Pump

F - Mech Eng,Light,Heat,Weapons – 04 – B

Patent

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103/52

F04B 19/02 (2006.01) F04B 7/04 (2006.01) F04B 47/02 (2006.01) F04B 53/12 (2006.01)

Patent

CA 1261677

- 1a - ABSTRACT A pump having a hollow body having an inlet controlled by a first non-return valve which permits the entry of fluid into the body, said pump being characterised by a pipe, one of which extends into the hollow body, said pipe being slidably received within said body, a seal being located between the hollow body and the pipe, a second non-return valve within said pipe to permit the entry of fluid from within the body to the pipe past the second non-return valve, and drive means to cause relative reciprocation between the pipe and the body.

483783

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