Patents Represented by Attorney Leverfeld Pearlstein, LLC
  • Patent number: 7992580
    Abstract: A combination parts washer for cleaning mechanical parts of oil, grease and contaminants. The washer has a cabinet which has two reservoirs. A parts receptacle in the one of the reservoirs receives the parts which are cleaned by ultrasonic waves. An operable sink for manual cleaning is positioned on the top of the cabinet and opens to access the cabinet and reservoir. Fluid from the sink drains to the first reservoir. In the closed position, the sink covers the top of the cabinet and may be used as a sink washer using the attached brush supplied by fluid from the first reservoir. Initial pre-cleaning may be performed in the sink using the brush. Subsequent precision cleaning may be accomplished by immersion and ultrasonic cleaning in the second reservoir.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: August 9, 2011
    Assignee: Heritage-Crystal Clean, LLC
    Inventors: Ronald H. Bluestone, Ryan J. Bluestone
  • Patent number: D529359
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: October 3, 2006
    Assignee: Global Distribution Management, Inc.
    Inventor: Pei-Ying Lin