Improvements in and relating to devices for dispensing fluids from containers

Abstract

Abstract 891,908. Reciprocating dispensing pumps. WESTON, S. B., and CHESEBROUGHPOND'S Ltd. May 27, 1960 [July 28, 1959], No. 25789/59. Class 102(1). A dispensing device for fluid, comprising a manually operable, spring- loaded, axially movable cylinder 12 which is a sliding fit on a coaxial tubular fixed piston 7 mounted coaxially in a central recess in an annular closure cap 3 for the container, and the end of the cylinder which fits around the piston enters the recess and is retained therein by a flange 14 of the cap, and a radial flange 6 on the piston, so that the stroke of the cylinder is limited by the depth of the recess the piston and cylinder having associated therewith respectively an inlet port and an outlet port, each with a non- return value. An annular disc 10 floats as an atmospheric pressure plate on the fluid in the container.

Inventors

No inventors recorded.

Bibliographic Details