Patents by Inventor David Crumrine

David Crumrine 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: 6681973
    Abstract: A waistbelt for stabilizing a load, the load potentially carried within a backpack. The waistbelt may be worn around a user's waist and fastened together by a locking buckle. The waistbelt may be attached to a backpack, as part of a backpack system, by straps that are directly affixed to the waistbelt. The waistbelt may comprise padding that rests on the user's hips. A support region of the waistbelt can minimize shifting and swaying of the load carried in a backpack. The support region of the waistbelt may be extendable, and may be extended by movably attached waistbelt extensions. The waistbelt extensions may reduce reliance upon provide extendable support for varying waist sizes. The waistbelt extensions may reduce reliance upon support from buckling straps, thereby potentially reducing chafing, abrasions, and fatigue to the user.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: January 27, 2004
    Inventor: David A. Crumrine
  • Publication number: 20030034371
    Abstract: A waistbelt for stabilizing a load, the load potentially carried within a backpack. The waistbelt may be worn around a user's waist and fastened together by a locking buckle. The waistbelt may be attached to a backpack, as part of a backpack system, by straps that are directly affixed to the waistbelt. The waistbelt may comprise padding that rests on the user's hips. A support region of the waistbelt can minimize shifting and swaying of the load carried in a backpack. The support region of the waistbelt may be extendable, and may be extended by movably attached waistbelt extensions. The waistbelt extensions may reduce reliance upon provide extendable support for varying waist sizes. The waistbelt extensions may reduce reliance upon support from buckling straps, thereby potentially reducing chafing, abrasions, and fatigue to the user.
    Type: Application
    Filed: August 15, 2001
    Publication date: February 20, 2003
    Inventor: David A. Crumrine
  • Patent number: 5768915
    Abstract: An artifact retaining device for holding a coin or the like in a display structure such as a belt buckle. A bezel with a detent is retained on the outside front surface of the display structure and is held in place by a detent on a retaining member that is inserted through an opening of the belt buckle and engages the detent on the bezel. The bezel and retaining member have display windows through which the front and rear face of the coin can be viewed. The bezel, coin, and retaining member are removable from the buckle.
    Type: Grant
    Filed: May 2, 1996
    Date of Patent: June 23, 1998
    Assignee: Crumrine Manufacturing Jewelers, Inc.
    Inventors: David Crumrine, Daniel J. Mitchell, Matthew A. Taber
  • Patent number: 5758752
    Abstract: Automatically retractable and extendable wheel assembly is disclosed for use in conjunction with luggage cases, especially upright carry-on luggage cases and garment bags. Luggage wheels automatically extend to provide a luggage case which is tilted and with a long wheel base so that the case may comfortably and with stability be pushed or pulled across the floor upon three or more wheels, thereby removing the weight of the case from the user's arm. When the case is removed from the floor, the luggage wheels automatically retract to a protected position, thereby reducing the overall dimensions of the case to permit it to be carried aboard aircraft and stored in overhead luggage bins. Apparatus is disclosed for preventing inadvertent retraction of a wheel when the wheel encounters a pebble or crack in the floor.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: June 2, 1998
    Assignee: Samsonite Corporation
    Inventors: William L. King, David Crumrine
  • Patent number: 5630521
    Abstract: A wheeled upright luggage case is disclosed. The best embodiment of the case has wheels to allow the case to stand upright in a stable and balanced position without attendance by the user. The case has a wheel handle to allow the user to push or pull the case across a supporting surface. The case may be pushed or pulled on either four wheels or two wheels. When four wheels are used, the full weight of the case and its contents are borne by the wheels, relieving the user from having to bear with her arm any of the weight of the luggage. The body of the case is designed to have a specific range of tilt angles from the vertical; by tilting the body of the case toward the user, the design of the case improves the stability of the case while it is pushed across a supporting surface on four wheels. Various case body configurations and push handle arrangements are disclosed.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: May 20, 1997
    Assignee: Samsonite Corporation
    Inventors: Charles E. Waddell, Andrew Zionts, William L. King, Roland E. Mongeau, David Crumrine
  • Patent number: D383604
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: September 16, 1997
    Assignee: Samsonite Corporation
    Inventors: William L. King, Bonnie M. Earl, David A. Crumrine
  • Patent number: D385115
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: October 21, 1997
    Assignee: Samsonite Corporation
    Inventors: Bonnie M. Earl, David A. Crumrine
  • Patent number: D389308
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: January 20, 1998
    Assignee: Samsonite Corporation
    Inventors: William L. King, David A. Crumrine
  • Patent number: D426704
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: June 20, 2000
    Assignee: Samsonite Corporation
    Inventors: William L. King, David A. Crumrine