US3826413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for dispensing fluids
Assignee: Consort Medical Ltd
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Filing: 1972-07-18
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Granted: 1974-07-30
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Expires: 1992-07-18
Abstract
Abstract A device for dispensing fluid from an aerosol container of the kind which meters discrete doses, operable to dispense the dose when suction is applied. The preferred form of the device has a recess to hold the aerosol with the outlet of the aerosol sealingly secured in a cavity, and a resilient element to seal the outlet from the cavity, which opens into an air duct. The resilient element is held against the cavity outlet by a springloaded pivoted arm, and a vane on the arm is located in the air duct, so that suction applied at the outlet of the duct will cause the vane to pivot the arm and release the element. In use, the aerosol is operated to meter a dose, which is held partly in the aerosol outlet and partly in the cavity until suction applied at the outlet of the duct causes the cavity to be opened and the dose dispensed into the duct.
Inventors
- 👤 W Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:51
CPC Classifications
A; A61; A61M; A61M15/00; A61M15/0091; A61M15/0093; A61M15/0096; A61M15/009
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
198 words
An aerosol device comprising a housing in which is located an aerosol container of the type which has a tubular valve stem which is depressable against a spring means and internal valve means which is opened when the valve stem is depressed to deliver a discrete metered dose of fluid through the stem and is closed when the stem is released, said housing having receiving means for said container which makes sealing engagement with said stem of said container, and which resists movement of said stem away from said container, a duct in fluid connection with said receiving means, one end of said duct being open to the atmosphere and the other end thereof being arranged for insertion into the mouth of a user, a second valve means disposed exterior of said tubular valve stem to prevent flow of said metered dose from said stem into said duct after the stem has been depressed, a flow sensor arranged in said duct, and means to release said second valve means to allow said dose to flow into said duct when said flow sensor detects a flow of air in the duct caused by a user inhaling through the duct.
Claim 2
Dependent Claim
198 words
An aerosol device comprising a housing in which is located an aerosol container of the type which has a tubular valve stem which is depressable against a spring means and internal valve means which is opened when the valve stem is depressed to deliver a discrete metered dose of fluid through the stem and is closed when the stem is released, said housing having receiving means for said container which makes sealing engagement with said stem of said container, and which resists movement of said stem away from said container, a duct in fluid connection with said receiving means, one end of said duct being open to the atmosphere and the other end thereof being arranged for insertion into the mouth of a user, a second valve means disposed exterior of said tubular valve stem to prevent flow of said metered dose from said stem into said duct after the stem has been depressed, a flow sensor arranged in said duct, and means to release said second valve means to allow said dose to flow into said duct when said flow sensor detects a flow of air in the duct caused by a user inhaling through the duct.
Claim 3
Dependent Claim
26 words
A device as claimed in claim 1 in which said receiving means comprises a chamber and wherein said dose may be stored partly in said chamber.
Claim 4
Dependent Claim
34 words
A device as claimed in claim 2 in which said second valve means comprises a resilient member urgeable against an aperture in said receiving means which aperture leads to a port in said duct.
Claim 5
Dependent Claim
35 words
A device as claimed in claim 3 including means to urge said second valve means against said aperture just before fluid is ejected into the receiving means, said flow sensor acting to release said means.
Claim 6
Dependent Claim
19 words
A device as claimed in claim 3 in which said second valve means is spring urged against said aperture.
Claim 7
Dependent Claim
23 words
A device as claimed in claim 5, further including means for releasing said second valve means when the device is not in use.
Claim 8
Dependent Claim
21 words
A device as claimed in claim 1 in which said second valve means makes a sealing engagement directly with said stem.
Claim 9
Dependent Claim
42 words
A device as claimed in claim 1 wherein said aerosol container is movably mounted in said housing and wherein movement of said aerosol container to depress said valve stem renders said second valve means inoperative to connect said stem and said duct.
Claim 10
Dependent Claim
20 words
A device as claimed in claim 1 in which said flow sensor comprises a movable vane mounted in said duct.
Claim 11
Dependent Claim
28 words
A device as claimed in claim 9 in which said vane is pivotally mounted and said valve means is arranged on a lever rigidly connected to the vane.
Claim 12
Dependent Claim
41 words
A device as claimed in claim 10 in which said vane pivots about a hinge between said lever and the end of said duct arranged for insertion into the mouth of the user, said hinge being adjacent said second valve means.
Claim 13
Independent Claim
315 words
A device for dispensing fluid from an aerosol container of the kind described comprising: an elongate housing having two parallel longitudinal chambers therein each having an end access opening, the two openings being at opposite ends of the housing respectively; one chamber being arranged to receive through the access opening the aerosol container, spray head first, and having a socket in the end of the chamber opposite the access opening to sealingly receive the spray head, there being in the base of the socket an outlet aperture for fluid; a base plate; an elongate vane mounted on the plate so as to be pivotable on the plate, about an axis parallel to the plate, the plate having at least one inlet aperture therein on one side of the vane and being connected or connectible to the housing with the vane extending into the other chamber to define a duct which passes from the said inlet aperture up the said one side of the vane, over the top of the vane, down the other side of the vane and past the said outlet aperture of thE socket; a lever integral with the vane and carrying a resilient valve member; and a spring urging the vane into a position in which the lever presses the valve member against the said outlet aperture to seal the aperture; the arrangement being such that when an aerosol is inserted into the said one chamber, spray head first, and is then actuated, a dose of fluid from the aerosol is stored partly in the spray head and partly in the socket, and when suction is subsequently applied to the end of the duct remote from the inlet aperture, air flow along the duct moves the vane into a position to release the valve member so that the dose of fluid is released into the air flow through the said outlet aperture.
Claim 14
Independent Claim
315 words
A device for dispensing fluid from an aerosol container of the kind described comprising: an elongate housing having two parallel longitudinal chambers therein each having an end access opening, the two openings being at opposite ends of the housing respectively; one chamber being arranged to receive through the access opening the aerosol container, spray head first, and having a socket in the end of the chamber opposite the access opening to sealingly receive the spray head, there being in the base of the socket an outlet aperture for fluid; a base plate; an elongate vane mounted on the plate so as to be pivotable on the plate, about an axis parallel to the plate, the plate having at least one inlet aperture therein on one side of the vane and being connected or connectible to the housing with the vane extending into the other chamber to define a duct which passes from the said inlet aperture up the said one side of the vane, over the top of the vane, down the other side of the vane and past the said outlet aperture of thE socket; a lever integral with the vane and carrying a resilient valve member; and a spring urging the vane into a position in which the lever presses the valve member against the said outlet aperture to seal the aperture; the arrangement being such that when an aerosol is inserted into the said one chamber, spray head first, and is then actuated, a dose of fluid from the aerosol is stored partly in the spray head and partly in the socket, and when suction is subsequently applied to the end of the duct remote from the inlet aperture, air flow along the duct moves the vane into a position to release the valve member so that the dose of fluid is released into the air flow through the said outlet aperture.
Claim 15
Dependent Claim
65 words
A device as claimed in claim 12 including a dust cap mountable in the housing to close both ends of the duct, the cap having a member arranged to move the lever and vane to the position in which the valve member is released, so that when the device is not in use the pressure on the socket exerted by the valve member is relieved.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |