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US Patent: 2,778,342
Poppet type valve distributing system for a servo-motor
Patentee:
Henry W. Ringman (exact or similar names) - Everett, WA

USPTO Classifications:
91/361, 91/404, 91/454, 91/459

Tool Categories:

Assignees:
Sumner Iron Works, Inc. - Everett, WA

Manufacturer:
Sumner Iron Works - Everett, WA

Witnesses:
Unknown

Patent Dates:
Applied: Aug. 10, 1953
Granted: Jan. 22, 1957

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Sumner Iron Works
Description:
"This invention relates to power cylinders and controls therefor. More particularly, it has reference to improvements in power cylinders designed for use in connection with heavy equipment such as, for example, log turners, skid lifts and the like as used in sawmill operations; it being understood, however, that the invention is not to be limited to use with any specific type of application."

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