Rigid dangler assembly for electroplating barrels
US4356075A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1981 |
| Grant date | Oct 26, 1982 |
| Priority date | — |
| Expiry date | Jun 29, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D17/20
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
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 al…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.