The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 1986
Filed:
May. 09, 1983
Utaro Sakai, Hamamatsu, JP;
Maruchi Koken Kabushiki Kaisha, Hamamatsu, JP;
Abstract
An oil separation method and apparatus for separation by coarse particulation which includes the steps of forming a coarse particulating element with an oil water separation layer which includes forming a water insoluble hydrogel which has an oil resisting and oil repelling function as well as water permeating and absorbing function on the surface of a porous material and/or the surface of a fluid passage to be contacted with oil holding water and alternately passing the oil holding water through the surface of the element to perform coarse particulation separation of oil at the surface of the element. The oil water separation device corresponding thereto includes at least one coarse particulating element forming a layer which include a non-water soluble hydrogel layer with an oil water separation function and having both an oil resisting and oil repelling function as well as a water permeating and water absorbing function and a mechanism for passing oil holding water alternately from one side or the other of the element.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile