US3627263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerosol valves
Assignee: Consort Medical Ltd
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Filing: 1969-12-15
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Granted: 1971-12-14
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Expires: 1989-12-15
Abstract
Abstract The invention relates to improvements in a known form of aerosol valve having a cup-shaped valve member whose annular, upper edge normally seals against a main seal under spring pressure. The interior of the cup communicates, through radial apertures in the wall of a hollow actuator member, with the interior of the member. The valve is opened by pressing the actuator member downwardly to unseat the valve member. One improvement resides in shaping the interior surface of the valve member to guide the fluid flow radially inwardly towards the radial apertures in the actuator member. These apertures preferably account for at least 50 percent of the circumference of the actuator member. Also, flow velocity is increased by forming a progressively tapering flow passage between the valve member and the housing in which it is located.
Inventors
- 👤 William Edward Warren
- 👤 Frederick James Gallagher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:11
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/44; B65D83/48
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
365 words
An aerosol valve for a pressurized container; comprising a valve housing 1 containing a generally cylindrical valve chamber, said housing including inlet and outlet openings communicating at opposite ends with said chamber, said inlet opening being adapted for connection with a source of pressure fluid; flexible seal means connected with said housing for closing said outlet opening, said seal means containing an opening; a tubular actuator stem slidably mounted in the opening and containing at one end within the valve chamber a plurality of circumferentially spaced axially extending apertures 9 that define in said stem a plurality of axially extending leg portions; a cup-shaped valve member 3 connected with said one end of said actuator stem within said valve chamber, said valve member including a base portion containing an annular groove 11 that receives a frictionally retained engagement the free extremities of said valve stem leg portions, said valve member including also a frustoconical portion that diverges outwardly from said base portion concentrically about said hollow stem and terminates in an annular edge adjacent and parallel with said seal means, said annular edge being concentrically spaced from the cylindrical wall surface of said valve chamber, whereby the outer surface of said valve body cooperates with the cylindrical inner wall surface of said valve chamber to define in the direction from said inlet opening to said outlet opening a convergent flow passage, said apertures being of a length slightly greater than the depth of said groove and slightly less than the distance between the planes containing said annular edge and the free extremity of said one valve stem end, respectively, whereby said valve stem is in constant communication with the interior of said valve member and the extremities of said apertures are located immediately adjacent the plane of said annular edge; and spring means 4 biasing said valve member relative to said housing toward a closed position in which the annular edge of said valve member is in sealed engagement with said seal means to isolate said inlet opening from said outlet opening, said actuator stem being manually movable downwardly against the action of the spring means to unseat said valve member to open said valve.
Claim 2
Dependent Claim
365 words
An aerosol valve for a pressurized container; comprising a valve housing 1 containing a generally cylindrical valve chamber, said housing including inlet and outlet openings communicating at opposite ends with said chamber, said inlet opening being adapted for connection with a source of pressure fluid; flexible seal means connected with said housing for closing said outlet opening, said seal means containing an opening; a tubular actuator stem slidably mounted in the opening and containing at one end within the valve chamber a plurality of circumferentially spaced axially extending apertures 9 that define in said stem a plurality of axially extending leg portions; a cup-shaped valve member 3 connected with said one end of said actuator stem within said valve chamber, said valve member including a base portion containing an annular groove 11 that receives a frictionally retained engagement the free extremities of said valve stem leg portions, said valve member including also a frustoconical portion that diverges outwardly from said base portion concentrically about said hollow stem and terminates in an annular edge adjacent and parallel with said seal means, said annular edge being concentrically spaced from the cylindrical wall surface of said valve chamber, whereby the outer surface of said valve body cooperates with the cylindrical inner wall surface of said valve chamber to define in the direction from said inlet opening to said outlet opening a convergent flow passage, said apertures being of a length slightly greater than the depth of said groove and slightly less than the distance between the planes containing said annular edge and the free extremity of said one valve stem end, respectively, whereby said valve stem is in constant communication with the interior of said valve member and the extremities of said apertures are located immediately adjacent the plane of said annular edge; and spring means 4 biasing said valve member relative to said housing toward a closed position in which the annular edge of said valve member is in sealed engagement with said seal means to isolate said inlet opening from said outlet opening, said actuator stem being manually movable downwardly against the action of the spring means to unseat said valve member to open said valve.
Claim 3
Dependent Claim
39 words
A valve in accordance with claim 1, wherein said actuator stem and said valve member are both made of synthetic plastics material, the resilience of which assists in securing frictional interengagement of said axial legs in the said groove.
Claim 4
Dependent Claim
60 words
The valve in accordance with claim 1 wherein said valve further comprises a mounting cup means 8 for receiving one end of said valve housing, said mounting cup means including an upstanding flange defining a center hole for slidably receiving and guiding said stem whereby said stem is constrained to move parallel to the center axis of said valve housing.
Claim 5
Dependent Claim
31 words
The valve in accordance with claim 1 wherein said valve member includes an interior surface inclined inwardly and downwardly to guide material entering the valve member radially inwardly toward said apertures.
Claim 6
Dependent Claim
82 words
The valve in accordance with claim 1 wherein the portion of said valve housing adjacent said inlet opening including internal axially disposed vanes forming an abutment for the said spring means, said vanes are rectangular in axial elevation and have a diagonal dimension a and a thickness dimension c said inlet opening defining a bore immediately below said vanes, said bore having a diameter dimension b, and wherein said dimensions conform to the following ratios: a/b 0.4 to 1.0c/a 0.04 to 0.44.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |