US3893597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low delivery rate valve
Assignee: Individual
•
Filing: 1973-08-20
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Granted: 1975-07-08
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Expires: 1993-08-20
Abstract
Abstract A low delivery rate aerosol valve including a valve body comprising an enlarged upper portion having a valve body cavity formed therein and an elongated lower portion having a plurality of expansion chambers therein which are interconnected in series by a plurality of restricted interconnecting channels that lead to the valve body cavity. The valve further includes an elongated dip tube fitted over the elongated lower portion of the valve body which are disposed relative to one another so that the plurality of expansion chambers may be formed on the outer surface of the elongated portion and in the inner wall of the elongated dip tube tail such that product flows through the series of expansion and restrictive channels to the valve body cavity and valve stem discharge orifice and thence dispensed through the terminal orifice.
Inventors
- 👤 Ronald F Ewald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:17
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/44; B65D83/48; B65D83/16; B65D83/162
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
207 words
A low delivery rate aerosol valve for use in combination with an aerosol dispenser comprising a valve body including an enlarged upper portion and a lower portion connected to said upper portion, said enlarged upper portion including a valve body cavity formed on the interior of said valve body, restricted feed passage means formed in said lower portion in fluid communication with said valve body cavity, a valve stem movably mounted within said valve body cavity to open and close the valve, said restricted feed passage means comprising a plurality of expansion chambers and a plurality of restricted channels, said plurality of expansion chambers disposed in substantially successive relation to one another, each two successively disposed expansion chambers interconnected by at least one of said plurality of restricted channels, said successively arranged plurality of expansion chambers and plurality of restricted channels disposed in predetermined flow reversing relation to one another so as to substantially reverse the main fluid flow through said restricted feed passage means, said restricted feed passage means disposed in fluid communicating relation between said valve body cavity and the interior of the dispenser, whereby upon actuation of the valve the contents of the dispenser pass through said restricted feed passage means to the atmosphere.
Claim 2
Dependent Claim
207 words
A low delivery rate aerosol valve for use in combination with an aerosol dispenser comprising a valve body including an enlarged upper portion and a lower portion connected to said upper portion, said enlarged upper portion including a valve body cavity formed on the interior of said valve body, restricted feed passage means formed in said lower portion in fluid communication with said valve body cavity, a valve stem movably mounted within said valve body cavity to open and close the valve, said restricted feed passage means comprising a plurality of expansion chambers and a plurality of restricted channels, said plurality of expansion chambers disposed in substantially successive relation to one another, each two successively disposed expansion chambers interconnected by at least one of said plurality of restricted channels, said successively arranged plurality of expansion chambers and plurality of restricted channels disposed in predetermined flow reversing relation to one another so as to substantially reverse the main fluid flow through said restricted feed passage means, said restricted feed passage means disposed in fluid communicating relation between said valve body cavity and the interior of the dispenser, whereby upon actuation of the valve the contents of the dispenser pass through said restricted feed passage means to the atmosphere.
Claim 3
Dependent Claim
49 words
A low delivery rate aerosol valve as in claim 1 wherein said plurality of expansion chambers and said plurality of restricted channels include a first predetermined number of expansion chambers and restricted channels arranged in interconnected, fluid communicating relation to one another and disposed in a substantially planar configuration.
Claim 4
Dependent Claim
62 words
A low delivery rate aerosol valve as in claim 2 wherein said restricted feed passage means comprises a second plurality of expansion chambers and restricted channels arranged in interconnected relation to one another and disposed into a substantially planar configuration in spaced, substantially parallel relation to the planar configuration defined by said first predetermined number of expansion chambers and interconnected restricted channels.
Claim 5
Dependent Claim
60 words
A low delivery rate aerosol valve as in claim 1 wherein said plurality of expansion chambers and said plurality of restricted feed channels comprise a substantially circuitous configuration such that fluid flow through said plurality of expansion chambers and restricted feed channels encounters a directional change of at least 90* as the fluid passes through the restricted feed passage means.
Claim 6
Dependent Claim
52 words
The low delivery rate aerosol valve of claim 1 wherein said restricted feed passage means includes a second plurality of expansion chambers disposed between said first plurality of expansion chambers and the interior of the aerosol dispenser, each said expansion chamber of said second plurality being disposed in substantially the same plane.
Claim 7
Dependent Claim
28 words
The low delivery rate aerosol valve of claim 5 wherein said common plane of said first plurality is substantially parallel to said common plane of said second plurality.
Claim 8
Dependent Claim
55 words
The low delivery rate aerosol valve of claim 1 wherein said valve body further includes a dip tube attached to said elongated lower portion of said valve body, each said expansion chamber cooperatively formed by a recess formed on the side wall of said elongated lower portion and the inner surface of said dip tube.
Claim 9
Dependent Claim
29 words
The low delivery rate aerosol valve of claim 7 wherein each said expansion chamber comprises an elongated recess formed longitudinally on said side wall of said elongated lower portion.
Claim 10
Dependent Claim
45 words
The low delivery rate aerosol valve of claim 7 wherein each said expansion chamber comprises a diagonally disposed recess, each said expansion chamber interconnected to the next adjacent said expansion chamber by one of said restricted feed channels formed transversely through said elongated lower member.
Claim 11
Dependent Claim
20 words
The low delivery rate aerosol valve of claim 9 wherein each said expansion chamber comprises an oval shaped cross-sectional area.
Claim 12
Dependent Claim
19 words
The low delivery rate aerosol valve of claim 9 wherein each said expansion chamber comprises a V-shaped cross-sectional area.
Claim 13
Dependent Claim
27 words
The low delivery rate aerosol valve of claim 7 wherein each said expansion chamber and said corresponding restricted feed channel are angularly inclined relative to each Other.
Claim 14
Dependent Claim
21 words
The low delivery rate aerosol valve of claim 1 wherein the diameter of each of said plurality of channels is different.
Claim 15
Dependent Claim
19 words
The low delivery rate aerosol valve of claim 1 wherein each of said adjacent channels comprises a different diameter.
References Cited (Backward Citations)
US3341082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |