Tobacco Documents Online

~ ~ r United' StatesPat+ent o19) (lly Patent Nutaber, 44,6279448 Kamm et a1. g;t51 Date of Patent: Dec. 9, 1986! TOBACCO SMOKE ARTICLE HOLDER AND METHOD THEREFOR (76) lnventors: Roger D. Kayata 77 Marion Rd.. Watertown. Mass. 02173: Lonis Fine. 601 North Grove. Oak Park, [1l1 60302 (211 Appl. : to:: 705.160 (R2), Filed: Feb. 2b, 1985 [5'1)' ant: C1.•' ....................... A2AF 13r0'2: .#21F' 13/03 (52j UJS. Cll ...................... . ..... 131/187: 131r&73; W38 [S81 Field of'Scaricb .............. t'3113c0. 1197 . 190. _73: 131r908;, :3i 38. 31 i [561 References Cited U.S. PATENT DOCL':b1ENTS 3.1I13.'67 1_:1963 Tyrre0 s.3'b16.:81 6/196! Menge ee al. ._ _.._ ..__..._. :3Ji1 3.548.341 12/1970 Caughey 1310-30 3.580.053 ' 5/1971, Motins 73/41 j.019-1fi6 w 1977 CIaQia et al. _._ ................ . 131 /330. +,;i6:: 4 1i11Vi1 Fksultes et al. T3/31f FOREIG7V' PATENT DOCUMENTS 10".5'1,:3' ./1951 Fed. Rep. of Coennany ......... '3/38 1356012 6i 197Y l;lnted,Kinrdom .............. 73y36 Pnmanv Exominer-Vincent Millin Asustnnt Examiner-H. Macev Atrorney. .agent or Firm-Charles G. Lamb [57) ABSTRACT ' A tobacco smoke article holder for a testing machine and a method of mounting, a tobacco smoke article in the holder to simulate the human smoking process in- cluding an intlatably lined ao.c-thnough conduit havrng a deptfi substantiall3• equal :o the ati•eragc width of' a human Iip and a cross-ssmtion in liner-relaxed state ap- proximating the cross-section of the tobacco ~ smoke article to accommodate nor~.al d.lscruon depth of the tobacco smoke article. 14 CLiias, 2 Drawing,FiYura » 1 i

I , E ,DL 2028397SS6 I

i 1 4;627;448. TOBACCO S,WOKE'AR'I7C°i.E HOLDER AND METMOD THEREFOR' BACKGROUND OF THE INVENTION 1. F-ield' of the Invention The presetu inveatioa relates to tobatxo smoke arti- 2 pans to assemble and a minimum of steps to efficiently and effectively operate. Various other features of the present invention wi11' become obwious,to one skilled in the tut, upon reading' the disclosure set forth i herein. 5 SUMIrWRY'O'F THE INVENTION de testing', aed. tnore patticularly, to an improved i to- More particularly, the present invention provides a baceo smoke article holder for a testing machine and a, tobacco smoke articrk holder for a tobacco smoke arti, method of mounting a tobacco smoke article in the 10 elt: testing machine capable of simulating tobacco holder: smoke article filter-human lip mucosal relation eompris- 2: Description of the Prior Arr ing: a Qow.through eondltit having a flutdipressure inlet In the tobacco smoking art, it is generally well known means passing through the wall thereof: artd, an inflat- to test smoking articles on smoking machines which able. Ilexible liner sized to line the inner, face of'the collect total particulate matter on a smoke fdter, the 13 fbw-through conduit with the extremities thereof fas- colkcted particulate matter being subsequently e:- tened in sealed relation to the extretnities of the conduit tracted'from the smoke filter. measured and analyzed. It with the lined aonduit providing,an internal depth sub: also is generally well known in thttobaceo smoking art: stantially equal to the average width of a human lip. the I to maintain the integrity of'the mouth end1 of the to- lined conduit having a cross-section when the liner of bscco smoke article to, be tested on a testing, machine m' the conduit is in relaxed state approximate to the cross- , without undesinbkdeforteatioa which, atight result in' section of the tobacco- smoke antick to be tested an adverse efTect upon testing operations and.' at the whereby ittsertioa of a tobacco smoke arttck in one end samr tiate, it is necessary to support the mouth end!of a of'the ctrrtduit'to a depth substaetiatly equal to the ttor- . tobaaco smoke article at a bolder of a testing machine in mal insertion depth of such tobacco smoke article be- sealed relationship with sueb holder to avoid undesir- 25 tween the lips of a human smoker and in conformance able fume and air leakage. Vsarious tobacco smoke arti- with normal industrial testing stattdards,results in simu• ck bolder arrangements have been utili:ed in thrpast to lating tobacco smokr artick filter-human lip mucosal support the moulh ends of tobacco smoke articles in a relation., ln addition, the present invention provides r testing ttuu:hutr in sealed rdatioa therewith wittiottt method of mounting the mouth extremity of a tobacco mouth end deformation. Such past artangetnents have ~ smoke artiele.into a flexibly 6ned, fluid intlatable to- included inflatable skeves arranged to surround and seal the moutlt end ofa tobaeeo article when inAated, as bacco smokrartick tiolder for a tobacco smoke article disclosed in U.S: Pat: No. 3i3g6,2g1. issued to, G: testing machine comprising: sizing the depth of'the &lienges et al„on lunr4. 1!96g;,semi+eylindrital eottave flexibly lined Iholder to a,depth substantially equal!to the jaws coated with fo.m rubber which i compressively 35 average' total width of a human lip and the eross-sec- surround'and clamp around the mouth end of a tobaeco tional area when in relaxed state substantially equiva• artick as disclosed in U:S. Pat. No, 3.33'9.102; issued to lent to the cross-sectional area of'the mouth extremity W,: Rudsxinat on Sept. S. 1967~ and deformabte elastic of the tobacco smoke artick: inaeniwg the tttouth ex= tubtdar sealing elements - the bore of which sutiottnd; treraity of'the tobacco stttoke article into the flexibly ingly receives the mouth errd of the tobacco smoke 40 liaed, fluid inflatable holder to a depth epuivalent'to the artiek - as d"nclosed in US: Pat. No. 3,769.E32, issued to noomal insertion depth of such tobacco smoke article I4 Baier on Nov. 6. 19131 le fact, thrbroad use otiluid betiween the lips of a butttan smoker, applying fluid pr¢ssure flexible sleeves to bold artick erds also is well pressure through the flexible liner on the mouth end of known 1 in «on-allied arts, such as is diselosed! in the the tobaoco'smoke arnick equivalent to the lip pressure macbine tool chuck assembly set forth in U!S. Pat. 140. 4s on the tnouth end of the tobacco smoke artick during 3.679;2I9. issued to G. N. Cameron on July 254 1992' normal smoking: and; selecting the appropriate elastic- However., none of, the abovenoted patents teaches or ity for the flexible liner so as to produce the desired suggests the novel concept of applicant's present inven, amount of mucoisal roll i behin&the tobacco smoke arti- tion, which not only recognizes the importance of cle: mouth end!sealing of'a tobacco smoke article in a holder So It is to be understood that various changes can be of'a testing,machine without deformation, but further made by one skilled in the art,in the arrangement, form recognizes the importance of simulating hurrtan, lip- and construction of the apparatus disclosed herein and mueosal relation i in such tobacco smoke artick holders in the several steps of the method disclosed herein with- including control of', the significant parameters of out departing from the scope or spirit of' the present human lip pressure. average 6p width.,mouth end inser- S'S inventiona _ ~ BRIEF DESCR'~IPTION OF THE~ DRiA'WINC'i~ dinate testing machine holder deformation and ventila. Referring to the dnwing which discloses an advanta- tion occllrsion or impairment,beyond that which might geous embodiment of the inwentive tobacco smokrarti- ordinarily occur with the human smoking, of the to- 6o cle holderc bacco article to be tested. FIG. I is an exploded sidt view of the inventive, In addition to recogoizeng,and prov,iding,a tobacco holder faow-throuRh conduit and a novel flow-through, smoke article holder for a testing, machine which best coupler arranged to engage with the fdter holder of a simttlatos hu.man smoking to permit accurate testing, the testing machine; and. Pres+ent' invention provides a novel tobacco smoke uti- 65 FIG. 2! is a side v,tew of the inllatsbk liner, sized too cle holder assembly and!method of operating the same, line the inner (ace of the (Do!w-througb conduit of FIG. which is strarghtforward and economical'm manufac. 11 with the,extnemiues tbereoflsi¢.rd to overlap the ex- ture. assembly and operanon, reqtunng a minimum of ucrnaJ grooves of the flow-through eooduit' of FIG. I, tioa of the tobacco smoke article to be, tested in the bolder, and normal human imucosal roll - avoiding inor-

3' 4,627,448 and to be fastened thereto in sealed relation with the In assembling holder 2. liner 8'is ioserted 'm the inte- conduit., riot of the conduit toic'trcumferentiaqy line tbe' inner DETAILED DESICRIPTIOI+IiOF Ti[E DRAWIPdG wall surface of the condlrit with the opposite eads 1'I folded back to overlap the outer wall surfacrof evaoduit As catt be seen in FIG~ 1. the inventive tobacco 5 3 at the cooduit inlet eod aadoutkt ead andiouter amu- smoke article holder„ broadly referred to by reference Iar grooves C The O-sealing rings 7'are then slid over numeral 2: includes a risid conduit having an inlet end the liner ends overlapping the eonduit inlet aard'oatkt and an outlet end 3 which can be machiited from a casr ends into grooves 6~ of'the conduit 3 to ensure an air acrylic nod to have a length of approximately 12 mwL tight seal of the conduit and linea which has been found to be substantially equal to the 10 Once this has been accomplished, the lured tobacco average width of'a human lip. The outer diameter of' smoke article holder assembly 2 can be joined to filter conduit 3 adwantageotrsly can be approaimately 16 imm. holder 12 of a tobacco i smoke article testing machine and the internal diameter approxiwnately, 10 mm. Ar- (not disclosed)..The filter holder which can be aay orse ranged to pass through the walllof eondlut 3'intermedi- of several types known in the art, such as a standard ate the inlet end and'outlet end of the conduit is a fluid ts plastic Gelman holder and the testing machine, which pressure rrteans in the form of a pressure tubr4 m fluid also can be any one of several types known in the art,; communication with the interior of the conduit which such as a standardl Phipps ! Birdl Inc. smoke testing advantageously can be of 16 gauge stainless steel tubing, machirx, are not described in detail berein, since the having,an outer diameter of 1.575 mm. and a length of testing machine per se and the filter holderdo rwt eom- 28.6 mm.. the pretsate tube being connected to a suit- 20 prise an i essential part of the present invention and are able controllable fi pressure source such as an i air known in the art. C comprasor and regulator valve (not shown). It is to be To couple holder assembly, 2' to filter Lolder 12.' a noted thu the other peripheral wall surface of conduit novel coupler or collar 13' formed i with a bore tbere- 3 is provided witlt a pair of spaced annular grooves 6 through, which also can be machined from a east' adjacent the inlet end and' outlet end of the eonduit. 25 acrylic rod, can be used. Coupler 13 is interaally sized at' These grooves 6; which can each be of 1.0 mm. radius eai to receive in 1 snug',sealed outer eod of the limed' serve to receive in sealiag , relationship therewith; the conduit 3, the C3.riag 7 at the outlet of the conduit 3 ead' O,ring seals 7 which, in the embodiment disclosed„can serving to enhance the scaling relationship between ` be i inch inner diameter and 1/16 inch cross-section. coupler 13 and! lined conduit 3. Opposite erd' 16 of' Refar:ing to FlG: 2, thin walled;llow-throtrgh liner 8 30 coupler 13 is iaternally sized to eagttge with the emem- is disclosed. Liner I can be made from any one of' a ity of filier holder 12: Ia, the embodiment disclot:md, number of suitable fleatible, idlatable materials known coupler 13 can be approumately 13s6 mm. in kng* in the art and advantageously can be made from a sili- with an outer diameter of 22.2 mm. End 14'ean have a cone rubber shaped in cylindrical eross-section to in- bore dtameter' of 18 mm. and opposite end 16 a bore clitde neck 9'between opptssite ends IL )s diamt:ter of 1.3.9'mm. It has been found desirable that the eltzstic properties Once the novel tobacco smoke article bolder 2;, in- of liner 8 be selected to produce an amount of 'mwcosal duding liner 8; has been assembled i and joioed to ftlter roW or lip drape, behind the tobacco smoking artick holder 12' by coupler 13. the mouth end 17' of tobacco equal to that observed by fiber-optic e:amiaation of smoke arrticle 18, such as acigarette, can be insr:rted into normal smoking. To accomplish this, the tin+dr I should a0 the relaxed liner 8 for testing. The insertion depth ad- have hardness properties in tbrrange of approximatdy, vantageously in 8 mm. (the current FTCstaadard ioser- 15 to 60 Shore A,,advantageously'20'to 30 Shotie A, and tioa kngth). Fluid' pressurr (such as air)" is applied a tensile modulus in the range of approximately 50 to through, pressure tube 4 into the interface between the i approximately 200 pounds pet square inch and ad vanta- interior walt' surface of the cooduit 3 and liaer i to a geously about 80'pounds per square inch. Suitable srli- 4s pressure in the range of 0 Tocr to 130 Torr so that the cone rubber muerials such as thase_made by General liner t'will exert a pressure in thrrange of07otr to 150 Electric Company and designated SE 3218 or SE 8+f5'E Torr on the mouth end 17. Advantageously the Atridd have been found!to be satisfactory: It is turther desirable pressure is approximately 3t'I'orr (one Torr being coo- that the walls of liow,thnough liner I be relatively thin sidered equivalent to I mm: of mrxcury), the 34 Totr so that pressure exerted by the liner I on a tobacco 50 being considered the average human Gp pressure on the article is substantidlyetlual to the pressure exerted on mouth end'of a cigarette, the pressures iodicated'beingg liner 8 through pressure tube 4. [t is also desirable that gauge pressures. the shape and dimensions ofiinear 8 facilitate mounting The aforedescribed thin walled! Oi liner 8 of 12 . without twist and without axial strebcti: In the embodi, tnm.length with an average,pressure thereon of 34 Torr menl disclbsed', flow-through Liner I is 22 mm. in length 51' beso simulates human smoking with concomitant lip with neck pontion 9 being approximuely 12 mm. in pressure and lip drape around the extremity of mouth length equivalent to the length of conduit 3. The neck end 17 of cigarette 18: portion 9 advantageously has a liner thickness:of 0.30 Thw, a,novd,tobaaco smoke article bolder assembly mm. and the opposite eods II! a lina thickness of 0.58 which best simulates human 6p mucosal relation is pro- mm., with the neck portion in relaxed state having a 60 vided. suc6, lMoltler being', oeonomical~ and efficient to diatneter, of 8 mm. This diameter is equivalent to the manufacture and assemble. readily incorporabie into diametenofa conventronalltobaeco smoke arrticle, such standard testing eqµipment acceptable to FTC smokang as alcigarette. to be received in the eylindrical liner s: in procedure. creating a minimum of additional work for this regard. it is to be understood'that the present inven- an operator and - most importsntly - providing: reliable tion is not limited to only conventional cigarettes or 65: ' smoke testing dati other tobacco smoke article of circular crose;section4 , Tbe invention claimed is: but also can be adapted to other tobacco smoke arrtieles: 1. A tobacco smoke armcle holder for use with a such as "slims" and "ovals":, toiaacco article smokc testing,a_.hine capable of'simu-

. 5 4,627;44'$' 6 lating tobacco smoke article filter - human lip mucosrl ship with said coupler connecting said conduit to the relition comprising; a conduit having an iniet and an testing machine. outlet end; fluid pressure means in fluid communication f. The apparatus of claim 1. said flexible Gnen tia ving with the interior of the cooduit; a circumferential thin- hardness properties in the rangeofiapproaimately 15 to . walled flexible liner sized to circumferentially line the 5 60 Shore A and a tensile modulus of'approaimatety'50' inner wap surfreeof said condnit'with the opposite ends to 20!D pounds per square inch. of the liner at the conduit inlet end and outkt end fas- 10. Tbe"apparuus of claim l. ,s.id lkxibkliaer having tened in sealed relatioom with sealing ttteaas w the inlet hardnesa properties in she taoge of appro:imatdy 20 to end and outlet ead of said' condmt;, said conduit with 30 Shote A and a tensile modulus of'appro:imattly g0 said luter having a length of'appronimately 12 am said 10 pounds per square inch. lined conduit having a cross-section when said liner of 1!L The apparatus of claim 1, wherein the circumfer. said conduit is in relaxed state approximate to the eross- ential'tiner is inflated to a pressure of'approzimately 34 section of the tob:cco smoke article to be tested: said Torr: eircumferential flexible liner being inflated by fluid 12. A cigarette article holder for a cigarette smoke passing through said flltid pressure means into the inter- 11 testing, machiae capable of simulfting cigarette filter - face of said circumferential flexible liner andinner wall human Gp mucosal relation comprising a rigid cylindri- surfaee of said cond ua to a pressure in the range oC 0 cal conduit having an inkt end and' an outer end' and a Torr to ISO Torr so that said liner wall eaert a pressure length of approxumately 12 mm; a fltud pressure tube in the range of 0?orr to ISO Torr on a tobacco smoke POMti°ned appro:imately iuteriatediate the in1et and article inserted into the inlet end of said lioed conduit 20 outlet ends of the condttit; a thin walled, flexible cyWt- coaduit resulting in simulating tobacco smoke article - human and drical, silicone overlaying the rubber inaer liner wa1disposed 1 surface wofithia said the 'tigideoa- lip mucosal relatioa; aad the sealing ttseaaa u the outlet duit; said liner having a length of approxitnatdy:22 mm end of srid'liaed conduit also ooruatuting,aconnectiag before assembly. the opposite ends of'tbe linec being means to sealingly connecting the lined.aonduit to a 25 foltled back to overlap the inbt'iad and outlet end of' ' coupler means for coupling, the (iaed conduit to the said conduit. the outer, wall snrfa~oe of said conduit bav_ smoke testing machine. ing a pair of spaced annular grooves adjacxnt the iskt 2. " The apparatus of claim 1. said thin-waUedl flexible li aer eod aaid outlet ead thereo.f;' a pair of flexible 0-rins seats aer comprising a thin silicone rubber ettbe." .' engaging in said'grooves to fasten and aeal said'overlap- 3. The apparatus of clrim 1. said thin-walled liner 30 ping Una, ends between the O-ring seab and outer, wa0 being sufficiently thin that presstue exerted oa a to- surfaa of'said conduit aad to interfrt in sealed'relatioo bacco article inserted into said, lina conduit by the the outlet end of'said lioed conduit with a coupler coa- inflated liner, is sutistantially equal to the fluid pressure necting said lined conduit to tbe smoke testing machine; , betweea said lirxr, and the ituter watl snrfaoe of said the portioa of said cylindrical liner disposed within the conduit 35 conduit having an internal di.meter when iathe relaxed 4. The apparatus of claim l.,said flttid'pressure means state of appr+oximately g mm and being of 0:30 mm wall being positioned i approximately intermediate the mlet thickness to result in a pressure on the smoking article _. end'and'outlet endlof'said litaad coaduit. inserted into the inlet ead of the lined crmadttitsnbstaa- S. The apparatus of claim 1. said'lined conduit having tially eQp.l to the pressure betweeo said liaa aod'said a cross-sectional ar a in relaxed state sized Ito aocotnmo- 40 conduit when the lladr is inflated by fluid entering the date a srartdard cigarette. interface between said fiaer and said! conduit through 6. The apparatus of claim 1. said Uaed conduit having said fluid pressurr tuber a circular cross-sectional area with an internal diameter 13. A method of mounting the mouth end' of a to- when said liner is in the relaxed'state of approximately bacco smoke article into a/len'biy lined fluid inflatablee gUUM. 45 oobaxo smoke artidt conduit for a tobacco article 7. 'i3e apparatus of claim T wherein said means com- smoke testing machine eomprving the steps of ' inserting prises a bore therethrough+ the bore being sized at ooe the mouth end of the tobacco smoke article into the end, to snugly receive in sealed relationship therewith t1w'bly Gned, fluid inflatable coaduit, having,a sealing the outlet end of said lined conduit, and sized at the means for both sealing the liner to the eooduit and the opposite end to anugly engage in soaled relation with a sp conduit to a coupler coupling the conduit to the smoke filter holder of thc tobaceo article testing machine- testing, machine, and inflating, the flexibly linad. fluid I. The apparatus ofclaim l, said flexible liner having inflatable tobacco smoke article coaduit to a pressuree a length before assembly to the,conduit exceeding the whereat thrflesibly lined. fi4id inflatable conduit exerts length of said conduit. ttse sealing mearn comprising on the outer wall surface of said conduit. annular grooves adjacent the inlet and outet ends thereof;,tbe opposite ends of said liaer being folded back to overlap the annu- lan grooves adjacent the ialtt end and outlet end of said conduit: and'the sealing means further comprising a pair, of flexible seals,eogaging in said'grooves to fasten and seal the opposite ends of said liner therebetween to the outer wall sunfice, of'said conduit and to permit the ouWet end of said cooduit to interfit in sealed relytioa- a foreroa the mouth end lof the tobacco smoke article in ss the range of about 0 Torr to 150 Torr throughout test- mg. 14. The method of'elaim 13, comprising the step of inflating the flexibly lioedj Guid inAYt.blt tobacco smoke article,eonduit to a pressure whereat the flexibly 60 lined, fluid inflatable conduit exerts a force on the moutb end of the tobrr.eo smoke article of about 34 Torr. . . . . . 65'