Canadian Patents Database / Patent 2810380 Summary

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(12) Patent: (11) CA 2810380
(54) English Title: SYSTEM AND METHOD FOR PREVENTING TANKER TRUCK OVERFILL
(54) French Title: SYSTEME ET PROCEDE DE PREVENTION DE TROP-PLEIN DE CAMION-CITERNE
(51) International Patent Classification (IPC):
  • B60P 3/22 (2006.01)
  • G01F 23/00 (2006.01)
(72) Inventors (Country):
  • DOBSON, GLYN (Canada)
  • JONES, MATTHEW P (Canada)
(73) Owners (Country):
  • GERVEE GROUP OF COMPANIES INC. (Canada)
(71) Applicants (Country):
  • ADVANCED SPILL PROTECTION SYSTEM INC. (Canada)
(74) Agent: SARKIS, MARCELO K.
(45) Issued: 2015-08-18
(22) Filed Date: 2013-03-21
(41) Open to Public Inspection: 2014-09-21
Examination requested: 2014-01-24
(30) Availability of licence: N/A
(30) Language of filing: English

English Abstract

A system and method for preventing overfill of a tank, particularly a tank on a tanker truck wherein the fluid transfer is driven by a pump and entry of fluid into the tank is regulated by at least one control valve. The system and method provide for monitoring of a fluid level within the tank and direct shutdown of the pump and closure of the at least one control valve in response to the fluid reaching a predetermined level.


French Abstract

Un système et un procédé de prévention de trop-plein dun réservoir, plus particulièrement sur un réservoir sur un camion-citerne dans lequel le transfert de fluide se fait à laide dune pompe et lentrée dun fluide dans le réservoir est régulée par au moins une vanne de commande. Le système et le procédé procurent une surveillance dun niveau de liquide dans le réservoir et un arrêt direct de la pompe et la fermeture dau moins la vanne de commande en réponse au fluide qui atteint un niveau prédéterminé.


Note: Claims are shown in the official language in which they were submitted.

What is claimed is:
1. A control system for preventing overfill of a tanker truck, the tanker
truck having a tank for
containment of a fluid cargo, at least one control valve for regulating a flow
of fluid into the tank, a level
sensor for detecting a level of fluid within the tank, and a fluid transfer
pump for transferring the fluid
cargo into the tank through a fluid transfer member, said control system
comprising:
(a) a sensor to detect when the level of fluid in the tank has reached a
predetermined level;
(b) a control module to shut down the pump in response to the level of fluid
in the tank reaching the
predetermined level, and
(c) a control device to close the at least one control valve in response to
the level of fluid in the tank
reaching a predetermined level,
wherein the control device is configured to delay closing the at least one
control valve until a pressure in
the fluid transfer member subsides to a level that will not cause a spill of
fluid from the fluid transfer
member once the at least one control valve is closed
2. The control system of claim 1, wherein the tanker truck comprises a
parking brake and the
control system is arranged to automatically activate in response to
application of the parking brake.
3. The system of claim 1 or 2, further comprising an emergency stop,
wherein activation of the
emergency stop causes the pump to shut down irrespective of the level of fluid
in the tank.
4. The system of any one of claims Ito 3, further comprising a system
override, wherein activation
of the system override prevents the control system from shutting down the pump
or closing the at least
one control valve, irrespective of the level of fluid in the tank.
The system of any one of claims 1 to 4, further comprising a communication
device for relaying a
system status to a communication system.
6. The system of any one of claims 1 to 5, wherein the control module is
arranged to shut down
the pump by shutting down the truck's engine, thereby cutting power to the
pump.
7. The system of any one of claims 1 to 6, further comprising at least one
indicator to indicate a
system status.
8. The system of claim 7, wherein the at least one indicator is a visual
indicator or an audible
indicator.
9. An automated method for preventing overfill of a tanker truck, the
tanker truck having a tank
for containment of a fluid cargo, at least one control valve for regulating a
flow of fluid into the tank,
and a fluid transfer pump for transferring the fluid cargo into the tank
through a fluid transfer member,
said method comprising:
(a) determining a level of fluid within the tank;
(b) shutting down the pump once the fluid has reached a predetermined level;
and
(c) closing the at least one control valve after the pump has been shut down,

wherein there is a period of time between the steps of shutting down the pump
and closing the at least
one control valve, said period of time being sufficient to allow a pressure in
the fluid transfer member to
subside to a level that will not cause a spill of fluid from the fluid
transfer member once the at least one
control valve is closed.
10. The method of claim 9, wherein the pump is powered by the engine of the
truck and the step of
shutting down the pump is accomplished by shutting down the engine of the
truck.
11. The method of claim 9 or 10, wherein the predetermined level is higher
than the legal fill limit
for the tank and lower than the full volume of the tank.
11


A single figure which represents the drawing illustrating the invention.

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Admin Status

Title Date
(22) Filed 2013-03-21
Examination Requested 2014-01-24
(41) Open to Public Inspection 2014-09-21
(45) Issued 2015-08-18

Maintenance Fee

Description Date Amount
Last Payment 2017-02-22 $50.00
Next Payment if small entity fee 2018-03-21 $100.00
Next Payment if standard fee 2018-03-21 $200.00

Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following

  • the reinstatement fee set out in Item 7 of Schedule II of the Patent Rules;
  • the late payment fee set out in Item 22.1 of Schedule II of the Patent Rules; or
  • the additional fee for late payment set out in Items 31 and 32 of Schedule II of the Patent Rules.

Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Filing $200.00 2013-03-21
Request for Examination $400.00 2014-01-24
Registration of Documents $100.00 2014-10-27
Registration of Documents $100.00 2015-02-27
Maintenance Fee - Application - New Act 2 2015-03-23 $50.00 2015-03-13
Final $150.00 2015-06-03
Maintenance Fee - Patent - New Act 3 2016-03-21 $50.00 2016-01-18
Maintenance Fee - Patent - New Act 4 2017-03-21 $50.00 2017-02-22

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Document
Description
Date
(yyyy-mm-dd)
Number of pages Size of Image (KB)
Abstract 2013-03-21 1 9
Description 2013-03-21 9 521
Claims 2013-03-21 3 143
Drawings 2013-03-21 6 95
Representative Drawing 2014-05-09 1 12
Claims 2014-08-21 2 61
Cover Page 2014-09-29 1 38
Claims 2014-12-10 2 57
Representative Drawing 2015-07-22 1 15
Cover Page 2015-07-22 1 40
Correspondence 2014-11-24 2 70
Prosecution-Amendment 2014-09-24 2 105
Correspondence 2014-11-14 2 61
Correspondence 2013-12-11 3 87
Correspondence 2013-12-17 1 12
Correspondence 2013-12-17 1 16
Prosecution-Amendment 2014-01-24 3 92
Correspondence 2014-03-11 11 324
Correspondence 2014-04-08 1 16
Correspondence 2014-04-08 1 18
Prosecution-Amendment 2014-05-01 2 64
Prosecution-Amendment 2014-05-09 1 21
Prosecution-Amendment 2014-05-23 3 15
Prosecution-Amendment 2014-08-21 5 132
Correspondence 2014-10-27 4 127
Correspondence 2015-01-30 1 21
Fees 2015-03-13 1 33
Prosecution-Amendment 2015-03-04 16 530
Prosecution-Amendment 2014-12-10 9 283
Prosecution-Amendment 2015-05-06 1 23
Correspondence 2015-06-03 2 71
Fees 2016-01-18 1 33
Correspondence 2016-09-16 5 306
Correspondence 2016-10-07 1 20
Fees 2017-02-22 1 33