Tank monitor control device

• US 9,632,513 B2
• Filed: 02/24/2015
• Issued: 04/25/2017
• Est. Priority Date: 03/13/2014
• Status: Active Grant

• Current Assignee: Husky Corporation
• Original Assignee: Husky Corporation
• Inventors: Wiersma, Roger
• Primary Examiner(s): McManmon, Mary
• Assistant Examiner(s): DO, HAILEY KYUNG AE
• Application Number:
  US14/544,834
• Publication Number:
  US 20150261227A1
• Time in Patent Office: 791 Days
• Field of Search: 137386, 137389, 137390, 137392, 137395
• CPC Class Codes: G01F 23/74 for sensing changes in level only at discrete points
• CPC Class Codes: G05D 9/00 Level control, e.g. controlling quantity of material stored in vessel
• CPC Class Codes: G05D 9/12 characterised by the use of electric means
• CPC Class Codes: Y10T 137/7287 Liquid level responsive or maintaining systems

Abstract

A tank monitor control device is disclosed which comprises a monitoring device for insertion into a day tank to monitor a level of fluid stored in the day tank, a shutoff valve connected between a main storage tank and a diaphragm pump, a solenoid valve connected between an air supply and the diaphragm pump, and a control device connected to the monitoring device for receiving a signal indicative of the level of fluid in the day tank, the control device connected to the shutoff valve and the solenoid valve.

Claims

1. A tank monitor control device for use with a day tank that is supplied with waste oil pumped from a main storage tank, during its usage, and for application to fuel a generator or heater, comprising:

a main storage tank;

a day tank, capable of receiving waste oil through a conduit from the main storage tank;

a monitoring device for insertion into said day tank to monitor a low level of waste oil stored in the day tank to produce a low level signal upon said monitoring device, a high level of fluid stored in the day tank to produce a high level signal upon said monitoring device, and a over flow level of fluids stored in the day tank to produce an overflow level signal upon said monitoring device;

a shutoff valve connected between said main storage tank and a diaphragm pump;

a solenoid valve connected between an air supply and the diaphragm pump;

a control device connected to the monitoring device for receiving a signal indicative of the level of fluid in the said day tank, the control device connected to the shutoff valve and the solenoid valve, said control device for receiving the low level signal, the high level signal, and the over flow level signal, and the said control device connected for controlling the operations of the shutoff valve and the solenoid valve;

said control device comprising a housing having a front face, the housing including a control board having a terminal block for electrically connecting the control device to the shutoff valve and the solenoid valve;

said control device front face plate having an on off toggle switch, a manual fill push button, a test push button, an overflow indicator, a pump indicator, a level within range indicator, a power indicator, and an audible alarm;

said monitoring device comprises a tube and three reed switches disposed along the tube, said reed switches comprising a low reed switch, a high level reed switch, and an overflow level reed switch, all for detecting the various levels of the waste oil pumped to the day tank; and

said control device connected to the solenoid valve controls the delivery of the air supply to the diaphragm pump to achieve pumping of the waste oil to the day tank, and said control device operating said shutoff valve for shutting off the further flow of waste oil to the day tank from the main storage tank when the overflow level signal indicates that the day tank is filled to capacity with waste oil.

2. The tank monitor control device of claim 1 wherein the control device provides power to the solenoid valve.