Toyo Aerosol Industry Co., Ltd.

Other

Toshiyuki Mitsui

Iwao Yazawa

Kazunori Hoshino

Yukio Hachinohe

Kazuhide Maeda

Takeshi Kato

Hideaki Saito

Koh Naito

A push button for powder aerosol has a push button body, a nozzle and a guide passage. The nozzle is formed in the push button body with a diameter in a range of 0.4 mm to 1.0 mm and a length in a range of 0.3 mm to 2.0 mm in communication with a stem of an aerosol container. The guide passage is formed in the push button body in continuation with an outer end of the nozzle in extending in a spraying direction of the nozzle and formed with a diameter of a range of 1.0 mm to 3.0 mm that is larger than the diameter of the nozzle and a length of a range of 3.0 mm to 20.0 mm for guiding the contents of the powder aerosol. The nozzle flows out the contents with diffusion suppressed, so that accurate application can be made to the limited range on aimed areas such as skins.

Push button for powder aerosol

A double chamber aerosol container capable of filling contents in the container has a container cap that constitutes a liquid container with an inner sack to be temporarily fitted to a bead portion of an outer container while the inner sack is placed within the outer container. When the inner sack is placed with the outer container, the lower end of the inner sack is not in contact with the bottom of the interior of the outer container. The propellant is filled in the outer container upon forming a filling gap between the container cap and the bead portion, and then the container cap is surely clinched to the bead portion of the outer container.

Double chamber aerosol container and manufacturing method therefor

A double chamber aerosol container has a soft elastic inner sack, mounted within a metal container body, and a housing mounted to a top end of an inner periphery of the inner sack. The inner sack is in contact with special sized temporarily fitting portion as well as insertion contact portion of the housing to prevent the propellant from leaking out. Where an inner diameter of the top end of the inner periphery of the inner sack is 1, the outer diameter of an insertion contact portion of the housing is set to 1.02 to 0.98, the maximum outer diameter of the temporarily fitting portion is set to 0.97 to 0.95, the minimum outer diameter of the temporarily fitting portion is set to 0.94 to 0.88, and the minimum portion is formed below the maximum portion as well as the width in the up and down directions of the temporarily fitting portion is set to 0.19 to 0.10.

Double chamber aerosol container

A double chamber aerosol container capable of filling contents in the container upon cutting off open air has an inner sack, whose volume is reducible according to reduction of contents, formed with temporarily engaging portions. A housing to which a valve assembly is arranged is inserted in the inner sack where the temporarily engaging portions are temporarily engaged with a ring-shaped neck portion of an outer container. After propellant is filled in a space between the inner sack 1 and the outer container during this temporarily engagement, the inner sack is inserted in the outer container to form the double chamber aerosol container.

A double-walled aerosol spray container includes a hollow outer jacket and a flexible bag therein. A substance to be sprayed is held in the bag, while a propellant is charged into a space outside of the bag and within the jacket. The construction of the aerosol spray container helps ensure that the bag does not slip off during manufacture or use thereof. The bag includes a flange about its open end, and the flange abuts an inwardly projecting engagement ridge formed on a corresponding part of the jacket, preferably with an annular packing therebetween. The bag has a storage section that is thinner than the flange, and is easily deflatable or deformable. The aerosol spray container also includes a housing in which a spray valve mechanism is incorporated. The housing includes an inner frame that is inserted into the open end of the bag so that the bag is securely held between the jacket and the housing.

Growing community of inventors

Saitama-ken, Japan

Toshiyuki Mitsui