US Patent: 5,280,740 - Flexible Head Socket Wrench


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US Patent: 5,280,740

Flexible Head Socket Wrench

Patentee:

Michael L. Ernst (exact or similar names) - Hamersville, OH

USPTO Classifications:

81/177.7, 81/73

Tool Categories:

wrenches : socket wrenches

Assignees:

Mac Tools, Inc. - Washington Court House, OH

Manufacturer:

Not known to have been produced

Witnesses:

none listed

Patent Dates:
Applied:	Jul. 11, 1990
Granted:	Jan. 25, 1994

Patent Pictures:

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Mac Tools History

Description:

Joseph G. Nauman; Eric J. Groen - patent attorneys

Abstract

A socket wrench is shown having a socket driver head pinned to a clevis on a shaft. A sleeve is receivable over the shaft end and includes open ended slots pointing away from the clevis. The shaft includes a pin press fit within a cross bore on the shaft end, and the shaft and sleeve are axially slidable relative to each other; where in one position the pin engages one of the slots, and in another position, the shaft and sleeve spin freely of each other. A handle includes an internal bore which is profiled to compressively fit over the sleeve, and a chamber is defined between the sleeve and the end of the internal bore, to provide clearance for the axial movement of the shaft and sleeve.