Patents by Inventor Kevin Rak

Kevin Rak 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).

  • Hazardous material liquid dispensing system and method
    Patent number: 5607000
    Abstract: A non-venting hazardous material liquid dispensing system (25) includes a removable supply vessel (7) coupled to a gas source (1) and a permanent buffer vessel (11). The permanent buffer vessel (11) is additionally coupled through a suction pump (14) to the removable supply vessel (7). The suction pump (14) suctions pressure off the permanent supply vessel (11), transferring the pressure to removable supply vessel (7). The transfer of pressure causes hazardous material liquid (34) to be drawn from the removable supply vessel (7) into permanent buffer vessel (11). The permanent buffer vessel (11) dispenses hazardous material liquid (34) to a process tool.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: March 4, 1997
    Assignee: Motorola, Inc.
    Inventors: Jerry D. Cripe, Michael P. Menchio, Kevin Rak