Patent US3570770A successfully refreshed from Google Patents.
US3570770A
Expired / Lapsed
US
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Valve button
Assignee: Seaquist Perfect Dispensing LLC
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Filing: 1968-05-08
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Granted: 1971-03-16
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Expires: 1988-05-08
Abstract
Abstract A self-cleaning spray button designed especially for use on aerosol valves for spraying starch. The discharge passageway within the button comprises inlet from the valve stem leading into an annular expansion chamber which connects with a swirl chamber just behind the discharge outlet.
Inventors
- 👤 Ronald F Ewald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:37
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/16; B65D83/162; B05; B05B; B05B1/00; B05B1/34; B05B1/3405; B05B1/341; B05B1/3421; B05B1/3431; B05B1/3436; Y; Y02; Y02W; Y02W90/00; Y02W90/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
62 words
An aerosol spray device for attachment to the exposed stem of an aerosol valve comprising a device body, a cylindrical recess in the base of said body, an inlet passage, said passage leading to an annular helical, expansion channel around a knob, said channel opening and leading into a swirl chamber, said chamber being just behind and communicating with the terminal orifice.
Claim 2
Dependent Claim
62 words
An aerosol spray device for attachment to the exposed stem of an aerosol valve comprising a device body, a cylindrical recess in the base of said body, an inlet passage, said passage leading to an annular helical, expansion channel around a knob, said channel opening and leading into a swirl chamber, said chamber being just behind and communicating with the terminal orifice.
Claim 3
Dependent Claim
14 words
The aerosol spray device of claim 1 wherein said device comprises a valve button.
Claim 4
Dependent Claim
13 words
The aerosol spray device of claim 1 wherein said device comprises an actuator.
Claim 5
Dependent Claim
21 words
The aerosol spray device of claim 1 wherein said swirl chamber is forwardly of said knob and is circular in shape.
Claim 6
Dependent Claim
19 words
The aerosol spray device of claim 1 wherein said swirl chamber is a tangentially fed chamber within said knob.
Claim 7
Dependent Claim
22 words
The aerosol spray device of claim 1 wherein said terminal orifice is an insert and said insert is of inverted cup shape.
Claim 8
Dependent Claim
27 words
The aerosol spray device of claim 6 wherein said swirl chamber is a tangentially fed chamber on the back of said insert axial to said terminal orifice.
Claim 9
Dependent Claim
33 words
The aerosol spray device of claim 1 wherein said device is capable of being attached to a vertical valve stem with a side emitting orifice therein, said orifice acting as said inlet passage.
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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |