Harry A. Pursche v. Atlas Scraper and Engineering Co., a Corporation, Atlas Scraper and Engineering Co., a Corporation v. Harry A. Pursche
Opinion
Opinion
Koelsch, J.
Harry A. Pursche filed a complaint in the district court charging Atlas Scraper and Engineering Co. with infringement of several patents and with unfair competition. He sought an injunction and damages. Atlas answered, denying generally these charges and affirmatively alleged the usual defenses. In addition, Atlas commenced a separate suit seeking a declaratory judgment of noninfringement and invalidity of those patents. The two actions were consolidated and tried to the court sitting without a jury. By a single judgment covering both actions the district court decided the issues for the most part in Pursche’s favor. It granted Pursche an injunction and ordered an accounting. The suits are here on Atlas’ appeal and Pursche’s cross-appeal from the judgment.
Pursche’s patents relate to a farm implement known as a “two-way” plow. The specifications of one of the patents states:
Pursche was not the first to conceive a two-way plow. It was a type of plow known to the art as early as the latter half of the nineteenth century and its many advantages have caused it to be subject of considerable attention on the part of inventors, manufacturers and those engaged in farming. As might be…