Well pressure tank
DCFirst Claim
Patent Images
1. A bladder pressure tank, including:
- a) a housing having a liquid inlet and outlet, b) the housing having an air chamber and liquid chamber separated by a flexible membrane, c) the air chamber is filled with compressed air and is pneumatically sealed to retain air within the chamber, d) said air chamber connected to a one way air fill valve outside the housing, e) the liquid chamber is filled with liquid, wherein the improvement comprises;
f) a tube having an axis extending through the liquid chamber, g) the tube connected to the liquid inlet outside the housing and the liquid outlet outside the housing, h) the tube inlet connected to a co-axial supply pipe carrying pressurized liquid from a pump and the tube outlet connected to a distribution pipe carrying liquid to a distribution area, i) the tube having a plurality of holes within the liquid chamber, j) the tube sealed to the housing between the inlet and holes, k) the tube sealed to the housing between the outlet and holes, l) a flow reducing valve connected to said liquid inlet, m) the flow reducing valve having a cylindrical outlet and an cylindrical inlet, and n) the valve inlet and the valve outlet co-axial with the tube.
1 Assignment
Litigations
0 Petitions
Accused Products
Abstract
A water system uses a pressure tank of an extremely small size. Said pressure tank is of extremely small diameter and can be a variety of lengths. This pressure tank has an opening at one end for fluid inlet and an opening on the opposite end for fluid outlet. This pressure tank is placed inside the well casing or inside the fluid reservoir to protect it from freezing and vandals as well as hidden from landscaping efforts. The pressure tank utilizes a flexible diaphragm to separate the air chamber from the fluid chamber. Said diaphragm to be open at both ends and tube shaped to allow installation in a small diameter housing to be used inside small diameter well casing.
78 Citations
6 Claims
-
1. A bladder pressure tank, including:
-
a) a housing having a liquid inlet and outlet, b) the housing having an air chamber and liquid chamber separated by a flexible membrane, c) the air chamber is filled with compressed air and is pneumatically sealed to retain air within the chamber, d) said air chamber connected to a one way air fill valve outside the housing, e) the liquid chamber is filled with liquid, wherein the improvement comprises; f) a tube having an axis extending through the liquid chamber, g) the tube connected to the liquid inlet outside the housing and the liquid outlet outside the housing, h) the tube inlet connected to a co-axial supply pipe carrying pressurized liquid from a pump and the tube outlet connected to a distribution pipe carrying liquid to a distribution area, i) the tube having a plurality of holes within the liquid chamber, j) the tube sealed to the housing between the inlet and holes, k) the tube sealed to the housing between the outlet and holes, l) a flow reducing valve connected to said liquid inlet, m) the flow reducing valve having a cylindrical outlet and an cylindrical inlet, and n) the valve inlet and the valve outlet co-axial with the tube.
-
-
2. A bladder pressure tank, including:
-
a) a housing having a liquid inlet and outlet, b) the housing having an air chamber and liquid chamber separated by a flexible membrane, c) the air chamber is filled with compressed air and is pneumatically sealed to retain air within the chamber, d) said air chamber connected to a one way air fill valve outside the housing, e) the liquid chamber is filled with liquid, wherein the improvement comprises; f) a tube having an axis extending through the liquid chamber, g) the tube connected to the liquid inlet outside the housing and the liquid outlet outside the housing, h) the tube inlet connected to a co-axial supply pipe carrying pressurized liquid from a pump and the tube outlet connected to a distribution pipe carrying liquid to a distribution area, i) the tube having a plurality of holes within the liquid chamber, j) the tube sealed to the housing between the inlet and holes, and k) the tube sealed to the housing between the outlet and holes, and l) a means pneumatically connected to the air chamber for measuring the pressure in the air chamber, and a switch means for stopping the pump responsive to measuring a high air pressure above a set amount, and for starting the pump responsive to measuring a low air pressure below a set amount. - View Dependent Claims (3)
l) said pump having a pump inlet connected to a source of liquid, m) said pump pumping no more than 20% of the volume of liquid at the high pressure which activates said switch to stop the pump than the volume of liquid pumped at the low pressure which activates the switch to start the pump.
-
-
4. A method of supplying liquid from a relative low pressure at its source to a distribution system where the liquid has a relative high pressure and a irregular flow rate,
a) pumping the liquid from the source to an intake of a control valve, b) flowing the liquid from an outlet of the control valve to liquid chamber in a pressure tank at all times when the pressure at the intake of the valve is greater than the pressure at the outlet of the valve, c) pressurizing the liquid in the liquid chamber by air pressure in an air chamber in the pressure tank, d) separating the air chamber and liquid chamber by a flexible impermeable membrane, e) flowing the liquid from the liquid chamber when the pressure in the air chamber is greater than the pressure in the distribution system, f) ceasing pumping liquid from the source when the pressure in the air chamber is higher than a pre set high pressure, and g) restarting pumping liquid from the source when the pressure in the air chamber is lower than a preset low pressure, where in the improvement comprises: h) restricting the flow of liquid to a trickle flow from the control valve when pressure approaches the preset high pressure. - View Dependent Claims (5, 6)
Specification