Tools – Wrench – screwdriver – or driver therefor – Pivoted outer jaw
Reexamination Certificate
2004-11-06
2008-09-02
Thomas, David B (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Pivoted outer jaw
C081S111000
Reexamination Certificate
active
07418891
ABSTRACT:
The present invention relates to a spanner having a toggle bar installed in at least a jaw and allowed to be rotated in one direction for tightening or releasing a bolt (or nut) continually by continuous operation of rotating the spanner's lever in one and other converse directions repeatedly in a state of gripping the bolt, which is also easily operative for tightening or releasing a bolt (or nut), especially when placed in a narrow gap. The spanner is constructed to comprise a lever; a jaw and a second jaw respectively extending from both sides of the lead end of the lever and forming a gripping space therebetween for gripping a bolt; a toggle bar installed on the lead end of the second jaw to be allowed to be rotated only to the outward of the gripping space; and a tension adjustment bolt installed in the long hole formed on the bottom of the second jaw and having a lead end connected to the inner side of the toggle bar so as to elastically support the toggle bar to the inward of the gripping space.
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Choi Ock-Soon
MacPherson Kwok & Chen & Heid LLP
Thomas David B
LandOfFree
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