Pulse sensing feedback control system

• US 6,302,129 B1
• Filed: 06/05/2000
• Issued: 10/16/2001
• Est. Priority Date: 06/05/2000
• Status: Expired due to Fees

• Current Assignee: John S. Van Dewerker
• Original Assignee: John S. Van Dewerker
• Inventors: Van Dewerker, John S.
• Primary Examiner(s): Buiz, Michael Powell
• Assistant Examiner(s): Krishnamurthy, Ramesh
• Application Number:
  US09/586,714
• Time in Patent Office: 498 Days
• Field of Search: 137/7, 137/12, 137/88, 137/624.12, 137/624.14, 700/282, 700/285, 700/301
• US Class Current: 137/12
• CPC Class Codes: G05D 7/03 with auxiliary non-electric power G05D7/005 takes precedence
• CPC Class Codes: Y10T 137/0352 Controlled by pressure
• CPC Class Codes: Y10T 137/0379 By fluid pressure
• CPC Class Codes: Y10T 137/86397 With independent valve controller

Abstract

The present invention provides a feedback control system using at least one operating personnel for controlling a system or a function in a system. The control results from sequential manual interruption by the operator of the fluid flow at the discharge end of a flowing system within a preset time period. As the liquid flow is interrupted, changes in flow characteristics, such as those affecting flow or pressure, for example, are instantly caused within the system. A transducer connected to the system senses these changes in flow characteristic and subsequently transduces them into electrical impulse signals that correspond directly to the sequential interruptions occurring at the discharge end of the system. An electronic circuit counts these electrical impulses, and causes relay switches to change state, causing electromechanical functions in the system to occur. Initiating these functions is the objective and purpose of the operator'"'"'s sequential interrupting of the flow in the system discharge end and the changes are made to be observed by the operator who is a key component of this feedback control system.

Claims

1. In a feedback control system using at least one operating personnel, an apparatus comprising:

a primary conducting means containing a flowing medium;

a valving means manually controllable by an operator, the valving means enabled for operator control of the flowing medium at a dispensing point of the primary conducting means;

a transducing means engaged with the conducting means and enabled for detecting pulses transmitted within the flowing medium by action of the valving means, the transducing means further enabled for producing an output signal corresponding to the pulses in the flowing medium; and

an actuating means enabled for receiving the output signal of the transducing means, and further enabled for producing an operator observable control effect within the flowing medium.

2. The apparatus of claim 1 wherein the control effect within the flowing medium is a change in flow rate of the flowing medium.

3. The apparatus of claim 1 wherein the actuating means is enabled for counting the pulses within a selected time duration.

4. The apparatus of claim 1 further comprising a means for enabling the operator to perceive the control effect.

5. The apparatus of claim 1 further comprising a secondary process independent of the primary conducting means, the secondary process enabled for receiving the operator observable control effect from the actuating means for control of the secondary process.

6. The apparatus of claim 5 further comprising a means for enabling the operator to perceive the control effect in the secondary process.

7. The apparatus of claim 1 wherein the primary conducting means is a pressure system and the flowing medium is a fluid at a pressure above ambient.

8. The apparatus of claim 1 wherein the primary conducting means is a vacuum system and the flowing medium is a fluid reacting to a pressure below ambient.

9. The apparatus of claim 1 wherein the primary conducting means is an electrical conducting system and the flowing medium is an electrical current.

10. A feedback control method using at least one operating personnel, the method comprising the steps of:

a) directing a flowing medium through a primary conducting means;

b) valving the flowing medium through operation of a manual valving means by an operator at a dispensing point of the conducting means;

c) detecting pulses transmitted within the flowing medium by action of the valving means;

d) producing an output signal related to the pulses in the flowing medium;

e) producing a control effect in reaction to the output signal; and

f) producing an operator detectable result of the control effect so as to enable the operator to determine further action.

11. The method of claim 10 wherein the valving produces a throttling effect on the flowing medium.

12. The method of claim 10 further comprising the step of counting the pulses within a selected time duration.

13. The method of claim 10 further comprising the step of enabling the operator to perceive the control effect.

14. The method of claim 10 further comprising the step of producing a reaction in an independent secondary process, the reaction dependent on the control effect.

15. The method of claim 14 further comprising the step of enabling the operator to perceive the control effect in the secondary process.

16. The method of claim 10 further comprising the step of charging the conducting means with a fluid above ambient pressure.

17. The method of claim 10 further comprising the step of charging the conducting means with a fluid below ambient pressure.

18. The method of claim 10 further comprising the step of charging the conducting means with an electrical current.