.~ Direct response valves (i.e., check valve type) {14}
524
.~.~ With bias adjustment indicator
DEFINITION
Classification: 137/524
(under subclass 511) Valves provided with means for indicating the adjustment of the biasing means, usually in terms of the pressure at which the valve will open.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227+, for inflation valve combinations or subcombinations provided with indicators.
551+, for valves provided with indicating means, especially subclass 556 for indicator elements rigidly carried by the element position of which is indicated.
SEE OR SEARCH CLASS
116, Signals and Indicators,
227, for valve position indicators where the valve is not significantly claimed.
