Apparatus for retarding oxidation of leftover paint in a storage container
First Claim
1. Apparatus for retarding oxidation of liquid stored in a partially filled container comprising, in combination:
- a body with an open upper end, and a lower end;
a flexible liner, open at one end, said liner open end suspended on said upper end of said body, forming a recipient within said body;
a lid, attachable to the body upper end, with a filler port and a removable filler cap;
a movable bottom with means of locking said movable bottom into a desired position, further means to adjust the movable bottom up and down in the container, thereby changing the volume of the flexible liner, resulting in expelling all excess air out of the partially filled liner, through the open filler port.
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Abstract
An apparatus for retarding oxidation of paint that only partly fills a container, comprising a body, a flexible liner, a movable bottom plate, an attachable lid with a filler port through which the paint can be poured, and a removable filler cap. The movable bottom plate is adjusted up or down, thereby expanding or compressing the flexible liner and changing the volume of the container. After paint is added to the container, excess air is forced out of the container via the filler port by moving the bottom plate up towards the top of the container. When all extra air is expelled, the movable bottom plate is locked into position and the filler port is closed with the removable filler cap. Using this device allows paint to be stored in an air-free environment, reducing oxidation and resulting in greatly improving the shelf life of the stored paint.
14 Citations
8 Claims
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1. Apparatus for retarding oxidation of liquid stored in a partially filled container comprising, in combination:
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a body with an open upper end, and a lower end; a flexible liner, open at one end, said liner open end suspended on said upper end of said body, forming a recipient within said body; a lid, attachable to the body upper end, with a filler port and a removable filler cap; a movable bottom with means of locking said movable bottom into a desired position, further means to adjust the movable bottom up and down in the container, thereby changing the volume of the flexible liner, resulting in expelling all excess air out of the partially filled liner, through the open filler port. - View Dependent Claims (2, 3, 4, 5, 6)
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7. Apparatus for retarding oxidation of paint stored in a partially filled container comprising, in combination:
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a body with an open upper end, and a lower end; a lid with a peripheral sealing element, attachable to the body upper end, with a filler port and removable filler cap; a movable bottom containing, in combination; a radially extending sealing element so as to form a seal between the movable bottom and the inner walls of the body, a means to lock and vertically adjust said movable bottom in the container thereby changing the volume of the container and further resulting in expelling all excess air out of the partially filled container through the open filler port.
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8. A method of retarding oxidation of paint that only partly fills a container formed with a body, a flexible liner, a lid with an opening and a movable bottom, said method comprising the steps of:
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inserting the flexible liner into the body of said container, mounting an attachable lid with a filler orifice and removable cap, positioning a movable bottom plate to the lower part of said body, using a handle means to move said bottom plate up and down;
pouring the paint into said container through the open filler port in said lid;adjusting said movable bottom plate upwards so that all excess air in said container is expelled out of the container through the open filler port in said lid; locking said handle in the movable bottom plate and closing the filler port in said lid, thereby preventing air from entering the container and allowing the paint or liquid to be stored in an air-free environment, thereby retarding oxidation of the stored paint and increasing its shelf life.
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Specification