CA1326501C - Additive delivery system - Google Patents
Additive delivery systemInfo
- Publication number
- CA1326501C CA1326501C CA 612633 CA612633A CA1326501C CA 1326501 C CA1326501 C CA 1326501C CA 612633 CA612633 CA 612633 CA 612633 A CA612633 A CA 612633A CA 1326501 C CA1326501 C CA 1326501C
- Authority
- CA
- Canada
- Prior art keywords
- fitting
- additive
- product
- hose
- delivery system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/008—Making of fire-extinguishing materials immediately before use for producing other mixtures of different gases or vapours, water and chemicals, e.g. water and wetting agents, water and gases
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/04—Distributing under pressure; Distributing mud; Adaptation of watering systems for fertilising-liquids
- A01C23/042—Adding fertiliser to watering systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/32—Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid
- B67D7/34—Means for preventing unauthorised delivery of liquid
- B67D7/344—Means for preventing unauthorised delivery of liquid by checking a correct coupling or coded information
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/74—Devices for mixing two or more different liquids to be transferred
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/74—Devices for mixing two or more different liquids to be transferred
- B67D2007/745—Devices for mixing two or more different liquids to be transferred for obtaining fuel of a given octane level
- B67D2007/748—Devices for mixing two or more different liquids to be transferred for obtaining fuel of a given octane level by mixing fuel with additives, e.g. anti-knocking agents
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Pipeline Systems (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Additive delivering system includes an interface fitting between a product delivery hose and a product receiving connection. The fitting is keyed to the product receiving connection in such a manner that the fitting must be attached to the product receiving connection before product flow can be delivered from the product delivery hose to the product receiving connection. An injector mechanism is connected to the fitting for auto-matically injecting additive to the product flow through the fitting.
Additive delivering system includes an interface fitting between a product delivery hose and a product receiving connection. The fitting is keyed to the product receiving connection in such a manner that the fitting must be attached to the product receiving connection before product flow can be delivered from the product delivery hose to the product receiving connection. An injector mechanism is connected to the fitting for auto-matically injecting additive to the product flow through the fitting.
Description
i- 1326~
ADDITIVE DELIVERY SYSTEM
, BACKGROUND OF THE INVENTION
. This invention relates generally, as indicated, to an additive delivery system for use in tresting fuel and other nuids with chemical additives and the like~
Many fuels and other fluids must be treated with additives prior to distribution and use for proper performance. Fuels ~are typically shipped to a terminal untreated. However, when the fuels leav~ the terminal, it is important that they contain the~proper additives at the correct treatment level to ensure the uniqueness of one brand of fuel from another. Also, different grades of fuel are treated with different additives or at different treatment levels.
It is generally known to provide injector systems for in~ecting precise amounts of additives into fuels and other fluids, hereinafter some-times referred to as product nOw. However, there is a;need for an additive delivery system that virtually ensures that the product flow being delivered or~used has;been~uniformly treated with the correot additive at the proper treatment lev;el.
SU~q~MARY OF THE INVENTION~
Iniaccordance with the present~invention,~an additive delivery system is provided that ~ includes ~an ~ additive injector mechanism~ ~for delivering the desired additive treatment level to the product flow through a unique keyed fitting that provides an~ interface between R` tank truck hose delivery connection or the Iike and an underground storage tsnk connection. ~ -The interface fitting with additive~hose connected~thereto~is keyed to the underground~storage tank connection~ in~6uch a ma:nner that the~ fittlng must be attached thereto before~ product flow can be delivered from the tank~
truck ~to the underground~ stt>rage ~tank, thus~ensurlng that no~ product ~low can be accepted or used uniess the~desired additive treatment takes place.
The~ additive injector mechanism ~may include a system start delay to give the operator~sufficient time to;connect the tank truck delivery hose to the interface fitting and initiate product flow through the deli-rery :~: ' : , :
~6~1 hose by the time additive is injected into the product passing through the fitting.
After the system start delay tirnes out, additive will be injected automatically at a rate and amount controlled by the injector mechanism.
Alternatively, a flow sensor may be provided inside the interface fitting for automatic starting and stopping of the additive injector mechanism. The flow sensor may operate like a switch to turn the injector mechanism on or o~f depending on whet;her there is product flow dlrough the fitting. When a signal is received from the flow sensor in response to product flowing through the fitting, the injector mechanism will automatically inject additive into the fitting. If the product flow through the fitting is stopped for any reason, the injector mechanism will go into a standbycondition, and will resume additional injection when the product flow resumes.
The additive delivery system of the present invention may also incorporate a self-checking verification system that monitors the injection process. Should the correct amount of additive to be injected not agree with the pre-set amo~mt or should any failure occur, the system will sound an alarm. Also, a fluid measuring meterwith its OWIl totalizer may be utilized to provide ~Irther verification.
Accordingly, the invention provides an additive supply delivery system comprising a hand positionable fitting for providing an interface cormection between a product delivery hose and a product receiving colmection that is configured toprevent the product delivery hose from being directly connected thereto, and means for delivering additive to the fitting during product flow through the fitting, the fitting being configured at one end for connection to the product delivery h~se and at its other end for connection to the product receiving connection, thus requiring attachment of the fitting between the product receiving conn~ction and the product delivery hose in order for product to be delivered from the product delivery hose to the product receiving connection.
According to another aspect of the invention, an additive delivery system comprises a hand positionable fitting providing an interface connection between a ~ ,.. . .
~ ,. .. . . ..
., . . . ~ ;
: ~ "
i326~1 -2a-product delivery hose and a product receiving connection, means for controlling the flow of additive to the fitting, and alignment means between the fitting and product receiving connection requiring alignment of ~e fi~ting with the product receiving connection in order to attach the fitting to the product receiving connection before product can be delivered to the product receiving connection.
;According to still another aspect of the invention, an interface fitting for providing an interface connection between a product delivery hose and a product receiving connection and for supplying additive to product flowing t~rough the fitting comprises a hand positionable fitting body having an inlet opening at one end for attachment to the product delivery hose, an outlet opening at another end for attachment to the product receiving cor~ection, and an additive delivery opening in the body intermediate the inlet and outlet openings for connection of an additive hose thereto, ~e body having alignment means at said another end which must be brought into aligmnent with alignment means on the product receiving connection before the fitting can be connected to the product receiving connection.
;To ~e accomplishrnent o~ the foregoing aad related ends, the in~en~ion, then, :~ comprises the features hereinafter fl~lly described and particularly pointed out in the claims, the following description and the amlexed drawings setting forth in detail certain illustrative embodiments of ~e invention, these being indicative, however, of but several of the various ways in which the principles of the invention may be employed.
BRIEF DESCRIPTION OF THE DRAWINGS
In the annexed drawings:
Fig. 1 is a schematic perspective view of a preferred from of additive delivery system in accordance with this invention shown in use supplying additive to the product flow from a tank truck as the prcduct passes t}lrough a fitting which provides a unique interface between the tank truck hose and an existing underground tank connection or the like;
,,..J ; ~
: ~ , , .
l32~al .
Fig. 2 is an enlarged perspective view of the additive injector mechanism and special fitting shown in Fig. l;
Fig. 3 is an enlarged schematic perspective view of a modified form of fitting in accordance with this invention shown connected to one of sever~l underground storage tank connections; and Fig. 4 is a further enlarged schematic exploded view showing the keyed connection between the speci~l fitting and one of the underground storage tank connections.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now in detail to the drawings, and initi~lly to Fig. 1, there is shown a preferred form of additive delivery system 1 in accordance with this invention ineluding 8 positive displacement pump 2 for supplying additive liquid of any desired type from an additive storage tank 3 to an injector mechanism 4. The injector mechanism 4 includes a precise metering device that can be set (and locked) at the desired treatment level for precisely metering the flow of such additive through an additive hose 5 to a special fitting 6 used to interface a tank truck hose 7 or the like with an existing underground storage tank connection 8 as described hereafter.
The injector mechanism 4 is desirably of the type sold by Gate City Oil Equipment Company) Inc. of Atlanta, Georgia, under the trademark GATE-PAK. TQ ensure positive inje~tion of the additive inlo the product flow through the fitting 6, the positive displacement pump 2 should desirably supply additive to the injector mechanism 4 at a pressure of at least 20 to 25 psig above the pressure drop (differential) tXrough the injector mechanism 4 and additive hose 5 plus the minimum injection point pressure at the fitting 6. For easy handling and use of the additive delivery system 1 of the present invention, both the additive storage tank 3 and injector mechanism 4 as well as the positi~e displacement pump 2 are desirably mounted on a free~tanding base 10 with ~ll components pre~wired. Also, a spring-loaded rewind reel 11 is desirably mounted on the base 10 for storage of the additive hose 5 when the system is not in use.
As can be seen in Figs. 2 and 3, the special interface fitting 6 of the present invention may mclude the usual lever operated cams 15 and 1 3 ~
annular seals 16 at both ends for ease of attachment to standard adaptors 17 on the respective ends of the tank truck delivery hose 7 and underground storage tank connections 8. Such adaptors 17 include an external annular groove 18 into which the cams 15 on the fitting 6 ale radially movable by actuation of respective levers 19, 20 mounted exteriorly of the fitting ends.
As the cams 15 move radially inwardly into the respective adaptor grooves 18, the ends of the adaptors 17 are urged into fluid tight engagement with the annular seals 16 in the respective ends of the fitting~ in a manner well known in the art.
The adaptors 17 on the ends of the existing underground tank connections 8 are normally located inside a manhole 22 se-reral inches below the surface so that when the underground tank connections are capped, the caps do not protrude above the surface. To facilitate operation of the cam levers 2~ at the end of the fitting 6 which îits over the tanlc connection adaptors 17 without having to reach down inside the manholes 22, a single T-handle 23 may be connected to both cam levers 20 ~Fig. I) for simult~neous operation thereof. The handle 23 extends generally parallel to the fitting end and has a length sufficient to permit the handle 23 to be easily grasped by the operator and either pushed or pulled to move the respective cams 15 radially into and out of engagement with the groove 18 in tHe adaptor 17 on the end of the underground storage tank connection 8, in a manner well knowrl in the art.
HoweYer, the fitting 6 of the present invention differs from standard drop fittings in that it is a special keyed fitting to interface a standard drop connection with the existing underground storage tank con-nections. The interface fitting 6 is keyed to an underground storage tank connection 8 in such a manner that the fitting must be attached to the A `' underground storage tank connection 8 before the transport hose delivery connection can be made. This prevents fittings other than the special fitting ~ with additive hose 5 connected thereto from being connected to the underground tank connections. To that end, a key 24 (Figs. 3 and 4) is provided on the exterior of the respective underground tank connection adaptors 17 which must be sligned with a keyway slot 25 in the lower end of . ~
1326~
the fitting 6 in order for the fitting to be received on such adaptors and the fitting se~lingly connected thereto before product delivery is made. This ensures that no product can be accepted and used unless additive treatment takes place as described hereafter.
A handle a6 may be provided on the exterior of the fitting 6 for ease of attachment and removal of the fitting from the underground storage tank connection adaptors 17. Also, the handle 26 may conveniently be used to hang the fitting 6 on a bracket or the like on the free standing base 10 adjacent the injector mechanism 4 after the fitting 6 has been disconnected from the underground storage tank connection adaptor 17 and the additive hose 5 has been rewound on the hose reel 11.
If desired, the injector mechsnism 4 may include a system start delay to give the operator sufficient time to attach the tank truck hose 7 to the fitting 6 after the fitting 6 has been connected to the flppropriate underground tank connection adaptor 17 and initiate product flow through the tank truck hose by the time the injector mechanism 4 begins injecting the additive automatically. The rate and amount of additive will be controlled by the injector mechanism in known manner.
Alternatively, a flow sensor 27 may be provided inside the interface fitting 6~ as sc~ematically shown in Fig. 3 for automatic starting and stopping of the injector mechanism 4. The flow sensor 27 may operate like a switch to turn the injector mechanism 4 on as soon 8S product flow from the tank truck 28 passes through the fitting 6. When a signal is received from the flow sensor 27 that product is flowing through the fitting 6, the injector mechanism 4 will automatically inject additive into the product as it flows through the fitting and into the underground storage tank. If the flow through the fitting 6 i5 stopped for any reason, the injector mechanism 4 wilI go into a standby condition and will resume additional injection when the product flow resumes.
Also, if desired, the injector mechanism 4 may incorporate a self-checking 7rerification system that monitors the injection process.
Should the correct amount of additive to be injected not agree with the pre-set amount or should any failure occur, the injector mechanism may, for . .
13265Ql example, sound an alarm. Moreover, a fluid measuring meter with its own totalizer may be incorporated in the system to provide further verification.
To operate the additive delivery system I of the present in-vention, first the interface fitting 6 with additive hose 5 connected thereto is removed from its storage position shown in Fig. 2 and attached to the keyed underground storage tank connection adaptor 17 ~s shown in Fig. 3.
Next the injector mechanism 4 is turned on and the total amount of additive to be unloaded into the underground storage tank is pre~et and the injector rate matched with the aver~ge product unloading flow rate. The operatol may then depress the injector start button. If the injector mechanism 4 is provided with an adjustable time delay, the time delay should be set to give the operator sufficient time, for example, two minutes, to attach the tank truck hose 7 to the special fitting 6 as shown in Fig. 1 and initiate product flow from the tank truck 28 just as the injector mechanism 4 start delay times out and begins injecting additive automatically. If, on the other hand, the additive delivery system 1 includes a flow sensor 27 inside the fitting 6, the flow sensor 27 will automatically cause the injector mechanism 4 to inject additive as soon as a signal is received from the flow sensor that product is flowing through the fitting 6.
After the pre-set amounts of product and additive have been unloaded into the underground storage tank, both the product flow from the tank truck 28 and the additive flow from the additive delivery system 1 will automaticslly stop. If no additional flow is desired, the operator will disconnect the tank truck hose 7 from the fitting 6 and disconnect the fitting 8 from the underground storage tank connection 8. Thereafter, the operator may cap the underground storage tank connection 8 and rewind th additive hose 5 on the hose reel 11 and return the fitting 6 to its proper storage position on the free standing base 10. Then the operator msy completely shut down the injector mechanism 4 ~nd secure the systemO
From the foregoing, it will now be apparent that the additive delivery system of the present invention not only ensures that the produ~t delivered or used is treated uniformly with the correct additive and ,., ~ ,. . .
:. ~
~2~Q~
treatment level, but also makes it virtually impossible to use product which has not been thus properly treated.
Although the inrention has been shown and described with respect to certain preferred embodiments, it is obvious that equivalent alterations and modifications will occur to others skilled in the art upon the reading and understanding of the specification. The present invention includes all such aIterations and modifications, and is limited only by the scope of the claims.
..
ADDITIVE DELIVERY SYSTEM
, BACKGROUND OF THE INVENTION
. This invention relates generally, as indicated, to an additive delivery system for use in tresting fuel and other nuids with chemical additives and the like~
Many fuels and other fluids must be treated with additives prior to distribution and use for proper performance. Fuels ~are typically shipped to a terminal untreated. However, when the fuels leav~ the terminal, it is important that they contain the~proper additives at the correct treatment level to ensure the uniqueness of one brand of fuel from another. Also, different grades of fuel are treated with different additives or at different treatment levels.
It is generally known to provide injector systems for in~ecting precise amounts of additives into fuels and other fluids, hereinafter some-times referred to as product nOw. However, there is a;need for an additive delivery system that virtually ensures that the product flow being delivered or~used has;been~uniformly treated with the correot additive at the proper treatment lev;el.
SU~q~MARY OF THE INVENTION~
Iniaccordance with the present~invention,~an additive delivery system is provided that ~ includes ~an ~ additive injector mechanism~ ~for delivering the desired additive treatment level to the product flow through a unique keyed fitting that provides an~ interface between R` tank truck hose delivery connection or the Iike and an underground storage tsnk connection. ~ -The interface fitting with additive~hose connected~thereto~is keyed to the underground~storage tank connection~ in~6uch a ma:nner that the~ fittlng must be attached thereto before~ product flow can be delivered from the tank~
truck ~to the underground~ stt>rage ~tank, thus~ensurlng that no~ product ~low can be accepted or used uniess the~desired additive treatment takes place.
The~ additive injector mechanism ~may include a system start delay to give the operator~sufficient time to;connect the tank truck delivery hose to the interface fitting and initiate product flow through the deli-rery :~: ' : , :
~6~1 hose by the time additive is injected into the product passing through the fitting.
After the system start delay tirnes out, additive will be injected automatically at a rate and amount controlled by the injector mechanism.
Alternatively, a flow sensor may be provided inside the interface fitting for automatic starting and stopping of the additive injector mechanism. The flow sensor may operate like a switch to turn the injector mechanism on or o~f depending on whet;her there is product flow dlrough the fitting. When a signal is received from the flow sensor in response to product flowing through the fitting, the injector mechanism will automatically inject additive into the fitting. If the product flow through the fitting is stopped for any reason, the injector mechanism will go into a standbycondition, and will resume additional injection when the product flow resumes.
The additive delivery system of the present invention may also incorporate a self-checking verification system that monitors the injection process. Should the correct amount of additive to be injected not agree with the pre-set amo~mt or should any failure occur, the system will sound an alarm. Also, a fluid measuring meterwith its OWIl totalizer may be utilized to provide ~Irther verification.
Accordingly, the invention provides an additive supply delivery system comprising a hand positionable fitting for providing an interface cormection between a product delivery hose and a product receiving colmection that is configured toprevent the product delivery hose from being directly connected thereto, and means for delivering additive to the fitting during product flow through the fitting, the fitting being configured at one end for connection to the product delivery h~se and at its other end for connection to the product receiving connection, thus requiring attachment of the fitting between the product receiving conn~ction and the product delivery hose in order for product to be delivered from the product delivery hose to the product receiving connection.
According to another aspect of the invention, an additive delivery system comprises a hand positionable fitting providing an interface connection between a ~ ,.. . .
~ ,. .. . . ..
., . . . ~ ;
: ~ "
i326~1 -2a-product delivery hose and a product receiving connection, means for controlling the flow of additive to the fitting, and alignment means between the fitting and product receiving connection requiring alignment of ~e fi~ting with the product receiving connection in order to attach the fitting to the product receiving connection before product can be delivered to the product receiving connection.
;According to still another aspect of the invention, an interface fitting for providing an interface connection between a product delivery hose and a product receiving connection and for supplying additive to product flowing t~rough the fitting comprises a hand positionable fitting body having an inlet opening at one end for attachment to the product delivery hose, an outlet opening at another end for attachment to the product receiving cor~ection, and an additive delivery opening in the body intermediate the inlet and outlet openings for connection of an additive hose thereto, ~e body having alignment means at said another end which must be brought into aligmnent with alignment means on the product receiving connection before the fitting can be connected to the product receiving connection.
;To ~e accomplishrnent o~ the foregoing aad related ends, the in~en~ion, then, :~ comprises the features hereinafter fl~lly described and particularly pointed out in the claims, the following description and the amlexed drawings setting forth in detail certain illustrative embodiments of ~e invention, these being indicative, however, of but several of the various ways in which the principles of the invention may be employed.
BRIEF DESCRIPTION OF THE DRAWINGS
In the annexed drawings:
Fig. 1 is a schematic perspective view of a preferred from of additive delivery system in accordance with this invention shown in use supplying additive to the product flow from a tank truck as the prcduct passes t}lrough a fitting which provides a unique interface between the tank truck hose and an existing underground tank connection or the like;
,,..J ; ~
: ~ , , .
l32~al .
Fig. 2 is an enlarged perspective view of the additive injector mechanism and special fitting shown in Fig. l;
Fig. 3 is an enlarged schematic perspective view of a modified form of fitting in accordance with this invention shown connected to one of sever~l underground storage tank connections; and Fig. 4 is a further enlarged schematic exploded view showing the keyed connection between the speci~l fitting and one of the underground storage tank connections.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now in detail to the drawings, and initi~lly to Fig. 1, there is shown a preferred form of additive delivery system 1 in accordance with this invention ineluding 8 positive displacement pump 2 for supplying additive liquid of any desired type from an additive storage tank 3 to an injector mechanism 4. The injector mechanism 4 includes a precise metering device that can be set (and locked) at the desired treatment level for precisely metering the flow of such additive through an additive hose 5 to a special fitting 6 used to interface a tank truck hose 7 or the like with an existing underground storage tank connection 8 as described hereafter.
The injector mechanism 4 is desirably of the type sold by Gate City Oil Equipment Company) Inc. of Atlanta, Georgia, under the trademark GATE-PAK. TQ ensure positive inje~tion of the additive inlo the product flow through the fitting 6, the positive displacement pump 2 should desirably supply additive to the injector mechanism 4 at a pressure of at least 20 to 25 psig above the pressure drop (differential) tXrough the injector mechanism 4 and additive hose 5 plus the minimum injection point pressure at the fitting 6. For easy handling and use of the additive delivery system 1 of the present invention, both the additive storage tank 3 and injector mechanism 4 as well as the positi~e displacement pump 2 are desirably mounted on a free~tanding base 10 with ~ll components pre~wired. Also, a spring-loaded rewind reel 11 is desirably mounted on the base 10 for storage of the additive hose 5 when the system is not in use.
As can be seen in Figs. 2 and 3, the special interface fitting 6 of the present invention may mclude the usual lever operated cams 15 and 1 3 ~
annular seals 16 at both ends for ease of attachment to standard adaptors 17 on the respective ends of the tank truck delivery hose 7 and underground storage tank connections 8. Such adaptors 17 include an external annular groove 18 into which the cams 15 on the fitting 6 ale radially movable by actuation of respective levers 19, 20 mounted exteriorly of the fitting ends.
As the cams 15 move radially inwardly into the respective adaptor grooves 18, the ends of the adaptors 17 are urged into fluid tight engagement with the annular seals 16 in the respective ends of the fitting~ in a manner well known in the art.
The adaptors 17 on the ends of the existing underground tank connections 8 are normally located inside a manhole 22 se-reral inches below the surface so that when the underground tank connections are capped, the caps do not protrude above the surface. To facilitate operation of the cam levers 2~ at the end of the fitting 6 which îits over the tanlc connection adaptors 17 without having to reach down inside the manholes 22, a single T-handle 23 may be connected to both cam levers 20 ~Fig. I) for simult~neous operation thereof. The handle 23 extends generally parallel to the fitting end and has a length sufficient to permit the handle 23 to be easily grasped by the operator and either pushed or pulled to move the respective cams 15 radially into and out of engagement with the groove 18 in tHe adaptor 17 on the end of the underground storage tank connection 8, in a manner well knowrl in the art.
HoweYer, the fitting 6 of the present invention differs from standard drop fittings in that it is a special keyed fitting to interface a standard drop connection with the existing underground storage tank con-nections. The interface fitting 6 is keyed to an underground storage tank connection 8 in such a manner that the fitting must be attached to the A `' underground storage tank connection 8 before the transport hose delivery connection can be made. This prevents fittings other than the special fitting ~ with additive hose 5 connected thereto from being connected to the underground tank connections. To that end, a key 24 (Figs. 3 and 4) is provided on the exterior of the respective underground tank connection adaptors 17 which must be sligned with a keyway slot 25 in the lower end of . ~
1326~
the fitting 6 in order for the fitting to be received on such adaptors and the fitting se~lingly connected thereto before product delivery is made. This ensures that no product can be accepted and used unless additive treatment takes place as described hereafter.
A handle a6 may be provided on the exterior of the fitting 6 for ease of attachment and removal of the fitting from the underground storage tank connection adaptors 17. Also, the handle 26 may conveniently be used to hang the fitting 6 on a bracket or the like on the free standing base 10 adjacent the injector mechanism 4 after the fitting 6 has been disconnected from the underground storage tank connection adaptor 17 and the additive hose 5 has been rewound on the hose reel 11.
If desired, the injector mechsnism 4 may include a system start delay to give the operator sufficient time to attach the tank truck hose 7 to the fitting 6 after the fitting 6 has been connected to the flppropriate underground tank connection adaptor 17 and initiate product flow through the tank truck hose by the time the injector mechanism 4 begins injecting the additive automatically. The rate and amount of additive will be controlled by the injector mechanism in known manner.
Alternatively, a flow sensor 27 may be provided inside the interface fitting 6~ as sc~ematically shown in Fig. 3 for automatic starting and stopping of the injector mechanism 4. The flow sensor 27 may operate like a switch to turn the injector mechanism 4 on as soon 8S product flow from the tank truck 28 passes through the fitting 6. When a signal is received from the flow sensor 27 that product is flowing through the fitting 6, the injector mechanism 4 will automatically inject additive into the product as it flows through the fitting and into the underground storage tank. If the flow through the fitting 6 i5 stopped for any reason, the injector mechanism 4 wilI go into a standby condition and will resume additional injection when the product flow resumes.
Also, if desired, the injector mechanism 4 may incorporate a self-checking 7rerification system that monitors the injection process.
Should the correct amount of additive to be injected not agree with the pre-set amount or should any failure occur, the injector mechanism may, for . .
13265Ql example, sound an alarm. Moreover, a fluid measuring meter with its own totalizer may be incorporated in the system to provide further verification.
To operate the additive delivery system I of the present in-vention, first the interface fitting 6 with additive hose 5 connected thereto is removed from its storage position shown in Fig. 2 and attached to the keyed underground storage tank connection adaptor 17 ~s shown in Fig. 3.
Next the injector mechanism 4 is turned on and the total amount of additive to be unloaded into the underground storage tank is pre~et and the injector rate matched with the aver~ge product unloading flow rate. The operatol may then depress the injector start button. If the injector mechanism 4 is provided with an adjustable time delay, the time delay should be set to give the operator sufficient time, for example, two minutes, to attach the tank truck hose 7 to the special fitting 6 as shown in Fig. 1 and initiate product flow from the tank truck 28 just as the injector mechanism 4 start delay times out and begins injecting additive automatically. If, on the other hand, the additive delivery system 1 includes a flow sensor 27 inside the fitting 6, the flow sensor 27 will automatically cause the injector mechanism 4 to inject additive as soon as a signal is received from the flow sensor that product is flowing through the fitting 6.
After the pre-set amounts of product and additive have been unloaded into the underground storage tank, both the product flow from the tank truck 28 and the additive flow from the additive delivery system 1 will automaticslly stop. If no additional flow is desired, the operator will disconnect the tank truck hose 7 from the fitting 6 and disconnect the fitting 8 from the underground storage tank connection 8. Thereafter, the operator may cap the underground storage tank connection 8 and rewind th additive hose 5 on the hose reel 11 and return the fitting 6 to its proper storage position on the free standing base 10. Then the operator msy completely shut down the injector mechanism 4 ~nd secure the systemO
From the foregoing, it will now be apparent that the additive delivery system of the present invention not only ensures that the produ~t delivered or used is treated uniformly with the correct additive and ,., ~ ,. . .
:. ~
~2~Q~
treatment level, but also makes it virtually impossible to use product which has not been thus properly treated.
Although the inrention has been shown and described with respect to certain preferred embodiments, it is obvious that equivalent alterations and modifications will occur to others skilled in the art upon the reading and understanding of the specification. The present invention includes all such aIterations and modifications, and is limited only by the scope of the claims.
..
Claims (19)
1. An additive delivery system comprising a hand positionable fitting for providing an interface connection between a product delivery hose and a product receiving connection that is configured to prevent the product delivery hose from being directly connected thereto, and means for delivering additive to the fitting during product flow through the fitting, the fitting being configured at one end for connection to the product delivery hose and at its other end for connection to the product receiving connection, thus requiring attachment of the fitting between the product receiving connection and the product delivery hose in order for product to be delivered from the product delivery hose to the product receiving connection.
2. The additive delivery system of claim 1 wherein the product receiving connection has an external key thereon receivable in a keyway slot in one end of the fitting.
3. The additive delivery system of claim 2 wherein the product receiving connection has an adaptor on an end thereof containing the key.
4. The additive delivery system of claim 3 wherein the adaptor has an external annular groove, and the fitting has a cam mechanism movable into an out of the annular groove for releasably attaching said one end of the fitting to the product receiving connection upon receipt of the key on the adaptor in the slot in the fitting.
5. The additive delivery system of claim 4 wherein the product delivery hose has another adaptor on an end thereof containing another external annular groove, and the fitting has an additional cam mechanism movable into and out of said another annular groove for releasably attaching the product delivery hose to thefitting.
6. The additive delivery system of claim 1 wherein the product delivery hose is connected to a tank truck, and the product receiving connection is connected to an underground storage tank.
7. The additive delivery system of claim 1 wherein said means for delivering additive to the fitting comprises an additive hose connected to the fitting, and an injector for injecting additive into the additive hose.
8. The additive delivery system of claim 7 wherein the injector includes means for controlling the rate and amount of additive to be injected into the additive hose.
9. The additive delivery system of claim 7 further comprising an additive storage tank, and a pump for supplying additive under pressure from the additivestorage tank to the injector.
10. The additive delivery system of claim 9 further comprising a free standing base on which the injector, additive storage tank, and pump are mounted.
11. The additive delivery system of claim 10 further comprising a hose wind-up reel mounted on the base for the additive hose.
12. The additive delivery system of claim 9 further comprising a flow sensor inside the fitting for detecting product flow through the fitting and wherein the injector is responsive to the detection of product flow through the fitting by the sensor to inject additive into the fitting.
13. An additive delivery system comprising a hand positionable fitting providing an interface connection between a product delivery hose and a product receiving connection, means for controlling the flow of additive to the fitting, and alignment means between the fitting and product receiving connection requiring alignment of the fitting with the product receiving connection in order to attach the fitting to the product receiving connection before product can be delivered to the product receiving connection.
14. The additive delivery system of claim 13 wherein the alignment means comprises an external key on the product receiving connection and a matching keyway slot on the fitting.
15. The additive delivery system of claim 14 wherein the means for delivering additive to the fitting comprises an additive hose connected to the fitting, and an injector for injecting additive into the additive hose.
16. The additive delivery system of claim 15 further comprising a flow sensor inside the fitting for detecting product flow through the fitting, and means for causing the injector to inject additive into the fitting during such detection of product flow through the fitting.
17. An interface fitting for providing an interface connection between a product delivery hose and a product receiving connection and for supplying additive to product flowing through the fitting comprising a hand positionable fitting body having an inlet opening at one end for attachment to the product delivery hose, an outlet opening at another end for attachment to the product receiving connection, and an additive delivery opening in the body intermediate the inlet and outlet openings for connection of an additive hose thereto, the body having alignment means at said another end which must be brought into alignment with alignment means on the product receiving connection before the fitting can be connected to the product receiving connection.
18. The fitting of claim 17 wherein the alignment means on the fitting comprises a keyway slot therein.
19. The fitting of claim 17 further comprising a flow sensor inside the fitting for detecting the flow of product passing through the fitting.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US25039688A | 1988-09-28 | 1988-09-28 | |
| US07/250,396 | 1988-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1326501C true CA1326501C (en) | 1994-01-25 |
Family
ID=22947563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 612633 Expired - Fee Related CA1326501C (en) | 1988-09-28 | 1989-09-22 | Additive delivery system |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA1326501C (en) |
| WO (1) | WO1990003329A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU644747B2 (en) * | 1991-07-17 | 1993-12-16 | Meastrol Instrument Service Pty Limited | Additive injector apparatus |
| NL9400563A (en) * | 1994-04-08 | 1995-11-01 | Micro Image Technology Ltd | Device for connecting a drain and return pipe to a vessel for liquids. |
| IES970901A2 (en) * | 1997-12-19 | 1999-07-14 | Cassiano Ltd | Method and apparatus for on board adding of an additive to a fluid carried on a tanker truck |
| GB2510549A (en) * | 2012-08-29 | 2014-08-13 | Nch Europ Inc Lab | Automatic Fluid Dosage System for Storage Tanks |
| CA2882577C (en) | 2012-09-06 | 2018-09-11 | Kemkey, Llc | Material transfer system and method of transferring material |
| MX2020013578A (en) | 2018-06-12 | 2021-04-13 | Total Meter Services Inc | Additive injection system for a retail fueling station and related methods. |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3190504A (en) * | 1963-12-18 | 1965-06-22 | Gilbert & Barker Mfg Company A | Apparatus for mixing metered quantities of lubricating oil with gasoline |
| US3283957A (en) * | 1964-01-27 | 1966-11-08 | Henderson William Dick | Liquid proportioning system |
| GB1520874A (en) * | 1975-07-18 | 1978-08-09 | Triple E Uk Ltd | Apparatus for adding a liquid additive to a main liquid |
| DE3638293A1 (en) * | 1986-11-08 | 1988-05-19 | Sening Fa F A | Device for filling and emptying a transporting tank having a plurality of chambers for liquid products which are to be kept separate from one another |
| DE8716413U1 (en) * | 1987-12-12 | 1988-03-10 | Alfons Haar, Maschinenbau GmbH & Co KG, 2000 Hamburg | Coupling for liquids, especially dry coupling for tank trucks |
-
1989
- 1989-09-20 WO PCT/US1989/004108 patent/WO1990003329A1/en unknown
- 1989-09-22 CA CA 612633 patent/CA1326501C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| WO1990003329A1 (en) | 1990-04-05 |
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| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |