Patents by Inventor Hans Peter Michael

Hans Peter Michael 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).

  • Level probe for powder container
    Patent number: 6634227
    Abstract: The invention relates to a level detecting system for a powder container of a powder-coating apparatus. It contains an inductive proximity sensor (22) and an electrically insulating membrane (28) which is displaceable to-and-fro the proximity sensor and which is fitted on its inside surface opposite the proximity sensor with a metallic element (32) affixed to it and affecting the magnetic properties of the proximity sensor. The level detecting system operates regardless of any powder particles adhering to it.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: October 21, 2003
    Assignee: ITW Gema AG
    Inventors: Guido Rutz, Hans Peter Michael
  • Powder spray coating device
    Patent number: 6598803
    Abstract: A spray powder-coating apparatus fitted with an electronic control system (21) regulating the air flows (20, 43) to an injector (4) as a function of setpoints (m) for the rates of powder to be moved, and as a function of a setpoint (GV) for the total rate of air passing through the nozzle, by means of motor-driven adjustable throttles (18, 19, 44, 45), preferably also as a function of the actual values (89, 90) of the regulated air flows (20, 43).
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: July 29, 2003
    Assignee: ITW Gema AG
    Inventors: Gerald Haas, Felix Mauchle, Hans Peter Michael
  • Powder coating device
    Patent number: 6589341
    Abstract: A powder coating system comprising at least one throttle unit (10) which is adjusted by an electric motor, preferably a stepping motor (6) through a bellows connector (12).
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: July 8, 2003
    Assignee: ITW Gema AG
    Inventor: Hans Peter Michael
  • Powder coating equipment having zero-sum control of conveyance and supplement air lines
    Patent number: 6443670
    Abstract: Powder-coating equipment comprises two throttles (6, 16) each mounted in one of a conveyance-air line (8) and a supplemental-air line (18). The throttles' flow impedance’ are adjustable in a motorized manner by providing throttle with its own adjustment motor (4, 14). The adjustment motors, such as electric stepping motors and/or servo-motors are driven by an electronic control unit (2).
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: September 3, 2002
    Assignee: ITW Gema AG
    Inventors: Gerald Haas, Hans Peter Michael
  • Conveying injector
    Patent number: 6196269
    Abstract: A powder-conveying injector to move coating powder and wherein the jet catching duct(8) of the conveying jet nozzle (4) is made of glass.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: March 6, 2001
    Assignee: ITW Gema AG
    Inventors: Hans Peter Michael, Gerald Haas