Parks-Cramer Co. v. American Monorail Co.

147 F. Supp. 218, 112 U.S.P.Q. (BNA) 431, 1957 U.S. Dist. LEXIS 4233
CourtDistrict Court, W.D. North Carolina
DecidedJanuary 4, 1957
DocketCiv. A. No. 1072
StatusPublished
Cited by1 cases

This text of 147 F. Supp. 218 (Parks-Cramer Co. v. American Monorail Co.) is published on Counsel Stack Legal Research, covering District Court, W.D. North Carolina primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Parks-Cramer Co. v. American Monorail Co., 147 F. Supp. 218, 112 U.S.P.Q. (BNA) 431, 1957 U.S. Dist. LEXIS 4233 (W.D.N.C. 1957).

Opinion

WARLICK, District Judge.

This is a patent suit in which infringement is charged in the usual form. The defenses likewise are the customary ones of invalidity and non-infringement. Plaintiff’s action charges the defendant with the infringement of Claim 6 of United States Letters Patent No. 2,524,-797, which issued on October 10, 1950 to it as the assignee of Grover B. Holtzclaw, the inventor. The patent rights are wholly owned by plaintiff.

Plaintiff is a corporation organized under the laws of Massachusetts, being engaged in the business of designing, manufacturing, and selling and installing various articles of textile machinery, and designs, manufactures and sells travel-ling cleaners for such machinery. It maintains a regular established place of business in Charlotte, in the Western District of North Carolina.

The defendant is an Ohio corporation and is similarly engaged in the business of designing, manufacturing and selling various types of machinery, including travelling cleaners for many textile machines. For many years it has maintained a place of business in Charlotte and does considerable business in North Carolina.

Jurisdiction arises under the patent laws of the United States.

In its answer the defendant alleges the invalidity of said Letters Patent No. 2,-524,797 issuing to the plaintiff as assignee of Holtzclaw on the grounds of anticipation, prior public knowledge, use and sale, lack of patentable invention and failure of Claim 6 of the patent to point out with particularity the invention as required by 35 U.S.C.A. § 112. It likewise denies infringement of Claim 6 of said patent.

[219]*219Plaintiff has been engaged in the business of designing and manufacturing travelling cleaners for textile machines for approximately thirty years. One among the big problems involved in the manufacture of textile fabrics and yarns from cotton and other similar short staple fibers is the collection of lint which sheds rapidly during the manufacturing operations. It seems to collect on all types of textile machines, particularly spinning and weaving frames, — very often forms into bunches, frequently becomes caught in the yarn's as they are being drawn, spun, wound, and woven, causing all sorts of imperfections in the yam and spun fibers. Breaks frequently occur which makes piecing and splicing necessary, and naturally results in much damage to the product.

One among the major items in the cost of textile manufacturing is keeping textile machines, room surfaces, and material being used, as free from lint as possible. In spinning this is an important item. Prior to 1926 when the first travel-ling cleaner was placed on the market the cleaning of spinning frames and looms was done by hand. The lint would be wiped or brushed off by the operator or blown away by manually using some sort of compressed air gun, — a slow, tiresome and expensive operation and one that had plagued the industry since machines came into use. Around 1926 travelling cleaners running continuously on a track located above the row of textile machines such as spinning frames, winders, twisters warpers and looms, were manufactured and placed on the market. These cleaners as installed and geared up, and when in use, resulted in blowing away the accumulated lint at regular intervals.

This heralded an advance in the manufacture of cotton goods and reflected a considerable saving to the trade. These travelling cleaners were developed from year to year as man’s ingenuity was put into practical effect and as new thoughts added something to the older art. Blowers operating on an overhead trackway over rows of textile machines and used to clean them were consequently old art long before the patent in suit.

The patent of Walker, No. 1,781,142 was filed for in 1925. The Lytton patent, No. 2,011,770 was filed a year or two thereafter. These cleaners consisted of, as do all of such machines, a motor driven carriage operating on a track placed above the machine, ordinarily being affixed to the ceiling overhead, and consists of a fan, a casing therefor, and rigid outlets likewise being placed above the machines and over the heads of the operators, through which outlets air from the fan’s operation was directed downwardly toward the machines. They were all right as far as they went, but each, up until the patent in suit, was limited in its cleaning and failed to operate upon many surfaces of the machine, particularly those not in a direct line of the air outlet.

A spinning frame invariably consists of at least three creel boards, as such is known in the trade, — called a bottom, a middle and a top creel board. The exhibits offered in evidence fully reflect the appearance of a spinning frame, loom, etc., and easily show the various parts of such machines. Since the air outlets were directed downwardly, each in its operation would fail to clean underneath the creel boards and in the underframe area. This resulted in the operator spending much of his time in hand cleaning the machines, which he operated.

During the years that followed many men skilled in the art of textile cleaning were continuously undertaking to devise some means for cleaning the lint from the various surfaces of such machines not cleaned by the machines of the Walker and Lytton types. These undertakings are best illustrated by the Smith patent No. 1,920,768, the three patents issuing to W. B. Hodge, numbered 2,047,558,— 2,063,873, and 2,063,874, and others issuing to Lawrence and Moore, etc. These patented devices were an improvement over the first patents, but proved ineffective, and the industry was continual[220]*220ly on the lookout for and in need of workable improvements.

The defendant actively had a part in the efforts to bring about a. solution to this cleaning problem, and through its ownership of the Miller and Becker patent, No. 2,516,475, and other types of cleaners, offered to the industry a motorized equipment operating on a track suitable for cleaning the under portion of the spinning frame. These evidently were not entirely successful and did not prove commercially competitive to the patent in suit.

Being confronted with the constant demands of textile manufacturers plaintiff’s research director, George B. Holtzclaw, began a study of the problem from a practical angle and finally hit upon the idea of making use of extended air outlets which would make it possible to deliver air currents of the proper volume and needed velocity to the right places and in the proper direction. Such outlets to be made of a flexible type of material in order to yield if they should come in contact with the machine operator, or any other obstruction as the cleaner travelled on the overhead frame. The air vents on the extended flexible nozzle or sleeve would make it possible to clean any area of a spinning frame or other machine which theretofore the travelling cleaners had failed to reach, and through the flexible sleeve or nozzle the textile worker was protected from injury. Having conceived of this idea he made application for a patent on December 12, 1947 and on October 10, 1950, plaintiff, as assignee of Holtzclaw was issued the patent in suit.

Claim 6 of the patent, and this is the claim on which plaintiff bases its action, is as follows:

“6.

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147 F. Supp. 218, 112 U.S.P.Q. (BNA) 431, 1957 U.S. Dist. LEXIS 4233, Counsel Stack Legal Research, https://law.counselstack.com/opinion/parks-cramer-co-v-american-monorail-co-ncwd-1957.