Canadian Patents Database / Patent 2876467 Summary
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|(12) Patent:||(11) CA 2876467|
|(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):||
|(72) Inventors (Country):||
|(73) Owners (Country):||
|(71) Applicants (Country):||
|(74) Agent:||SARKIS, MARCELO K.|
|(22) Filed Date:||2013-03-21|
|(41) Open to Public Inspection:||2014-09-21|
|(30) Availability of licence:||N/A|
|(30) Language of filing:||English|
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.
Système et procédé de prévention de trop-plein dun réservoir. Linvention concerne plus particulièrement un réservoir sur un camion-citerne dans lequel le transfert de fluide se fait à laide dune pompe et lentrée de fluide dans le réservoir est régulée par au moins une vanne de commande. Le système et le procédé permettent une surveillance dun niveau de liquide dans le réservoir, un arrêt direct de la pompe et la fermeture dau moins la vanne de commande en réponse au fluide qui atteint un niveau prédéterminé.
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 into the tank, a
level sensor for detecting a level of fluid within the tank, an engine control
unit for regulating the
operation of the engine of the truck, and a fluid transfer pump powered by the
control system comprising:
a controller arranged to receive a tank-full signal from the level sensor in
response to the level of
fluid in the tank reaching a predetermined level, said controller arranged to
send a shutdown-
engine signal to the engine control unit in response to the tank-full signal,
thereby causing the
engine to shut down; wherein the controller is further arranged to receive an
from the engine control unit once the engine has been shut down and to send a
to the at least one control valve in response to the engine-off signal.
2. The system of claim 1, wherein the controller is configured to delay
sending the close
valve signal for a predetermined period of time after receiving the engine-off
signal from the
engine control unit.
3. The system of claim 2, wherein the fluid is transferred into the tank a
member and the predetermined period of time is sufficient to allow the
pressure within the fluid
transfer member to subside to a level sufficiently low to ensure that closing
the control valve will
not cause a spill of fluid from the fluid transfer member.
4. The system of any one of claims 1 to 3, wherein the tanker truck
comprises a parking
brake and the control system comprises a switch that closes in response to
engagement of the
parking brake and opens in response to release of the parking brake, said
switch activating the
system when in the closed position and deactivating the system when in the
5. The system of any one of claims 1 to 4, further comprising an emergency
mechanism, wherein activation of the emergency stop mechanism causes the
system to send the
shut-down signal to the engine control unit irrespective of the level of fluid
in the tank.
6. The system of any one of claims 1 to 5 further comprising a system
preventing 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.
7. The system of claim 6, wherein the system override is manually
8. The system of claim 6 or 7, further comprising at least one override
indicator to indicate
when the system override is active.
9. The system of claim 8, wherein the override indicator is an audible
10. The system of any one of claims 1 to 9, further comprising at least one
11. The system of claim 10, wherein the at least one system status
indicator is a visual
indicator or an audible indicator.
12. The system of any one of claims 1 to 11, further comprising a
communication device for
relaying a system status to a communication system.
13. The system of any one of claims 10 to 12, wherein the system status is
system fired, or system override.
14. The system of any one of claims 1 to 13 wherein the controller
comprises a main control
modulate and an engine control module, wherein the main control module is
arranged to receive
the tank-full signal and to send the tank-full signal to the engine control
module, the engine
control module is arranged to relay the tank-full signal to the engine control
unit and to receive
the engine-off signal from the engine control unit, the engine control module
is arranged to relay
the engine-off signal to the main control module, and the main control module
is arranged to
send the close-valve signal to the at least one control valve.
15. The system of claim 14, wherein the main control module is electronically
joined to a first
electrical connector and the engine control module is electrically joined to a
connector, said first and second electrical connectors arranged to couple
electrically connecting the main control module and the engine control module.
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|(41) Open to Public Inspection||2014-09-21|
|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.
|Fee Type||Anniversary Year||Due Date||Amount Paid||Paid Date|
|Request for Examination||$400.00||2014-12-10|
|Registration of Documents||$100.00||2014-12-10|
|Maintenance Fee - Application - New Act||2||2015-03-23||$50.00||2014-12-10|
|Registration of Documents||$100.00||2015-02-27|
|Maintenance Fee - Application - New Act||3||2016-03-21||$50.00||2016-01-15|
|The completion of the application||$200.00||2016-01-19|
|Maintenance Fee - Patent - New Act||4||2017-03-21||$50.00||2017-02-22|