Patents by Inventor James Christopher Hempker

James Christopher Hempker 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: 7496979
    Abstract: A vertically moveable patient table is provided with a footrest extension that may be locked in either an operative, extended position or a stowed position beneath an adjacent leg section of the table. In the stowed position the footrest extension actuates a switch which permits the table to be moved freely up and down. However, when the footrest extension is in any position other than stowed, movement of the table is restricted to prevent accidental contact of the footrest extension with a floor or other supporting surface as the table is lowered.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: March 3, 2009
    Assignee: Midmark Corporation
    Inventor: James Christopher Hempker
  • Publication number: 20090000033
    Abstract: A vertically moveable patient table is provided with a footrest extension that may be locked in either an operative, extended position or a stowed position beneath an adjacent leg section of the table. In the stowed position the footrest extension actuates a switch which permits the table to be moved freely up and down. However, when the footrest extension is in any position other than stowed, movement of the table is restricted to prevent accidental contact of the footrest extension with a floor or other supporting surface as the table is lowered.
    Type: Application
    Filed: June 27, 2007
    Publication date: January 1, 2009
    Inventor: James Christopher Hempker
  • Patent number: 7137161
    Abstract: A transportation cart for relocating a medical examination chair or table comprises a chassis having an open end that defines a receiving area for positioning a base of a medical examination table therebetween. A table support member extends upwardly from the chassis to engage structural portions of the examination table, such that the table may be supported thereon when the table is lowered to rest on the table support member. With the weight of the table supported by the cart, the base may be further actuated so that it is raised from the floor. Thereafter, the transportation cart may be maneuvered to relocate the table as desired. To place the table at the new location, the base is lowered to engage the floor and raise the table from the cart.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: November 21, 2006
    Assignee: Midmark Corporation
    Inventors: James Christopher Hempker, Joseph P. Schlater