Patents Assigned to Pearl Star Co., Ltd.
  • Purging apparatus for removing dirt from washing machine
    Patent number: 6449990
    Abstract: A dirt and oil removing apparatus that is placed in the tub of a household or industrial washer for reducing or eliminating the need for detergent. The dirt and oil removing apparatus includes a water permeable receptacle made of a lipophilic fiber, which absorbs oil or oil like liquids. The receptacle holds pieces of inorganic material for absorbing or adsorbing dirt and pieces of lightweight material for decreasing the density of the apparatus as a whole. Preferably, the density of the apparatus as a whole is about 0.90 to about 0.93.
    Type: Grant
    Filed: May 21, 2000
    Date of Patent: September 17, 2002
    Assignees: Hinomaru Carbotechno Co., Ltd, Pearl Star Co., Ltd.
    Inventors: Yoshitaka Kawajiri, Mitsuo Shintaku