Patents by Inventor Steven Kolste

Steven Kolste 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).

  • Injection-molding system and method
    Patent number: 7648669
    Abstract: A method of injection molding at least one part in a single mold having therein at least one cavity, the method comprising providing first and second injection molding devices, using the first injection molding device to inject material into the single mold, and thereafter using the second injection molding device to inject material into the single mold.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: January 19, 2010
    Assignee: Bemis Manufacturing Company
    Inventors: Peter Bemis, Gary Vande Berg, Steven Kolste
  • Injection-molding system and method
    Publication number: 20060113710
    Abstract: A method of injection molding at least one part in a single mold having therein at least one cavity, the method comprising providing first and second injection molding devices, using the first injection molding device to inject material into the single mold, and thereafter using the second injection molding device to inject material into the single mold.
    Type: Application
    Filed: November 30, 2005
    Publication date: June 1, 2006
    Applicant: Bemis Manufacturing Company
    Inventors: Peter Bemis, Gary Berg, Steven Kolste
  • Co-injection methods using endothermic-blowing agents and products made therefrom
    Patent number: 6964748
    Abstract: The invention provides a method of co-injection molding. The method includes mixing a plastic inner material and an endothermic-blowing agent to form a core mixture. A plastic outer material is injected from a first injection unit into a co-injection manifold to create a flow of outer material therethrough. The core mixture is injected from a second injection unit into the co-injection manifold to create a flow of core mixture therethrough. The flow of the outer material and the flow of the core mixture are then controlled through the co-injection manifold and into a mold cavity. The core mixture expands as heat is provided for the endothermic-blowing agent to absorb.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: November 15, 2005
    Assignee: Bemis Manufacturing Company
    Inventors: Peter F. Bemis, Gary Vande Berg, Steven Kolste
  • Co-injection methods using endothermic-blowing agents and products made therefrom
    Publication number: 20020079603
    Abstract: The invention provides a method of co-injection molding. The method includes mixing a plastic inner material and an endothermic-blowing agent to form a core mixture. A plastic outer material is injected from a first injection unit into a co-injection manifold to create a flow of outer material therethrough. The core mixture is injected from a second injection unit into the co-injection manifold to create a flow of core mixture therethrough. The flow of the outer material and the flow of the core mixture are then controlled through the co-injection manifold and into a mold cavity. The core mixture expands as heat is provided for the endothermic-blowing agent to absorb.
    Type: Application
    Filed: November 30, 2001
    Publication date: June 27, 2002
    Applicant: Bemis Manufacturing Company
    Inventors: Peter F. Bemis, Gary Vande Berg, Steven Kolste
  • Handbasket
    Patent number: D738624
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: September 15, 2015
    Assignee: Bemis Manufacturing Company
    Inventors: Steven Kolste, Gary Vande Berg, Roy Watson, Richard Stauff