Liquid level control system

• US 7,350,245 B2
• Filed: 02/17/2006
• Issued: 04/01/2008
• Est. Priority Date: 02/17/2006
• Status: Expired due to Fees

• Current Assignee: Vincent Giagni
• Original Assignee: Vincent Giagni
• Inventors: Giagni, Vincent
• Primary Examiner(s): LE, HUYEN D
• Application Number:
  US11/355,723
• Publication Number:
  US 20070192954A1
• Time in Patent Office: 774 Days
• Field of Search: 469/4, 466/8, 462/3, 450/8
• US Class Current: 4/668
• CPC Class Codes: E03C 1/057 touchless, i.e. using sensors
• CPC Class Codes: G05D 9/12 characterised by the use of electric means

Abstract

A liquid level detection and control system having a shut off gate located near the liquid discharge outlet and a liquid level sensor which sends signal to a wireless transmitter when a preset liquid level is detected. The transmitter then transmits signal to an electronic receiver and from there to an electronic circuit which transmit signal to a solenoid operatively associated with the shut off gate to open and close the gate.

Claims

1. A liquid level detection and control system for controlling liquid level in a bathtub having a faucet and a faucet handle, said faucet having an inlet end for the liquid and an outlet end for discharge of the liquid into the bathtub, said system comprising:

(a) a main housing operatively associated with said bathtub;

(b) a sensor housing operatively associated with said main housing;

(c) a hinged plate member disposed near said inlet of said faucet, said hinged plate member capable of being biased to a flat closed position to prevent liquid from flowing through said faucet and to an open angled position to permit liquid to flow through said faucet;

(d) an electronic sensor means in said sensor housing capable of detecting the level of liquid in said bathtub and transmitting electronic signals to an electronic transmitter in said sensor housing when said liquid level reaches a preset level;

(e) an electronic receiver in said main housing for receiving signals from said transmitter and sending electronic signals to an electronic circuit in said main housing; and

(f) a solenoid actuator in said main housing for receiving signal from said electronic circuit and biasing said hinged plate member to a closed position and prevent liquid flow from said faucet to said bathtub when said liquid level reaches said preset level.

2. A liquid level detection and control system as in claim 1 wherein said sensor housing further comprises a liquid flow sensor for detecting flow of liquid through the system.

3. A liquid level detection and control system as in claim 2 wherein said main housing comprises a battery for providing electrical power.

4. A liquid level detection and control system as in claim 3 wherein said hinged plate member includes a seep hole.

5. A liquid level detection and control system as in claim 2 wherein said hinged plate member includes a seep hole.

6. A liquid level detection and control system as in claim 1 wherein said sensor housing comprises a battery for providing electrical power.

7. A liquid level detection and control system as in claim 6 wherein said hinged plate member includes a seep hole.

8. A liquid level detection and control system as in claim 1 wherein said hinged plate member includes a seep hole.