Patent US3908870A successfully refreshed from Google Patents.
US3908870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manual-type miniature atomizer
Assignee: Yoshino Kogyosho Co Ltd
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Filing: 1974-11-13
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Granted: 1975-09-30
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Expires: 1994-11-13
Abstract
Abstract A miniature type, rechargeable atomizing spray mechanism including a receptacle for the liquid to be atomized, and further including a cap and axially aligned first and second pressure chambers, one of which depends within the receptacle while the other projects above the cap. A reciprocable spray head is arranged to cooperate with plural pistons, one each of which are slidably arranged in said first and second pressure chambers. Upper and lower valve members are available to control the emission of spray. The upper valve is maintained closed by a spring element, and the lower valve is opened by reciprocation of the spray head to permit withdrawal of the liquid from the container so that it may pass through a bore provided between the plural pistons and be emitted as a spray from the spray head.
Inventors
- 👤 Takamitsu Nozawa
- 👤 Takao Kishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:46
CPC Classifications
B; B05; B05B; B05B11/00; B05B11/01; B05B11/10; B05B11/1001; B05B11/1016; B05B11/1018; B05B11/1038; B05B11/104; B05B11/1042; B05B11/1061; B05B11/1073; B05B11/1074
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
170 words
A liquid spraying device comprising a container for liquid, including an axially perforated cap, spray means including a nozzle associated with said container and including reciprocable means extending through said cap, first pressure chamber means depending beneath said cap, second pressure chamber means in axial alignment with said first pressure chamber means and positioned above said cap, said reciprocable means including plural piston members arranged for cooperation with said axially aligned pressure chambers and further including first valve means, said valve means being arranged to control liquid flow from said second pressure chamber to the nozzle of said spray means, spring means arranged to maintain said first valve means in a closed condition to prevent inadvertent emission of liquid therefrom, second valve means in said first pressure chamber means, liquid carrying means depending from said last-named means and extending into said container, whereby upon reciprocation of said spray means said liquid is transported from the container through the axially aligned first and second pressure chambers and emitted from said nozzle.
Claim 2
Dependent Claim
170 words
A liquid spraying device comprising a container for liquid, including an axially perforated cap, spray means including a nozzle associated with said container and including reciprocable means extending through said cap, first pressure chamber means depending beneath said cap, second pressure chamber means in axial alignment with said first pressure chamber means and positioned above said cap, said reciprocable means including plural piston members arranged for cooperation with said axially aligned pressure chambers and further including first valve means, said valve means being arranged to control liquid flow from said second pressure chamber to the nozzle of said spray means, spring means arranged to maintain said first valve means in a closed condition to prevent inadvertent emission of liquid therefrom, second valve means in said first pressure chamber means, liquid carrying means depending from said last-named means and extending into said container, whereby upon reciprocation of said spray means said liquid is transported from the container through the axially aligned first and second pressure chambers and emitted from said nozzle.
Claim 3
Dependent Claim
25 words
A liquid spraying device as claimed in claim 1, in which further means are provided for controlling the extent of travel of said reciprocable means.
Claim 4
Dependent Claim
39 words
A liquid spraying device as claimed in claim 1, in which said first pressure chamber means includes a vent means to prevent said liquid container from being excessively evacuated after said spray means is returned to its upper limit.
Claim 5
Dependent Claim
26 words
A liquid spraying device as claimed in claim 1, in which the said first valve means further includes an operative element formed integrally with said cap.
Claim 6
Dependent Claim
25 words
A liquid spraying device as claimed in claim 1, in which the said first valve means further includes an operative element associated with said cap.
Claim 7
Dependent Claim
20 words
A liquid spraying device as claimed in claim 1, in which the said second valve means comprises a ball member.
Claim 8
Dependent Claim
21 words
A liquid spraying device as claimed in claim 1, in which the said reciprocable means further includes an axially extending bore.
Claim 9
Dependent Claim
41 words
A liquid spraying device as claimed in claim 7, in which the said second valve means comprises an elongated member extending axially of said first pressure chamber means and further includes means extending into the said bore in said reciprocable means.
Claim 10
Dependent Claim
31 words
A liquid spraying device as claimed in claim 1, in which the first pressure chamber means further includes relief means for scavenging the boost air from said first pressure chamber means.
Claim 11
Dependent Claim
27 words
A liquid spraying device as claimed in claim 9, in which the said relief means is formed as an undercut annulus in the first pressure chamber means.
Claim 12
Dependent Claim
38 words
A liquid spraying device as claimed in claim 9, in which the said relief means includes further means in said first pressure chamber means for deflecting at least a portion of the said piston member that slides therewithin.
Claim 13
Dependent Claim
29 words
A liquid spraying device as claimed in claim 1, in which the said first pressure chamber means comprises plural elements provided with complemental means forming a leak-proof interlocked joint.
References Cited (Backward Citations)
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US3583605A
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US3640470A
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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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |