Court Opinion

ID: 8853046
Source: CourtListenerOpinion
Date Created: 2022-11-26 17:21:28.41274+00
Date Added: 2024-06-11T17:05:34.179697
License: Public Domain

BELLINGrER, District Judge.
This is a suit to enjoin the infringement of a patent for an improvement in coal screens and chutes. The court, in the decree appealed from, refused to .grant the relief prayed for and dismissed the bill of complaint. The improvement, styled by the parties an “apparatus,” consists of a receiving hopper, a reservoir, a screen, and a chute, so arranged in a portable machine that coal can be continuously dumped into the hopper from a swinging tub, while at the same time it is delivered screened into carts from the chute. The especial feature of the apparatus, which permits this to be done, is the interposition of a reservoir between the receiving hopper and the delivery chute. It is the employment of this reservoir that enables the machine to “accomplish 1:he new operation, mode, result, and effect.” The respondent’s apparatus is a large, stationary machine, composed of long V-shaped hoppers, with gates at the lower side at intervals, *247which open into chutes with screen bottoms. About six feet from the ends of the chutes a board is inserted, forming a gate which can be raised and lowered at either end, and by means of which the flow of coal through the chutes is checked and controlled.
Since the arguments of this case, the supreme court of the United States, in Black Diamond Coal Min. Co. v. Excelsior Coal Co., 156 U. S. 611, 15 Sup. Ct. 482, held that the use of the respondent’s hopper and screening device did not involve an infringement of the Excelsior Company’s patent, “if for no other reason, because it lacked the reservoir” of that patent. That decision in effect disposes of this case. The decree appealed from, dismissing the complainant’s bill of complaint, is affirmed.