Patents by Inventor Ralph J. Trnka

Ralph J. Trnka 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: 6434996
    Abstract: A bottom forming station for forming a metal can having a sidewall and base portion is provided. The bottom forming station comprises a punch sleeve. The punch sleeve comprises a body having a sidewall that defines a bore for securely receiving a punch nose. The punch sleeve sidewall has a first section that corresponds to the shape of at least a portion of a beverage can base. The punch sleeve sidewall has a second section that corresponds to at least a portion of a beverage can sidewall profile. The second surface is integrally coupled with the first surface. The punch sleeve sidewall has a third section that is adapted to communicate with a punch nose and form a slip line that has a junction area in a non-active area. The third section is integrally coupled with the first and second sections. A bottom forming station also comprises a punch nose. The punch nose includes a body having a sidewall. The sidewall has a first section that corresponds to the shape of at least a portion of a beverage can base.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: August 20, 2002
    Assignee: Crown Cork & Seal Technologies Corporation
    Inventors: Anton A. Aschberger, Ralph J. Trnka, Robert A. Winkless
  • Patent number: 5970767
    Abstract: A method of manufacturing a metallic can body that is shaped distinctively in order to enhance its visual presentation to consumers includes, in one embodiment, steps of providing a can body blank that has a sidewall that is of a substantially constant diameter; providing a mold unit that has at least one mold wall that defines a mold cavity conforming a desired final shape of the can body; positioning the can body blank within the mold cavity; and supplying a pressurized fluid into the mold cavity so that the can body blank is forced by pressure against the mold wall, causing the can body blank to assume the desired final shape of the can body. Axial compression is preferably applied to the can body blank in order to reduce internal stresses during molding of the container.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: October 26, 1999
    Assignee: Crown Cork & Seal Technologies Corporation
    Inventors: Mark W. Hartman, Zeev W. Shore, James J. Tang, Anton A. Aschberger, Michael R. Gogola, William O. Irvine, Ralph J. Trnka, Richard O. Wahler, Robert A. Winkless, Richard Mark Orlando Golding, David Harvey
  • Patent number: 5960659
    Abstract: A method of manufacturing a metallic can body that is shaped distinctively in order to enhance its visual presentation to consumers includes, in one embodiment, steps of providing a can body blank that has a sidewall that is of a substantially constant diameter; providing a mold unit that has at least one mold wall that defines a mold cavity that is shaped generally like the can body blank, the mold wall having a pattern formed therein that corresponds to a desired final shape of the can body; positioning the can body blank within the mold cavity; and supplying a pressurized fluid into the mold cavity so that the can body blank is forced by pressure against the mold wall, causing the can body blank to assume the desired final shape of the can body.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: October 5, 1999
    Assignee: Crown Cork & Seal Company, Inc.
    Inventors: Mark W. Hartman, Zeev W. Shore, James J. Tang, Anton A. Aschberger, Michael R. Gogola, William O. Irvine, Ralph J. Trnka, Richard O. Wahler, Robert A. Winkless
  • Patent number: 5832766
    Abstract: A method of manufacturing a metallic can body that is shaped distinctively in order to enhance its visual presentation to consumers includes, in one embodiment, steps of providing a can body blank that has a sidewall that is of a substantially constant diameter; providing a mold unit that has at least one mold wall that defines a mold cavity conforming a desired final shape of the can body; positioning the can body blank within the mold cavity; and supplying a pressurized fluid into the mold cavity so that the can body blank is forced by pressure against the mold wall, causing the can body blank to assume the desired final shape of the can body. Axial compression is preferably applied to the can body blank in order to reduce internal stresses during molding of the container.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: November 10, 1998
    Assignee: Crown Cork & Seal Technologies Corporation
    Inventors: Mark W. Hartman, Zeev W. Shore, James J. Tang, Anton A. Aschberger, Michael R. Gogola, William O. Irvine, Ralph J. Trnka, Richard O. Wahler, Robert A. Winkless, Richard Mark Orlando Golding, David Harvey
  • Patent number: 5746080
    Abstract: A method of manufacturing a metallic can body that is shaped distinctively in order to enhance its visual presentation to consumers includes, in one embodiment, steps of providing a can body blank that has a sidewall that is of a substantially constant diameter; providing a mold unit that has at least one mold wall that defines a mold cavity that is shaped generally like the can body blank, the mold wall having a pattern formed therein that corresponds to a desired final shape of the can body; positioning the can body blank within the mold cavity; and supplying a pressurized fluid into the mold cavity so that the can body blank is forced by pressure against the mold wall, causing the can body blank to assume the desired final shape of the can body.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: May 5, 1998
    Assignee: Crown Cork & Seal Company, Inc.
    Inventors: Mark W. Hartman, Zeev W. Shore, James J. Tang, Anton A. Aschberger, Michael R. Gogola, William O. Irvine, Ralph J. Trnka, Richard O. Wahler, Robert A. Winkless
  • Patent number: 4174142
    Abstract: This relates to the mounting of brushes in a rotary electrical joint in a manner wherein the frictional force applied to a brush by a rotary member is restrained so as to eliminate prior tilting of the brush in a manner wherein excessive wear occurred adjacent the leading edge of the brush. Most particularly, the brush is so restrained wherein any tendency thereof to pivot will occur generally about an axis disposed adjacent the leading edge so that there is a uniform force application of the brush against the rotary member and thus a uniform wearing of the brush.
    Type: Grant
    Filed: September 9, 1977
    Date of Patent: November 13, 1979
    Assignee: The Continental Group, Inc.
    Inventors: Carl A. Pesce, Ralph J. Trnka, Robert A. Winkless