CA2664508A1 - Improved aerosol and other propellant style pressurized can product delivery system - Google Patents
Improved aerosol and other propellant style pressurized can product delivery system Download PDFInfo
- Publication number
- CA2664508A1 CA2664508A1 CA 2664508 CA2664508A CA2664508A1 CA 2664508 A1 CA2664508 A1 CA 2664508A1 CA 2664508 CA2664508 CA 2664508 CA 2664508 A CA2664508 A CA 2664508A CA 2664508 A1 CA2664508 A1 CA 2664508A1
- Authority
- CA
- Canada
- Prior art keywords
- propellant
- product
- piston
- pressurized
- shall
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/60—Contents and propellant separated
- B65D83/64—Contents and propellant separated by piston
Description
My invention is an improved product delivery system for pressurized aerosol spray cans that contain a liquid or gaseous product. The system is not however limited to using aerosol as a propellant.
Any non-explosive or flammable gas or liquid expanding gas may be used as a propellant. The select propellant need not be non-poisonous or environmentally friendly due to the fact that it will remain sealed off from the product and from being released into the atmosphere indefinitely.
The invention is a piston within the spray can which separates the product from the propellant.
As the product is released a pressure drop will occur on the product side which will in turn allow the propellant to expand. This will push the piston up the can keeping the pressure of the product at a steady level to keep the spray stream at a consistent level. This is a great improvement over conventional aerosol spray cans because normally the propellant is depleted along with the product.
This creates a drop in pressure and spray stream consistency as the product is depleted. My invention does not allow the propellant to exit the can, it only expands as the product is used. Once the product is depleted the propellant remains within the can sealed from the environment.
The main objective of this system is to contain the propellant. Normal spray cans containing aerosol as a propellant are bad for the environment and also to the users health. The seal can be made hermetic so that this system may also be used to deliver non-poisonous products like food, beverages, medical products or anything that may be consumed and must not come in contact with an aerosol propellant.
Propellants other than aerosol may also be used provided that they are non-flammable or explosive. The propellant may be a pressurized gas, even normal atmosphere, or any liquid that will expand into a gas to equalize pressure.
Another advantage of having a sealed propellant is the ability to reuse the can once the product is depleted. With a one way valve the can be be refilled with water and used as a water spray canister.
The propellant would simply re-compress as the new product contents are injected.
Another advantageous feature of the invention is the fact that the propellant and the product are not mixed. Therefore the product may be pure and not contaminated with the propellant. In some cases where specific products are used this will also allow for more volume of the product to be contained within the can.
Another advantage to this product is the ability to spray the can upside down.
Normally aerosol cans use an internal dipstick as the exit for the product, when the can is turned upside down the product and propellant change places and the propellant itself will be released. My invention allows only the product to be released at any time. If the can is turned upside down the pressure from the propellant end of the can shall still allow the product to be released as it would if it were right side up.
Another use of this product is as a lighter whereas a small version of the inventive system shall be used to push lighter fluid through a nozzle. The propellant would be a non-flammable expanding gas or liquid expanding gas under slight pressure. The propellant pressure shall be only enough to provide a consistent amount of fuel to the nozzle and not to high a pressure that it may cause the lighter fuel to ignite.
In the drawings:
Figure 1 is a cross-section perspective view of a basic pressurized spray can.
Figure 2 is a cross-section perspective view of a pressurized spray can where the piston has piston rings.
Referring to the drawings in detail, in Figure 1 the numeral 1 represents the straight cylindrical walls of the can. 2 represents the curved top part of the can, at the very top of 2 shall be 3 a hole where an industry normal spray nozzle is attached. At the bottom of 1 the can walls is attached 4, an inner curved bottom for added strength of the can. (all can parts are shown as transparent for clarity) Within 1 the walls of the can shall be 5 a piston that has an identical curve to 5 the bottom of the can and 2 the top of the can to evenly distribute the forces of the contained pressure. The piston 5 shall have 6 a straight extrusion that shall conform to the inside of 1 the cylinder walls to keep 5 and 6 the piston parallel with the cans inner walls. The piston 5 separates 8 the propellant from 9 the product through 7, a hermetic seal between 5, 6 the piston and 1 the can walls.
The propellant 8 applies constant upward pressure against 9 the product through 5 the piston. As 9 the product is depleted it's pressure will remain relatively constant as 8 the propellant continually expands to keep constant pressure on 9 the product. This will create a steady exit of 9 the product.
In Figure 2 the numeral 1 represents the straight cylindrical walls of the can. 2 represents the curved top part of the can, at the very top of 2 shall be 3 a hole where an industry normal spray nozzle is attached. At the bottom of 1 the can walls is attached 4, an inner curved bottom for added strength of the can. (all can parts are shown as transparent for clarity) Within 1 the walls of the can shall be 5 a piston that has an identical curve to 5 the bottom of the can and 2 the top of the can to evenly distribute the forces of the contained pressure. The piston 5 shall have 6 a straight extrusion that shall conform to the inside of 1 the cylinder walls to keep 5 and 6 the piston parallel with the cans inner walls. In this version of the system the piston 5 and 6 shall be significantly smaller with respect to its diameter to 1 the cans inner walls.
There shall be 10 piston rings made of a rubber, silicon or other air tight sealing material. The piston rings shall be connected to 6 the straight extrusion part of 5 the piston. The rings 10 shall create 7 a hermetic seal between 9 the product and 8 the propellant. There may also be 11 a sealed space between 10 the piston rings where nor 8 the propellant or 9 the product shall exist. This space, 11 may be a dead air space or filled with an oil that would lubricate travel of the piston to ease its movement as it moves up the can walls. This oil would also further help 7 the hermetic seal stay air tight.
The propellant 8 applies constant upward pressure against 9 the product through 5 the piston. As 9 the' product is depleted it's pressure will remain relatively constant as 8 the propellant continually expands to keep constant pressure on 9 the product. This will create a steady exit of 9 the product.
Any non-explosive or flammable gas or liquid expanding gas may be used as a propellant. The select propellant need not be non-poisonous or environmentally friendly due to the fact that it will remain sealed off from the product and from being released into the atmosphere indefinitely.
The invention is a piston within the spray can which separates the product from the propellant.
As the product is released a pressure drop will occur on the product side which will in turn allow the propellant to expand. This will push the piston up the can keeping the pressure of the product at a steady level to keep the spray stream at a consistent level. This is a great improvement over conventional aerosol spray cans because normally the propellant is depleted along with the product.
This creates a drop in pressure and spray stream consistency as the product is depleted. My invention does not allow the propellant to exit the can, it only expands as the product is used. Once the product is depleted the propellant remains within the can sealed from the environment.
The main objective of this system is to contain the propellant. Normal spray cans containing aerosol as a propellant are bad for the environment and also to the users health. The seal can be made hermetic so that this system may also be used to deliver non-poisonous products like food, beverages, medical products or anything that may be consumed and must not come in contact with an aerosol propellant.
Propellants other than aerosol may also be used provided that they are non-flammable or explosive. The propellant may be a pressurized gas, even normal atmosphere, or any liquid that will expand into a gas to equalize pressure.
Another advantage of having a sealed propellant is the ability to reuse the can once the product is depleted. With a one way valve the can be be refilled with water and used as a water spray canister.
The propellant would simply re-compress as the new product contents are injected.
Another advantageous feature of the invention is the fact that the propellant and the product are not mixed. Therefore the product may be pure and not contaminated with the propellant. In some cases where specific products are used this will also allow for more volume of the product to be contained within the can.
Another advantage to this product is the ability to spray the can upside down.
Normally aerosol cans use an internal dipstick as the exit for the product, when the can is turned upside down the product and propellant change places and the propellant itself will be released. My invention allows only the product to be released at any time. If the can is turned upside down the pressure from the propellant end of the can shall still allow the product to be released as it would if it were right side up.
Another use of this product is as a lighter whereas a small version of the inventive system shall be used to push lighter fluid through a nozzle. The propellant would be a non-flammable expanding gas or liquid expanding gas under slight pressure. The propellant pressure shall be only enough to provide a consistent amount of fuel to the nozzle and not to high a pressure that it may cause the lighter fuel to ignite.
In the drawings:
Figure 1 is a cross-section perspective view of a basic pressurized spray can.
Figure 2 is a cross-section perspective view of a pressurized spray can where the piston has piston rings.
Referring to the drawings in detail, in Figure 1 the numeral 1 represents the straight cylindrical walls of the can. 2 represents the curved top part of the can, at the very top of 2 shall be 3 a hole where an industry normal spray nozzle is attached. At the bottom of 1 the can walls is attached 4, an inner curved bottom for added strength of the can. (all can parts are shown as transparent for clarity) Within 1 the walls of the can shall be 5 a piston that has an identical curve to 5 the bottom of the can and 2 the top of the can to evenly distribute the forces of the contained pressure. The piston 5 shall have 6 a straight extrusion that shall conform to the inside of 1 the cylinder walls to keep 5 and 6 the piston parallel with the cans inner walls. The piston 5 separates 8 the propellant from 9 the product through 7, a hermetic seal between 5, 6 the piston and 1 the can walls.
The propellant 8 applies constant upward pressure against 9 the product through 5 the piston. As 9 the product is depleted it's pressure will remain relatively constant as 8 the propellant continually expands to keep constant pressure on 9 the product. This will create a steady exit of 9 the product.
In Figure 2 the numeral 1 represents the straight cylindrical walls of the can. 2 represents the curved top part of the can, at the very top of 2 shall be 3 a hole where an industry normal spray nozzle is attached. At the bottom of 1 the can walls is attached 4, an inner curved bottom for added strength of the can. (all can parts are shown as transparent for clarity) Within 1 the walls of the can shall be 5 a piston that has an identical curve to 5 the bottom of the can and 2 the top of the can to evenly distribute the forces of the contained pressure. The piston 5 shall have 6 a straight extrusion that shall conform to the inside of 1 the cylinder walls to keep 5 and 6 the piston parallel with the cans inner walls. In this version of the system the piston 5 and 6 shall be significantly smaller with respect to its diameter to 1 the cans inner walls.
There shall be 10 piston rings made of a rubber, silicon or other air tight sealing material. The piston rings shall be connected to 6 the straight extrusion part of 5 the piston. The rings 10 shall create 7 a hermetic seal between 9 the product and 8 the propellant. There may also be 11 a sealed space between 10 the piston rings where nor 8 the propellant or 9 the product shall exist. This space, 11 may be a dead air space or filled with an oil that would lubricate travel of the piston to ease its movement as it moves up the can walls. This oil would also further help 7 the hermetic seal stay air tight.
The propellant 8 applies constant upward pressure against 9 the product through 5 the piston. As 9 the' product is depleted it's pressure will remain relatively constant as 8 the propellant continually expands to keep constant pressure on 9 the product. This will create a steady exit of 9 the product.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2664508 CA2664508A1 (en) | 2009-03-30 | 2009-03-30 | Improved aerosol and other propellant style pressurized can product delivery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2664508 CA2664508A1 (en) | 2009-03-30 | 2009-03-30 | Improved aerosol and other propellant style pressurized can product delivery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2664508A1 true CA2664508A1 (en) | 2010-09-30 |
Family
ID=42814285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2664508 Abandoned CA2664508A1 (en) | 2009-03-30 | 2009-03-30 | Improved aerosol and other propellant style pressurized can product delivery system |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2664508A1 (en) |
-
2009
- 2009-03-30 CA CA 2664508 patent/CA2664508A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |