Patents by Inventor Jeffrey Bertelsen

Jeffrey Bertelsen 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).

  • Publication number: 20070261893
    Abstract: A power slip that utilizes modified SDXL slips and regular drilling bowls that fits to the pin drive master bushings of the rotary table and utilizes the depth of the drive pin holes as part of the actuators, thus allowing the power slip to set lower for added clearance and safety during drilling operations. Cables are anchored to a base plate and slip linkages and slip connectors are pivotally mounted to the slips and to the top plate so that, when the lift cylinders are actuated, the slips are moved to the released position. This two-stage linkage and cable design maximizes the movement of the slip assemblies with minimum vertical movement of the power slip's housing.
    Type: Application
    Filed: April 29, 2006
    Publication date: November 15, 2007
    Inventors: Frank Campisi, Jeffrey Bertelsen
  • Patent number: 6604617
    Abstract: A luggage item has a frame that includes a top pan and a bottom pan that are joined by towing bar-receiving tubes. A body of flexible material is fitted to the frame. The frame and body are free of elements along the top wall, bottom wall and the side walls that inhibit folding of the top wall, bottom wall and the side walls along fold lines intermediate the front wall and back wall so that the front part of the bag can be collapsed toward the back wall to substantially reduce the volume of the bag.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: August 12, 2003
    Assignee: Tumi, Inc.
    Inventors: Robert P. Davis, Jeffrey A. Bertelsen
  • Publication number: 20020125089
    Abstract: A luggage item has a frame that includes a top pan and a bottom pan that are joined by towing bar-receiving tubes. A body of flexible material is fitted to the frame. The frame and body are free of elements along the top wall, bottom wall and the side walls that inhibit folding of the top wall, bottom wall and the side walls along fold lines intermediate the front wall and back wall so that the front part of the bag can be collapsed toward the back wall to substantially reduce the volume of the bag.
    Type: Application
    Filed: March 7, 2001
    Publication date: September 12, 2002
    Applicant: Tumi, Inc.
    Inventors: Robert P. Davis, Jeffrey A. Bertelsen
  • Patent number: 5330049
    Abstract: A garment bag is provided with a single reinforcing member which extends across the top end of the bag. A carrying handle, a hanger for hanging the bag from a support, and a trolley for hanging garments within the garment bag are all connected directly to the reinforcing member so that the reinforcing member supports the entire weight of the garment bag and its contents both when the bag is hanging in an extended configuration from a support and when the bag is being carried from place to place in a folded configuration. A stiffening member which extends across the width of the bag in the bottom portion thereof and which lies adjacent the top end of the bag when the bag is in a folded configuration prevents the bottom portion of the bag from sagging to present a neat appearance. The use of a single reinforcing member enables the garment bag to be lighter in weight, easier to use and less costly to manufacture.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: July 19, 1994
    Assignee: Tumi Luggage, Inc.
    Inventors: Jeffrey A. Bertelsen, Robert P. Davis
  • Patent number: D492115
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: June 29, 2004
    Assignee: Tumi, Inc.
    Inventors: Jeffrey A. Bertelsen, Robert P. Davis
  • Patent number: D365978
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: January 9, 1996
    Assignee: TUMI
    Inventors: Richard J. Rekuc, Jeffrey Bertelsen