TH71745A - Methods and methods for filling the bag-type aerosol blocker on the valve. - Google Patents

Abstract

DC60 (06/09/47) The bag-type aerosol valve system is mounted on a valve in the container. The actuator is filled by pressure through the valve stem, outward onto the stem gasket and down into the outer channel of the container. The product is filled through the valve stem into the bag. The valve stem has an outer conical annular face, and the valve body has an inner conical annular face. The two facets are in tight annular contact to block the actuator from entering the bag when the valve stem is compressed to a predetermined position for pressure filling. The concave outer face of the stem, together with a spring-loaded radial sliding part, locks the stem in a second predetermined, less compressed position for product filling through the stem into the bag. The actuator and product may be filled sequentially using a general-purpose pressure filling device. After the valve is mounted on the container and the bag is mounted on the valve, the bag-type aerosol valve system is mounted on a valve in the container. The actuator is... Filling is achieved by applying pressure through the valve stem, outward onto the stem gasket, and down into the outer channel of the container. The product is filled through the valve stem into the bag. The valve stem has an annular conical outer surface, and the valve body has an inner annular conical surface. These two surfaces are in tight annular contact, sealing the actuator to prevent product entry into the bag. When the valve stem is compressed to a predetermined position for filling, the concave outer surface of the stem, in conjunction with a spring-loaded radial sliding part, locks the stem in a second predetermined, less compressed position for product filling. The actuator and product can be filled sequentially using typical pressure-assisted filling equipment, primarily after the valve is mounted on the container and the bag is mounted on the valve.

Claims (12)

1. A device that assists in filling the actuator using pressure into the aerosol valve system. A bag-type device is mounted on a valve containing a container. The actuator is filled into the inner channel of the container. The outer part of the bag consists of an aerosol valve with a valve stem, a valve body, and a bag mounted on the valve body. The valve stem has a central section with an outer conical annular surface, and the valve body has an inner conical annular surface. Each of these annular surfaces forms a tight annular contact with the other, preventing the actuator from entering the bag when the stem is heavily compressed for pressure-assisted actuator filling. 2. The device assists in filling the propellant using pressure in a bag-type aerosol valve system. The propellant is placed on a valve with a bag inside a container. The propellant is filled into the inner channel of the container. Outside the bag is the aerosol valve with a valve stem, valve body, and gasket fitted into a mounting cup. The gasket surrounds the valve stem and its upper surface presses against the lower surface of the mounting cup when the valve is closed. The bag is hermetically sealed to the valve body. The valve stem has an outer annular surface, and the valve body has an inner annular surface. Each of these annular surfaces is in tight annular contact with the other. When the stem is heavily compressed for pressure-assisted propellant filling, pressure is exerted between the upper surface of the gasket and the lower surface of the mounting cup, and around the outer edge of the gasket, thus preventing the propellant from entering the bag. 3. The device of claim paragraph 2 in which both the outer ring surface of the said stem and the inner ring surface of the said body are truncated cones. 4. The device of claim clause 3 in which both outer ring faces of the said rod are positioned at the center of the rod. 5. A device for filling products using pressure into the system. A bag-type aerosol valve is mounted on the valve. The product is filled into a bag that is hermetically sealed to the valve, and the valve stem has a concave section on its outer surface. It contains an insertion head with at least one spring-loaded sliding part. This spring-loaded sliding part can extend to the concave section of the stem to achieve precise stem compression for product dispensing when the stem is inserted into the insertion part. 6. The device of claim 5 consists of at least two spring-loaded sliding parts positioned at an angular distance from each other. 7. The device of claim paragraph 6 in which a spring-loaded sliding part is pushed inward radially to a position where such a valve stem can be inserted radially, can move outward radially when the stem is initially inserted into the part, and can move inward under spring pressure to the recess of the stem when the stem is further inserted into the part. 8. The device of claim 6, where the recess of the said rod is annular in shape, and the spring-loaded sliding part has a curved inner surface for projection onto the annular recess of the rod. 9. An apparatus under claim 5 or claim 6 in which the aerosol valve has a valve body and in which the valve stem has a part with an outer annular surface and the said valve body has an inner annular surface, each of which makes annular contact with the other during pressure-driven filling of the aerosol bag valve, but does not make annular contact with the other during pressure-driven filling of the product into the bag. 10. Method of pressure-filling the actuator and product in a spray valve system: A bag is mounted on a valve in a container, where the bag is hermetically sealed to the valve, and the valve is securely fastened to the container before filling. The valve includes a valve stem, valve gasket, and valve housing. This involves pressing and holding the valve stem at a predetermined position once to block entry into the bag through the valve housing during pressure-filling of the actuator. Pressure-filling of the actuator occurs along the stem and on the gasket into the container's inner and outer channels of the bag. Pressing and holding the valve stem at a second predetermined position is performed for product filling. Pressure-filling of the product occurs through the valve housing into the bag. The first predetermined position is achieved by applying significant pressure to the valve stem; the second predetermined position is achieved by applying less pressure to the valve stem. 11. Method of claim 10 where the propellant is added to the aerosol valve system before the product is added. 12. Method of claim 10 where the product is added to the aerosol valve system before the propellant is added.