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:
Apr. 14, 1981
Filed:
May. 25, 1979
Applicant:
Inventors:
Philip Edwards, Rowton, Chester, Cheshire, GB;
Robert E Spencer, Transvaal, ZA;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B07B / ;
U.S. Cl.
CPC ...
209321 ; 209357 ;
Abstract
In a sieving apparatus a suction chamber is connected to a source of vacuum. The chamber is connected to sieve by a plurality of air channels. Air inlets supply air to the underside of the sieve to agitate the material being sieved. A sieve case has a cover with apertures to permit more air to enter the sieve case to further agitate the material being sieved.
Edwards, Philip. (1981). Sieving (U.S. Patent No. 4261817). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4261817
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile