US Patent: RE22,071 - Process of normalizing hot pressed plywood


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US Patent: RE22,071

Process of normalizing hot pressed plywood

Patentee:

James V. Nevin (exact or similar names) - Aberdeen, WA

USPTO Classifications:

144/332, 34/343

Tool Categories:

woodworking machines : specialty woodworking machines : plywood making machines

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Jul. 31, 1940
Granted:	Apr. 14, 1942

Patent Pictures:

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Description:

There is no patent drawing. This patent provides a method of stress-relieving plywood during its manufacture, by being kept in a hot, humid environment after hot pressing, 150 to 210 degrees Fahrenheit and 98% humidity.