Fluent material handling – with receiver or receiver coacting mea – Automatic control of flow cutoff or diversion – Level or overflow responsive
Patent
1989-01-19
1990-04-03
Shaver, Kevin P.
Fluent material handling, with receiver or receiver coacting mea
Automatic control of flow cutoff or diversion
Level or overflow responsive
137463, 141225, B65B 328
Patent
active
049132008
ABSTRACT:
A liquid dispensing nozzle (10) with a pump pressure responsive automatic shut-off mechanism. The nozzle (10) comprises a body (12) with an internal passageway (13) therethrough defining an inlet port (14) for being connected to a dispensing pump and an outlet port (16). A main valve (18) is mounted in the body (12) for selectively opening and closing the passageway (13) to the flow of liquid, and a latch mechanism (29) is provided for selectively closing, and prohibiting the opening of, the main valve (18). The nozzle (10) further comprises automatic shut-off mechanism for releasing the latch mechanism so as to close, and prohibit the opening of, the main valve when supply pressure from the dispensing pump falls below a preselected value. Such automatic shut-off mechanism includes an actuator member ( b 43) operatively associated with the latch mechanism (29) and movably responsive to fluid pressure within the passageway between the inlet port (14) and the outlet port (16) reaching a preselected value.
REFERENCES:
patent: 3005476 (1961-10-01), Klaus
patent: 3077212 (1963-02-01), Hearn
patent: 4331187 (1982-05-01), Trygg
patent: 4572255 (1986-02-01), Rabinovich
Richards Industries, Inc.
Shaver Kevin P.
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