28 F. 428 | U.S. Cir. Ct. | 1886
This is an application for a preliminary injunction to restrain the alleged infringement by defendant of reissued patent No. 10,284, granted February 6, 1883, to John M. Pfaudler, Edward J. Kelsey, Josiah Sullivan, and James Sargent, (the last three being assignees of Pfaudler,) for an “apparatus for regulating the pressure in a series of fermenting vessels, ” the original patent having been issued to Pfaudler, July 2, 1878, and the application for the reissue having been filed August 26, 1879. It is stated in the specifications that the “invention has for its object to provide an effective apparatus for equalizing the pressure in a series of hogsheads or other vessels containing beer, wines, or other liquids in a state of fermentation, and for regulating the pressure of the gas caused by such fermentation, so that it shall not exceed a certain number of pounds to the square inch, previously determined and gauged in the said apparatus.” The apparatus, as described in the specifications and drawings, consists of one Or more reservoirs, connected by pipes with the hogsheads or other vessels containing the fermenting liquids. To this reservoir is attached an escape pipe, with a pressure gauge attached, so that, when the pressure in the reservoir exceeds the amount at which the gauge is set, the gas blows off through the escape-pipe until the pressure is reduced to the gauge; and it is claimed that by this apparatus the pressure in the casks is equalized, the process of fermentation in the different vessels is made uniform, and, as applied to beer, the liquid settles and. clarifies much more rapidly than by the old process of finishing. Defendant denies the patentable novelty
From the contention of the parties on the argument of this motion, —and they each seem to have been fully prepared, — it seems to mo that complainant’s rights under this patent must turn mainly upon the question of the novelty of Pfaudler’s device. As the proof now stands in the case, it would seem that a very vigorous contest was made over the reissue of this patent, and the patent-office, after an exhaustive discussion and examination of the state of the art, in which the interests opposed to the patent were fully heard, awarded the reissue. In view of the action of the patent-office, in the face of vigorous opposition, and of the decision of Judge Brown of the Eastern district of Michigan in the case of New Process Fermentation Co. v. Koch, 21 Fed. Rep. 580, where this patent was considered and discussed in its relation to the state of the art, I think complainant entitled, upon the present showing, to an injunction as prayed in the bill.