Composite follower

Details Composite follower Composite follower

1988-12-12

1991-08-06

Kashnikow, Andres

Dispensing

With discharge assistant

Container with follower

220 93, 222391, B67D 542

Patent

active

050370090

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.

REFERENCES:
patent: 1723269 (1929-08-01), Davis
patent: 2388391 (1945-11-01), Czerner
patent: 3327906 (1967-06-01), Gormann
patent: 3781942 (1974-01-01), Coleman
patent: 3984034 (1976-10-01), Cohen
patent: 4471892 (1984-09-01), Coleman
patent: 4684042 (1987-08-01), Strickler et al.

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