Patents by Inventor Jack P. Christen

Jack P. Christen 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: 6363574
    Abstract: A vacuum cleaner includes a tank assembly having an open end, a cap assembly removably connected to and generally closing off the open end, an inlet assembly disposed on one of the tank and cap assemblies, an exit opening disposed on one of the tank and cap assemblies, a vacuum source connected to one of the tank and cap assemblies for drawing process air through the inlet assembly, a filter assembly disposed between the inlet assembly and the exit opening, the filter assembly comprising a filter, and a filter bag assembly covering at least part of the filter, wherein the filter bag assembly comprises a filter bag and a drain tube connected to the filter bag. Preferably, the drain tube is integrally built into the filter bag.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: April 2, 2002
    Assignee: Pullman-Holt Corporation
    Inventors: Michael Worden, Curt J. Schulze, Jon Brigner, Jack P. Christen
  • Publication number: 20010005919
    Abstract: A vacuum cleaner includes a tank assembly having an open end, a cap assembly removably connected to and generally closing off the open end, an inlet assembly disposed on one of the tank and cap assemblies, an exit opening disposed on one of the tank and cap assemblies, a vacuum source connected to one of the tank and cap assemblies for drawing process air through the inlet assembly, a filter assembly disposed between the inlet assembly and the exit opening, the filter assembly comprising a filter, and a filter bag assembly covering at least part of the filter, wherein the filter bag assembly comprises a filter bag and a drain tube connected to the filter bag. Preferably, the drain tube is integrally built into the filter bag.
    Type: Application
    Filed: February 26, 2001
    Publication date: July 5, 2001
    Applicant: Black & Decker Inc.
    Inventors: Michael Worden, Curt J. Schulze, Jon Brigner, Jack P. Christen
  • Patent number: 6219880
    Abstract: A vacuum cleaner includes a tank assembly having an open end, a cap assembly removably connected to and generally closing off the open end, an inlet assembly disposed on one of the tank and cap assemblies, an exit opening disposed on one of the tank and cap assemblies, a vacuum source connected to one of the tank and cap assemblies for drawing process air through the inlet assembly, a filter assembly disposed between the inlet assembly and the exit opening, the filter assembly comprising a filter, and a filter bag assembly covering at least part of the filter, wherein the filter bag assembly comprises a filter bag and a drain tube connected to the filter bag. Preferably, the drain tube is integrally built into the filter bag.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: April 24, 2001
    Assignee: Pullman-Holt Corporation
    Inventors: Michael Worden, Curt J. Schulze, Jon Brigner, Jack P. Christen
  • Patent number: 5594975
    Abstract: A handle for a tool such as a lobby dustpan is provided. The handle is preferably mounted on a vertical shaft of the tool. The handle may be placed in either a locked position or an unlocked position. In the locked position the handle is rigidly connected to the shaft. In the unlocked position the handle moves freely with respect to the shaft.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: January 21, 1997
    Assignee: White Mop Wringer Company
    Inventor: Jack P. Christen
  • Patent number: 4029319
    Abstract: An arrowhead fabricated from two separate blades arranged at cross angles to one another and held in position by a collet, the collet having a cooperating cam sleeve for detachably locking the blades together in a rigid manner. A threaded insert is provided for the collet by means of which the latter can be removed from and attached to the arrow shaft and provides for withdrawing the arrowhead assembly from the game and for disassembly of the arrowhead for sharpening or repair purposes.
    Type: Grant
    Filed: April 16, 1976
    Date of Patent: June 14, 1977
    Assignee: Outers Laboratories, Inc.
    Inventor: Jack P. Christen
  • Patent number: D422386
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: April 4, 2000
    Assignee: Pullman-Holt Corporation
    Inventors: Philip Jaros, Donald W. Zurwelle, Jeffrey J. Baker, Jon Brigner, Jack P. Christen, Robert J. Eukovich, Robert R. Schneider, Curt J. Schulze, Michael W. Worden