119 F.2d 349 (7th Cir. 1941), 7402, Ace Patents Corp. v. Exhibit Supply Co.

Docket Nº:7402-7404.
Citation:119 F.2d 349, 48 U.S.P.Q. 667
Case Date:March 12, 1941
Court:United States Courts of Appeals, Court of Appeals for the Seventh Circuit

Page 349

119 F.2d 349 (7th Cir. 1941)

48 U.S.P.Q. 667










Nos. 7402-7404.

United States Court of Appeals, Seventh Circuit.

March 12, 1941

Rehearing Denied May 16, 1941.

Geo. I. Haight, M. K. Hobbs, Geo. H. Simmons, and Clarence E. Threedy, all of Chicago, Ill., for appellants.

Casper W. Ooms, of Chicago, Ill., for appellee.

Before SPARKS, MAJOR, and KERNER, Circuit Judges.

SPARKS, Circuit Judge.

Appellee by three separate actions charged the three appellants with infringement of the Nelson patent, No. 2,109,678. The causes were consolidated for trial in the District Court, and they are likewise consolidated for the purposes of these appeals.

Page 350

The patent was issued March 1, 1938, on an application filed January 12, 1937. The defenses were anticipation by prior patents and publications; a prior knowledge, use, and sale; non-invention in view of the prior art; and non-infringement. Each of the decrees found the Neslon patent valid and infringed, and ordered an injun ction and an accounting. From those decrees these appeals are prosecuted.

The invention relates to gaming devices commonly called pin ball games, usually operated by a coin. The patent is entitled 'Contact Switch for Ball Rolling Games,' and the specific thing claimed is the construction of a switch target in the form of a resilient circuit closer, so disposed on the game table as to be contacted by a freely rolling ball or other playing piece, which momentarily closes the associated electric circuit. The switch comprises a conductor standard mounted in the table and carries a coil spring having a leg pendantly disposed in the conductor ring located in the table slightly offset from the standard. The standard and ring are wired in a circuit with a source of energy and a relay coil in such a manner that when a ball rolling on the table bumps the coil spring from any angular direction, the leg of the spring will be caused momentarily to contact the conductor ring in the board to establish the circuit for operating the relay coil and any desired game auxiliary device.

A standard is mounted in an upright position on the table, the same having a reduced threaded shank passing through the table secured underneath the table by a metallic clip or nut.

The upper end of the standard is likewise reduced to form a threaded shank, the shoulder thus provided carrying a horizontal washer. The shank above the washer carries a cup-shaped cap and between the cap and washer is the end of a coil spring which at its lower end terminates in a pendant spring leg. The spring assembly is made secure by a lock washer and nut at the top of the standard.

Below the pendant leg and offset from the standard, the table is formed with an aperture in which is securely seated a conductor ferrule, into which the pendant leg is suspended and normally out of contact therewith. The ferrule at is lower end is formed with an inturning annular flange and an integral depending extension. The nut underneath the table, and the lower extension of the standard are disposed in an electrical circuit for an electromagnetic relay coil, and with a source of electrical energy.

In use, when a ball rolling on the table hits the spring to rebound therefrom, the impact moves the spring sufficiently to cause the pendant spring leg to contact with the inturning annular flange of the ferrule. This momentarily closes the circuit and causes energization of the magnetic relay coil for any desired purpose. Since the pendant spring leg is normally disposed at the center of the annular ferrule, a ball striking the spring from any angular direction will cause the circuit to close in the manner described.

Any desired number of such spring switch targets may be placed on the board in any suitable spaced relationship, and a single ball may successfully bump and close a number of the switch devices.

Claim 4 is in issue. 1

To defeat the claim in suit appellants rely upon the following prior art: Fisher, No. 501,777; Quain, No. 1,057,879; Dabos, No. 541,079 (French); Nakashima, No. 1,678,573; Hooker, No. 2,042,786; Design Patents to Tratsch, numbered respectively 94,290; 94,291; and 94,714; the application of Mabs (subsequently dismissed); the prior use of the Bolo device, made by Pacent Novelty Company; and the prior use by Fitch while employed by the Pacent Company. Concerning the prior use of Fitch the District Court said:

Page 351

'I do not believe the testimony in respect to that prior use. I do not believe there was any such prior use. ' A reading of this testimony convinces us that the court's conclusion in this respect is supported by substantial evidence. It is not claimed there is any ambiguity in the language employed by the court in expressing its conclusion on this point...

To continue reading