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US 6,599,096 B1Granted
Steam driven pump
AssigneeArmstrong International, Inc.
InventorsTimothy K. Totten, Matthew R. McNamara
Life of this patent
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AssigneeArmstrong International, Inc.
InventorsTimothy K. Totten, Matthew R. McNamara
Estimating the term…
A pump includes a valve mechanism having an opened position and a closed position. The pump further includes a spring assisted mechanism for selectively moving the valve mechanism between the opened position and the closed position, and a fluid detector for detecting the level of a pumping fluid. The fluid detector is pivotally connected to the spring assisted mechanism and has a first range of pivotal travel and a second range of pivotal travel. The fluid detector further engages a spring of the spring assisted mechanism only at one portion of the first range of pivotal travel, and engages the spring of said spring assisted mechanism only at one portion of the second range of pivotal travel. The fluid detector is disengaged from the spring of the spring assisted mechanism at all other portions of the first range of pivotal travel and of the second range of pivotal travel.
A pump for pumping fluid comprising:
A pump for pumping fluid comprising:
A pump for pumping fluid comprising:
The pump according to claim wherein 9 said valve mechanism includes a pressure release valve, said actual or assembly actuating said pressure relief valve between the opened and the closed positions.
Dependencies are inferred from the claim text.