Fluid sprinkling – spraying – and diffusing – Slow diffusers – With support for porous or apertured encasing means
Patent
1989-06-14
1991-04-09
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Slow diffusers
With support for porous or apertured encasing means
239 55, A61L 904
Patent
active
050057634
ABSTRACT:
A container for material such as desiccant, adsorbent, absorbent or the like, including a molded shell made of high density polyethylene having a cylindrical side wall and an end wall and an open end, and a permeable membrane closing the open end by extending over onto the edge of the side wall and being deformed therewith and fused thereto into a frustoconical shape. A method of attaching a membrane across an opening of an annular deformable wall including the steps of placing a disc across the opening with the disc extending outwardly beyond the wall, and deforming the outer edge of the disc and the wall simultaneously by applying heat and pressure thereto to fuse the outer edge of the disc onto the wall. A container having a shell of the above-described type wherein the permeable membrane is secured to the end of the cylindrical side wall, and the overhanging portion of the membrane is sealed to the adjacent edge of the side wall which is deformed into a frustoconical shape.
REFERENCES:
patent: 2105551 (1938-01-01), Purdy
patent: 3558055 (1971-01-01), Storchheim
patent: 3849972 (1974-11-01), Pepmeier et al.
patent: 4157787 (1979-06-01), Schwartz
patent: 4161283 (1979-07-01), Hyman
patent: 4184310 (1980-01-01), Shelby
patent: 4809912 (1989-03-01), Santini
Boczkowski Frederick A.
Cullen John S.
Incorvia Samuel A.
Nigon Christopher S.
Gastel Joseph P.
Kashnikow Andres
Multiform Desiccants, Inc.
Trainor Christopher G.
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