US3838822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve button
Assignee: Individual
•
Filing: 1972-10-30
•
Granted: 1974-10-01
•
Expires: 1992-10-30
Abstract
Abstract A self-cleaning spray button design especially for use on aerosol valves for spraying starch. The discharge passageway within the button comprises an inlet from the valve stem leading into an annular expansion chamber which connected with a swirl chamber just behind the discharge outlet. Additionally, the orifice land of the terminal orifice tapers outwardly thereby restricting the diameter of the spray pattern.
Inventors
- 👤 R Ewald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:51
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/34; B05B1/3405; B05B1/341; B05B1/3421; B05B1/3431; B05B1/3436; B65; B65D; B65D83/00; B65D83/14; B65D83/16; B65D83/162; Y; Y02; Y02W; Y02W90/00; Y02W90/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
A terminal orifice insert for an aerosol button or actuator comprising a terminal orifice body having a rear and forward wall, a recess formed in said forward wall having a base, a substantially cylindrical protrusion formed on said base and extending inwardly into said recess, said insert including a terminal passage comprising an entrance formed in said rear wall and an exit formed in the face of said protrusion, said entrance and said exit interconnected in spaced relation by an outwardly tapered land such that the spray pattern size is a function of the spaced relation and taper between said exit and said entrance.
Claim 2
Dependent Claim
104 words
A terminal orifice insert for an aerosol button or actuator comprising a terminal orifice body having a rear and forward wall, a recess formed in said forward wall having a base, a substantially cylindrical protrusion formed on said base and extending inwardly into said recess, said insert including a terminal passage comprising an entrance formed in said rear wall and an exit formed in the face of said protrusion, said entrance and said exit interconnected in spaced relation by an outwardly tapered land such that the spray pattern size is a function of the spaced relation and taper between said exit and said entrance.
Claim 3
Dependent Claim
93 words
A terminal orifice insert configured for use with a mechanical breakup button or actuator for dispensing product comprising a terminal orifice body including a discharge passage having an entrance and exit orifice interconnected in spaced relation by an outwardly tapered land of less than twenty degrees wherein the spray pattern size is inversely proportional to the taper and length of said land whereby the spray pattern size may be varied to maintain a constant spray rate, said insert including a recess having a substantially cylindrical protrusion formed therein to house said discharge passage.
Claim 4
Dependent Claim
93 words
A terminal orifice insert configured for use with a mechanical breakup button or actuator for dispensing product comprising a terminal orifice body including a discharge passage having an entrance and exit orifice interconnected in spaced relation by an outwardly tapered land of less than twenty degrees wherein the spray pattern size is inversely proportional to the taper and length of said land whereby the spray pattern size may be varied to maintain a constant spray rate, said insert including a recess having a substantially cylindrical protrusion formed therein to house said discharge passage.
References Cited (Backward Citations)
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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) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |