Float valve for a christmas tree watering system
First Claim
1. A valve for use in a Christmas tree watering system, comprising;
- a housing having an upper portion, a water inlet in said upper portion and a perforated bottom surface;
a lift valve mounted in said housing and having a circular valve seat between said water inlet and said perforated bottom surface;
a valve disc mounted between said water inlet and said valve seat and a valve stem extending from said valve disc through said valve seat; and
means to raise and lower said valve disc in response to a water level in said housing;
said valve seat having a first vertical axis and said water inlet having a second vertical axis and said first and second vertical axes being parallel to each other and spaced apart a distance corresponding substantially to a radius of said valve seat.
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Accused Products
Abstract
The float valve has a water inlet, a perforated bottom surface and a lift valve mounted between the water inlet and the bottom surface. A float and a rocker arm are used to raise and lower the disc of the lift valve in response to a water level inside the housing. The valve seat has a first vertical axis and the water inlet has a second vertical axis and the first and second vertical axes are parallel to each other and are spaced apart a distance corresponding substantially to a radius of the valve seat. In another feature, a stud on the rocker arm interferes with the valve stem when the float is in a down position, for leaning the valve stem away from the axes of the valve seat and of the water inlet.
34 Citations
20 Claims
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1. A valve for use in a Christmas tree watering system, comprising;
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a housing having an upper portion, a water inlet in said upper portion and a perforated bottom surface; a lift valve mounted in said housing and having a circular valve seat between said water inlet and said perforated bottom surface; a valve disc mounted between said water inlet and said valve seat and a valve stem extending from said valve disc through said valve seat; and means to raise and lower said valve disc in response to a water level in said housing; said valve seat having a first vertical axis and said water inlet having a second vertical axis and said first and second vertical axes being parallel to each other and spaced apart a distance corresponding substantially to a radius of said valve seat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A valve for use in a Christmas tree watering system, comprising
a housing having an upper half, a water inlet in said upper half, and a lower half; -
a lift valve having and a circular valve seat between said water inlet and said lower half;
a valve disc mounted between said water inlet and said valve seat and a valve stem extending from said valve disc through said valve seat;means to raise and lower said valve disc in response to a water level in said housing; said valve seat having a first vertical axis and said water inlet having a second vertical axis and said first and second vertical axes being spaced apart and parallel to each other; and means to selectively move said valve disc away from said second vertical axis. - View Dependent Claims (16, 17, 18)
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19. A valve for use in a Christmas tree watering system, comprising
a housing having an upper half, a water inlet in said upper half, and a lower half; -
a lift valve having a circular valve seat between said water inlet and said lower half;
a valve disc mounted between said water inlet and said valve seat and a valve stem extending from said valve disc through said valve seat;means to raise and lower said valve disc in response to a water level in said housing; said valve seat having a first vertical axis and said water inlet having a second vertical axis and said first and second vertical axes being parallel to each other and spaced apart a distance corresponding to a radius of said valve seat; and means to offset said valve disc from said second vertical axis, and away from said first vertical axis. - View Dependent Claims (20)
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Specification