Tobacco Documents Online

i L 12b~ w~~ ~ 41! t United 5tztes IPatent v9j (11] 4,,256,122 Johnson NSl Mar. la,, 19SI I (3+l acAREMFn,Mx (7S] 1av.mtoc Xbiaf IL Aia.oa; I.osirvQLi4Ly.. (T3j, Aaagu.c:: lrvws & lVml.aw. t.i.ac+o C6rpwades.1.omir*"01c. [y. (2'1j wpQt No.: sns3o' j22J TriLd: Apr.1g, !f'1f (SI] ht C1, A3iD Si/01 (521 US. Cl 1l1/10iA (3SJ i7rid.f Swrecb 111Y10:3. 10.7. 10 A', 131I261 R 2612 ' (i61', 1tdrr+a,ea+e3s.dl us TATEW DoCIUMENL'S 3:77).t1D 11Y1973 Lalbe,et a1. 1a1J10l3 3:91o.]Il 10Y197s liaamet.mM .c a! 1'I1/10! );"1a79 3Y197b a.kc 717y10.! si0231Z1 !/1!!'77 Sherj+v' 171L1o.! I,A['1091 4/19711 Ow= 1J1r10 A l1']l,S21 1/tM Lakaa a1. !D1/1!0.3'. P,irwC7 ~rr--vaoeac sttlhs . Aso.aq.' dCrsK' rrlkar-ciarLr 0- lsmb; a'ulii.m 7 maamo (S7] A1RTIRALT A a1cer for a atareut ioeluEei a poebar lllter rod eir. asmacribed' by a aoa,parvpr or ecrwke fmpervioul wrspper rrbaieie the alta rod .vhb the afla-powaa wTSppcntbCTcaroaad i"prvwtdod with groo,na esrcead. iq frvm ooe e,od thereof* pneaelecsed di:unoc loncou+. dinally ttierealonj. Tipping mu,erial oiecumscriba the .pa-porous vvmppcr aad i provided with f1ow.1hrough openidti tbetmc i flow oammuakaaon vith, the Voova: Tbt grooaa my be otiested to estend to the eoutb tad oft6e (Uter when osruneetsd to . e.i=sneree. to the tobacca, end of tbe filter when ooooecud Ito thee djiLrette. or .oe;conaoctiaY Vroova which estend trcm .rcb I md' of the fdta el®eat a pre.oLaned' d1s- {aaoe t5a etlon=. 9 C3st.r, i'Deawtai !!lprs

U.S. Patent' Mar.17, 1981 4,256,122 FIG. 3 e, ,0- II --~ FIG~, 6

e 1 <,256,122 -2 ieventibn also providas a=roov.d l~ta ~ a aan.por. Q~~~-~ PD:~ om ot ttmoke tmpt:rvtiow plus wrap. Warnous other features of the praent }nvzntion will BAICKif]ROUh1D OF THE tNYEATIION ti.oomaobviow to tbose akiUed !a tbe.ra upos rutlinj, 1. Field of the Invention, I the disclosure aett fortb 6ereiaafter. 7his invention relates to fUters for c3j.rettss. Ia otne More ParbcuLaly- the prtAaat fnvention pronidtu a, arpeat h relates W a rilier witb nowol ventllatiaStaetni Qlter ror'a etiitarette oomprnaia3 a Pr>mm filurr tod of t4lierein. In another tassptsrn the ktvtntion relates to a eyGadrit:al oonfipvrttlon• a son-poroua Wrapper ea- filter cigarette having flow diraetin3 troovas tbersia t.adinj bn=itudutally of and' elineumsuibiag l the ro,dd fordirecsing vttirttilitinY nir,either to the tobacco end of 10' kawiaj, Bowaarouj~li oppatedl azsdt of'the rod. thc the blter or to tbe ttoouth end o( tbe Nter ar a oatosbiaa- wrapper and rod 6a vlai a plurality of '3onritudinally 1?ioe~tliereof:nrtendin3qoovw ebcumferattially, apaced tbere-2: D+ttcription of the Prior Art ttrmuad, the grooves estendinr from at kut one end a It'u well known in the art to add RltsrTr to cigarettes preselected distance therealong; and, tippin f tatiteraal wherein the filtrrn are provided wlth ventillting tsseans ty eatendin j, lon=atudinally of and eucumscribin f the to brinp in ambiertt air into ehe filter to d-tlute the smoke wnpper, the tippingtrsatcrial Includint fiow-throu`ih tttseam. The dilution of tbe amoke stream r.duoa the opeaings therein in flow oommunication with the 4µantityof unoke particulateras well as ju phase oom- grooves- ponenta which arc delivered to the mouth of the It ia to be tatdenstood that the description of'thc ea- anok'er. A eumtier of ineans have been proposed and mampla of, ths present ibvrntion sivem hereinafter are are utilised for introducinS,veatilatiat air lnto the ei=a, ent' by way of' limitation and variotu modifications trette. For tsatnple, tAe wrapper for the tobrceo in a witbie the seape of the present invention will occur to eitarstte ran be made from a porotu esuterial whicb t6o.e akilled In the art trpem veaalittr the disclosure set allows for introduction of air alonS ,tb'e entire length of forth,hereinafter the cigarette wbere h' misa with the amoke atreaat 23 pasting thercthrouih therebydilutia3 the smoke in the BRTEF'DESCRIPTION OF THE DRAWI?vG trueam. Also. the cijarette wrapper may be perforated kfertriist to tbe drawint: at aelectedilocations afoaj the length of the cigarette FliG. 11 is,a perspective view of a preferred filterr which provides ports for t!u cigarette through which element end a son-porous plug , wrap of the present ventilating air entert. Even further, h is kTowe to perfo. 30 • nte the wrapper, of the filter on the filter end of the veatioa' cigarette to allow for ventilating air to enter the filter fl0a 3'is a perspective view of another filter element for dilution of the amoke,strtum: There bave abo been land'ao°`ponous plug wrap of the-presrent invention, a number of'sujgestions for facorporatin&, grooves FIG. 3 i a perspective view of even another pne- within the filter plug for the ei3uettr in order to tacili. 35 ferred filter, elcment and eon-porous plug wrap of the 4te the oddition of veotilating air mto the smoke present invention attacheti to a.dSarettr with tippin3; StrCAm: material shown m an tatwrapped'trondition; For esantple, U:S. Pat. No. 3,396,663 rael.te>; to a FIG. dis ' a penspectivc view of the filter elementt tobacco atnoke filter provided with a txrru=atad porous Incltulirs3,the noo-ponoui plug wrap of'FIG. I attached pluj,wrapswrotatdineaftltereJeatreat,whichis tam-slm. 40 90 a d=ttrt•rte witb tippint tnrtsrial shown in an un- acribe:d by'a dppin3'papa bavin:,fiow.thtourli perdora• wrappe'1 ooodition; tions therein wberebyvtradlatin j,air enters direr:tly mto F1IG. f is a perrpeative v3ew of a Slter element and the filter element or pro3resses down the grooves to the tuoo-porous pluj wrap of F7G. Jisttached to a cigarette smokers mouth. Other patents,which relate to eisarctte wbcrein tlie;roovas of the filter dement,are positioned filters h.vintgroova circumscribing tbe filter tleasrnt 43 for ventilating air to be dircctod towards the tobacco for the introduction of ventilating air'iato the filtering oolumn~ tbe tippin3 mat.eria/~is shown in an unMrrappdd end' of the (flter cigarette include U.S. Pat: No- onodition; and. 3.577,995; U:S. Pat. No:: 3,572.3!17; U.S. Pat., No. F1G. f n a pempective view of another pr=fe.-Ted 3,490.461; , U:S. Pst! Na, 1.71i'.12,2; U.S. Pat. No. flltrr e]ement and amn-porous plut wrap~of the present 3.7a8,330, U:S. Par: No~ 3,7731053; U.S: Pat. No. !o, invention attached to a at.retu with tipping muerial 3,752,165,; U.S. Pat: No. 3.638,661; U.S~ Pat. No. shown man un'"'npPed condition. 3,6D1<.5;61; West German Pat:,No.2,30,2,677; British Pat! DESCRIiFTION OF THE PREFERRE'D, No. 1,41~,14S;,British Ptt: No. 1:3i60;612;,Btitiah Pat. EMBODIMENT No. 1.360,6'111t and• U:S. Pat. No. 3,910.218. the aforte- mentioned Britisb patents brinS directed t,o etmn- 55 In F1G. 11- a Glter plug 3 of the pncsrnt invrntion is wrappcd ace.ute filtrrs. shown. This filter plug ] coomproaes acellWoar aceute OF THE JNYE~777 ~;N' ~~ ~'®ent 10 or any other filtrr made from fbrous or SUMMARY fiwoed materials: for tobacro nmokc which mry be 'The ptesent' fovention advantajaously, provida a kr+ok%at in the art eirc>ffiscnbad bya oon-porous wTap- araight forward anranpemont of e filter for a cigarette 60 per 11. It is rea9ized'Qxat in the ttse,of the trrra "non.por• which in one form achieva oorma1 ci=arette pressure otn wrT.pper^. this includts ttm-porous outer surfs:es drop with bw to maderate effisiency fJters: T3te pncs• of foamed nuurial which arn iate"l with the filter, ant inventionfurnher provides aci6arette filter for low- element u well u noai-porouawrappinQ nuterial Mhich ering un predominarttly byvemtilatton inncad of fihra- fs not'integral with the filter ekment- The filter plu6 2 tion The prrscnt invention even 6urSher prowidcs r 65 ia provided with a plurality of grooves 14 there,n cl- filtor ventilation system for a eiSarette utiliuina,g+roovos tending lonrtudanally therwlont The filtcr pluEs 2.re', inthe filter plug eiteodint frornitippinl pexforations in generally prepared by uthini a asandard filter rod ofi the tipptnx, paper to otx end of the filter: The prescni' eelhuloac aceta!tc or the fikc, wrapping the riod ~J.h. a

i 3 4,256,,122 -- taon-por+om .rr.ppinj tmterial. thm aubJectitts', the Wre. Ih,ateacbin= the fdter plul ertFlCr: d tola citarette vrrapped filter rod to, a aootd or other trnting tateuts air tobacco eiolumn f. the piu1,1 and the oolunm 1 ve deaiped fior, puttinj appropriate 2roovet therein. One enclosed br tippirni taateria7 d6 which lacluda a,row of aocL' method L known as a beat tmniding t.ehniqu¢, ventil.tinr perforations 4i'tliendn.,The perfor.tiont f,1 .vhicb ie we]llkaown M the art S are disposed forfbw-throu h oomm F7G. 2 shows anotlur errad flhet 4 oftbe ~ ~ with the P~ aui iswvdly eztmdia j portiooa o[ the iroovts dia and 44b imtant inveatioa whiah ie octetpri.ad af a aellulo.e aoe» which are m op.ood overfappln j, felatitao. !a ose, the Mu filter edcatent !G areuaacribed by a eoe-porrxn renttryayint air travels into the ttmoker'a toouth throulh frotin u= wrapper 22 witb oee orto!ore groovet 34 eateedin= groova 4Nu .nd itrsvely dow• the 51ter aut 1 linto the one end of the plug whcrcia the poovea 34 are 10 wbaceo oolumn tbrotai,h troovs 40 :otu(taneotuly disposed at an •nt1e,•nottnd the fUter plug 4. A tireum- thvy„ith. Iersatially estendint groove 36 it ahio provided tn ooat- 1t wOl be raaliusd lthat varix» t:han=es ttY•y be made duniute with tbe, gToovea 34 wberein the poo.nat 36 tio the speciltc embcdimeati ahotw and deacribed with, ars generally in tlijnrnent with tippint perfioratiom ai out departint from the principln,of the prexnt inven• •ereinaftier described and shown at FIG. f- ln the 11 tion. tnethod of preparing a Glterplui d. the uarne prttotadurR qhat nclaiined et: n nsilized as mentioned heneinbeforc in d'uctution of the 1. A filter for a dlrrette oornprisinS: preparation of filter plug% in FIG. 1. A porouz fduer rod of cylindhieal'eanGluration; FI~C's: 3 shows a filter plut i'whiah rr comprised of a filter element 30 which may be oellWo.e aeetate, ot any '0 A smoke itnpervitxu wrapper extending bnjitudi - other filter elentent known in the ant; circumscribed by ~Iy along eaid tod from one end thereof and eir - • aoe-porott: wrapper 32' and i a+eluda a plurality of N~ribini ~d rod. 1n.vt j flow~throulh ap. 2roove: 3+in and 348 e:tendin` lon=itudinally 6om each P'~+~ ~t ot aaid nod: a•id wrapperhavsnl,a ~plu+ .nd of,the plug a peselbetad distance tberraloas In the tralicy of kaoptudinaUy estendin= =romvec eireum, tewethod of r •fdtet lu d, the same ~tiafl~ apreted taberearound'etatioddsd into the P eP+~t P t Pto°edurc 23 61ter rod and ehat of the 6 utilized as tnentioned hereiabetore in ~diaeutooa lof the portion wrapper defining preparation of filter pluls in FIGS. l and 2. However:- the Q°O`'~ ~+i°u'1' nmote l~pervious, said in ase of the flter plul d' of FIG. 3, by attaehint the P~v~ baaj open sioded1 ttt •od e:teadinj from filter plug 6 to a eigarette ortobaceo column 7 and then one of said ends a distance 1{m tban the knrh of surrounding the plug by tipping material 7d'tt•hich in- 10 the filter rod; and. cludes a pair of parallel rows ot ventiLttinl perfor>,tions , apPinl material extending longitudinally of and cie- i~1. perforations 31 are disposed for, alignment with~ + cum"bin1 said u'npPer• taid, tipptnl mal grooves 3io and 3r1D: In use; ventiLttingain tnavels into bein1 air pervious and permitting ventilatinl, air tlie tawker't mouth through grooves 346 and'travela flow there throuth into.aid grooves, uid vensilaa down the filter plug 6 into the tobacco column 7 'ls bit'air bein1'the only fluid flowing through sud through grooves 34o ssimultaneously rtherewitlil troove when the filter is taed in oombiaation with In FLG'. 4; a filter plul, 7 ir antached to a tabacco • aiarette durinl normal tQaokrdtnwe column or aiarette 3'al positioned fcr, bbeing 2. The lilter of c4im i 1 in combination with a citr- wrapped by tippinl',paper 16 which includes a plurality mtt. aaid grooves of said fllter being in Bowcomatuni- of periontio+t:11 therein eircumferrtatially wrrotmdinl 40 adm with nid e3Prstte: llJter piul 2 and di:posed i for alignment with the 3• The 6ltn of cla® i 1 in oombinrrioo with, • eitr- 2rooves 14 wherein ventilstinl, air, tadially ®tern the reste, mid grooves of.aid filter bein j in f1mu..oommuni- iroovet 14' throuyh the perforations 1/. As, abown io ossion with a t®oker's mouth.. FLCr: 4, ventilating air enteri through the tipping per,fta d- T'b'e,Ntrr of'elaim I wherRia aa9d tipping taatsrisl rationx 11 traveling dowaithe grooves 14 tutditoward •S' b appllad directly to the surface of'aaid wtapper: the smokers trtouth: 5. The filter of'ckim 1 wherein said tipping is imper, In F1IG: S: tbe filter plul or,F1G. 2 it ahown attaehed viom to ait.,taid tipping material hawinl,.elective perdo- to a tobacco column tx eigtrette 5 wherein the grooves tations therein in aow.communication with aaid 34 are positioned to introduce vents7atint,air, into the Q'crovec ttabacco aoluron S; Tipping paper 27 circumscribes the 50 f. The filter of eleiin 1, said jroovet beinl disposed at filter plug 4 aadlit provided'with perfbratiorut 23 which tm angle around said itltrr todi an in alignment with tbe tarcumfcrentially extending 7. The filter of'r.laim I including . Gircuaiferenriallg•. groove 26 which, in, turn, k,lm flow oommuniation extending groove in flbwl+ammunicatiran with aid with grooves X IoclirudinaIDy tsteadinj, sroover, aaid eirtrumferon. F1G. d shows a filterplul 1 which is comprised of, a ]S tiilly estmdinl groove: beint, in alignment! with wd filter dementi4ID which may be cdlulore ar.etate, or any flow-through openint in said tipping material. other fulter element known in the art, eircumacribed by •: The filtet of claim 1. mid troovKS extending from • wn,porout wrappem 42 and iacludts a plurality of both esds a prc.ek+cted disuane therealbnl, aaid grooves 14a al e>itradinl longitudinally from eaeh woves being eootonnectaDle. N •nd' a prraelected I diutrnar thercrlons. The method. ot i0' P. The tJter of clanm 1. mid emoke impervious wl preparing filter plug 1 iu the same procedure as ntiliard pcr beinl imterrzliwith.aid porous filter rod' O 4o the prrparxtion of 7tlter plu; 2 au discusud heneinbe- 65 ~ G1 O 11+