US3696827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for automatic plant watering
Assignee: Individual
•
Filing: 1969-12-08
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Granted: 1972-10-10
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Expires: 1989-12-08
Abstract
Abstract A device for automatic plant watering has a fluid control valve. The valve is actuated by a pump which is controlled by a multiway cock. The multi-way cock is connected to a scale carrying two vessels on a scale beam. Water is drained from the first vessel when a second scale connected to this vessel is not subjected to the pressure of water flowing into the vessel. Water from the first vessel flows to the second vessel from which it is drained by a heat-sensitive device.
Inventors
- 👤 Heinrich Sterlich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:42
CPC Classifications
A; A01; A01G; A01G27/00; A01G27/003; Y; Y10; Y10T; Y10T137/00; Y10T137/1842; Y10T137/1866; Y10T137/1939; Y10T137/1963; Y10T137/7287; Y10T137/7339; Y10T137/7355; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86413
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
200 words
Device for automatic plant watering, having a valve incorporated in a pressure water piping leading to a watering system for controlling fluid flow to said system as a function of a multi-way cock controlled by weighing scales, means to supply a restricted fluid flow to said scales during intervals of fluid flow in said system, said scales characterized in that a vessel (9) is provided at one side of a scale beam and an adjustable balance weight (10b) is fixed to the other side of said scale beam, said vessel being positioned to receive said restricted fluid flow and thereby actuate said cock as a function of the liquid level in said vessel, a second scale being positioned on said vessel (9) having on one side of a second beam a bowl (7a) fixed thereto and a drain valve (8) actuated by movement of said second scale beam to control a drain opening in the bottom of said vessel, an adjustable weight (7b) being arranged at the opposite end of said second beam, said bowl receiving at least a portion of the restricted fluid flow to actuate said drain valve as a function of the liquid level in said bowl.
Claim 2
Dependent Claim
200 words
Device for automatic plant watering, having a valve incorporated in a pressure water piping leading to a watering system for controlling fluid flow to said system as a function of a multi-way cock controlled by weighing scales, means to supply a restricted fluid flow to said scales during intervals of fluid flow in said system, said scales characterized in that a vessel (9) is provided at one side of a scale beam and an adjustable balance weight (10b) is fixed to the other side of said scale beam, said vessel being positioned to receive said restricted fluid flow and thereby actuate said cock as a function of the liquid level in said vessel, a second scale being positioned on said vessel (9) having on one side of a second beam a bowl (7a) fixed thereto and a drain valve (8) actuated by movement of said second scale beam to control a drain opening in the bottom of said vessel, an adjustable weight (7b) being arranged at the opposite end of said second beam, said bowl receiving at least a portion of the restricted fluid flow to actuate said drain valve as a function of the liquid level in said bowl.
Claim 3
Dependent Claim
66 words
Device as claimed in claim 1 characterized in that an additional vessel (11) is positioned at the vessel supporting side of the first scale beam for movement therewith and disposed to receive fluid drained from said first vessel (9), said additional vessel having a drain valve controlling an opening in the bottom of same which valve is controlled by a tube spring (13) sensitive to heat.
Claim 4
Dependent Claim
21 words
Device as claimed in claim 2 characterized in that means is provided for adjustment of the travel of said tube spring.
Claim 5
Dependent Claim
35 words
Device as claimed in claim 2 characterized in that liquid is fed via multi-way cock (3) to a pump (4) for controlling the valve incorporated in the pressure water piping leading to a watering system.
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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |