Crane Packing Co. v. Spitfire Tool & Machine Co.

177 F. Supp. 927, 122 U.S.P.Q. (BNA) 566, 1959 U.S. Dist. LEXIS 2744
CourtDistrict Court, N.D. Illinois
DecidedJuly 30, 1959
DocketNo. 38 C 71
StatusPublished

This text of 177 F. Supp. 927 (Crane Packing Co. v. Spitfire Tool & Machine Co.) is published on Counsel Stack Legal Research, covering District Court, N.D. Illinois primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Crane Packing Co. v. Spitfire Tool & Machine Co., 177 F. Supp. 927, 122 U.S.P.Q. (BNA) 566, 1959 U.S. Dist. LEXIS 2744 (N.D. Ill. 1959).

Opinion

CAMPBELL, Chief Judge.

Plaintiffs bring this action against defendant for infringement of Claims 1 to 4, inclusive, and 9 to 14, inclusive, of United States Letters Patent No. Re. 23,937, issued to Earl J. Bullard on February 8, 1955, on a lapping machine. Defendant denies infringement of the aforesaid patent, asserts that it is invalid and by way of counterclaim, seeks a declaratory judgment with respect to the validity and infringement of the aforesaid patent.

A lapping machine is a particular type of fine grinding machine designed and intended to impart to a work piece a finely finished surface. It comprises one or more lapping surfaces, each of which is known as a lap plate, generally made of cast-iron, upon which an abrasive compound is applied. The work piece or article to be lapped is then moved over the surface of the lap plate until the desired surface is obtained on the work piece, or as nearly to the desired surface as the capabilities of the machine permit. The lapping of a work piece causes wear and abrasion not only on the surface of the work piece but also on the surface of the lap, or lap plate, resulting in the lap surface becoming grooved or roughened, and losing its “true” or desired surface. When this occurs the lap surface must be restored to its desired or true condition.

The patent in suit discloses maintenance of a true flat surface on the lap place, or changing it from a convex to a flat, or to a concave surface, and viceversa. A wear ring (or a plurality thereof) is placed on the surface of an annular lap plate having an inner edge around a central cavity, and an outer edge. The wear ring is adapted to hold work pieces which may be placed within the ring in a work holder. Usually the work is maintained in place within the ring by having placed over it within the ring a felt pad and a pressure plate. The ring is then maintained upon the lap surface by adjustable pivot means or bearings which are adjustable so that the ring may be adjusted radially on the surface of the lap plate. As the lap plate is rotated, the frictional relationship between it and the lap ring causes the latter to rotate but not to travel with the lap plate surface since the lap ring is restrained from such travel by the adjustable pivot. The ring, therefore, rotates on the lap plate and by frictional relationship also rotates the pieces within the ring, that is, the work holder, the [929]*929work therein, the felt pad and the pressure plate, if present. In its rotation on the lap plate, and the simultaneous rotation of the plate, the wear ring of the patent in suit wears away the surface of the lap and maintains a flat surface thereon both truing the plate and holding the work at the same time. By moving the wear ring of the patent in suit radially between the outer edge and the inner edge of the lap plate, the pressure of the ring and of portions thereof on the lap plate will be made to vary. As a result, the lap plate may be caused to have a convex surface, a concave surface or a flat surface as desired, and grooves in the lap plate are removed as they may be formed by pressure of the work pieces against the abrasive material on the lap plate.

Reissue Claims 1 to 4, inclusive, and Claims 9 and 10 are all claims of patent No. 2,565,590 and remain unchanged in the reissue patent. Substantially, they cover an apparatus for forming a true surface of predetermined contour upon an article. Reissue Claims 11 to 14, inclusive, are added as a result of the reissue patent. Reissue Claims 11 and 12 cover the method of changing the contour of the surface of an annular lap to cause it to conform to a standard surface whether that standard surface be flat, concave or convex. Reissue Claims 13 and 14 cover an apparatus for forming a plane surface on an article.

Defendant, by its answer and counterclaim as amended, contends that:

(1) Claims 1 to 4, 9 and 10 are invalid as defining an aggregation;

(2) Claims 11 to 14, inclusive, are invalid because of public use and sale;

(3) Claims 1 to 4, 9 and 10 are invalid in view of certain prior art patents;

(4) Claims 11 to 14 are anticipated by certain prior art patents;

(5) Claims 1 to 4 and 9 to 14, inclusive, are invalid on the grounds of indefiniteness ;

(6) Claims 11 to 14, inclusive, are invalid as not covering the invention intended to be covered by Bullard in his original patent No. 2,565,590;

(7) The reissue patent was wrongfully issued;

(8) The claims in issue are invalid because the patentee failed to comply with Sec. 112 of the 1952 Patent Act;

(9) Claims 1 to 4 and 9 to 14, inclusive, are not infringed by defendant’s device.

I now consider defendant’s first contention. It is well established law that “the mere aggregation of a number of old parts or elements which, in the aggregation, perform or produce no new or different function or operation than that heretofore performed or produced by them is not patentable invention.” Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp., 340 U.S. 147, 151, 71 S.Ct. 127, 130, 95 L.Ed. 162; Anderson Co. v. Sears, Roebuck and Co., 7 Cir., 265 F.2d 755. Pleatmaster, Inc. v. J. L. Golding Mfg. Co., 7 Cir., 240 F. 2d 894, 899. Conversely, “a novel combination of old elements which so cooperate with each other so as to produce a new and useful result or a substantial increase in efficiency, is patentable.” Anderson Co. v. Sears, Roebuck and Co., supra, [265 F.2d 762]; Weller Manufacturing Co. v. Wen Products, Inc., 7 Cir., 231 F.2d 795, 798. In Anderson Co. v. Sears, Roebuck and Co., supra, the Court further explains the rule by pointing out that it is not patentable invention “where the result obtained was obvious, expected, old or merely an improvement over an old result.”

A comparison of the reissue patent in suit, as shown in Fig. 1, with Morton patent 1,691,120, as shown in Fig. 5, in light of Hoke patent 1,536,714 as shown in Fig. 1, is as follows:

As shown in the Morton patent, 3 is a rotatable lap comparable to the lap 1 of the Bullard device. 1 is a means in the form of a ring comparable to the ring 61 of the Bullard device which maintains the surface of the lap in condition and which ring 1 of the Morton, like the Bullard ring 61, is rotated about [930]*930its own center and also relative to the lap. While Morton does not show a work holder such as the Bullard work holder 62 within the ring 1, such a work holder is shown in the Hoke patent at 35. It appears that the work holder 35 of Hoke can be bodily lifted out of the Hoke device and placed within the ring 1 of the Morton device with the apparent result that the work holder 35 of Hoke would function substantially in the same manner as it did in the assembly of the Hoke device and in the same manner as the Bullard work holder 62.

A comparison of the reissue patent in suit, as shown in Fig. 1, with Desenberg patent No. 2,352,146, as shown in Fig. 1, and Hoke patent No. 1,536,714, as shown in Fig. 1, is as follows:

The device of the Desenberg patent is a lapping or grinding machine with a rotatable lap 17 comparable to the lap 1 of the Bullard device.

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177 F. Supp. 927, 122 U.S.P.Q. (BNA) 566, 1959 U.S. Dist. LEXIS 2744, Counsel Stack Legal Research, https://law.counselstack.com/opinion/crane-packing-co-v-spitfire-tool-machine-co-ilnd-1959.