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:
Sep. 23, 1980
Filed:
Oct. 04, 1978
Applicant:
Inventors:
Manfred Knuth, Hamburg, DE;
Thorsten Homann, Hamburg, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B30B / ;
U.S. Cl.
CPC ...
100117 ; 198676 ; 228165 ;
Abstract
A pressing worm or screw, especially for filter presses of the type used to press liquids from solids, e.g. oils from eatable-oil-bearing seeds, is formed with an outwardly opened groove along its flight or thread which is filled with a harder metal than the flight by deposit welding.