Patents by Inventor Don Knill

Don Knill 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).

  • Parts washer with improved temperature and pump control
    Patent number: 7040161
    Abstract: A parts washer including a receptacle positioned on a reservoir for cleaning liquid having a drain opening and a module which engages a portion of the reservoir in the cleaning liquid for adjusting the temperature of the cleaning liquid and circulating the cleaning liquid into the receptacle. The module includes a heating element, a sensor and pump. An enclosure houses a temperature controller which displays the temperature of the cleaning liquid and a low liquid level condition. A bridge thermally links the heating element to the sensor so that the sensor normally generates a signal representative of the temperature of the cleaning fluid unless the level of the cleaning fluid is disposed below the sensor.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: May 9, 2006
    Assignee: Safety-Kleen Systems, Inc.
    Inventors: Rudy Publ, Brian Porter, Michael Korkowski, Don Knill
  • Parts washer with improved temperature & pump control
    Publication number: 20050126592
    Abstract: A parts washer including a receptacle positioned on a reservoir for cleaning liquid having a drain opening and a module which engages a portion of the reservoir in the cleaning liquid for adjusting the temperature of the cleaning liquid and circulating the cleaning liquid into the receptacle. The module includes a heating element, a sensor and pump. An enclosure houses a temperature controller which displays the temperature of the cleaning liquid and a low liquid level condition. A bridge thermally links the heating element to the sensor so that the sensor normally generates a signal representative of the temperature of the cleaning fluid unless the level of the cleaning fluid is disposed below the sensor.
    Type: Application
    Filed: January 28, 2005
    Publication date: June 16, 2005
    Inventors: Rudy Publ, Brian Porter, Michael Korkowski, Don Knill
  • Parts washer with improved temperature and pump control
    Patent number: 6874512
    Abstract: A parts washer including a receptacle positioned on a reservoir for cleaning liquid having a drain opening and a module which engages a portion of the reservoir in the cleaning liquid for adjusting the temperature of the cleaning liquid and circulating the cleaning liquid into the receptacle. The module includes a heating element, a sensor and pump. An enclosure houses a temperature controller which displays the temperature of the cleaning liquid and a low liquid level condition. A bridge thermally links the heating element to the sensor so that the sensor normally generates a signal representative of the temperature of the cleaning fluid unless the level of the cleaning fluid is disposed below the sensor.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: April 5, 2005
    Assignee: Safety-Kleen Systems, Inc.
    Inventors: Rudy Publ, Brian Porter, Michael Korkowski, Don Knill
  • Parts washer with improved temperature & pump control
    Publication number: 20040200504
    Abstract: A parts washer including a receptacle positioned on a reservoir for cleaning liquid having a drain opening and a module which engages a portion of the reservoir in the cleaning liquid for adjusting the temperature of the cleaning liquid and circulating the cleaning liquid into the receptacle. The module includes a heating element, a sensor and pump. An enclosure houses a temperature controller which displays the temperature of the cleaning liquid and a low liquid level condition. A bridge thermally links the heating element to the sensor so that the sensor normally generates a signal representative of the temperature of the cleaning fluid unless the level of the cleaning fluid is disposed below the sensor.
    Type: Application
    Filed: April 10, 2003
    Publication date: October 14, 2004
    Inventors: Rudy Publ, Brian Porter, Michael Korkowski, Don Knill