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US Patent: 5,020,205
Freeze Plug Installer Head and Tool Kit Including Same
Patentee:
Gerald A. Wridt - Racine, WI

USPTO Classifications:
29/275

Tool Categories:

Assignees:
Snap-On Tools Corp. - Kenosha, WI

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Apr. 23, 1990
Granted: Jun. 04, 1991

Patent Pictures:
USPTO pdf tiff
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Snap-On Tools Company History
Description:
Emrich & Dithmar - patent attorneys

Abstract

A freeze plug installation tool kit includes a drive tool having a coupling ball and a plurality of selectable carrier heads respectively sized for mating engagement with different-sized freeze plugs and detachably mountable on the coupling ball. Each carrier head has a cylindrical socket with an annular groove in which a split ring is disposed for snap engagement with the coupling ball to retain the ball in the socket. A flexible disk in the socket cooperates with the split ring to limit movement of the ball when it is retained in the socket.

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