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. 17, 1976
Filed:
Feb. 19, 1974
Applicant:
Inventors:
Wolfgang Krambrock, Ravensburg, DT;
Paul Lubbehusen, Ravensburg-Durnast, DT;
Hans-Jurgen Huck, Obereschach, DT;
Assignee:
Waeschle Maschinenfabrik GmbH, Ravensburg, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
302 42 ; 134 37 ; 302 49 ; 302 64 ; 302 66 ;
Abstract
A method for pneumatically conveying material through a conveyor conduit comprises automatically interposing into the conveying operation cleaning phases in which no material is introduced into the conduit, to remove material previously deposited in the conduit. Apparatus has a timing means which rhythmically interrupts the introduction of material, and the strength of the air flow in the cleaning phases can be greater than that of the air flow during the conveying phases.