Patent ID: 9670806
Date: 2017-06-06
CPC Classifications: F01M,G05D,Y10T

Claim:
1. A valve comprising: a housing member having an elongated cavity; a plunger member positioned in said cavity, said plunger member adapted to move longitudinally in said cavity in both a first and second direction; a spring member for biasing said plunger member when moved in said first direction; a first passageway member positioned in said cavity below said plunger member, said first passageway member having a first passageway; and a nozzle member positioned in said cavity below said plunger member, said nozzle member having a second passageway, said second passageway having a narrow throat; wherein movement of said plunger member in said second direction, toward said first passageway member and said nozzle member, seals off said first passageway against gas flow with said nozzle member remaining below said plunger member and open to gas flow.