Patents by Inventor Donald Stell

Donald Stell 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: 4906310
    Abstract: A method of extruding a continuous profiled fastener onto a thermoplastic film substrate, and more particularly, a method for the continuous bonding of a profiled fastener assembly to a thermoplastic cuff film substrate through the intermediary of hot extrusion.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: March 6, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Kevin Broderick, Fox J. Herrington, Donald Stell
  • Patent number: 4850946
    Abstract: A draw type bag with two single draw tapes having a front wall and back wall of flexible sheet material joined to each other along edges of the bag. Tubular channels extend along opposed transverse top edges of the front and back walls. The channels define an open mouth for the bag. Each of the channels has openings at the opposite ends of the top edges of the bag. A pair of draw tapes extends through both of the channels. One end of each of the tapes is attached to opposite side edges of the bag beneath the openings in one of the channels and the other end of each of the tapes extends through the openings at the corresponding ends of the other of the channels so that the tapes cross each other in both channels and wrap around the mouth of the bag whereby when the tapes are pulled the mouth of the bag is drawn tightly together.
    Type: Grant
    Filed: July 7, 1988
    Date of Patent: July 25, 1989
    Assignee: Mobil Oil Corporation
    Inventors: Kevin Broderick, Vernon C. Catchman, Fox J. Herrington, Shirley K. Johnston, Robert H. Olson, Donald Stell
  • Patent number: 4792241
    Abstract: A dual draw tape bag has a front wall and back wall of flexible sheet material joined to each other along edges of the bag. Tubular channels extend along opposed transverse top edges of the front and back walls. The channels define an open mouth for the bag. Each of the channels has openings at the opposite ends of the top edges of the bag. A pair of tapes extend through each of the chanels. One of the ends of each of the tapes is attached to the opposite side edges of the bag beneath the openings in the channels and the other ends of the tapes extend through the respective openings at the other end of the channels so that the tapes cross in the channels, whereby when the tapes are pulled, the top of the bag is drawn tightly together.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: December 20, 1988
    Assignee: Mobil Oil Corporation
    Inventors: Kevin Broderick, Vernon C. Catchman, Fox J. Herrington, Shirley K. Johnston, Robert H. Olson, Donald Stell
  • Patent number: 4786189
    Abstract: A draw tape bag with two single draw tapes having a front wall and back wall of flexible sheet material joined to each other along edges of the bag. Tubular channels extend along opposed transverse top edges of the front and back walls. The channels define an open mouth for the bag. Each of the channels has openings at the opposite ends of the top edges of the bag. A pair of draw tapes extends through both of the channels. One end of each of the tapes is attached to opposite side edges of the bag beneath the openings in one of the channels and the other end of each of the tapes extends through the openings at the corresponding ends of the other of the channels so that the tapes cross each other in both channels and wrap around the mouth of the bag whereby when the tapes are pulled the mouth of the bag is drawn tightly together.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: November 22, 1988
    Assignee: Mobil Oil Corporation
    Inventors: Kevin Broderick, Vernon C. Catchman, Fox J. Herrington, Shirley K. Johnston, Robert H. Olson, Donald Stell
  • Patent number: 4786191
    Abstract: A draw tape bag with two single tapes has a front wall and back wall of flexible sheet material joined to each other along edges of the bag. Tubular channels extend along opposed transverse top edges of the front and back walls. The channels define an open mouth for the bag. Each of the channels has openings at the opposite ends of the top edges of the bag. A tape extends through each of the channels. One of the ends of each of the tape is attached to the opposite side edges of the bag beneath the openings in the channels and the other end of the tape extends through the respective opening at the other end of the channel so that the tapes cross in their respective channels, whereby when the tapes are pulled, the top of the bag is drawn tightly together. A method of forming this draw tape bag is also disclosed.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: November 22, 1988
    Assignee: Mobil Oil Corporation
    Inventors: Kevin Broderick, Vernon C. Catchman, Fox J. Herrington, Shirley K. Johnston, Robert H. Olson, Donald Stell