Variable flow control valve for use with dental syringes and the

Details Variable flow control valve for use with dental syringes and the Variable flow control valve for use with dental syringes and the

1975-07-21

1976-10-26

Rosenthal, Arnold

Valves and valve actuation

Mechanical movement actuator

Plural motions of valve

251228, 251251, 251298, F16K 2500, F16K 31524

Patent

active

039880010

ABSTRACT:
A valve for dental syringes and the like has its actuator provided with a cam. When the actuator is moved axially it engages a valve seal member and rocks the member on the valve seat so that initially only a portion of the valve about the periphery of the valve seal member is open. Moving the actuator further causes the entire valve seal member to move off of the valve seat so that the full circumference about the seal member is opened. The rocking of the valve seal member on the seat and then moving it axially from the valve seat provides substantially linear volume control from zero flow to the designed maximum flow of the valve.

REFERENCES:
patent: 2526457 (1950-10-01), Bradbury
patent: 2622435 (1952-12-01), Lucas et al.
patent: 2934902 (1960-05-01), Anderson
patent: 2984452 (1961-05-01), Hooper

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