US3596800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for automatically and periodically spraying pressurized fluid
Assignee: Individual
•
Filing: 1969-02-06
•
Granted: 1971-08-03
•
Expires: 1989-02-06
Abstract
Abstract A spraying device comprising a movable, heat-responsive element whose dimension changes with change in temperature and is movable to actuate a valve for sealing a passage through which a pressurized fluid is sprayed from a container into the atmosphere. The element is cooled by gasification of the fluid and warmed by the atmosphere. Thereby, the device automatically and periodically sprays the fluid.
Inventors
- 👤 Taisho Iketani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:21
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/16; B65D83/26; B65D83/265
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
217 words
A device connectable to a source of pressurized fluid for automatically and periodically spraying the pressurized fluid into the atmosphere comprising: means defining a valve chamber connectable to a source of pressurized fluid during use of the device; means defining an expansion chamber vented to the atmosphere disposed downstream from said valve chamber; means defining a restricted passageway providing fluid communication between said valve chamber and said expansion chamber; a jet nozzle in fluid communication with said restricted passageway for spraying a portion of the pressurized fluid flowing through said restricted passageway into the atmosphere; valve means disposed within said valve chamber for opening and closing fluid communication between said valve chamber and said restricted passageway; movable, heat-responsive means mounted within said expansion chamber moveable to a first position when the prevailing temperature within said expansion chamber rises above a preselected temperature to effect opening of said valve means and movable to a second position whenever the prevailing temperature within said expansion chamber falls a predetermined amount below said preselected temperature to effect closing of said valve means; and heat-insulating means disposed within said expansion chamber cooperative with said movable, heat-responsive means for delaying the opening of said valve means by absorbing heat from the atmosphere which would otherwise be directly applied to said movable, heat-responsive means.
Claim 2
Independent Claim
217 words
A device connectable to a source of pressurized fluid for automatically and periodically spraying the pressurized fluid into the atmosphere comprising: means defining a valve chamber connectable to a source of pressurized fluid during use of the device; means defining an expansion chamber vented to the atmosphere disposed downstream from said valve chamber; means defining a restricted passageway providing fluid communication between said valve chamber and said expansion chamber; a jet nozzle in fluid communication with said restricted passageway for spraying a portion of the pressurized fluid flowing through said restricted passageway into the atmosphere; valve means disposed within said valve chamber for opening and closing fluid communication between said valve chamber and said restricted passageway; movable, heat-responsive means mounted within said expansion chamber moveable to a first position when the prevailing temperature within said expansion chamber rises above a preselected temperature to effect opening of said valve means and movable to a second position whenever the prevailing temperature within said expansion chamber falls a predetermined amount below said preselected temperature to effect closing of said valve means; and heat-insulating means disposed within said expansion chamber cooperative with said movable, heat-responsive means for delaying the opening of said valve means by absorbing heat from the atmosphere which would otherwise be directly applied to said movable, heat-responsive means.
Claim 3
Dependent Claim
15 words
A device according to claim 1, wherein said heat-insulating means comprises a permeable spongy material.
Claim 4
Dependent Claim
42 words
A device according to claim 1, wherein said expansion chamber is provided with at least three supporting members disposed in circumferentially spaced-apart relationship on the periphery thereof; and wherein said movable, heat-responsive means comprises a disc-shaped bimetal connected to said supporting members.
Claim 5
Dependent Claim
91 words
In a device for automatically and periodically spraying a pressurized fluid comprising valve means for opening and closing communication between a source of pressurized fluid and a jet nozzle for spraying said pressurized fluid into the atmosphere; movable, heat-responsive means for automatically and periodically actuating said valve means in accordance with the surrounding temperature; and means defining an expansion chamber connected to said source and containing said movable, heat-responsive means therewithin, an improvement for controlling the actuation of said movable, heat-responsive means comprising permeable heat-insulating means disposed within said expansion chamber.
Claim 6
Dependent Claim
91 words
In a device for automatically and periodically spraying a pressurized fluid comprising valve means for opening and closing communication between a source of pressurized fluid and a jet nozzle for spraying said pressurized fluid into the atmosphere; movable, heat-responsive means for automatically and periodically actuating said valve means in accordance with the surrounding temperature; and means defining an expansion chamber connected to said source and containing said movable, heat-responsive means therewithin, an improvement for controlling the actuation of said movable, heat-responsive means comprising permeable heat-insulating means disposed within said expansion chamber.
Claim 7
Dependent Claim
16 words
An improvement as claimed in claim 4, wherein said permeable heat-insulating means comprises a spongy body.
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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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |