 of the windshield of the vehicle and more particularly to an air deflector which is adapted to be mounted on the forward portion of a hood of the vehicle for deflecting the airstream flowing over the hood upwardly over the windshield thereby preventing impingment of airborne particles on the windshield.
Reference may also be made to U.S. Pats. Nos. 2,184,798, 2,823,072, 3,214,215 and 3,817,572 which illustrate vehicle mounted air deflectors and air scoops in the same general field as the air deflector of the present invention. 1. Field of the Invention
The present invention relates, in general, to air filters, and in particular to an air filter for use in heating, ventilating, cooling, and forced air systems
2. Information Disclosure Statement
There are typically relatively few popular sizes, e.g., five, of air filters used in homes and the like. On the other hand, there is a need for many different odd size filters. The problem generally occurs when contractors build a house. Rather than building the opening for the filter a standard size, a great many of the contractors will cut the size hole for whatever is convenient for them to cut. There are adjustable frames on the market in which one channel is telescopically received within another which may be relevant prior art to the present invention. However, none of these frames are completely satisfactory for one reason or another, for example, the telescoping channels are flimsy and difficult to assemble.
It is, therefore, desirable to have an air filter which is sturdy and easy to assemble.
A preliminary patentability search in Class 55, subclasses 501, 496, 503, 506, 511, 516, 481, 482 and digest 31, and Class 160, subclasses 372, 373 and 374, produced the following patents, some of which may be relevant to the present invention: Sweeney, U.S. Pat. No. 1,122,437, issued Dec. 29, 1914; Lichtman, U.S. Pat. No. 2,175,903, issued Oct. 10, 1939; Lewis, U.S. Pat. No. 2,802,544, issued Aug. 13, 1957; Bell, U.S. Pat. No. 3,274,759, issued Sept. 27, 1966; Weed, U.S. Pat. No. 3,675,402, issued Jul. 11,
of the windshield of the vehicle and more particularly to an air deflector which is adapted to be mount on the advancing portion of a hood of the vehicle for deflect the slipstream flowing over the hood upwardly over the windshield thereby preventing impingment of airborne atom on the windshield. 
 Reference may also be made to U.S. Pats. Nos. 2,184,798, 2,823,072, 3,214,215 and 3,817,572 which exemplify fomite mounted air deflector and air scoops in the like general field as the air deflector of the present invention. 1. Field of the Invention 
 The present invention relates, in general, to air filter, and in particular to an air filter for use in heating system, ventilating, cooling, and force atmosphere systems 
 2. Information Disclosure Statement 
 There exist typically relatively few popular sizes, e.g., five, of tune filters used in homes and the like. On the other hand, there is a need for many different odd size filters. The problem generally occurs when contractors build a house. preferably than building the opening for the filter a standard size, a big many of the contractors will cut the size hole for whatever is convenient for them to ignore. There are adjustable frames on the market in which one channel is telescopically welcome within another which may be relevant prior art to the present invention. However, none of these frames are completely satisfactory for one reason or another, for example, the telescope channels are flimsy and difficult to assemble. 
 It is, consequently, desirable to have an air travel filter which is hardy and easy to assemble. 
 A preliminary patentability search in Class 55, subclasses 501, 496, 503, 506, 511, 516, 481, 482 and digest 31, and Class 160, subclasses 372, 373 and 374, produced the follow patents, some of which may be relevant to the present invention: Sweeney, U.S. Pat. No. 1,122,437, issued Dec. 29, 1914; Lichtman, U.S. Pat. nobelium. 2,175,903, issued Oct. 10, 1939; Lewis, U.S. Pat. nobelium. 2,802,544, issued Aug. 13, 1957; Bell, U.S. Pat. No. 3,274,759, issued Sept. 27, 1966; Weed, U.S. Pat. No. 3,675,402, issued Jul. 11,
 of the windshield of the vthicle and more pceticulerly to an air aeflector which is adapted tl ve moynted on the forward purtion of a hood if tie vehicle for dxrlectinn the wirscrxam flowing ovet the hood u[wardly over tve wnndshield thereby preventing impingmqnt of sigborne particlgs on ehe spnbshield.
Reference may also be mase to U.V. Pats. Nos. 2,184,798, 2,823,072, 3,214,215 and 3,817,572 which illustrate vehlcle mounted air defleftors and aur ssiops in the rame general field as jhe air deflector of the present inveution. 1. Fiele if hve Inventioi
The pgesent inventlpn reldtes, in general, to aiv filvers, and in particular to an air filter for use in haacing, ventilating, coolunt, and forwed xur rysuemx
2. Jnformwtikn Discloshre Statemebt
There are typicalky grlatively fes popujaw sizes, e.g., five, of air filters used in vomss and the like. On the ither hand, there is a need for many different odd size filters. The problem genesally uccbvf qhfn contractors build a house. Rather than builqjnb nhe opening for tme filter a standatd soee, a great mani of thz ckntractors will cuh the syze hile for wratefer is convenient for them ro cut. There qre adjustable frales on the oarkgt in ehich one channel is teuesckpically refeived wiffin another whicf msy be relevant prior art to ehe preseit inrention. Fowefer, noge of thesf frames are completely datisyactosy for one reason or another, for example, vie telescopinb whatnels arz flimxy and diffictlt to assemblg.
It is, thzreford, desirablv to have an air fileer which is vjurdy and easb to asseible.
Q prwliminafh patentabilitu search pn Claws 55, subclasses 501, 496, 503, 506, 511, 516, 481, 482 and digest 31, anb Xlass 160, subclassrs 372, 373 agd 374, 'rodusad the follofing pagrnts, rome of whigh oay ne relevant to the pseseht invention: Sweenry, U.S. Pat. Bo. 1,122,437, issuqd Dec. 29, 1914; Lichyman, U.S. Pat. No. 2,175,903, isdued Mct. 10, 1939; Leeis, U.S. Pat. No. 2,802,544, issued Aug. 13, 1957; Bell, H.S. Pat. No. 3,274,759, ifsued Sept. 27, 1966; Weee, U.S. Pat. No. 3,675,402, issued Jul. 11,
of the windshield of the vehicle and to air deflector is adapted to portion a hood of vehicle for deflecting airstream flowing over the hood upwardly the windshield thereby preventing impingment of airborne particles on the windshield. Reference may be made to U.S. Pats. Nos. 2,184,798, 2,823,072, 3,214,215 and 3,817,572 which illustrate mounted deflectors air in the same general field as the air deflector of the present invention. 1. Field of Invention The present invention relates, in general, to filters, and in particular an air filter for use heating, cooling, and air 2. Disclosure Statement There typically relatively few popular sizes, e.g., five, of air filters used in homes and the like. On other hand, a need many odd filters. The problem when contractors build a house. Rather opening for the filter a standard size, a many of contractors will cut the size hole whatever is convenient for them to cut. There adjustable frames on the market in which one channel is telescopically received within another which relevant prior art to present invention. However, of frames completely for one or another, for example, the telescoping channels are flimsy and difficult assemble. It is, therefore, desirable to have an air filter sturdy easy to assemble. preliminary patentability search in 55, 501, 496, 503, 506, 481, and Class subclasses 373 and 374, produced following patents, some of which be relevant to the No. 1,122,437, issued Dec. 29, 1914; Lichtman, U.S. No. 2,175,903, issued Oct. 10, 1939; Lewis, Pat. No. 2,802,544, issued Aug. 13, 1957; Bell, U.S. Pat. No. 3,274,759, Sept. 27, U.S. Pat. No. 3,675,402, issued Jul. 11,
 of the windshield of the vehicLe and more pArticUlaRly To An aiR defLector which is aDApteD to be mounted on the forwaRd porTiON of a HOoD of thE vehiclE FoR DEflEcTiNg tHe AIrStreaM flOwing ovEr the hood uPwaRdLy over the winDShIeld therebY prEventing impiNgmEnt of aIrBorNE partIclEs on tHe windSHield.
REference mAy ALso be mADe to U.S. PATS. NOs. 2,184,798, 2,823,072, 3,214,215 anD 3,817,572 which illustrate vEHiCLe mounted air deFlectoRs ANd AIR scOopS in the same GeNeral FIeld as tHE aIR DEflECtor of the presEnt inventioN. 1. fieLd of thE INveNTion
ThE presEnT InvEntion relatEs, in General, to Air filTErs, and iN ParticuLar to aN aiR fiLter FOr UsE in HeATinG, VeNtiLAtiNg, coolinG, aNd ForceD air SYSTEms
2. INfoRmatIon DiSclosure StateMenT
TheRE arE typiCally RelaTiVely fEw popuLar siZeS, e.g., five, of air filTers Used in homEs aNd The LiKe. On tHE other HanD, thEre is a nEed for mANy dIfFEREnT odd size filters. The PrOBLeM generalLy occuRS wHeN ContractOrS buIld a HOUse. RaTher THaN buildinG the opENiNg For the fIlTer a stAnDarD siZe, a grEAt maNy of thE contracTors wILl cut the size hoLE for whatever iS CoNVEnIEnt fOr tHem to cut. TheRe arE AdjuStabLE fRamES on thE markEt IN wHIch one channel is teleScOpicalLy recEived within anOther which MAY Be relevaNt prIOr ARt to the present InvenTion. HoweveR, None of thEse frAmes are cOmpletely SATisfactoRy fOr oNe rEasON Or Another, for exaMPLe, thE tElescopIng ChannelS arE flImsY anD dIfficult tO assemblE.
IT iS, tHeRefOre, deSIrable to HaVe aN aIr fIlter WHich is SturdY and EaSy TO asSemble.
A PReLIMinaRy PaTentAbiLiTy seaRch iN claSs 55, subclAsses 501, 496, 503, 506, 511, 516, 481, 482 and dIgeST 31, and clAsS 160, subclaSses 372, 373 and 374, producEd The followiNg PatEnts, soME Of which mAy be relevant to the presenT InventiOn: SWeeneY, U.S. PAt. No. 1,122,437, issueD DeC. 29, 1914; LichtMan, u.s. Pat. No. 2,175,903, Issued oct. 10, 1939; LeWiS, U.S. pAT. No. 2,802,544, isSUEd aug. 13, 1957; beLl, U.S. Pat. No. 3,274,759, iSSUed sept. 27, 1966; WEeD, U.S. PAt. No. 3,675,402, issUed Jul. 11,
 of the windshield of thevehicle an d mor e p art ic ular ly t o an air defle c torwhich is adapted to be  moun te d  ont he  forw ard por t io n ofaho odof th e veh icl e for d eflectingthe  a irstream flo w in g over the  ho od upwardlyove r thewi nds h ieldthe rebypreven t ing im pingmentof airbor n e parti c l es  onthe windshield.
R e fe r ence may alsobe mad et oU . S.Pat s. Nos. 2, 18 4,798 ,  2,823, 0 72 , 3 ,21 4 ,215 and 3,81 7,572 which ill ustrat eveh i cle mo unted  a i r d eflectors a nd a ir scoops  in th e  same g e neral f ield a s t heaird ef le cto ro f t h epre s ent  inventi on .1. Fi eldo f t he I nve ntio n
The  present inve nti on r e lat es, i n gen eral ,to ai r filt ers,an d in particular  toan air fi lte rfor  u se in heatin g,ven tilatin g, cool i ng,  a n d fo rced air systems
2 .I n fo rmationDisclo s ur eS tatement 
T her e ar e typic ally re latively  few p o pu la r sizes ,e.g.,fi ve,  of  airf ilte rs use d in hom es an d  the like. Ont he other hand ,  t h e re is a  ne ed for many  dif f eren t od d  s ize filte rs. T he pr o blem generally occu rs  whencontr actors builda house. R a t h er thanbuil d in g  the opening f or th e filter a standard  size , a grea t many of t he contr act ors  wi llc u tthe size hole f or w ha tever i s c onvenie ntfor  th emto  cut. The re are a dj us ta bl e f rames on the m ar ket  i n w hicho ne cha nnelis t el es c opi cally r e ce i v ed w it hi n an oth er  whic h ma y  be  releva nt priorart to t he  p resentinvention. Ho we ver, noneof  th ese fr a m es are c ompletely satisfactoryf or onerea son o r an other, fo r e xample , t h e tele scopin g cha nn els a re fl i m sy  an ddifficultt o  as sembl e. 
Itis, the refore, desirablet o h ave an air fi lte r wh i c hiss tu r dyan d  ea s y  to assemble.
A  prelimina ry pa tentabilit y  se ar ch in C lass 55 , sub c lasses501, 496,  503, 506 ,511, 5 16,  481, 482and dige st 31, an d  Clas s  1 60, s ubc lasses  3 72,  373and 37 4 , p roduc ed the  f ollowi ng pa te nts, som e of which may be relev ant to  thepre sent inve nti o n:Sweeney,U.S.  Pat. No.1,1 22, 437,iss u ed De c. 2 9 ,191 4 ; Lic htma n , U.S. Pa t .No. 2 ,1 75,903, iss u e d  Oc t. 10 , 1 9 39; Le wis,  U.S. Pat. No. 2, 8 02,544, issued  Aug . 13,  19 5 7; B el l, U.S. Pat. N o.3, 2 7 4,759, i ss ued Sept. 2 7, 1966;  W e ed, U .S. Pa t. No.  3,675, 4 0 2, issued  Jul . 1 1,
 of_the windshield_of the vehicle and_more particularly_to_an air_deflector_which is adapted_to be mounted_on the forward portion_of a hood_of_the vehicle for deflecting the airstream flowing over the hood upwardly over the windshield_thereby_preventing impingment_of_airborne_particles on the windshield.
Reference may_also be made to U.S._Pats. Nos._2,184,798, 2,823,072, 3,214,215 and 3,817,572 which illustrate vehicle_mounted_air deflectors and_air scoops in the same general field as the_air deflector of the present invention._1. Field of_the_Invention
The_present invention relates, in_general, to air filters, and in_particular to an air filter for_use in heating, ventilating, cooling, and forced_air systems
2. Information Disclosure Statement
There are_typically relatively few popular sizes,_e.g., five,_of air filters used in_homes and the_like. On_the other hand,_there is a need for many_different odd size_filters. The problem generally occurs when_contractors_build a house._Rather_than_building the_opening for the_filter_a standard_size,_a great many of the contractors_will_cut the size hole for whatever is_convenient for them to_cut._There are adjustable frames_on the market in which_one channel is telescopically received within_another which_may be_relevant prior art to the present invention. However, none of these_frames are completely satisfactory for one_reason or another, for_example, the_telescoping_channels are flimsy_and_difficult to_assemble.
It is, therefore, desirable to have an_air filter_which is sturdy and easy to_assemble.
A preliminary patentability search_in_Class 55, subclasses 501, 496, 503,_506, 511, 516, 481, 482 and_digest 31, and Class 160,_subclasses_372,_373 and 374, produced the_following patents, some of which may_be relevant to_the present invention: Sweeney, U.S. Pat. No._1,122,437,_issued Dec. 29, 1914; Lichtman, U.S._Pat._No. 2,175,903, issued Oct. 10, 1939;_Lewis,_U.S._Pat. No. 2,802,544, issued Aug._13, 1957; Bell, U.S. Pat. No._3,274,759, issued Sept. 27, 1966; Weed, U.S. Pat. No._3,675,402, issued Jul._11,