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. 16, 1993
Filed:
Dec. 31, 1991
Charles L Rescorla, Plymouth, MN (US);
Irving F Snyder, Blaine, MN (US);
Graco Inc., Minneapolis, MN (US);
Abstract
A rotary agitator for use in sealed containers such as drums having a single bung opening. The agitator is provided with a housing which screws into the bung opening and appending from the housing is a rotating hollow shaft having a helical agitator flight or other agitator member which may be inserted through the bung opening. Material from inside the drum or container may be withdrawn upwardly through the hollow shaft and then outwardly through a port in the housing. A check valve is provided in the housing which communicates with the interior of the container in which to allow pressure equalization in the container which may be connected to a source of inert gas or the like to prevent degradation or other harm to the material in the drum which might be caused by ambient atmosphere.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile