US3845888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap-in valve
Assignee: Precision Valve Corp
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Filing: 1971-05-07
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Granted: 1974-11-05
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Expires: 1991-05-07
Abstract
Abstract An aerosol valve assembly incorporates conventional valve parts in a plastic retainer member by means of tabs struck inwardly from the material of the retainer. The assembly of valve and retainer members is forced into an aperture in a modified container end closure. A secure seal to the end closure is established.
Inventors
- 👤 J Focht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:55
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/44; B65D83/48; B65D83/16; B65D83/162; B65D83/38; Y; Y10; Y10S; Y10S285/00; Y10S285/921; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49925; Y10T29/49927
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
162 words
The combination of a metal end closure for a pressurized dispenser container, a valve unit and a plastic retainer for mounting the valve unit, the end closure including a central aperture defined by an axially inwardly projecting flange, the retainer including a cylindrical skirt portion for receiviNg a valve unit, the retainer including a resilient radial flange abutting the exterior surface of the end closure, the cylindrical skirt portion extending through the end closure aperture and including an annular shoulder against which the edge of the end closure flange bears to lock the retainer in place in the aperture, the end closure including a conical inward depression circumscribing the aperture whereby the radial flange of the retainer is deflected into conforming abuttment with said conical depression, the cylindrical skirt portion of the retainer also including a plurality of tabs integral with a lower portion of the skirt and extending inwardly, the free ends of the tabs bearing axially against the valve unit.
Claim 2
Dependent Claim
162 words
The combination of a metal end closure for a pressurized dispenser container, a valve unit and a plastic retainer for mounting the valve unit, the end closure including a central aperture defined by an axially inwardly projecting flange, the retainer including a cylindrical skirt portion for receiviNg a valve unit, the retainer including a resilient radial flange abutting the exterior surface of the end closure, the cylindrical skirt portion extending through the end closure aperture and including an annular shoulder against which the edge of the end closure flange bears to lock the retainer in place in the aperture, the end closure including a conical inward depression circumscribing the aperture whereby the radial flange of the retainer is deflected into conforming abuttment with said conical depression, the cylindrical skirt portion of the retainer also including a plurality of tabs integral with a lower portion of the skirt and extending inwardly, the free ends of the tabs bearing axially against the valve unit.
Claim 3
Dependent Claim
167 words
A valve unit and a plastic valve retainer member assembly for a pressurized container, wherein the valve unit comprises a valve housing, a valve body, a valve spring and a valve gasket and wherein the valve retainer member is provided with a hollow cylindrical skirt portion including an exterior annular shoulder and an exterior annular sealing bead and is also provided with a radial flange, said assembly being adapted for mounting in an end closure for the container provided with a central aperture defined by an axially inwardly projecting flange, such that the annular shoulder bears against the edge of said central aperture, the annular sealing bead bears radially against said inwardly projecting flange, and the radial flange of the retainer member overlies and abuts said end closure, said skirt portion also including a plurality of tabs integral with a lower portion of the skirt and extending inwardly, the free ends of the tabs bearing axially against the valve unit to retain it in the retainer member.
Claim 4
Dependent Claim
167 words
A valve unit and a plastic valve retainer member assembly for a pressurized container, wherein the valve unit comprises a valve housing, a valve body, a valve spring and a valve gasket and wherein the valve retainer member is provided with a hollow cylindrical skirt portion including an exterior annular shoulder and an exterior annular sealing bead and is also provided with a radial flange, said assembly being adapted for mounting in an end closure for the container provided with a central aperture defined by an axially inwardly projecting flange, such that the annular shoulder bears against the edge of said central aperture, the annular sealing bead bears radially against said inwardly projecting flange, and the radial flange of the retainer member overlies and abuts said end closure, said skirt portion also including a plurality of tabs integral with a lower portion of the skirt and extending inwardly, the free ends of the tabs bearing axially against the valve unit to retain it in the retainer member.
Claim 5
Dependent Claim
38 words
A valve unit and valve retainer member assembly according to claim 2, wherein the radial flange of the retainer member is deflected into close engagement with a shallow conical portion of the end closure bounding said central aperture.
Claim 6
Dependent Claim
60 words
A valve unit and valve retainer member assembly according to claim 3, wherein the cylindrical skirt portion terminates in an upper end wall, through which a hollow valve stem portion of the valve body extends, the valve gasket being pressed against the end wall by an adjacent top rim of the valve housing under the axial bearing of said tabs.
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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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |