Planister

Details Planister Planister

1992-01-31

1992-12-08

Foster, Jimmy G.

Special receptacle or package

Evacuated

215276, 215277, 215335, 215352, 220256, B65D 4108

Patent

active

051690039

ABSTRACT:
A vacuum-sealed shipping/storage system based on rigid cylinders of plastic or metal, of various diameters, permanently sealed at one end, with the opposite end having removable, double-sealed vacuum lids. In the case of three inch PVC pipe, the first, or primary lid is a common wide-mouth mason jar lid. Larger cylinders use a similar device. Over each primary lid, a single cap of molded or machined plastic or metal is threaded to a permanently affixed threaded collar, such threaded collar being fastened to the outer surface of the cylinder. Between this secondary cap and collar is found an O-ring, of common design, for the purpose of maintaining a secondary vacuum seal should the primary seal become loosened by shifting contents. Removal of both primary lid and secondary cap exposes the entire inner diameter of the cylinder for insertion or removal of materials. For storage-only applications, where little or no movement of the cylinder is anticipated, the primary lid alone will maintain course vacuum.

REFERENCES:
patent: 406542 (1889-07-01), Silva
patent: 714719 (1902-12-01), Long, Jr.
patent: 727808 (1903-05-01), Knowlton
patent: 1134069 (1915-03-01), White
patent: 1683388 (1928-09-01), Hammer
patent: 2449014 (1948-09-01), Shaffer
patent: 2685316 (1954-08-01), Krasno
patent: 4093094 (1978-06-01), Smalley et al.
patent: 4122964 (1978-10-01), Morris
patent: 4466553 (1984-08-01), Zenger

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