US Patent: 299,503 - Safety Valves


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

US Patent: 299,503

Safety Valves

Patentee:

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

USPTO Classifications:

181/237, 251/127

Tool Categories:

propulsion and energy : steam apparatus : steam safety valves

Assignees:

None

Manufacturer:

Ashton Valve Co. - Boston, MA

Witnesses:

J. E. Maynadier

John R. Snow

Patent Dates:
Applied:	Feb. 14, 1884
Granted:	Jun. 03, 1884

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Ashton Valve Co.

Description:

This patent is an improvement on the Ashton Pop-Valve of patent 200,119, and provides for a muffler to reduce the noise made by escaping steam. A commentary on an 1891 lawsuit claimed that this patent was never used by Ashton Valve Co.