Tools – Wrench – screwdriver – or driver therefor – Rigid jaws
Reexamination Certificate
2005-09-27
2005-09-27
Smith, James G. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Rigid jaws
C081S185000, C081S124100
Reexamination Certificate
active
06948407
ABSTRACT:
A box end wrench includes an annular flange extending from a first side thereof and an inner diameter is larger than a maximum inner diameter of the box end. A compressible member is engaged with a second side of the box end and can be compressed by an object engaged with the box end. The compressible member pushes the object from the toothed inner periphery of the box end to a space enclosed by the annular flange, so that the object is retained in the box end while the handle of the wrench is allowed to be rotated in counter clockwise.
REFERENCES:
patent: 2488894 (1949-11-01), Barrett
patent: 2811631 (1957-10-01), Wood, Jr.
patent: 3349655 (1967-10-01), Locke
patent: 3674070 (1972-07-01), Mahoney
patent: 3779105 (1973-12-01), Triplett et al.
patent: 3858468 (1975-01-01), Pasbrig
patent: 5168781 (1992-12-01), Tenuta
patent: 5249489 (1993-10-01), Weisman
patent: 6860176 (2005-03-01), Hsien
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