초록 ▼

An automatic hose clamp is provided particularly for use with fire hoses, and is manually engaged on a fire hose which is subsequently attached to a fire hydrant, there being a trickle flow allowed past the clamp so that the downstream end of the hose, if unconnected to anything, will dissipate this

An automatic hose clamp is provided particularly for use with fire hoses, and is manually engaged on a fire hose which is subsequently attached to a fire hydrant, there being a trickle flow allowed past the clamp so that the downstream end of the hose, if unconnected to anything, will dissipate this trickle, but upon being connected to the fire truck pumping unit the downstream end fills and exerts back pressure on a specially oriented plate in the clamp, finally resulting in the popping free of the clamp due to the expansion of the hose against the plate so that water is free to flow at this point unobstructed by the clamp. Previously a manually operated clamp was used requiring the presence of a fireman to turn a wheel or otherwise operate the valve actuator to release the clamp once the hose had been connected to the main pump.

대표청구항 ▼

An automatic hose clamp for engaging a hose, comprising: (a) a clamp assembly for said hose defining upstream and downstream hose portions adjacent thereto and being operable between a first position substantially restricting the flow of fluid through said hose and a second position substantially cl

An automatic hose clamp for engaging a hose, comprising: (a) a clamp assembly for said hose defining upstream and downstream hose portions adjacent thereto and being operable between a first position substantially restricting the flow of fluid through said hose and a second position substantially clear of said hose; (b) release means adjacent to the downstream portion of said hose and responsive to the expansive pressure of same as it changes from a flaccid to a turgid state to move said clamp assembly into its second position substantially clear of said hose to permit free flow there through; (c) said clamp assembly including a casing defining a hose corridor and a clamp bar movable to compress said hose against said casing in said first position; and (d) said bar defining two end portions and a central gate, and including an actuator for displacing said gate relative to said end portions to permit the trickling of a fluid through the hose adjacent said gate.