Patents by Inventor David T. Balazek

David T. Balazek 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: 5423251
    Abstract: A modular "knock-down" type shelving system having adjustable height shelves includes a plastic support post having a generally right equilateral triangular cross-section. The support post is composed of pultruded thermosetting plastic having unidirectional E Glass fibers extending therethrough and a thermoplastic coating bonded to the outer surface thereof. The inner surface of the interior side of the support post is bowed outwardly. As a result, when a wedge member is disposed on the interior side of the post and the support post and wedge member combination supports by wedge action a sleeve comprising an end beam and a collar, the interior side of the support post is urged outwardly and is supported by the wedge member. The collar is locked to the end beam when a tongue of the collar passes through a slot in the end beam into a rotatable lock in a blind hole in the bottom of the end beam.
    Type: Grant
    Filed: January 12, 1994
    Date of Patent: June 13, 1995
    Assignee: Metro Industries, Inc.
    Inventors: Albert Kolvites, Robert J. Cohn, John H. Welsch, Willard J. Sickles, David T. Balazek, Rodney E. Brancher
  • Patent number: 5279231
    Abstract: A modular "knock-down" type shelving system having adjustable height shelves includes a plastic support post having a generally right equilateral triangular cross-section. The support post is composed of pultruded thermosetting plastic having unidirectional E Glass fibers extending therethrough and a thermoplastic coating bonded to the outer surface thereof. The inner surface of the interior side of the support post is bowed outwardly. As a result, when a wedge member is disposed on the interior side of the post and the support post and wedge member combination supports by wedge action a sleeve comprising an end beam and a collar, the interior side of the support post is urged outwardly and is supported by the wedge member. The collar is locked to the end beam when a tongue of the collar passes through a slot in the end beam into a rotatable lock in a blind hole in the bottom of the end beam.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: January 18, 1994
    Assignee: Metro Industries Inc.
    Inventors: Albert Kolvites, Robert J. Cohn, John H. Welsch, Willard J. Sickles, David T. Balazek, Rodney E. Brancher
  • Patent number: 5271337
    Abstract: A modular "knock-down" type shelving system having adjustable height shelves includes a plastic support post having a generally right equilateral triangular cross-section. The support post is composed of pultruded thermosetting plastic having unidirectional E Glass fibers extending therethrough and a thermoplastic coating bonded to the outer surface thereof. The inner surface of the interior side of the support post is bowed outwardly. As a result, when a wedge member is disposed on the interior side of the post and the support post and wedge member combination supports by wedge action a sleeve comprising an end beam and a collar, the interior side of the support post is urged outwardly and is supported by the wedge member. The collar is locked to the end beam when a tongue of the collar passes through a slot in the end beam into a rotatable lock in a blind hole in the bottom of the end beam.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: December 21, 1993
    Assignee: Metro Industries Inc.
    Inventors: Albert Kolvites, Robert J. Cohn, John H. Welsch, Willard J. Sickles, David T. Balazek, Rodney E. Brancher
  • Patent number: 4964350
    Abstract: A modular "knock-down" type shelving system having adjustable height shelves includes a plastic support post having a generally right equilateral triangular cross-section. The support post is composed of pultruded thermosetting plastic having unidirectional E Glass fibers extending therethrough and a thermoplastic coating bonded to the outer surface thereof. The inner surface of the interior side of the support post is bowed outwardly. As a result, when a wedge member is disposed on the interior side of the post and the support post and wedge member combination supports by wedge action a sleeve comprising an end beam and a collar, the interior side of the support post is urged outwardly and is supported by the wedge member. The collar is locked to the end beam when a tongue of the collar passes through a slot in the end beam into a rotatable lock in a blind hole in the bottom of the end beam.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: October 23, 1990
    Assignee: InterMetro Industries Corporation
    Inventors: Albert Kolvites, Robert J. Cohn, John H. Welsch, Willard J. Sickles, David T. Balazek
  • Patent number: 4938823
    Abstract: A method for the manufacture of fiber reinforced plastic articles includes the steps of pultruding a first profile through a die and applying a thermoplastic resin to the first profile to form a second profile bonded integrally to the first profile. A fiber reinforced plastic article (10) prepared according to the method of the present invention comprises a first profile (11) comprising a plurality of continuous fiber reinforcing materials (13) and a thermosetting resin (14) impregnating the reinforcing material and, a second profile (12) integrally bonded to the first profile and comprising a thermoplastic resin (65).
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: July 3, 1990
    Assignee: The Pultrusions Corporation
    Inventors: David T. Balazek, Thomas J. Griffiths, David E. Pearson