In re Deters

515 F.2d 1152, 185 U.S.P.Q. (BNA) 644, 1975 CCPA LEXIS 160
CourtCourt of Customs and Patent Appeals
DecidedMay 8, 1975
DocketNo. 74-627
StatusPublished
Cited by7 cases

This text of 515 F.2d 1152 (In re Deters) is published on Counsel Stack Legal Research, covering Court of Customs and Patent Appeals primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
In re Deters, 515 F.2d 1152, 185 U.S.P.Q. (BNA) 644, 1975 CCPA LEXIS 160 (ccpa 1975).

Opinion

RICH, Judge.

This appeal is from the decision of the Patent and Trademark Office (PTO) Board of Appeals affirming the rejection of claims 1 and 2, the only claims remaining in application serial No. 849,686, filed August 13, 1969. We affirm.

THE INVENTION

The invention relates to apparatus for cutting clay drain tile from a continuously extruded blank of wet, green clay by passing a wire through the blank at regular intervals. The improvement to which appellant’s claims are directed lies in causing the cutting wire to move in an undulating path as it passes through the blank, producing individual drain tiles with uneven or undulating ends. As explained by appellant, optimum drainage is obtained when the tiles are laid with small spaces separating them. Tiles with undulating ends are less time-consuming to lay with the proper spacing than are tiles with straight ends. The claims on appeal read:

1. In apparatus for cutting a plurality of clay tile from a continuously extruded and moving blank comprising [1153]*1153means for conveying the tile and tile blank through the apparatus in a predetermined direction of travel with and in continuous motion, cutting means for severing the tile from the blank, and means for passing the cutting means through the blank to sever the tile and to maintain the path thereof perpendicular to the direction of travel of the tile and blank as the blank is continuously extruded and the tile and blank are moved in continuous motion through said apparatus, the improvement of means for reciprocating said cutting means longitudinally, relative to the direction of travel of said tile and blank, as said cutting means makes each perpendicular pass through said continuously moving blank during simultaneous longitudinal movement of said blank and longitudinal movement of said cutting means.
2. In an apparatus for cutting a plurality of clay tile from a blank having a longitudinally extending axis comprising endless chain means for conveying the tile and blank through the apparatus, a rotary cutting reel supporting a plurality of cutting arms thereon having ends spaced apart a greater distance than the diameter of the tile to be cut, wires for cutting and severing the tile from the blank, a said wire extending between the ends of each said arm, guide means carried by said endless chain, each said guide means having a face lying in a plane perpendicular to said axis and engaging said ends of a said arm, said guide means guiding said arms and wire engaged thereby to move in a path perpendicular to said axis of said tile and blank as said tile and blank are advanced through said apparatus, and means maintaining said ends of each said arm in engagement with said face, of said guide means while the wire extending therebetween severs a tile and is in the path of travel of said blank, the improvement that said guide means comprises at least one longitudinally displaced surface on said guide means in a different plane than the plane of said face, and a plurality of angularly disposed surfaces interconnecting said at least one longitudinally displaced surface with said face of said guide means for reciprocating the ends of said arms and the wires, respectively, carried thereby longitudinally, relative to said axis of said tile and blank, during each cutting and each return pass through said tile blank to cut and sever a tile therefrom.

THE REJECTIONS

Patents Cited

Nelson 1,164,846 Dec. 21, 1915

Scheibl 2,263,474 Nov. 18, 1941

Deters 3,503,103 Mar. 31, 1970

Nelson describes apparatus for cutting bricks with square ends from a moving slab of plastic material with a cutting wire. The cutting wire is guided by rollers which slide along a straight track. Appellant acknowledged at oral hearing that his invention is an improvement on Nelson’s basic apparatus.

Scheibl shows a device for making irregular cuts in a moving slab of extruded wet, green clay by guiding the cutting wire or wires with rollers adapted to move longitudinally of the slab in irregularly shaped slots in a template mounted on the device.

Deters, which issued to appellant on the application of which the instant application is a continuation and which thus contains the same disclosure, describes apparatus for “cutting undulated ends on continuously moving tile.” Claim 1 of Deters reads as follows:

1. In an apparatus for cutting clay tile from a blank comprising endless chain means for conveying the tile and blank through the apparatus, a rotary cutting reel supporting a plurality of cutting arms thereon having ends spaced apart a greater distance than the diameter of the tile to be cut, wires for cutting and severing the tile from the blank, a said wire extending between the ends of each said arm, guide means carried by said endless chain and having faces lying in verti[1154]*1154cal planes and engaging said ends of each said arm, respectively, and guiding said arms and wire to move in a vertical path, perpendicular to the longitudinal axis of said tile and blank as said tile and blank are advanced through said apparatus, and means maintaining each said arm end in engagement with the faces, respectively, of said guide means while the wire extending therebetween severs a tile and is in the path of travel of said blank, the improvement that said guide means comprises a plurality of vertically spaced, longitudinally displaced surfaces on said guide means and in a different vertical plane than the plane of said face, and a plurality of angularly disposed surfaces interconnecting each said longitudinally displaced surface with said face of said guide means for reciprocating the ends of said arms and the wires respectively carried thereby longitudinally, relative to said axis of said tile and blank, as said arms and wires are, respectively, guided vertically to cut and sever each said tile from said blank.

The record also contains an affidavit of Sessions, a consulting engineer, which states his opinion that Scheibl does not show how to make undulating cuts automatically and that Scheibl is an inoperative paper patent if employed in the context of appellant’s invention. Sessions also gave his opinion that appellant’s method was not obvious to one of ordinary skill in the art.

Examiner’s Views

The examiner rejected claim 1 on Nelson and Scheibl as obvious under 35 U.S.C. § 103. In his Answer he explained:

Nelson admittedly shows appellant’s apparatus but for the means to reciprocate the cutting wire to make a contoured cut * * *. Scheibl is cited simply to illustrate that which should be obvious to anyone; to wit, if one presents a contoured cam surface for the cutter follower to follow, then the cutter is going to make a contoured cut. The only reason Nelson does not make a contoured cut is because his cam surface * * * is straight.

The board affirmed this rejection:

Appellant has challenged the soundness of this combination of references by faulting the Scheibl patent because it discloses a manually operated mechanism which is intermittent in its operation. In support of his position, appellant has made reference to an affidavit of Mr. Sessions which discusses the Scheibl patent in the same light as appellant has done, i. e., as if it were the basic reference.

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515 F.2d 1152, 185 U.S.P.Q. (BNA) 644, 1975 CCPA LEXIS 160, Counsel Stack Legal Research, https://law.counselstack.com/opinion/in-re-deters-ccpa-1975.