US Patent: 2,452,268 - Motor Hand Tool Assembly


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US Patent: 2,452,268

Motor Hand Tool Assembly

Patentee:

Robert Schümann (exact or similar names) - Racine, Racine County, WI

USPTO Classifications:

173/213, 173/75, 29/DIG.67, 29/DIG.83, 409/137, 409/182, 415/904, 451/449

Tool Categories:

handheld power tools : handheld grinders

Assignees:

None

Manufacturer:

Precise Fabrik für Elektrowerkzeuge - Dusseldorf, North Rhine-Westphalia, Germany

Precise Products Co. - Racine, Racine County, WI

Witnesses:

Unknown

Patent Dates:
Applied:	Jun. 29, 1945
Granted:	Oct. 26, 1948

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Precise" Toolpost Grinder
"Vintage Machinery" entry for Precise Products Corp.

Description:

Claim:

A tool assembly including an operating shaft, a motor to operate said shaft, means operable by one of said parts to induce air to travel in heat-transferring relation to the assembly and discharge adjacent the tool-operating end of the assembly and means for imparting whirling action to the air at a point adjacent its discharge from the assembly.