Metal working – Means to assemble or disassemble – Means comprising hand manipulatable tool
Patent
1992-08-03
1993-10-19
Watson, Robert C.
Metal working
Means to assemble or disassemble
Means comprising hand manipulatable tool
294 11, B25B 2714
Patent
active
052534081
ABSTRACT:
An extraction tool for reaching into small passageways such as are found in modern automobile engine compartments to aid in the removal of spark plug boots, fuel injector nozzles, PVC valves and the like. The tool comprises an elongated tubular sleeve having an ellipsoidal transverse cross-section and a pair of juxtaposed, lefthanded and righthanded gripping members. Each gripping member includes an elongated rod, a jaw and a handle, which together comprise a single unitary piece. The rods, which are rotatable, are largely disposed within the sleeve while the jaws and handles are situated outside the sleeve and proximate with first and second ends thereof, respectively. In each gripping member, the jaw extends perpendicularly from the rod and is curved towards the other jaw, the inner surface of each jaw lying along an imaginary arc similar to the arc along which the inner surface of the other jaw lies. A torsion spring connected to the handles is employed to bias the handles so that they are normally oriented perpendicularly to each other. To remove an object, a mechanic first slides the open jaws of the tool along the sides of the object. Once the jaws have traversed the full length of the object and are positioned just past its distal edge, he rotates the handles together, closing the jaws, and pulls the object towards himself. In the case of a spark plug boot, a mechanic using this tool can remove the boot without putting strain on the ignition wire.
REFERENCES:
patent: 1284323 (1918-11-01), Hansen
patent: 2127947 (1938-08-01), Weiss
patent: 2326676 (1943-08-01), Peters
patent: 4125938 (1978-11-01), Clark
patent: 4202088 (1980-05-01), Hansen
patent: 4757588 (1988-07-01), Churchich
Leon Harry I.
Watson Robert C.
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