Motorfrigerator Co. v. Frigidaire Sales Corp.

SOPER, Circuit Judge.

' This suit iu equity was brought by the Motorfrigerator Company, assignee of the United States patent to A. S. Lewis No. 1,673,082 of August 9, 1920, for patent infringement, alleged to have been committed by the defendant, Frigidaire Sales Corporation. The patent relates to an improvement in automatic mechanical refrigerators, such as are commonly employed in domestic use. The fundamentals of such a device, which are common to Lewis and to the prior art, are a compressor, a eondensor, an expansion valve, an expansion or cooling coil, and conduits for the movement of the…