Pressure sensitive control for pump regulator

Claim 2

In a water pumping system including an electric motor driven pump coupled to an underground water reservoir by way of conduit means and to an uphold storage means for storing water and having a pressure regulator for completing an electrical circuit to the pump motor from an electrical energy source for operating the pump motor when the water pressure falls below a predetermined low pressure level and for disconnecting the electrical circuit for stopping the pump motor when the water pressure rises above a predetermined upper pressure level, the combination therewith of: pressure switch means electrically coupled between the source and the pump motor and in electrical series with said pressure regulator and sensitive to the water pressure of the system for disconnecting the electrical circuit from the energy source to the motor in the event that the water pressure falls to a predetermined lower pressure level below said low pressure level of the pressure regulator.

Claim 3

The pressure switch means of claim 1, comprising: a housing having inlet means adapted to be in fluid communication with the fluid pressure of the water system; two electrical contacts having electrical leads coupled theretO and adapted to be connected between the source and the pump motor, and pressure sensitive means located within said housing and sensitive to the fluid pressure within said inlet means for normally completing an electrical circuit between said contacts and for disconnecting the electrical circuit between said contacts when the water pressure falls to a predetermined lower pressure level below said low pressure level of the pressure regulator.

Claim 4

The pressure switch means of claim 2 wherein said pressure sensitive means comprises: rod means having electrical conductive means at one end for movement in first and second directions toward and away from said contacts for engaging and disengaging said contacts, movable control means exposed to the fluid pressure within said inlet means for normally maintaining said conductive means in conductive engagement with said contacts when the water pressure is above said predetermined lower pressure level of said switch means, and biasing means for biasing said rod means in said second direction to move said electrical conductive means away from said contacts when the water pressure falls below said predetermined lower pressure level.

Claim 5

The pressure switch means of claim 3 wherein: said inlet means includes a cylinder adapted to be in fluid communication with the fluid pressure of the water system, and said control means comprises a piston coupled to said rod means and slidable in said cylinder.

Claim 6

The pressure switch means of claim 3 wherein said control means comprises a diaphragm adapted to be exposed to the fluid pressure in said inlet means.

Claim 7

A pressure switch to be coupled to a water pumping system having a source of electrical energy and a pressure regulator the latter of which is adapted to electrically complete a circuit from the source to an electric pump motor in the event the water pressure falls below a predetermined low pressure level and to disconnect the electrical circuit when the water pressure rises above a predetermined upper pressure level, comprising: a housing having inlet means adapted to be in fluid communication with the fluid pressure of the water system, two electrical contacts having electrical leads coupled thereto and adapted to be connected between the source and the pump motor, pressure sensitive means located within said housing and sensitive to the fluid pressure within said inlet means for normally completing an electrical circuit between said contacts when said pressure switch is coupled to the water system and for disconnecting the electrical circuit between said contacts when the water pressure falls to a predetermined lower pressure level below said low pressure level of the pressure regulator and, manually controlled electrical switch means connected in parallel with said electrical contacts for providing an electrical flow path by-passing said electrical contacts upon closure of said manually controlled electrical switch means to allow the pump motor to be started and operated when little or no water pressure is present in the system.

Claim 8

A pressure switch to be coupled to a water pumping system having a source of electrical energy and a pressure regulator the latter of which is adapted to electrically complete a circuit from the source to an electric pump motor in the event the water pressure falls below a predetermined low pressure level and to disconnect the electrical circuit when the water pressure rises above a predetermined upper pressure level, comprising: a housing having inlet means adapted to be in fluid communication with the fluid pressure of the water system, two electrical contacts having electrical leads coupled thereto and adapted to be connected between the source and the pump motor, pressure sensitive means located within said housing and sensitive to the fluid pressure within said inlet means for normally completing an electrical circuit between said contacts when said pressure switch is coupled to the water system and for disconnecting the electrical circuit between said contacts when the water pressure falls to a predetermined lower pressure level below said low pressure level of the pressure regulator and, manually controlled electrical switch means connected in parallel with said electrical contacts for providing an electrical flow path by-passing said electrical contacts upon closure of said manually controlled electrical switch means to allow the pump motor to be started and operated when little or no water pressure is present in the system.

Claim 9

The pressure switch of claim 6 wherein said pressure sensitive means comprises: rod means having electrical conductive means at one end for movement in first and second directions toward and away from said contacts for engaging and disengaging said contacts, movable control means exposed to the fluid pressure within said inlet means for normally maintaining said conductive means in conductive engagement with said contacts when said pressure switch is coupled to the water system and when the water pressure is above said predetermined lower pressure level, and biasing means for biasing said rod means in said second direction to move said electrical conductive means away from said contacts when the water pressure falls below said predetermined lower pressure level.

Claim 10

The pressure switch of claim 7 wherein: said inlet means includes a cylinder adapted to be in fluid communicatiOn with the fluid pressure of the water system, and said control means comprises a piston coupled to said rod means and slidable in said cylinder.

Claim 11

The pressure switch of claim 7 wherein said control means comprises a diaphragm adapted to be exposed to the fluid pressure in said inlet means.

Claim 12

A combination of claim 2 comprising: manually controlled electrical switch means connected in parallel with said electrical contacts for providing an electrical flow path by-passing said electrical contacts upon closure of said manually controlled electrical switch means to allow the pump motor to be started and operated when little or no water pressure is present in the system.

Claim 13

A water pumping system comprising: an electric motor driven pump coupled to an underground water reservoir by way of conduit means and to an uphole storage means for storing water, a pressure regulator for completing an electrical circuit to the pump motor from an electrical energy source for operating the pump motor when the water pressure falls below a predetermined low pressure level and for disconnecting the electrical circuit for stopping the pump motor when the water pressure rises above a predetermined upper pressure level, pressure switch means electrically coupled between the source and the pump motor and sensitive to the water pressure of the system for disconnecting the electrical circuit from the energy source to the motor in the event that the water pressure falls to a predetermined lower pressure level below said low pressure level of said pressure regulator, and electrical switch means connected in parallel with said pressure switch means for providing an electrical flow path by-passing said pressure switch means upon closure of said electrical switch means to allow the pump motor to be started and operated when little or no water pressure is present in the system.

Claim 14

A water pumping system comprising: an electric motor driven pump coupled to an underground water reservoir by way of conduit means and to an uphole storage means for storing water, a pressure regulator for completing an electrical circuit to the pump motor from an electrical energy source for operating the pump motor when the water pressure falls below a predetermined low pressure level and for disconnecting the electrical circuit for stopping the pump motor when the water pressure rises above a predetermined upper pressure level, pressure switch means electrically coupled between the source and the pump motor and sensitive to the water pressure of the system for disconnecting the electrical circuit from the energy source to the motor in the event that the water pressure falls to a predetermined lower pressure level below said low pressure level of said pressure regulator, and electrical switch means connected in parallel with said pressure switch means for providing an electrical flow path by-passing said pressure switch means upon closure of said electrical switch means to allow the pump motor to be started and operated when little or no water pressure is present in the system.