Patents by Inventor Dan K. Schaefer

Dan K. Schaefer 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: 7044202
    Abstract: A cooler for electronic devices provides cool air to the inlet sides of the heat sink by using a radial blower with blades located around air outlets of the heat sink. This blower is driven by a brushless DC electric motor. The motor has an opening in the center allowing for the transfer of incoming air to the center of the heat sink. The rotors outer circumferential arrayed poles are rigidly secured to the frame of the radial blower. The stator of the motor is rigidly secured to the heat sink and has an opening in its center. The stator comprises circumferential arrayed coils on circuit board material. When the current flows through the stator coils, the coils acquire a magnetic polarity. The poles of the rotor and stator coils attract and repel depending on the polarities. The cool air comes simultaneously from opposite sides of the heat sink. For this reason the heat sink has a divider located approximately in the middle of the heat sink fins.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: May 16, 2006
    Assignee: ROTYS Inc.
    Inventors: Edward L. Lopatinsky, Dan K. Schaefer, Saveliy T. Rosenfeld, Lev A. Fedoseyev
  • Publication number: 20040094290
    Abstract: A cooler for electronic devices provides cool air to the inlet sides of the heat sink by using a radial blower with blades located around air outlets of the heat sink. This blower is driven by a brushless DC electric motor. The motor has an opening in the center allowing for the transfer of incoming air to the center of the heat sink. Th rotors outer circumferential arrayed poles are rigidly secured to the frame of the radial blower. The stator of the motor is rigidly secured to the heat sink and has an opening in its center. The stator comprises circumferential arrayed coils on circuit board material. When the current flows through the stator coils, the coils acquire a magnetic polarity. The poles of the rotor and stator coils attract and repel depending on the polarities. The cool air comes simultaneously from opposite sides of the heat sink. For this reason the heat sink has a divider located approximately in the middle of the heat sink fins.
    Type: Application
    Filed: April 21, 2003
    Publication date: May 20, 2004
    Inventors: Edward L. Lopatinsky, Dan K Schaefer, Saveliy T Rosenfeld, Lev A Fedoseyev
  • Publication number: 20030048013
    Abstract: According to the present invention, a cooler for electronic devices comprises a heat exchange element, a blower with a radial type impeller, and an electric drive. The heat exchange element comprises heat exchanging means made on one surface of said heat exchange element while its other surface provides thermal contact with a heat-radiating means. The radial type impeller has a shroud with a flat surface from one side, a hub and brackets and a central inlet between the shroud and the hub, the brackets connect the hub with the shroud. The radial type impeller is positioned on the heat exchange element so that the heat exchanging means being surrounded by the radial type impeller and a cooling gas flows to the radial type impeller from the central inlet through the heat exchanging means.
    Type: Application
    Filed: August 27, 2001
    Publication date: March 13, 2003
    Applicant: ADVANCED ROTARY SYSTEMS, LLC
    Inventors: Edward L. Lopatinsky, Lev A. Fedoseyev, Dan K. Schaefer, Saveliy T. Rosenfeld, Yuri I. Fedosov, Viktor N. Popov, Nil N. Askhatov