US Patent: 3,042,068 - Safety relief valve


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US Patent: 3,042,068

Safety relief valve

Patentee:

Ronald V. Smith (exact or similar names) - Pennsauken, NJ

USPTO Classifications:

137/315.05, 251/363, 285/4, 411/427

Tool Categories:

industrial tools : pressure regulators

Assignees:

J. E. Lonergan Co. - Philadelphia, PA

Manufacturer:

J. E. Lonergan Co. - Philadelphia, PA

Witnesses:

Unknown

Patent Dates:
Applied:	Apr. 23, 1959
Granted:	Jul. 03, 1962

Patent Pictures:

USPTO (New site tip)
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Vintage Machinery entry for J. E. Lonergan Co.

Description:

This invention "has particular appilcation to valves for use on hydro-carbon chemical plants and similar installations where 'coking' and/or corrosive fluids are handled."