Tool for tightening and loosening a fastener

Tools – Wrench – screwdriver – or driver therefor – Spanner

Reexamination Certificate

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Details

C081S461000, C081S185100, C081S121100

Reexamination Certificate

active

07836800

ABSTRACT:
A socket (204, 600) is provided for use with a wrench (202) having a shaft (216) to drive the socket for tightening or loosening a fastener (206) having a gripping notch (218). The socket includes a main body (306, 610) and at least one removable driver (308, 310, 602, 604, 606, 608). The main body has a recess (214, 720) being of such dimensions that at least a portion of the fastener fills the recess when inserted therein. The main body further comprises a guide (402, 804) configured for aligning the socket and the fastener. The removable driver has at least one driving element (342, 344, 760, 762) sized and shaped to fit within the gripping notch of the fastener. The removable driver is removably disposed within the main body in an orientation in which a driving element at least partially protrudes into the recess.

REFERENCES:
patent: 2770991 (1956-11-01), Myers
patent: 3094022 (1963-06-01), Young
patent: 3233482 (1966-02-01), Jaehne
patent: 4663998 (1987-05-01), Parsons et al.
patent: 5400680 (1995-03-01), Spangler
patent: 5875694 (1999-03-01), Graf
patent: 6170364 (2001-01-01), Johnson
patent: 7328636 (2008-02-01), Camacho
patent: 2002/0139225 (2002-10-01), Carter

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