Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1984-03-20
1985-10-15
Nilson, Robert G.
Fluid handling
Line condition change responsive valves
Direct response valves
137116, 417 28, F16K 1706
Patent
active
045467919
ABSTRACT:
An improved safety valve for a feeding water machine, comprising a first casing having an inlet and an outlet, a spring-loaded sliding member slidably mounted into the first casing, a spring-loaded steel ball mounted into the spring-loaded sliding member, a ring mounted into the sliding member to confine the spring-loaded steel ball, a supporting member abutting against the ring, a second casing fixedly attached to the first casing, a stem threadedly engaged with the second casing in such a manner that it may be screwed into or out of the second casing, a push member fastened to the end of the stem, a spring located against the push member at one end and provided with a spring shoe at the other end, a sliding rod disposed against the spring shoe and contacting a second steel ball at the other end, and a spacer mounted between the first casing and the second casing.
REFERENCES:
patent: 1798631 (1931-03-01), Rodler
patent: 2356306 (1944-08-01), Davis
patent: 2487575 (1949-11-01), Mercier
patent: 2752754 (1956-07-01), Jaseph
patent: 3446238 (1969-05-01), Norstrud
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