Pressure testing pump

Details Pressure testing pump Pressure testing pump

1992-03-30

1993-06-22

Bertsch, Richard A.

Pumps

Expansible chamber type

Moving cylinder

417464, F04B 1902

Patent

active

052211959

ABSTRACT:
A hand lever actuated pump for testing a water line for leaks by pumping water into the line under pressure comprises a container for water to be pumped and a hand lever actuated piston and cylinder type pump having suction and discharge strokes in response to displacement of the hand lever in opposite directions about a lever axis. The piston and cylinder components of the pump are pivotally supported on the container and interconnected with the hand lever so as to provide a high flow rate during the initial part of the discharge stroke and a progressively increasing leverage for displacing the piston during the discharge stroke to provide high pressure discharge at the end of the discharge stroke with a low force application to the hand lever.

REFERENCES:
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patent: 2910875 (1959-11-01), Kuhnhausen
patent: 3263515 (1966-08-01), Adamski
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patent: 4289458 (1981-09-01), Price
patent: 4323009 (1982-04-01), Voigt
patent: 4385528 (1983-05-01), Pauwels
patent: 4386537 (1983-06-01), Lewis
patent: 4671746 (1987-06-01), Sessody
Ridge Tool Company catalog sheet "Model 1425 Pressure Testing Pump", Apr. 1991.
Ridge Tool Company "1425 Pressure Testing Pump Operator's Manual", 3 pages, Jan. 1991.

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