Liquid purification or separation – With repair or assembling means
Patent
1990-03-16
1991-07-30
Dawson, Robert A.
Liquid purification or separation
With repair or assembling means
210282, 295251, 215341, 215346, 215352, 220323, B01D 2708
Patent
active
050357980
ABSTRACT:
A water filtration device is provided with a vessel body having an open interior for containing activated carbon used to filter water flowing through the open interior of the vessel body. The vessel body is preferably tubular with at least one open end and an end cap for closing the open end. The end cap can have an end wall and a tubular side wall dimensioned to fit over the tubular vessel body to close the open end. A circumferential groove, preferably semi-circular in cross-section, is provided on an inside surface of the side wall of the end cap. This circumferential groove mates with a circumferential groove on an outside surface of the tubular vessel body when the end cap is fitted over the open end to form a locking channel. A flexible retaining rod is inserted through an aperture in the side wall of the end cap and into the locking channel to prevent disengagement of the end cap from the vessel body. The invention provides a non-toxic alternative to toxic adhesives and other toxic materials previously used to secure end caps to the vessel body.
REFERENCES:
patent: 1477043 (1923-12-01), Drake
patent: 1974539 (1934-09-01), Le Comte
patent: 4781830 (1988-11-01), Olsen
Dawson Robert A.
Millard Wanda L.
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