Mayview Corp. v. Rodstein

385 F. Supp. 1122, 184 U.S.P.Q. (BNA) 466
CourtDistrict Court, C.D. California
DecidedSeptember 12, 1974
Docket71-531, 71-1832-DWW
StatusPublished
Cited by1 cases

This text of 385 F. Supp. 1122 (Mayview Corp. v. Rodstein) is published on Counsel Stack Legal Research, covering District Court, C.D. California primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Mayview Corp. v. Rodstein, 385 F. Supp. 1122, 184 U.S.P.Q. (BNA) 466 (C.D. Cal. 1974).

Opinion

MEMORANDUM DECISION

DAVID W. WILLIAMS, District Judge:

Mayview Corporation brought, an action for a declaratory judgment against Harvey Rodstein and companies controlled by him to have Patent No. 3,-563,134 (’134) on a straight line sander and three design patents 1 declared invalid and not infringed by plaintiff. Plaintiff included a cause of action alleging a Sherman § 2 violation and further contending that the ’134 patent was invalid because Rodstein was not the true inventor and had also practiced fraud upon the patent office. Defendants counterclaimed charging infringement of all four patents and of the trademark “Rodac.” Other counter claims were abandoned at trial. Mayview admits offering for sale in this district and elsewhere, single-piston straight-line sanders, orbital sanders and drills and it is these that defendants claim infringe. The parties are competitors in the manufacture and distribution of hand-operated air tools.

The history of the development of the ’134 patent is integral to the issues of validity and infringement. Prior to 1966, Air Tool Corporation of America (ATCOA) developed and produced a straight line sander which it called the Viking and which became the subject of Patent No. 3,215,823 (’823) now issued Nov. 2, 1965. This was a double piston tool. ATCOA also produced a single piston straight line sander which it called the Cobra and which became the subject of Patent No. 3,399,494 issued Sept. 3,1968.

ATCOA arranged with Rodstein to have the two models manufactured in Japan by Shoei Electric Co. and bring them to the United States to sell to ATCOA for resale. Later, Rodstein’s company (Rodac) became involved in litigation with ATCOA and as part of the settlement Rodstein ceased to import the sanders.

At that point Rodstein decided to develop his own straight line sander for manufacture which he hoped would not infringe upon either the Viking or Cobra. He solicited the help of his associates Tom Sato (son of the owner of Shoei Electric) and counterdefendant Irving Fisher for ideas concerning a single piston tool. Sato and Fisher tried to develop such a sander and Rodstein was aware of their work.

Sato turned out drawings of a single-piston sander which included a valve disposed above the single double-ended piston at a position intermediate the length of the piston. His father constructed a unit from the drawings and Rodstein brought the unit from Japan to the United States in September 1968.

Fisher’s work produced a spring-driven single piston sander that proved unsatisfactory. He then produced a crude prototype of a straight line sander with a single double-ended piston by using copper tubing to introduce air under pressure alternately to opposite *1124 ends of the piston so as to drive the piston on a reciprocating basis in opposite directions. Rodstein knew of this work.

Later, Rodstein hired Kunio Sumida to develop his idea. Sumida is a highly-qualified engineer with a number of patents in various technical fields. He designed and developed a prototype sander similar in operating principle to the Viking but having one double ended piston like the Cobra. In assembling this, Sumida used several parts from a Viking sander but,changed some other parts. Eventually he developed a tool that had high reciprocation with a low vibration level and Rodstein seemed well pleased with the testing. He told Sumida he was going to take the prototype to Japan to be produced and that he could “lick the market.” Indeed he did have Shoei manufacture the unit for him for sale in this country. In 1969 Shoei changed ownership and became known as Compact Tools and the new company made tools for Rodstein.

It was the Sumida prototype that was to later become the ’134 patent. Thereafter, Mayview placed orders for air tools with Compact and one of Mayview’s sanders, the Astro, is substantially similar to the Rodac sander based upon the ’134 patent. This forms the basis for the present infringement claim.

The ’134 patent discloses a sander which includes a body with a longitudinal bore. A single double-ended piston is positioned within the bore and is reciprocatable within the bore. A rotary valve having a vertical axis communicates with the bore. It includes a cylindrical sleeve, a valve member and a drive member which are provided with slots to communicate with the piston so that air under pressure can pass through slots in the valve and be applied to one end of the piston while air is being exhausted through other slots in the valve from the other end of the piston.

A spur or pinion gear is carried by the drive member and is engaged by a rack gear movable with a shoe. A rack gear member having teeth on its underside is supported by the piston between the opposite ends of the piston. The rack gear meshes with a pinion gear which in turn meshes with another rack gear to which is attached a reciprocatable shoe.

Air under pressure is applied first to one of the piston ends to drive it in one direction and at the same time air is exhausted from the other piston end. This is alternated and the end result is a reciprocating motion of the shoe when the piston means and the shoe are driven in opposite directions. Vibration is kept to a minimum by balancing the mass of the reciprocatable .piston against the mass of the reciprocatable shoe.

Defendants claim that a major achievement of the ’134 patent is that it accomplishes a more precise balancing between these members, and thus reduces vibration to commercially acceptable limits; but the Viking ’823 patent explained the balancing of the weights of the piston and the shoe to reduce vibration.

Courtroom tests were conducted with several sanders and it was possible to experience by feel and then to observe by instrument measurement the varying levels of vibration during operation of the tools.

I was not convinced that the ’134 patent contributed in an inventive way to the art of balancing, or that it achieved total elimination of vibration.

The ’134 patent is entitled to the presumption of validity by virtue of its issuance by the Patent Office. 35 U.S.C. § 282. However, the presumption is not conclusive, but exists simply to give the grant substance and value. Mayview v. Rodstein, 480 F.2d 714, 718 (9th Cir. 1973). Mayview strongly urges invalidity on the grounds that a body of prior art existed at the time of the issuance of the ’134 patent which negatived novelty and invention, 35 U.S.C. §§ 102, 103, and that material mis *1125 representations to the Patent Office amounted to fraud in the issuance of the ’134 patent. The contention is meritorious,.

The tests of validity are utility, novelty and non-obviousness. Graham v. John Deere Co., 383 U.S. 1, 86 S.Ct. 684, 15 L.Ed.2d 545 (1966).

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385 F. Supp. 1122, 184 U.S.P.Q. (BNA) 466, Counsel Stack Legal Research, https://law.counselstack.com/opinion/mayview-corp-v-rodstein-cacd-1974.