Fluid handling – Convertible – Units interchangeable between alternate locations
Patent
1974-11-08
1976-02-17
Schwadron, Martin P.
Fluid handling
Convertible
Units interchangeable between alternate locations
251337, 13750541, F16K 3112
Patent
active
039385426
ABSTRACT:
In a plural range pressure regulator construction having a spring for acting on a flexible wall of the construction to provide one pressure range for the regulator construction when the spring is in a certain position thereof and for being stored in a removable cap of the construction so that the spring will be in another position thereof and will not act on the wall so as to permit the regulator construction to provide another range thereof, the improvement wherein the spring has a spring retainer secured to one end thereof with the spring retainer being adapted to be snap-fitted onto a projection of the cap whereby the cap and spring are removed in unison from the housing when it is desired to change the operating position of the spring.
REFERENCES:
patent: 1393348 (1921-10-01), Davenport
patent: 1448221 (1923-03-01), Johnson
patent: 2470327 (1949-05-01), Tener
patent: 2631600 (1953-03-01), Flanagan
patent: 2810397 (1957-10-01), Olson et al.
patent: 3062525 (1962-11-01), Schutmaat
patent: 3747629 (1973-07-01), Bauman
patent: 3825029 (1974-07-01), Genbauffe
Miller Robert J.
Robertshaw Controls Company
Schwadron Martin P.
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