Tools – Wrench – screwdriver – or driver therefor – Double-ended – simultaneous adjustment
Patent
1996-01-19
1997-11-11
Meislin, D. S.
Tools
Wrench, screwdriver, or driver therefor
Double-ended, simultaneous adjustment
81437, 7139, B25B 1310
Patent
active
056852061
ABSTRACT:
A multi-purpose tool is provided and includes first and second elongate body members each having first and second ends. A torque surface is formed at one of the first and second ends of each of the body members. The torque surfaces are adapted for engagement with workpiece surfaces such as the flats of polygonal fastening elements. Driver heads are formed at the other ends of the body members and are adapted for engagement in slots of slotted fastening elements with the first body member driver head configured differently from the second body member driver head. The body members are secured together to allow relative movement therebetween with the torque surface of the first body member and the torque surface of the second body member generally facing each other to define an adjustable opening therebetween. The driver heads of the body members are adjacent to each other for exposing one of the heads beyond the other. A single adjusting nut is provided and screw threads are formed on one of the body members and receiving and cooperating with the nut thereon to allow the nut to be turned to move the body members relative to each other and simultaneously: (1) change the size of the opening between the torque surfaces of the body members for engaging differently sized polygonal fastening elements, and (2) move the driver heads for exposing an appropriately configured one of the driver heads beyond the other drive head for matingly engaging slotted fastening elements having differently configured slots.
REFERENCES:
patent: 509151 (1893-11-01), Dicks
patent: 1321187 (1919-11-01), Brower
patent: 2912891 (1959-11-01), Neff
patent: 3363490 (1968-01-01), Maichen
patent: 3370307 (1968-02-01), Beeks
patent: 4787275 (1988-11-01), Colvin
patent: 4811637 (1989-03-01), McCleary
patent: 5218891 (1993-06-01), Olson et al.
Danganan Joni B.
Meislin D. S.
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