Ransburg Electro-Coating Corp. v. Ionic Electrostatic Corporation

HAYNSWORTH, Chief Judge:

The defendant has appealed from an order holding it in contempt of an in-junctive order entered in a patent case. The contempt finding is premised upon a finding that certain devices for use in electrostatic spray painting systems are the equivalent of certain other devices previously found to infringe the plaintiff’s patents and that the sale and use of the new devices were proscribed by the terms of the injunction. In light of the prior art, which the patentee has no right to appropriate, we think the finding erroneous.

Plaintiff’s patents cover paint feeding…