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:
Mar. 30, 1976
Filed:
Mar. 28, 1974
Applicant:
Inventor:
Hans Oetiker, St. Gallen, CH;
Assignee:
Gebruder Buhler AG, Uzwil, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B67D / ; H01H / ;
U.S. Cl.
CPC ...
222 56 ; 200 6121 ;
Abstract
A feeler is moved in a defined space at a predetermined level in alternately opposite directions. If the level of particulate material in the space reaches or exceeds the predetermined level, the movement of the feeler encounters resistance which is sensed, and in dependence of which the level of the particulate material in the space is controlled.