Browse Prior Art Database

PLANETARY LIQUID METAL BRUSH

IP.com Disclosure Number: IPCOM000027584D
Original Publication Date: 1998-Feb-28
Included in the Prior Art Database: 2004-Apr-08
Document File: 2 page(s) / 82K

Publishing Venue

Xerox Disclosure Journal

Abstract

A method of utilizing liquid metal as the power transfer medium between the main and mandrel commutators of a planetary plating mechanism is disclosed. Present planetary mechanisms incorporate power transfer from the main commutator to the mandrel commutators through brushes and flexible copper conductors. It has been demonstrated

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XEROX DISCLOSURE JOURNAL

PLANETARY LIQUID METAL BRUSH

William G. Herbert Peter J. Schmitt

Proposed Classification
U. S. C1.205/080 Int. C1. C25d 5/00

J4

FIG. I

74

FIG. 2

A method of utilizing liquid metal as the power transfer medium between the main and mandrel commutators of a planetary plating mechanism is disclosed. Present planetary mechanisms incorporate power transfer from the main commutator to the mandrel commutators through brushes and flexible copper conductors. It has been demonstrated

XEROX DISCLOSURE JOURNAL - Vol. 23, No. 1 JanuaryFebrUary 1998 3

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PLANETARY LIQUID METAL BRUSH (CONT'D)

that power distribution among the mandrels must be within one-percent at each location to eliminate burning of the mandrels caused by poor brush contact during plating. Replacing the brushes with liquid metal to complete the conductive path eliminates the problem.

Figure 1 schematically illustrates the disclosed planetary plating mechanism having a main commutator 12 and a plurality of mandrel commutators 14. The main commutator is connected to each of the mandrel commutators 14 through a separate pair of flexible copper conductors 16.

Figure 2 shows a partial view of the conductive path between the mandrels. The main commutator 12 contacts a supply of liquid metal 22 contained in a main trough 18. In a similar fashion, an exemplary mandrel commutator contacts another liquid metal 22 supply contained i...