Pivotal driving tool assembly

Rotary shafts – gudgeons – housings – and flexible couplings for ro – Coupling accommodates drive between members having... – Torque transmitted via intermeshing teeth on drive and...

Reexamination Certificate

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Details

C464S106000, C464S901000, C464S158000, C081S177750, C081S177850, C081S177800

Reexamination Certificate

active

07018298

ABSTRACT:
A pivotal driving tool includes a socket having a non-circular cavity formed by three or more planer side walls, and having an inner retaining ring. A mandrel includes a driving shank having a non-circular cross section for engaging into the socket, to allow the socket to be rotated by the mandrel. The mandrel includes a narrowed neck portion to allow the mandrel to be pivoted relative to the socket, and one or more flat surfaces to solidly anchor the driving shank to the socket. A magnetic member may be disposed in the mandrel, to act on and to pull the driving shank into the cavity of the socket. A barrel may be slidably engaged onto the socket, to engage onto and to be disengaged from the mandrel.

REFERENCES:
patent: 4818157 (1989-04-01), Kouvelis
patent: 4995850 (1991-02-01), van der Drift et al.
patent: 5547032 (1996-08-01), Wenzel
patent: 5577426 (1996-11-01), Eggert et al.
patent: 5827122 (1998-10-01), Kurian
patent: 5918512 (1999-07-01), Habermehl et al.
patent: 6105473 (2000-08-01), Huang
patent: 6290606 (2001-09-01), Hodson
patent: 6347564 (2002-02-01), Ciocca
patent: 2004/0214646 (2004-10-01), Chiou

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