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:
Feb. 15, 1983
Filed:
Jan. 26, 1981
Applicant:
Inventors:
Assignee:
Hitachi Kiden Kogyo, Ltd., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B30B / ;
U.S. Cl.
CPC ...
100 37 ; 100 45 ; 100 47 ; 100 49 ; 100 51 ; 100121 ; 100139 ; 100170 ; 100156 ;
Abstract
A method and an apparatus for dewatering screenings collected at a sewage treatment plant or the like continuously and effectively by preliminary and secondary dewatering processes. Any alien substance mixed in the screenings such as stone, chips of wood, etc. which cannot be dewatered can be detected automatically and extracted immediately, without suspending the operation of the apparatus.