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US Patent: D115,416
Torque Indicating Tool
Patentee:
Siegmund Mandl (exact or similar names) - Milwaukee County, WI

USPTO Classifications:
D8/24

Tool Categories:
wrenches : torque wrenches

Assignees:
Blackhawk Mfg. Co. - Milwaukee, WI

Manufacturer:
Blackhawk Mfg. Co. - Milwaukee, WI

Witnesses:
none listed

Patent Dates:
Applied: May 10, 1939
Granted: Jun. 27, 1939

Patent Pictures: [ 1 | 2 ]
Siegmund Mandl design patent June 27, 1939
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Description:
A bar type torque wrench.

Design matches BLACKHAWK TORKFLASH torque wrench -- the indicator scale rotates to show torque for common bolt sizes, foot pounds, etc. See also patent no. 2,242,613 which includes description of the electric flashlight circuit which explains the "FLASH" part of the name.

Term of patent 3 1/2 years.

Morsell, Lieber & Morsell - patent attorneys

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