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:
Aug. 06, 1991
Filed:
Dec. 12, 1988
Robert F Shea, Florissant, MO (US);
McNeil, St. Paul, MN (US);
Abstract
A composite follower for mounting on a pump tube in a drum to facilitate pumping viscous materials from the drum through the tube. The composite follower includes a generally circular follower body having an outer peripheral edge adapted for slidably but sealingly engaging the walls of the drum. The body further includes a socket generally through the center of the body. The composite follower has an annular insert installed in the socket of the follower body. The insert has a central bore adapted to receive the pump tube through it for enabling the follower to slide axially on the tube with the insert in sealing engagement with the tube. There are fasteners for securing the insert in the socket and a sealing cap for sealing the joint at the intersection of the insert with the follower body.