Parson Mfg. Co. v. Coe

CROSS, District Judge.

There are three patents involved in this controversy which the bill of complaint alleges are capable of conjoint use and have been conjointly used. They were all issued to one Henry E. Parson and assigned to the complainant. Of these patents the first which will be considered is No. 573,480, dated December 22, 1896, for a steam blower. Of its two claims the first only is involved.

“1. The combination of a steam blower, an elongated brick-incased chamber arranged above the grate of the furnace, adjacent to the side wall of the furnace, a superheater located in said…