Fluid pressure responsive valve controller

Claim 2

In a pressurized water supply system including a main valve body through which water flow is to be controlled, the combination comprising a. a housing attached to said body, b. valving means projecting from the housing for installation and movement within the body to control water flow in the system the valving means including a stopper receivable in the valve body, and c. control means carried by the housing and responsive to system water pressure to cycle the movement of said valving means at predetermined time intervals, the control means including an actuator piston carried in the housing to receive application of said pressure, d. the stopper and piston being interconnected and have a main valve closing position in which system water pressure applied to the piston urges the piston and stopper to said closing position, and a main valve opening position in which system water pressure applied to the stopper urges the stopper and piston to said opening position, e. the control means including control valving communicating with the piston in the housing and operable to bleed water pressure supplied to the piston at times when the piston is in said main valve opening position, the control valving including a first control valve operable to control the bleed to occur during selected first time intervals, and a second control valve in series communication with the first control valve and operable to control the bleed to occur during predetermined second time intervals within said first time intervals.

Claim 3

In a pressurized water supply system including a main valve body through which water flow is to be controlled, the combination comprising a. a housing attached to said body, b. valving means projecting from the housing for installation and movement within the body to control water flow in the system the valving means including a stopper receivable in the valve body, and c. control means carried by the housing and responsive to system water pressure to cycle the movement of said valving means at predetermined time intervals, the control means including an actuator piston carried in the housing to receive application of said pressure, d. the stopper and piston being interconnected and have a main valve closing position in which system water pressure applied to the piston urges the piston and stopper to said closing position, and a main valve opening position in which system water pressure applied to the stopper urges the stopper and piston to said opening position, e. the control means including control valving communicating with the piston in the housing and operable to bleed water pressure supplied to the piston at times when the piston is in said main valve opening position, the control valving including a first control valve operable to control the bleed to occur during selected first time intervals, and a second control valve in series communication with the first control valve and operable to control the bleed to occur during predetermined second time intervals within said first time intervals.

Claim 4

In a pressurized water supply system including a main valve body through which water flow is to be controlled, the combination comprising a. a housing attached to said body, b. valving means projecting from the housing for installation and movement within the body to control water flow in the system the valving means including a stopper receivable in the valve body, and c. control means carried by the housing and responsive to system water pressure to cycle the movement of said valving means at predetermined time intervals, the control means including an actuator piston carried in the housing to receive application of said pressure, d. the stopper and piston being interconnected and have a main valve closing position in which system water pressure applied to the piston urges the piston and stopper to said closing position, and a main valve opening position in which system water pressure applied to the stopper urges the stopper and piston to said opening position, e. the control means including control valving communicating with the piston in the housing and operable to bleed water pressure supplied to the piston at times when the piston is in said main valve opening position, the control valving including a first control valve operable to control the bleed to occur during selected first time intervals, and a second control valve in series communication with the first control valve and operable to control the bleed to occur during predetermined second time intervals within said first time intervals.

Claim 5

The combination of claim 1 wherein the valving means includes a stem on which the stopper and piston are carried, the stem containing a passage to communicate said pressure from within the valve body to the piston in the housing.

Claim 6

The combination of claim 1 wherein the control means includes control valve actuating structure having a rotary cam and a cam follower, and water pressure energized means to effect rotation of the cam to displace the follower for operating the control valving.

Claim 7

The combination of claim 1 wherein said control means includes water pressure energized spring means operable to transmit force to effect said cycling.

Claim 8

The combination of claim 1 wherein said control means includes control valve actuating structure having a first group of rotary cams and a cam follower operatively engaged with a selected cam of said first group, and a manual selector exposed at the housing exterior and movable to position a selected cam of said first group in operative engagement with said follower, the cams characterized as being unlike.

Claim 9

The combination of claim 5 wherein said structure has a second cam and another cam follower operatively engaged therewith.

Claim 10

The combination of claim 3 wherein said last named means includes a spring, spring energized drive mechanism to rotate the cam, and a water pressure responsive device to effect energization of the spring.

Claim 11

In a pressurized water supply system including a main valve body through which water flow is to be controlled, the combination comprising a. a housing attached to said body, b. valving means projecting from the housing for installation and movement withiN the body to control water flow in the system, the valving means including a stopper receivable in the valve body, and c. control means carried by the housing and responsive to system water pressure to cycle the movement of said valving means at predetermined time intervals, the control means including an actuator piston carried in the housing to receive application of said pressure, d. the stopper and piston being interconnected and have a main valve closing position in which system water pressure applied to the piston urges the piston and stopper to said closing position, and a main valve opening position in which system water pressure applied to the stopper urges the stopper and piston to said opening position, e. the control means including control valving communicating with the piston in the housing and operable to bleed water pressure supplied to the piston at times when the piston is in said main valve opening position, f. the control means also including control valve actuating structure having a rotary cam and a cam follower, and water pressure energized means to effect rotation of the cam to displace the follower for operating the control valving, said last named means including a spring, spring energized drive mechanism to rotate the cam, and a water pressure responsive device to effect energization of the spring, said device including a reciprocable plunger to which water pressure is intermittently transmitted, a coupling including a ratchet movable by the plunger to intermittently wind the spring, and a further valve movable in response to spring force transmission to control water pressure intermittent transmission to the plunger.

Claim 12

In a pressurized water supply system including a main valve body through which water flow is to be controlled, the combination comprising a. a housing attached to said body, b. valving means projecting from the housing for installation and movement withiN the body to control water flow in the system, the valving means including a stopper receivable in the valve body, and c. control means carried by the housing and responsive to system water pressure to cycle the movement of said valving means at predetermined time intervals, the control means including an actuator piston carried in the housing to receive application of said pressure, d. the stopper and piston being interconnected and have a main valve closing position in which system water pressure applied to the piston urges the piston and stopper to said closing position, and a main valve opening position in which system water pressure applied to the stopper urges the stopper and piston to said opening position, e. the control means including control valving communicating with the piston in the housing and operable to bleed water pressure supplied to the piston at times when the piston is in said main valve opening position, f. the control means also including control valve actuating structure having a rotary cam and a cam follower, and water pressure energized means to effect rotation of the cam to displace the follower for operating the control valving, said last named means including a spring, spring energized drive mechanism to rotate the cam, and a water pressure responsive device to effect energization of the spring, said device including a reciprocable plunger to which water pressure is intermittently transmitted, a coupling including a ratchet movable by the plunger to intermittently wind the spring, and a further valve movable in response to spring force transmission to control water pressure intermittent transmission to the plunger.

Claim 13

For use in a pressurized liquid supply system including a main valve body through which fluid flow is to be controlled, the combination comprising a. valving means projecting for installation and movement in the body to control fluid flow in the system, the valving means including a stopper projecting for reception in the means valve body, and b. control means adapted to be mounted on the body and responsive to fluid pressure to cycle the movement of said valving means at predetermined time intervals, the control means including an actuator piston carried to receive application of said pressure, c. the stopper and piston being interconnected and having a main valve closing position in which fluid pressure applied to the piston urges the piston and stopper to said closing position, and a main valve opening position in which fluid pressure applied to the stopper urges the stopper and piston to said opening position, d. the control means including control valving communicating with the piston and operable to bleed fluid pressure supplied to the piston at times when the piston is in said main valve opening position, the control valving including a first control valve operable to control the bleed to occur during selected first time intervals, and a second control valve in series communication with the first control valve and operable to control the bleed to occur during predetermined second time intervals within said first time intervals.

Claim 14

For use in a pressurized liquid supply system including a main valve body through which fluid flow is to be controlled, the combination comprising a. valving means projecting for installation and movement in the body to control fluid flow in the system, the valving means including a stopper projecting for reception in the means valve body, and b. control means adapted to be mounted on the body and responsive to fluid pressure to cycle the movement of said valving means at predetermined time intervals, the control means including an actuator piston carried to receive application of said pressure, c. the stopper and piston being interconnected and having a main valve closing position in which fluid pressure applied to the piston urges the piston and stopper to said closing position, and a main valve opening position in which fluid pressure applied to the stopper urges the stopper and piston to said opening position, d. the control means including control valving communicating with the piston and operable to bleed fluid pressure supplied to the piston at times when the piston is in said main valve opening position, the control valving including a first control valve operable to control the bleed to occur during selected first time intervals, and a second control valve in series communication with the first control valve and operable to control the bleed to occur during predetermined second time intervals within said first time intervals.

Claim 15

The combination of claim 9 wherein the valving means includes a stem on which the stopper and piston are carried, the stem containing a passage to communicate said pressure from within the valve body to the piston.

Claim 16

The combination of claim 9 wherein the control means includes control valve actuating structure having a rotary cam and a cam follower, and fluid pressure energized means to effect rotation of the cam to displace the follower for operating the control valving.

Claim 17

The combination of claim 9 wherein said control means includes fluid pressure energized spring means operable to transmit force to effect said cycling.