United States Court of Appeals For the Ninth Circuit . this application does not disclosethe feature of the drive nut fitting the stem so closelyas to be contacted with, and raised by, the collar orsleeve on said drive stem. We present on the opposite page figures i and 2,taken from the drawings in the patent. (See Book ofExhibits, pages 1379 and 1380.) These drawings andthis patent show a hoodlebug device to which has beenadded a feature intended to connect the drive bushingswith the rotary table by a non-positive means whichwould prevent breakage if the drill pipe suddenly be-came arrested i
United States Court of Appeals For the Ninth Circuit . this application does not disclosethe feature of the drive nut fitting the stem so closelyas to be contacted with, and raised by, the collar orsleeve on said drive stem. We present on the opposite page figures i and 2,taken from the drawings in the patent. (See Book ofExhibits, pages 1379 and 1380.) These drawings andthis patent show a hoodlebug device to which has beenadded a feature intended to connect the drive bushingswith the rotary table by a non-positive means whichwould prevent breakage if the drill pipe suddenly be-came arrested in the drill hole. The construction ofthe hoodlebug stem and the two bushings, ivhich ap-pellee insists zvere not yet invented (Brief, page 30,line 8), are plainly shown in these drawings. (Figures3, 6 and 7 of the patent.) In our reproduction of thesedrawings we have connected the corresponding partsby dotted lines, and so placed the views as to showall of the larger dimensions of the collar at one sideof the drive bushing. The record shows [Vol. II,. Reproduction of drawingWillard & Tiloox more than fifiling date. This reprcductiarranging parts of the patentlar (C) and drive bushing apeparison. NOTE: These drawings dior member (c) on the drive atmeter than the internal diaiTiecollar on the louver end of or member (C). Thereeesity, contact with and raierotary table when the drive s of Patent ,149,486 filed byve months prior to the Griffinon is m^de by cutting out and drawing so ae to place the col-rture in juxtaposition for com- scloee the fentj^re of the collarerr. being larger in external dia-ter of the drive bmsting. (8) .Thee atem (D) is identical with thefore, this collar will, of nee-e the drive bushing (8; frcn. thetem Is raised. —29— page 527] that the stem (D) was made of extraheavy pipe (d) and was connected to the drill pipeby a standard collar or sleeve (C) shown in figure is plain in this drawing that the drive stem (D),with its jackets, fits
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