Type: Grant
    Filed: December 7, 1976
    Date of Patent: June 20, 1978
    Assignee: Textron, Inc.
    Inventor: John A. Kowalski