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US 4,930,252 AGranted
Christmas tree waterer
OwnerVernon E. Krause, Timothy J. Davisinventors
Life of this patent
Estimating the term…
Abstract
An apparatus is provided for supplying water to a conventional tree stand. A water level monitor is selectively positioned within the reservoir of the tree stand and is electrically connected to a solenoid valve so that water will be supplied from a water reservoir to the tree stand when the water level within the tree stand drops to a predetermined level. A float within the monitor drops with the water level, triggering a reed switch and activating the solenoid valve so that water can flow from a reservoir to the tree stand.
Claims7
In combination:
- a tree stand having a water reservoir;
- an upstanding water supply support means having upper and lower ends;
- a water container positioned on the upper end of said support means and having a horizontally disposed bottom wall positioned above the lower end of the support means, and an upstanding side wall means, said bottom wall having an opening formed therein;
- a normally closed electrically operated water valve means positioned below said bottom wall and having an inlet side in operative fluid communication with said opening;
- a water level monitor positioned within said reservoir;
- an electrical control means operatively connected between said water level monitor and said water valve means, for opening said water valve means when the water in said reservoir drops to a first predetermined level;
- said electrical control means adapted to open said water valve means when the water in said reservoir drops to a predetermined level and to close said water valve means when the water in said reservoir raises to a second predetermined level.
4 more elements
In combination:
- a tree stand having a water reservoir;
- an upstanding water supply support means having upper and lower ends;
- a water container positioned on the upper end of said support means and having a horizontally disposed bottom wall positioned above the lower end of the support means, and an upstanding side wall means, said bottom wall having an opening formed therein;
- a normally closed electrically operated water valve means positioned below said bottom wall and having an inlet side in operative fluid communication with said opening;
- a water level monitor positioned within said reservoir;
- an electrical control means operatively connected between said water level monitor and said water valve means, for opening said water valve means when the water in said reservoir drops to a first predetermined level;
- said control means adapted to open said water valve means when the water in said reservoir drops to a predetermined level, and including means for closing said water valve means after a predetermined time period.
4 more elements
Dependencies are inferred from the claim text.