Patents by Inventor George W. Irwin

George W. Irwin 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: 4512792
    Abstract: The cooling wind for the molds on a glass bottle forming machine is controlled by a damper which is set by hand and positioned in the air passages from the section box or base of a glass forming machine and a nozzle base bolted to the top of the section box. As a further control for the air a piston operated vane positioned such that it will shut off the air to the air passages upon receipt of an air signal from the timing system of the machine is provided and is to be operated each cycle of the machine to prevent cooling air from impinging on bare glass.
    Type: Grant
    Filed: July 11, 1983
    Date of Patent: April 23, 1985
    Assignee: Owens-Illinois, Inc.
    Inventors: George W. Irwin, Eustace H. Mumford
  • Patent number: 4486215
    Abstract: The disclosed apparatus is a quadruple gob glass parison forming machine. Its distinguishing features are the mounting of the mold carrying inserts in the mold arms so that equal closing forces will be applied to all the molds, and that the mold arms are formed with extensions so that a conventional mold closing motor can by coupled to the arms and the closing force will be greater by at least 25%. The four molds are opened and closed within the space that has normally been considered cramped, even when three molds were being used.
    Type: Grant
    Filed: May 26, 1983
    Date of Patent: December 4, 1984
    Assignee: Owens-Illinois, Inc.
    Inventors: George W. Irwin, Eustace H. Mumford
  • Patent number: 4466821
    Abstract: A glassware forming machine is shown which has a baffle support arm. The baffle support arm provides for four individual baffle holders which are grouped in adjacent pairs. The pairs of holders are interconnected by an equalizer arm and are biased into position by a leaf spring above and by a coil spring below. The equalizer arms are connected intermediate their lengths to a third larger equalizer bar which is pivoted for a rocking motion. The apparatus further comprises means for lifting and moving the baffle support arm and a latch means for changing the baffle holders.
    Type: Grant
    Filed: December 22, 1982
    Date of Patent: August 21, 1984
    Assignee: Owens-Illinois, Inc.
    Inventors: George W. Irwin, Eustace H. Mumford
  • Patent number: 4449996
    Abstract: This application relates to parallel blank mold opening mechanism wherein the split blank molds, of which there are a plurality, are carried in holders that are mounted on horizontal hinge pins adjacent the rear thereof. These hinge pins are carried at the upper end of crank arms and move toward and away from each other during the cycle of operation of a pneumatic motor. Each of the mold holders is provided with a parallel link which is connected between the base of the mold mechanism housing and the holder, such that upon opening and closing of the mold the faces of the molds are maintained in a vertical plane. In addition, the position of the axes of the crank shafts and the hinge pins are such that the hinge pins move over top dead center or through the vertical plane defined by the axis of the crank shaft upon opening or closing. In this manner the molds are actually lifted a slight amount during movement from their closed to their open position.
    Type: Grant
    Filed: December 22, 1982
    Date of Patent: May 22, 1984
    Assignee: Owens-Illinois, Inc.
    Inventors: George W. Irwin, Eustace H. Mumford
  • Patent number: 4120683
    Abstract: In apparatus for molding glass into hollow-shaped articles such as glass containers, glass charges are delivered to a parison mold wherein the glass is shaped either by a plunger or by a counterblow within the parison mold. The charge of glass that is delivered to the parison mold is guided into the mold by a superimposed funnel. The funnel is alternately moved into and out of position at the open, upper end of the parison mold to effect the guiding of the charge. The mechanism for moving the funnel on a conventional I.S. machine must be capable of moving the funnel from an upper, radially displaced position, to a lower, seated position concentric with the mold. The operation of the funnel seating motion is accomplished by the use of a generally reciprocable, fluid-operated motor in which a funnel-carrying arm is fixed to the piston rod of the motor and the rod is turned about its vertical axis during its upward and downward movement.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: October 17, 1978
    Assignee: Owens-Illinois, Inc.
    Inventor: George W. Irwin
  • Patent number: 3986858
    Abstract: In apparatus for molding glass into hollow-shaped articles such as glass containers, glass is delivered to a parison mold wherein the glass is shaped either by a plunger or by a counter-blow with the end of the parison mold, through which the glass is delivered, closed by what is termed a "baffle." The mechanism for moving the baffle on a conventional IS machine must be capable of moving the baffle from an upper, radially displaced position, to a lower aligned position over the mold. The operation of the baffle seating motion is accomplished by the use of a vertically reciprocable, fluid-operated motor in which a baffle arm carrying piston rod of the motor is turned about its axis during its upward and downward movement. The control of the fluid supply to the motor and the exhaust from the motor is such that the rate of movement is monitored and controlled.
    Type: Grant
    Filed: September 3, 1974
    Date of Patent: October 19, 1976
    Assignee: Owens-Illinois, Inc.
    Inventors: George W. Irwin, Eustace H. Mumford