초록 ▼

A firefighting monitor having an acceleration sensitive shut off valve that responds to acceleration of the monitor to reduce water flow through the monitor. The acceleration sensitive shut off valve is self-contained and requires no contact with an external surface or device. The valve closing spee

A firefighting monitor having an acceleration sensitive shut off valve that responds to acceleration of the monitor to reduce water flow through the monitor. The acceleration sensitive shut off valve is self-contained and requires no contact with an external surface or device. The valve closing speed may be modulated by a dampener device that slows the rate at which the valve closes to avoid damage from water hammer.

대표청구항 ▼

1. A valve having an open position and a closed position, the valve being biased toward the closed position and comprising:a housing defining a recess; a handle operatively mounted to the housing for moving the valve to the open position; a sear for engaging the handle when the valve is in the open

1. A valve having an open position and a closed position, the valve being biased toward the closed position and comprising:a housing defining a recess; a handle operatively mounted to the housing for moving the valve to the open position; a sear for engaging the handle when the valve is in the open position; a sear spring for urging the sear into engagement with the handle when the valve is in the open position; a release for disengaging the sear from the handle; and a bearing member disposed in the recess of the housing and in bearing support of the release when the valve is in the open position, whereby movement of the valve at an acceleration above a pre-determined level dislodges the bearing member from the recess, removes support of the release, disengages the sear from the handle, and moves the valve toward the closed position.