Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1981-06-29
1982-10-26
Tufariello, T.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204280, 204286, C25D 1720, C25D 1710
Patent
active
043560750
ABSTRACT:
Rigid dangler cathode assemblies for use in a conventional, rotatable electroplating barrel are disclosed which remain relatively stationary in position within the barrel as the barrel is rotated in an electrolyte solution in which it is immersed. Each of the assemblies includes an L-shaped rod having a vertically extending end portion which lies within a guideway of a hanger arm rotatably attached to the outer barrel end wall and a horizontally extending end portion which projects through a hub in the barrel end wall into the interior of the barrel. A disc-shaped weight is slippably mounted offcenter on the rod within the barrel, which weight has a center of gravity below the rod. A rigid, elongated metallic dangler arm is slippably connected on one end portion thereof to a lower portion of the weight below the center of gravity thereof so that the arm remains relatively stationary and does not flip out of the electrolyte as the barrel rotates, thus reducing or eliminating the burning of parts being plated within the rotating barrel which would otherwise occur due to electric arcing. The dangler may be generally S-shaped in construction and may also have crimped segments spaced along the length thereof to aid in separating parts being plated in the barrel which stick together along flat surfaces thereof due to surface tension. The crimped segments tend to separate such parts upon striking the latter as the barrel rotates in the solution.
REFERENCES:
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patent: 4105526 (1978-08-01), Lewellen, Jr. et al.
patent: 4305804 (1981-12-01), Tipton
Case Engineering Consulting Company
Miller Jr. Maurice L.
Nguyen N.
Tufariello T.
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