US Patent: 2,780,944 - Reversible drive for power tools


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US Patent: 2,780,944

Reversible drive for power tools

Patentee:

Elmer J. Ondeck (exact or similar names) - Brookfield, IL

USPTO Classifications:

408/124, 475/270, 475/286, 81/57.31

Tool Categories:

handheld power tools : handheld power tool accessories

Assignees:

Supreme Products Corp. - Chicago, IL

Manufacturer:

Ridge Tool Co. - Elyria, OH

Supreme Products Corp. - Chicago, IL

Witnesses:

Unknown

Patent Dates:
Applied:	Feb. 26, 1954
Granted:	Feb. 12, 1957

Patent Pictures: [ 1 | 2 | 3 ]

Reversing portion of mechanism. Not shown are the planetary gears

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Ridge Tool Co.
"mrpete222" YouTube video showing this speed reducer
Vintage Machinery entry for Supreme Products, Inc.

Description:

Seen on YouTube: an example of this reversible speed reducer. The box is labeled "Ridgid / Supreme Model No. 4100 Versamatic reversible power drill speed reducer / The Ridge Tool Company / Elyria, Ohio". This device may have been manufactured by Supreme for resale by Ridgid.