F - Mech Eng,Light,Heat,Weapons – 16 – N
Patent
F - Mech Eng,Light,Heat,Weapons
16
N
222/80, 222/10.5
F16N 5/00 (2006.01) F04B 9/127 (2006.01) F16N 11/10 (2006.01)
Patent
CA 1103627
ABSTRACT A compressed-air operated dispenser for continuously dispensing a substance enclosed in a container, and in particular a viscous or paste-like substance, said dispenser comprising an outlet passage extending from said container to an outlet; a valve which normally closes said passage; a com- pressed-air operated piston arranged to exert pressure on said substance in said passage and to open said valve; and means for initiating the supply of compressed air for the purpose of operating said piston. In accordance with the invention there is provided a valve means arranged to move the piston to a starting position in which a pressure-actuating chamber is closed on one side of the piston with the exception of a passage through which compressed air can be forced into the chamber to cause the piston to move to a first ter- minal position. In this position the substance is subjected to pressure and the valve is opened and the piston ceases to act on the valve means. An air- return passage is opened to cause the valve means to be moved to a second position, in which an exhaust hole for compressed air in said chamber is pla- ced in communication with atmosphere and the piston returns to a second ter- minal position in which it causes the valve means to return to its starting position.
337085
Andersson Morgan
Fetherstonhaugh & Co.
LandOfFree
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