Pumps – Successive stages – Reciprocating rigid stages
Patent
1997-05-19
1999-02-23
Thorpe, Timothy
Pumps
Successive stages
Reciprocating rigid stages
417467, 417469, F04B 1902
Patent
active
058737057
ABSTRACT:
A tire pump includes a head portion with a tubular portion extending therefrom and a main passage is defined through the head portion and communicates with the tubular portion, a connecting member slidably mounted to the tubular portion and having at least one first passage defined therethrough, a first cylinder retractably mounted to the tubular portion and having one of two ends fixedly connected to the connecting member and a first member slidably received therein which is fixedly connected to a free end of the tubular portion and detachably connected to the connecting member by an actuating device and has a uni-directional valve disposed therein. At least one second cylinder is retractably mounted to the first cylinder and has a second member slidably received therein which has a uni-directional valve disposed therein and a portion fixedly received in the other end of the first cylinder. A third member is fixedly received in the second cylinder and has a uni-directional valve disposed thereto.
REFERENCES:
patent: 5443370 (1995-08-01), Wang
Baxley Esq. Charles E.
Thorpe Timothy
Tyler Cheryl J.
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