Salvage Process Corp. v. Acme Tank Cleaning Process Corp.

GALSTON, District Judge.

This is a motion for a preliminary injunction which seeks to restrain the defendants from infringement of letters patent Nos. 1,405,173 and 1,480,482, to Hervey J. Wheeler, the former granted January 31, 1922, the latter January 8, 1924; also patents Nos. 1,894,234 and 1,964,726 to Gunnar C. Engstrand, the former issued January 10, 1933, and the latter July 3, 1934. On the argument of the motion, the second Wheeler patent, No. 1,480,482, was withdrawn from consideration.

All of these patents relate to pumping apparatus and means for lifting and transferring material…