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Page 1: 10055323
L i 1. Puff Count I~ is generally accepted that at least about 8 puffs are needed for a commercially acceptable cigarette. Resnik is silent as to how to relate circumference (C) to number of puffs (n). However, Resmik's Figure 1 relates SBRd {static burn re~e distance in mm/min) to puff count, and Resnik's Fig. 8 relates SBRd to C. Following Resnik's linear relationship shown on Fig. 8., and likewise making a linear extrapolation from that~___ .~ figure as the Geneva cour~ did from Fig. 9, then Fig. 8 /o~~'~'~ to SBRd - 7.6 at 15 mm circumference and SBRd - ~ ~i extrapolates 7.2 at 17 ~m circumference. Plot~ing those points against ~ ~ extrapolated C = 15 mm and n - 6.73 at C - 17 ram. These predicted values" ~%0>~ are too low for commercially acceptable cigarettes, and are fa~~ below acEual values obtained following the Luke inventi : /, ...~ mm circumference and 6 73m._ ~ 6";5sv;; 8;: :a~a~Uf~;f:°;o;517 .'circumference. 71 .°. . • ° r Thus, Resnik's ,,predictions" as to puff count teach away from the Luke invention and demonstrate that Luke's high puff count is unexpected. At the same time, this extrapolation %ZZZ SO0 L ClibPDF - www.fastio.com
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\ from Resnik's teachings demonstrates that even if a person skilled in the art made the extrapolation from Figure 9, he would not believe such an extrapolation to be of any value. 2. Total Tobacco Weight Another aspect of the Luke invention is increased efficiency of tobacco utilization. Total tobacco burned may be calculated a number of ways. One is nWp + (n-l) SBRm x time between puffs. Where Wp = weight burned per puff - 2 - O O tn tn t~ t~ ClibPDF - www.fastio.com
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Assuming n = 8, then n - 1 n 7. We further assume that the time between puffs is about 1 minute (smoking machine 2 sec. puff, 58 sec. pause) and SBRm is at the minimum ~.~l I| For Wp, Yamamoto et. al., °Effect of Cigarette Circumference or Weight Loss During Puffs and Total Delivery of Tar and Nicotine', Beltra~e zur Tabakfo~schunq ~nternational, Vol. 12. No. 5o Nov. 1984o pp. 259-269, states that Wp is proportional to radius "r" [5]. From Yamamoto's Table 4, Wp for C = 25 is about 26 mg (average of Virginia and American blends). Table 5 adjusts for ash content to get total weight ~ , Io.s after th, ash is discarded, for n puff,: ~~<~ where A-, a,h content, abou~averag, for tO W, for 15 mm is then expected to be about Wp,s - W,,s z rl.~5 m 15.6 O r25 and nWpls/(l-A) - 8(15.6)/(i-0.145) - 146 mg and (n-I)SBR, - 7(60) , 420 or a total of 566 mg tobacco burned. Allowing for a 10% butt (I0 ~m of I00 u=n for Ex. A & B), total tobacco is 566/.9 - 629 mg/ Thus, Yamamoto p=edicts ! abou~ 629 m~ of tobacco is needed for 8 puffs at a - 3 - (o243e) CD r,.,n (.,,j CD ClibPDF-www.fastio.com
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cir~erence of 15 m. In fact, Ex. A of the invention at 15 ~ got 8.2 puffs, with only about half the total tobacco weight, or 325 mg. This p~oves the invention's unexpected two tins greater efficien~ of tobacco utilization, as set forth in claim 16 of Re. 32,615. 4. Taste/Tar ~~ ~~ ~other of the une~ected results of our invention is that with half the tobacco (Ex. A versus ~. Orthodox), sufficient tar is delivered in the mainstream smoke (T~) for acceptable taste. Yamamoto states that Tt is proportional to r2. Applying that ratio to the data in Re. 32,615 for Ex. A and ~. orthodox, T, for 15 m would be expected to be: - 14.5 (15z/25z) - 5.22 In fact, example A delivere~.6 ~ nearly twice as ~ch, proving again the une~ectef nature of our invention as - 4- (0243B) C:D <D tJ~ r~ ClibPDF-www.fastio.com
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