Scavenging-air valve for soot blowers
United States Patent 2699799
US Patent References:
/0351159.html
- - 0351159

/0314216.html
- - 0314216

/0746402.html
- - 0746402

/0767098.html
- - 0767098

Drain valve
- - 2136898


Inventors:
Hudson, Wager Robert
Publication Date:
01/18/1955
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Assignee:
Hudson, Wager Robert
Primary Class:
137/498
Other Classes:
137/517
International Classes:
F22B37/54; F22B37/00
US Patent References:
2204757Safety valve
2245271Safety cutoff valve
2279976Automatic safety device for boilers
2307949Flow restrictor
2357321Control
2554390Hydraulic fuse