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Publication numberUS2604094 A
Publication typeGrant
Publication dateJul 22, 1952
Filing dateJun 25, 1949
Priority dateJun 25, 1949
Publication numberUS 2604094 A, US 2604094A, US-A-2604094, US2604094 A, US2604094A
InventorsEmelin Arthur C, Samuel Miller
Original AssigneeSchenley Ind Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Inhaler
US 2604094 A
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Description  (OCR text may contain errors)

y 22, 1952 s. MILLER ETAL 2,604,094

' INHALER Filed June 25, 1949 INVENTORS Samuel Miller 8: Arthur C. Emelin ATTORNEY "inhaler with the contact tube Patented July 22, 1952 v .INHALER 7 Samuel 'Miller, New York, and Arthur C.'Emelin, =Ma1naroneck,-*N."Y., assignors "to Scheflley Industries, iInc. New York, N. ia icorporation int-Delaware .Amilicatio'n une '25, 1949,, 'Serial No. 1013292 15 Claims. (Cl. 1'28-206) 1 v invention relatesto inhalers, and relates "more part cularly to inhalers for use with "powdere'd inhalants.

Various practical difficulties have been encountered in using, in'inhalers, powdered "inhalants, such as'powdered-penicillin for example which has come into wide use asa "medicament for respiratory ailments. Thus, the hygrosco- "piity of the powder causes it to agglomerate, "forming particles which are too'large for eii'ecfive-use; Moreover, 'p'rior dev'icesdid not admit suflicient air into the inhaler, or admitted air into thednh'aler in'sucha manner as to cause a Venturi eilect with the result that the powder 'was'driveninto the comers "of the'inha'ler-recep- "tale which holds the powder supply.

- It isan important object or this invention "to -'p'rov'ide a novel inhaler for powdered inhalants whichwill befree from the 'foregoing'and other disadvantages and which will be simple andin- =expensive inconstructionand 'efiicient in'use.

' nnother obiect of this invention is the provision of an inhaler which is so constructed 'as to permit of "the most effective utilization of the powder;

'Stillanother o'b'jecto'f this invention is the, pro- "vision'an'inhaler of means forshattering'any powder'agglomerates. v Other objects of this invention, together with certain *details of "construction and combinations .of "parts, williappear from the following detailed zdesoription and will be pointed out in the 'appended claims.

, "the accompanying drawing wherein 'a preierredembodiment of'our inventionisshown:

' Fig/1 'is'an explodedview' of the'inhalerof our invention showing the receptaclefor'the powder 'Q .blow*the mouth or nose contact tube,

Fig.1'2 is a top .plan view looking inthe'direc- "tion'otithe arrows onlin'e'z- -2 a 'IFig'fi is a vertical cross-sectional view "of the in position -within thereceritalaand I p Fig; 14.15 a horizontal cross-Sectionalview taken -.alongiline "4-4 of'FigC3;

fIlike reference numerals indicate/like parts 'jthronghout the 'several'y'iews of the drawings.

Referring now to the drawings for a "detailed to 'keep the closuremember, with'which'the 'recepta'cle 5isoriginally'closed,inposition.

Formed in thebaseon the inside of receptacle -5 is 'a substantially hemispherical depression 9 adapted to receive -a charge of the powdered medicament. A shoulder I I is formed circumfer- -entially of the depression-awhich-shoulder-=is provided with slots or passageways 1-2 leading "into said depression at a tangent to the periph- --ery thereof. 'The inner wall of the receptacle *is provided with integral ribs or projections l 3.

Adapted to be received in'recepta'cle 5,"tobe seated on shoulder l-l and-spacedirom-the inner 'wallof said receptacle by vribs I3 is a mouth or "nose contact tube l4 ofsubstantially cylindrical "form. Spacing of the contact tube 'from 'the inner wall of the receptacle 'forms airways to supply air to the said receptacle.

As is shown at '15 the upper end-of said contacttube is-conically shaped to facilitate the-entrance thereofintoa nostril or the mouth and the tip is provided with an opening it. The barrel of contact tube M is provided with an in- "tegral helical'rib l'lythe spiralling of which corresponds with the direction of the air flow which will hereinafter be more fully described.

'The inhaler of our invention may bemadeof any suitable material such as metal. glass: ceramics :or plastics.

In use, a charge of the powdered medicament is placed in-depress'ionQ of receptacle '5. As suction is applied 'at opening ['6 by the mouth or nose of the userpair is drawn in through-th space 18 formed'between'th'e outer surface :of contact'tu'be ll and'in'the inner wall of reduced portion-l of receptacle'li. This air-enters depression '9 through slots [2, thus avoiding any Venturiefiect. 'The airwithsome of the powder entrapped therein passes from the receptacle to and through *thebarrel of the contact time 14. The helical rib in said tfibe, the-"spiralling of which, as stated above, corresponds with the didescription of our invention, the reference 'numeral 5 indicates a receptacle whichis'substantially circularv in cross-section and which is pro- 'vided with proj ections- 6 to supply sta'bility to the "inhaler when set down.

and a reduced :portion 1 outer "surf ace of "the reduced portion is pro- "videdwitn'screw "threads '8 which are employed rectionof the how of the air towardsopening 16,

causes the stream of air'and powder to follow'a tortuous path at a relatively rapid'rate with the 'result that any large particles or agglomerates of powder are broken up or shattered by strikin'g against the several convolutionsof the helical rib H. which convolutions act as'baflies.

It will be appreciated that our novel inhalant "'mayPbe usedeifectivelywith inhalantswhich are not "in powdered form, for example, inhalants in 'th'eformo'f a paste or a solid piece.

The embodiment of our invention shown and describedherein'is to be considered mere'lyas illustrative, as our invention is susceptible to variation, modification and change within the spirit and scope of the appended claims.

We claim:

1. An inhaler of the class described, comprising a receptacle for holding a supply of inhalant, a pluralitytof ribs on the inner wall of said receptacle, a contact tube seated in said receptacle and spaced from the inner wall thereof by said ribs whereby airways are formed, and baflling means on the inside of said contact tube positioned to provide a tortuous path for air drawn through said airways into said contacttube. I

2. An inhaler of the class] described, comprising a receptacle for holding a supply of inhalant, a plurality of ribs on the inner wall of said receptacle, a contact tube seated in said receptacle and spaced from the inner wall thereof by said ribs whereby airways are formed, and a helical rib. on the inside of said contact tube.

I 3. An inhaler of theclass described comprising a receptacle for holding a supply of inhalant, a plurality of ribs on the innerwall of said receptacle, a contact tube seated in said receptacle and spaced from the inner wall thereof by said ribs whereby airways are formed, and a helical rib having a plurality of convolutions on the inside of said contact tube.

4. An inhaler of the class described, comprising a receptacle, a depression in said receptacle for holding a supplyof inhalant, a plurality of ribs on the inner wall of said receptacle, a contact tube seated in said receptacle and spaced from the inner ,Wall thereof by said ribs whereby airways are formed, said receptacle having p assageways joining said airways and said depression, and bafiling means on the inside. of said contact tube. V r

5.. An inhaler of the class described, comprising ,a receptacle, a depression in said receptacle, .for holding a supply of inhaIant a plurality of ribs on the inner wall of-said receptacle, a contact tube seated in said receptacle and spaced from the inner wall thereof by said ribs whereby airways are formed, said receptacle having pas-.

sageways joining said airways and said depression, and a helical rib on the inside of said contactrtube. 7

6. An inhaler of the class described, comprising a receptacle, a depression in said receptacle for holding a supply of inhalant, a plurality of ribs on the inner wall of said receptacle, a con: tact tube seated insaid receptacle and spaced from the inner wall thereof by said ribs whereby airways, are formed, said receptacle having passageways joining said airways and said depression, and a helical rib having a plurality ofconvolutions on the inside'of said contacttube.v

. 7. An inhalerof the lass described, comprising ;a receptacle, a hemispherical depression in,

said. receptacle for h9 1i ga;s upply of inhalant,

, a plurality of ribs onthe inner wall of said receptacle, a contact tube seated in saidreceptacle and spaced from the inner wall thereof by said ribs whereby airways areformed, said receptacle having slots leadingjnto said depression substantially tangentially to the periphery thereof and joining said; airways with said depression,' and bafiling means integral with the inner wall of said contact tube.

8. An inhalerof the class described, coinprising a receptacle, a hemispherical depressionin said receptacle for holding a supply of inhalant, a plurality of ribs on the inner wall of said receptacle, a contact tube seated in said receptacle and contact tube.

' of said' contact tube.

4 spaced from the inner wall thereof by said ribs whereby airways are formed, said receptacle having slots leading into said depression substantially tangentially to the periphery thereof and joining said airways with said depression, and a helical rib integral with the inner wall of said 1 9.. An inhalerof the.;cla'ss described,..*comprising a receptacle, a hemispherical depression in said receptacle for holding a supply of inhalant, a plurality of ribs on the inner wall of said receptacle, a contact tube seated in said receptacle and spaced from the inner wall thereof by said ribs whereby airways are formed, said receptacle having slotsleading into said depression substantially tangentially to the periphery thereof and joining said airways with said depression, and a helical rib having a plurality of convolutionsintegral with the inner wall of said contact tube. 5

10 An inhaler of the class described, comprising a receptacle, a hemispherical depression in said receptacle for holding a supply of inhalant, a shoulder in said receptacle circumferentially of said depression, a plurality of ribs on the'inner wall of said receptacle and above said shoulder, a contact tube seated on said shoulder of said receptacle and spaced from the inner Wallthereof bysaid ribs whereby airways are formed, said shoulder having spaced slots joining said v airways with said depression, and, baiili'ng means on the inside of said contact tube,

, a helical rib on the inside of said contact tube.

12. An inhaler of the class described, comprising a receptacle, ahemispherical depression in said receptacle for holding a supply of inhalant, a shoulder in said receptacle circumferentially of said depression, a pluralityo'f ribs on'the inner wall of said receptacle and above said shoulsaid receptacle and spaced from the innerfwall thereof by said ribs whereby airways'arte formed, said shoulder having spaced slots i'joini'ngfisaid der, a contacttube seated on said shoulder of airways with'said 'dl ressiongandfa helical" rib having a plurality er convolutions, on the inside '13. An inhaler of, th lass described, comprising a receptacle, '2 hemispherical"depressionin said receptacle for holding a supply dfinhalant, a shoulder in said 'rece'ptacl"ciijcurnjferentially of said depression, a plurality of ribs 'on, themher wall of said receptacle -and. -jabfgufz'e's'aidshoulder, a contact tube seated onfsa'id shoulder of said receptacle and spaced from 'thefinn'er' wall thereof by, saidribs whereby airways are f rmed, said shouldeflhatin'gf spaced slotsl le'adingljinto said depression, substantially tangentially tolthe periphery thereof 7 side oi said contact tube; 1

A and joiningsaid airway with said depression, and bafliing means 0 the, in-

1 1 4. An inhaler 6f theljjclass' d escribe pris ing a receptacle] a1 hemispherical?depression ha a tsh l -s l e-salesmen in A said receptacle for" holdin supply, (oil-inferentially of said depression, a plurality of ribs on the inner wall of said receptacle and above said shoulder, a contact tube seated on said shoulder of said receptacle and spaced from the inner wall thereof by said ribs whereby airways are formed, said shoulder having spaced slots leading into said depression substantially tangentially to the periphery thereof and joining said airways with said depression, and a helical rib on the inside of said contact tube.

15. An inhaler of the class described, comprising a receptacle, a hemispherical depression in said receptacle for holding a supply of inhalant, a shoulder in said receptacle circumferentially of said depression, a plurality of ribs on the inner wall of said receptacle and above said shoulder, a contact tube seated on said shoulder of said receptacle and spaced from the inner wall thereof by said ribs whereby airways are formed, said shoulder having spaced slots leading into said depression substantially tangentially to the periphery thereof and joining said airways with said depression, and a'helical rib having a plurality of convolutions on the inside of said contact rib.

SAMUEL MILLER. ARTHUR C. EMELIN.

REFERENCES C ITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Germany Dec. 14, 1932

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US724680 *Jun 14, 1902Apr 7, 1903Alonzo DowInhaler.
US1799909 *Apr 19, 1929Apr 7, 1931Kepich RobertTobacco pipe
US2191015 *Aug 6, 1937Feb 20, 1940Scovill Manufacturing CoNasal inhaler
US2310681 *Mar 4, 1942Feb 9, 1943Victor Metal Products CorpInhaler
AT45100B * Title not available
DE566109C *Mar 29, 1930Dec 14, 1932Jacob SchmitzInhalator
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3255750 *Dec 13, 1963Jun 14, 1966Gilbert SchwartzmanInhaler
US4907583 *Dec 16, 1988Mar 13, 1990Aktiebolaget DracoDevice in powder inhalators
US5161524 *Aug 2, 1991Nov 10, 1992Glaxo Inc.Dosage inhalator with air flow velocity regulating means
US5388572 *Oct 26, 1993Feb 14, 1995Tenax Corporation (A Connecticut Corp.)Dry powder medicament inhalator having an inhalation-activated piston to aerosolize dose and deliver same
US5388573 *Dec 2, 1993Feb 14, 1995Tenax CorporationDry powder inhalator medicament carrier
US5460173 *Mar 25, 1994Oct 24, 1995Tenax CorporationDry powder inhaler medicament carrier
US5871010 *Jun 10, 1996Feb 16, 1999Sarnoff CorporationInhaler apparatus with modified surfaces for enhanced release of dry powders
US6095136 *Mar 13, 1998Aug 1, 2000Astra AktiebolagInhalation device
US6240918Feb 20, 1997Jun 5, 2001Schering CorporationPowdered medication inhaler
US7284553Dec 4, 2003Oct 23, 2007Boehringer Ingelheim Pharma Gmbh & Co. KgPowder inhaler comprising a chamber for a capsule for taking up a non-returnable capsule being filled with an active ingredient
EP0237507A1 *Feb 20, 1987Sep 16, 1987Aktiebolaget DracoDevice in powder inhalators
WO1999013930A1 *Sep 17, 1998Mar 25, 1999Gregor John Mclennan AndersonIntranasal administration device
WO1999033505A1 *Dec 23, 1997Jul 8, 1999Euro Celtique SaParticle separator for an inhaler
WO2004052435A1 *Dec 3, 2003Jun 24, 2004Boehringer Ingelheim PharmaPowder inhaler with a capsule chamber for receiving a disposable capsule filled with an active substance
WO2007007110A1 *Jul 13, 2006Jan 18, 2007Cipla LtdInhaler device
Classifications
U.S. Classification128/203.15
International ClassificationA61M11/00, A61M15/00
Cooperative ClassificationA61M2202/064, A61M2011/002, A61M15/0028
European ClassificationA61M15/00C