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. 23, 1991
Filed:
Jun. 26, 1989
Applicant:
Inventor:
Roy Swartz, Muncy, PA (US);
Assignee:
Delaware Investments Corp., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
406128 ; 406127 ; 406 30 ; 406 32 ; 222368 ;
Abstract
A system for handling particulate material includes a rotary valve for feeding material from a holding device to a receiving device. The rotary valve includes a slide valve that is electrically controlled in response to sensed conditions in the handling system.