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Combined automatic shut-off and check valve assembly for tanks and the like
US 2,715,414 A
Filed
: 11/20/1951
Issued
: 08/16/1955
Est. Priority Date
: 11/20/1951
Status: Expired due to Term
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Current Assignee
Leon A. Johnson
,
Robert B. Kinzbach
Original Assignee
Leon A. Johnson
,
Robert B. Kinzbach
Inventors
Kinzbach, Robert B.
,
Johnson, Leon A.
Application Number
US03/257,302
Time in Patent Office
1,365 Days
Field of Search
US Class Current
137/399
CPC Class Codes
F16K 17/42
Valves preventing penetrati...
Y10T 137/7326
Low level safety cut-off
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