US Patent: RE8,211 - Improvement in Safety-Valve Attachment to Utilize Escape-Steam


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US Patent: RE8,211

Improvement in Safety-Valve Attachment to Utilize Escape-Steam

Patentee:

Henry G. Ashton (exact or similar names) - Boston, MA

USPTO Classifications:

122/437

Tool Categories:

propulsion and energy : steam apparatus : steam safety valves

Assignees:

Ashton Valve Co. - Hartford, CT

Manufacturer:

Ashton Valve Co. - Boston, MA

Witnesses:

J. E. Maynadier

George O. G. Coale

Patent Dates:
Applied:	Apr. 24, 1878
Granted:	May 07, 1878

Reissue Information:
Reissue of 186,783 (Jan. 30, 1877)

Patent Pictures:

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"Vintage Machinery" entry for Ashton Valve Co.

Description:

Note the witness, George O. G. Coale, who was later involved in the Coale Muffler & Safety Valve Co., and would be sued by Ashton Valve Co. for patent infringement; see the note on patent 200,119.