Patent US4632435A successfully refreshed from Google Patents.
Patent US2198704A successfully refreshed from Google Patents.
US5113855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powder inhaler
Assignee: Individual
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Filing: 1990-02-14
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Granted: 1992-05-19
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Expires: 2010-02-14
Abstract
Abstract A powdered medication inhaler is provided which comprises a body having a hollow chamber of substantial height. Powdered medication is transferred from a hopper by a dosing blade having an amperture therein to a transfer station opening into a chamber. In most embodiments of the invention the transfer station is adjacent the upper portion of the chamber, but in one embodiment it is adjacent the lower portion thereof. When the transfer station is adjacent the upper portion of the chamber it includes a pallet or cup on which powdered medication is dropped or blown from the dosing blade. Gas then carries the medication from the cup or pallet into the chamber for inhalation by a patient. In the embodiment in which the transfer station is adjacent the bottom of the chamber compressed gas blows the powder up into the chamber.
Inventors
- 👤 Michael T. Newhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:10
CPC Classifications
A; A61; A61M; A61M15/00; A61M15/0091; A61M15/0001; A61M15/0013; A61M15/0016; A61M15/0018; A61M15/0065; A61M15/0066; A61M15/0093; A61M15/0098; A61M2202/00; A61M2202/06; A61M2202/062; A61M2202/064; A61M2205/00; A61M2205/07; A61M2205/071; A61M2205/073
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
231 words
A powdered medication inhaler comprising a hollow body having a chamber of substantial height for aerosolizing and settling powdered medication, means for admitting air into said chamber, means for connecting said body and said chamber to a living body for inhalation from said chamber into said living body, a storage hopper in said hollow body for storing powdered medication and having a discharge opening therefrom, a powdered medication discharge station opening into said chamber, transfer means having a medication transfer recess therein, said transfer means being in communication with said medication storage hopper through said discharge opening, said transfer means being movable from a position with said recess communicating with said discharge opening for receiving a predetermined quantity of powdered medication in said recess to a position communicating with said discharge station, said discharge station further comprising a pallet positioned beneath said discharge opening for gravitational passage of powdered medication from said recess to said pallet, said pallet being positioned above said living body connecting means, and means adjacent said pallet operatively connected to a source of gas under pressure for positively passing gas past said discharge station and said pallet in timed relation to delivery of powdered medication to said discharge station to carry powdered medication into said aerosolizing and settling chamber for gravitational settling toward said living body connecting means for inhalation of said medication into said living body.
Claim 2
Dependent Claim
231 words
A powdered medication inhaler comprising a hollow body having a chamber of substantial height for aerosolizing and settling powdered medication, means for admitting air into said chamber, means for connecting said body and said chamber to a living body for inhalation from said chamber into said living body, a storage hopper in said hollow body for storing powdered medication and having a discharge opening therefrom, a powdered medication discharge station opening into said chamber, transfer means having a medication transfer recess therein, said transfer means being in communication with said medication storage hopper through said discharge opening, said transfer means being movable from a position with said recess communicating with said discharge opening for receiving a predetermined quantity of powdered medication in said recess to a position communicating with said discharge station, said discharge station further comprising a pallet positioned beneath said discharge opening for gravitational passage of powdered medication from said recess to said pallet, said pallet being positioned above said living body connecting means, and means adjacent said pallet operatively connected to a source of gas under pressure for positively passing gas past said discharge station and said pallet in timed relation to delivery of powdered medication to said discharge station to carry powdered medication into said aerosolizing and settling chamber for gravitational settling toward said living body connecting means for inhalation of said medication into said living body.
Claim 3
Dependent Claim
24 words
A powdered medication inhaler as set forth in claim 1 and further including manually operable means connected to said transfer means for operation thereof.
Claim 4
Dependent Claim
26 words
A powdered medication inhaler as set forth in claim 1 wherein said transfer means comprises a substantially flat dosing blade movable substantially in its own plane.
Claim 5
Dependent Claim
26 words
A powdered medication inhaler as set forth in claim 2 wherein said transfer means comprises a substantially flat dosing blade movable substantially in its own plane.
Claim 6
Dependent Claim
26 words
A powdered medication inhaler as set forth in claim 1 wherein said discharging station includes a substantially vertical passageway for receiving powdered medication from said recess.
Claim 7
Dependent Claim
55 words
A powdered medication inhaler as set forth in claim 5 and further including support means below said substantially vertical passageway for receipt of powdered medication from said recess, and wherein the means for passing gas past said discharging station includes means for passing gas across said support means to carry powdered medication into said chamber.
Claim 8
Dependent Claim
23 words
A powdered medication inhaler as set forth in claim 6 in which powdered medication passes gravitationally from said recess to said support means.
Claim 9
Dependent Claim
40 words
A powdered medication inhaler as set forth in claim 6 and further including means for passing said gas through said vertical passageway whereby said powdered medication is transferred gravitationally and by gas pressure from said recess to said support means.
Claim 10
Dependent Claim
43 words
A powdered medication inhaler as set forth in claim 5 wherein said transfer means comprises a blade, and the recess therein comprises an opening through said blade, and further including means for directing gas through said blade opening and through said vertical passageway.
Claim 11
Dependent Claim
38 words
A powdered medication inhaler as set forth in claim 9 wherein said discharge station and said vertical passageway are adjacent the upper portion of said chamber with said vertical passageway opening into said chamber adjacent the top thereof.
Claim 12
Dependent Claim
49 words
A powdered medication inhaler as set forth in claim 9 wherein said discharge station and said vertical passageway are disposed adjacent the lower portion of said chamber, and gas carries said powdered medication up through said vertical chamber and said vertical passageway into the lower portion of said chamber.
Claim 13
Dependent Claim
57 words
A powdered medication inhaler as set forth in claim 6 wherein said support means is disposed adjacent the upper portion of said aerosolizing and settling chamber and wherein gas moves past said support means to carry powdered medication into said chamber relatively adjacent the top thereof for aerosolization and settling of the powdered medication in the chamber.
Claim 14
Dependent Claim
26 words
A powdered medication inhaler as set forth in claim 12 wherein the gas passing means includes means for passing the gas horizontally past said support means.
Claim 15
Dependent Claim
46 words
A powdered medication inhaler as set forth in claim 5 wherein said transfer station is disposed adjacent the bottom of said chamber, and wherein the means for passing gas past said discharging station comprises means for passing gas upwardly to carry powdered medication into said chamber.
Claim 16
Dependent Claim
53 words
A powdered medication inhaler as set forth in claim 2 and further including support means disposed below said passageway for receipt of powdered medication from said recess, and wherein manually operating means is interconnected with said gas passing means to provide gas to said discharge station to carry powdered medication into said chamber.
Claim 17
Dependent Claim
18 words
A powdered medication inhaler as set forth in claim 15 wherein the gas passing means includes a piston.
Claim 18
Dependent Claim
21 words
A powdered medication inhaler as set forth in claim 15 wherein the gas passing means includes a cylinder of compressed gas.
Claim 19
Dependent Claim
34 words
A powdered medication inhaler as set forth in claim 5 wherein said gas passing means includes an exhaust passageway for transmitting exhaled air to said discharging station to carry powdered medication into said chamber.
Claim 20
Dependent Claim
33 words
A powdered medication inhaler as set forth in claim 1 wherein said gas passing means includes a piston, and means for cocking and releasing said piston to provide gas to said discharging station.
Claim 21
Dependent Claim
22 words
A powdered medication inhaler as set forth in claim 19, and further including means operated by exhaled air to release said piston.
Claim 22
Dependent Claim
20 words
A powdered medication inhaler as set forth in claim 19 and further including manually operable means for releasing said piston.
Claim 23
Dependent Claim
20 words
A powdered medication inhaler as set forth in claim 20 and further including manually operable means for releasing said piston.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-19 | 1995-11-18 | 1996-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-19 | 1999-11-18 | 2000-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-19 | 2003-11-18 | 2004-05-19 | $7700.00 | Window Closed / Lapsed |