Patents by Inventor Jan L. Dorfman

Jan L. Dorfman 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: 5235911
    Abstract: Registration apparatus for controlling the image height and circumferential orientation of a plate cylinder of a can decorating apparatus using hydraulic linear actuators or electric linear actuators to move first adjustors for the circumferential orientation and second adjustors for the image height orientation.
    Type: Grant
    Filed: June 23, 1992
    Date of Patent: August 17, 1993
    Assignee: Coors Brewing Company
    Inventors: Jan L. Dorfman, Larry M. Dugan, Frank L. Shriver
  • Patent number: 5094365
    Abstract: An adapter for use with a tap assembly for dispensing a product from a container wherein the adapter has a body portion having separate product and gas passageways with an abutment ledge within the body portion surrounding the product passageway and having a sealing gasket seated thereon and connecting apparatus for connecting the adapter to the container. Dispensing apparatus is secured to the adapter and has a product passageway formed therein and has an abutment surface for contacting the sealing gasket to form a fluid tight seal between the abutment ledge and the abutment surface and wherein the adapter has two differing types of sealing apparatus for sealing the gas passageway wherein a first sealing apparatus is normally in a closed position and is automatically moved to an opened position when the adapter is connected to the container and a second sealing apparatus is normally in an opened position and is moved to a closed position by application of a force thereto.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: March 10, 1992
    Assignee: Coors Brewing Company
    Inventor: Jan L. Dorfman
  • Patent number: 5038952
    Abstract: A closure assembly for a pressurized, plastic beverage container having an upper end opening comprising: an annular container neck defining the container upper end opening comprising a radially extending top surface, an axially extending surface, and a lower, generally radially extending surface; a gasket positioned on top of the annular container neck; and a container cap comprising a flat central body positioned in covering relationship with the container opening and in abutting engagement with the gasket; and an annular flange includinngn an axially extending portion positioned in parallel, adjacent, noncompressive relationship with the axially extending surface of the container neck, and a generally radially inwardly extending portion positioned in abutting, compressive contact with the lower, generally radially extending surface of the container neck whereby upwardly directed axial force on the container cap produced by pressurization of the container is resisted by downwardly directed axial force applie
    Type: Grant
    Filed: December 14, 1989
    Date of Patent: August 13, 1991
    Assignee: Coors Brewing Company
    Inventor: Jan L. Dorfman
  • Patent number: 5026237
    Abstract: A crimping tool for attaching a cap member to a container neck flange, including a nest member for axially locating the crimping tool at a predetermined position relative to the cap member; a unitary collet member mounted on the nest member for engaging and crimpingly deforming the cap member about the container neck flange; a sleeve member positioned in circumscribing relationship with the collet member in axially displaceable relationship therewith for engaging a lower portion of the collet member and urging the collet member into crimping relationship with the cap member during axial displacement of the sleeve member relative the collet member; and an axial displacement member mechanically linked to the collet member and the sleeve member for selectively axially displacing the sleeve member relative the collet member is disclosed.
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: June 25, 1991
    Assignee: Coors Brewing Company
    Inventor: Jan L. Dorfman
  • Patent number: 4923095
    Abstract: An expandable pouch for applying a pressure to a material to be dispensed from a container wherein two sheets of a fluid impervious material are permanently joined together at their edges and divided into a plurality of compartments by semi-permanent peelable strips. One of the compartments is divided into sub-compartments with fluid communication being provided between two sub-compartments. One of a two component chemical gas generating system is located in each of the two sub-compartments so that when the pouch is inverted, the chemicals combine to start generating gas to force open the peelable strips.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: May 8, 1990
    Assignee: Adolph Coors Company
    Inventors: Jan L. Dorfman, Larry M. Dugan, David C. Young, Mark A. Willcoxen
  • Patent number: 4892209
    Abstract: A liquor bottle capping assembly comprising a perforated member fixedly attachable to the liquor bottle in covering relationship with a threaded opening in the liquor bottle for preventing flame propagation into the liquor bottle.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: January 9, 1990
    Assignee: Adolph Coors Company
    Inventors: Jan L. Dorfman, Harold Cook, Jr., Bruce A. Moen
  • Patent number: 4739901
    Abstract: Dispensing apparatus is attached to a container filled with a fluid and shipped with the container wherein during shipment the dispensing apparatus has two separate seals comprising an operable valve for opening and closing a first passageway, and a sealing member for closing a second passageway and the dispensing apparatus is locked in a closed position. A locking member is provided for preventing accidental movement of the dispensing apparatus and also to provide positive identification that the container has not been tampered with. A self generating pressure applying expandable pouch is located within the container to apply a substantially constant pressure on the fluid so that the fluid may be dispensed from the container.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: April 26, 1988
    Assignee: Adolph Coors Company
    Inventors: Jan L. Dorfman, William C. Christine
  • Patent number: 4463844
    Abstract: A method and apparatus for processing used empty aluminum and steel cans wherein groups of empty cans are carried upwardly on an inclined conveyor between spaced inclined ribs and separately sequentially discharged therefrom into an air duct wherein empty cans are blown to a crusher whereat the empty cans are sequentially crushed and fall onto a magnetic separator whereat crushed aluminum cans are separated from crushed steel cans and fall into a weigh hopper whereat the weight of crushed aluminum cans is determined whereupon compensation is dispensed for the value of the crushed aluminum cans. Thereafter, the crushed aluminum cans are sequentially dropped into an air duct and blown to a storage bin.
    Type: Grant
    Filed: December 23, 1981
    Date of Patent: August 7, 1984
    Assignee: Adolph Coors Company
    Inventors: Stanley S. Huffman, Jan L. Dorfman, Robert L. Frenkel, Ronald A. Pearce