Patents by Inventor Rolf Prange

Rolf Prange 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: 7972719
    Abstract: A battery assembly (10) has a series of rectangular cells (20) and a square-U shaped tray (14) to support the cells (20) in series, with bottoms (24) coplanar and adjacent sides parallel. The tray (14) has spaced arms (43) for opposing the endmost ones of the series of cells (12) interconnected by a rigid web (41) that provides a generally flat seating surface for the cell bottoms (24). The web (41) has longitudinal tracks (49) which raise above the seating surface of the wen (41) and which extend beneath all the cell bottoms (24). The cell bottoms (24) have counterpart longitudinal channels (52) for self-assembling with the tracks (49) of the web (41) and provide properly aligned seating of the cell bottoms (24) by disallowing lateral displacement but allowing longitudinal sliding order to form as dense as a single-file line-up (12) as possible. The tracks (49) also serve to stiffen the web (41) against sagging or twisting.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: July 5, 2011
    Assignee: EH Europe GmbH
    Inventor: Rolf Prange
  • Publication number: 20080182161
    Abstract: A battery assembly (10) has a series of rectangular cells (20) and a square-U shaped tray (14) to support the cells (20) in series, with bottoms (24) coplanar and adjacent sides parallel. The tray (14) has spaced arms (43) for opposing the endmost ones of the series of cells (12) interconnected by a rigid web (41) that provides a generally flat seating surface for the cell bottoms (24). The web (41) has longitudinal tracks (49) which raise above the seating surface of the wen (41) and which extend beneath all the cell bottoms (24). The cell bottoms (24) have counterpart longitudinal channels (52) for self-assembling with the tracks (49) of the web (41) and provide properly aligned seating of the cell bottoms (24) by disallowing lateral displacement but allowing longitudinal sliding order to form as dense as a single-file line-up (12) as possible. The tracks (49) also serve to stiffen the web (41) against sagging or twisting.
    Type: Application
    Filed: October 5, 2007
    Publication date: July 31, 2008
    Inventor: Rolf Prange
  • Patent number: 4117211
    Abstract: Battery with terminal posts having low resistance, high-strength tubular loop inserts. A lead receptacle encircled by a synthetic plastic molding surrounds the post. A weldment bead is between the post and the lead receptacle. Preferably the top of the post is rectangular and the connector cable crimped into the insert protrudes at about 45.degree. from the battery.
    Type: Grant
    Filed: April 11, 1977
    Date of Patent: September 26, 1978
    Assignee: Varta Batterie Aktiengesellschaft
    Inventors: Heinz Schuster, Rolf Prange