Metal working – Method of mechanical manufacture – Disassembling
Patent
1991-03-22
1992-07-14
Watson, Robert C.
Metal working
Method of mechanical manufacture
Disassembling
29239, 29256, 29252, B23P 1904
Patent
active
051291363
ABSTRACT:
A flange spreading implement includes a set of pins freely slide into the bolt holes of the flanges to be spread apart. The pins are of a size selected to bind in the flange bolt holes upon the application of a moment to the pins. Arms are connected to the pins and extend beyond the periphery of the flanges to be spread. A force applier, such as a hydraulic motor or screw, is used to apply a force to the arms in a direction generally parallel to the axis of the flanges. This imparts a moment to the pins, causing them to bind in the bolt holes and thereby grip the flanges. The force applier applies sufficient force to spread the flanges apart to allow a valve, meter, flow treater, gasket, orifice plate or the like, to be removed from between the flanges.
REFERENCES:
patent: 3997957 (1976-12-01), Tone et al.
patent: 4027373 (1977-06-01), Kwost
patent: 4610064 (1986-09-01), Verstraeten
Moller G. Turner
Watson Robert C.
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