Hanson-Van Winkle-Munning Co. v. U. S. Galvanizing & Plating Equipment Corp.

46 F. Supp. 487, 54 U.S.P.Q. (BNA) 481, 1942 U.S. Dist. LEXIS 2566
CourtDistrict Court, N.D. New York
DecidedSeptember 8, 1942
DocketNo. 2881
StatusPublished

This text of 46 F. Supp. 487 (Hanson-Van Winkle-Munning Co. v. U. S. Galvanizing & Plating Equipment Corp.) is published on Counsel Stack Legal Research, covering District Court, N.D. New York primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Hanson-Van Winkle-Munning Co. v. U. S. Galvanizing & Plating Equipment Corp., 46 F. Supp. 487, 54 U.S.P.Q. (BNA) 481, 1942 U.S. Dist. LEXIS 2566 (N.D.N.Y. 1942).

Opinion

BRYANT, District Judge.

This is an action for infringement of Claim 8 of Letters Patent No. 1,501,946 and Claims 1 and 7, inclusive, of Patent No. 1,896,097. Both patents, referred to as the “Hall” Patents, are for an electroplating apparatus or automatic conveyor for chemical or electro-chemical operations.

Plaintiff, a New Jersey corporation, through assignment, is the owner of both patents. Defendant U. S. Galvanizing & Plating Equipment Corporation, a West Virginia corporation with its principal place of business in Brooklyn, N. Y., manufactured and sold to defendant Revere Copper and Brass Inc., a Maryland corporation with its principal place of business in this District, the apparatus which plaintiff claims infringes. The only issues are invalidity because of anticipation and non-infringement.

The process of electro-plating is old. Generally there are a series of tanks, in some instances extending along the factory floor as much as 75 feet and varying from 4 to 9 feet in width and depth. The tanks contain different solutions or baths. The articles, being treated, are conveyed by means of carriers through one tank and then lifted and immersed into the next tank where they again are conveyed, etc. At the end of the journey they are unloaded and the carrier sent bank to the starting station. It is helpful, and in some instances necessary and essential, to transfer the treated articles from one tank to the next as speedily as possible in order to avoid oxidation and other deleterious chemical reaction through exposure of the treated articles to the air.

Claim 8 of the first Hall patent, No. 1,-501,946, reads as follows: “8. An electroplating apparatus comprising a work holder for articles to be plated, a conveying mechanism adapted to move said work holder along a tank, and means operable at the delivery end of the tank for disconnecting such work holder from said conveying mechanism, raising the work holder above the tank, and moving the same forwardly into engagement with the conveying mechanism at a speed greater than the [488]*488speed of travel of the conveying mechanism.”

Plaintiff does not claim that Hall was the first to devise a mechanism to convey . plating articles through a tank and, upon reaching the end, to transfer the articles from that tank into the succeeding one. However, it does maintain that, for the first time, through the disclosures of the first Hall patent, there was devised an apparatus that goes through these operations in timed relation with each other so that the transfers are accomplished at a relatively much higher rate of speed. The mechanism and means used to accomplish the above announced objectives are well illustrated in Fig 1. of the patent drawings.

Briefly, the patented device consists of' an endless chain arranged to travel around sprocket wheels located at both ends of a series of tanks, this endless chain being located above the tanks or baths. The chain is made up of links, the pins joining the links having extensions. There is a work carrier, from which the articles to be treated are suspended. It is shown clearly in Figs. 3 and 4. It has a projecting shelf located beneath its hooked upper end. This shelf rests upon the endless chain and has an opening, into which fits the projecting pins of the endless chain. Thus, as the chain moves from left to right, the work carrier, from which are suspended the immersed articles, is carried along by the movement of the endless chain. As it reaches the delivery end of the tank, the hooked upper end of the work carrier comes in contact with the end of a rotating arm. This rotating arm has, at its contacting end with the work carrier, a roller and the arm is slidably mounted in a rotary block. The hooked portion of the carrier has a slot which fits the end of the rotary arm. This arm, rotating in a clockwise direction, raises the work carrier and carries it upward and then downward for immersion in the next tank. Both the chain and arm are caused to move by the same shaft, which is geared to the operating means of both.

The second Hall patent, No. 1,896,079, supplements and contains improvements over the operation of the first Hall patent. It carries a little further the idea of constructing demountable work carriers so that they can be transferred from one set of conveyors to another in a predetermined sequence of operations. Here, instead of the hooked work carrier of the first patent, we find a carrier bar or rod. The details of this bar, and the work performed, are sufficiently shown in the patent illustration. Arranged on each side of the tanks, where the partition divides one tank from another, are uprights, which support the transfer conveyors. The transfer is accomplished by a sprocket wheel which drives a moving sprocket and an endless chain carrying dependent socket arms. The speed of this endless chain is much faster than the conveyor chain. As the carrier rod is brought to this transfer movement, by the slow moving conveyor chain, the depending socket arms lift the carrier from the conveyor chains and move it rapidly around the wheel into the succeeding tank. However, the primary object of this patent is a “quick return conveyor”. This, it is claimed, saves time and labor through a lessening of the idle period of work carriers and a reduction in the number thereof, thereby increasing the efficiency and effectiveness of the machine. Briefly speaking, the device consists of an endless chain (see Fig. S) moving from’ the unloading end upwardly around a sprocket to the top of the apparatus, then horizontally to the loading end and then downwardly to the loading spot. At spaced intervals along this chain are pivotally supported socket arms. As the return conveyor chain comes under the carrier rod at the delivery end of the last tank, it lifts this rod from the slow moving chain and, as in the instance of the transfer mechanism above described, moves it, at high speed, along the chain to the slow moving conveyor chain at the loading encl. All movements of the three chains are operated from the same source of power and in timed relation, but, through gearing, at different speeds. Claim 2 of this patent is typical of the claims relied on. It reads: “Apparatus of the character described, comprising in combination a series of work stations for the performance of operations upon work-pieces conveyed thereto, a conveyor traversing the series of work stations, work-piece hangers removably mountable on said conveyor, transfer mechanism for .removing each hanger from said conveyor, at a point leaving each work station and returning it to said conveyor at a point entering the succeeding work station, and quick return means for removing each hanger from said conveyor at a point leaving the last work station and returning it to said conveyor at a point approaching [489]*489the first work-station, said transfer mechanism and said quick return means being interconnected with said conveyor to operate in timed relation therewith but at a higher rate of travel.”

Defendants, in their, attack on validity, cited some forty prior patents and uses. Mainly, they are relying on five.

The Hayes and Konig patent, No. 465,-700, discloses a machine or apparatus for treating wire in a chemical solution. Manifestly, the problem of oxidation, through exposure to the air, was not present. It has a transfer means to pick up and convey articles from tank to tank, which travels at the same speed as the conveyor chain. The patent discloses an alternate transfer mechanism, a single arm which transfers the work holder from one tank to the succeeding one.

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46 F. Supp. 487, 54 U.S.P.Q. (BNA) 481, 1942 U.S. Dist. LEXIS 2566, Counsel Stack Legal Research, https://law.counselstack.com/opinion/hanson-van-winkle-munning-co-v-u-s-galvanizing-plating-equipment-nynd-1942.