Patents by Inventor William R. Stadick

William R. Stadick 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).

  • Welding thermoplastic material with a laser
    Patent number: 5279693
    Abstract: An apparatus for forming a weld between first and second thermoplastic materials in which the softening temperature of the second thermoplastic material is lower than that of the first thermoplastic material. The apparatus includes a supplier for supplying the first thermoplastic material and the second thermoplastic material to the same weld position with the second thermoplastic material at a first side of the first thermoplastic material, and a projector for projecting a laser beam to the weld position from a second side of the first thermoplastic material.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: January 18, 1994
    Assignee: LPS Industries, Inc.
    Inventors: John P. Robinson, William R. Stadick, Thomas L. Clawges, John A. Zuvich, Daniel Trigger
  • Method of making a double zipper pouch
    Patent number: 5116301
    Abstract: A double zipper pouch having first and second pockets adjacent one another and with a common wall portion, each pocket having an opening for receiving contents such as identification papers. The first and second pockets are formed so that their openings are displaced relative to one another. Pressure actuated resealable fasteners are disposed adjacent the openings in each of the first and second pockets. First and second indicators are also disposed adjacent the openings to provide an indication of the location of the associated opening. The indicators are preferably different from one another so as to provide an identification for the associated pocket. An adhesive material is formed on the back of the first pocket for affixing the pouch to, for example, a package.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: May 26, 1992
    Assignee: LPS Industries, Inc.
    Inventors: John P. Robinson, William R. Stadick, Thomas L. Clawges, Thomas P. Minogue
  • Compartmented double zipper pouch
    Patent number: 4993844
    Abstract: A double zipper pouch having first and second pockets adjacent one another and with a common wall portion, each pocket having an opening for receiving contents such as identification papers. The first and second pockets are formed so that their openings are displaced relative to one another. Pressure actuated resealable fasteners are disposed adjacent the openings in each of the first and second pockets. First and second indicators are also disposed adjacent the openings to provide an indication of the location of the associated opening. The indicators are preferably different from one another so as to provide an identification for the associated pocket. An adhesive material is formed on the back of the first pocket for affixing the pouch to, for example, a package.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: February 19, 1991
    Assignee: LPS Industries, Inc.
    Inventors: John P. Robinson, William R. Stadick, Thomas L. Clawges, Thomas P. Minogue