Liquid purification or separation – Portable receptacle with hood or closure
Reexamination Certificate
2003-01-20
2004-05-11
Cintins, Ivars C. (Department: 1724)
Liquid purification or separation
Portable receptacle with hood or closure
C210S282000, C210S455000, C210S473000, C210S484000
Reexamination Certificate
active
06733669
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to filtering containers and, more specifically, to a personal water filtering system comprising a portable bottle having a top member and a bottom member threadedly connected having a filtering material therebetween. The top member having a first and second spout. The first spout provides means for pouring water into a first chamber which provides means for the water to gravitational pass into the second chamber through said filtering material. The water in the second chamber is in fluid communication with the second spout by means of at least one conduit contained within the top member. The filtering material can be periodically replaced by separating the two members, which provides access to the filtering material.
2. Description of the Prior Art
There are other filtering devices designed for portable containers. Typical of these is U.S. Pat. No. 703,654 issued to Hall on Jul. 1, 1902.
Another patent was issued to Klumb et al., on Feb. 12, 1957 as U.S. Pat. No. 2,781,312. Yet another U.S. Pat. No. 4,714,550 was issued to Malson et al., on Dec. 22, 1987 and still yet another was issued on Jan. 24, 1989 to Moser as U.S. Pat. No. 4,800,018.
Another patent was issued to Iana on Jun. 16, 1992 as U.S. Pat. No. 5,122,272. Yet another U.S. Pat. No. 5,186,830 was issued to Rait on Feb. 16, 1993. Another was issued to Daniels on Jul. 11, 1995 as U.S. Pat. No. 5,431,813 and still yet another was issued on Oct. 8, 1996 to Magnusson as U.S. Pat. No. 5,562,824.
Another patent was issued to Nohren, Jr. et al., on Mar. 11, 1997 as U.S. Pat. No. 5,609,759. Yet another U.S. Pat. No. 5,733,448 was issued to Kaura on Mar. 31, 1998. Another was issued to Mozayeni on Nov. 3, 1998 as U.S. Pat. No. 5,830,360 and still yet another was issued on Feb. 5, 2002 to Moorehead et al., as U.S. Pat. No. 6,344,146.
U.S. Pat. No. 703,654
Inventor: Almon Hall
Issued: Jul. 1, 1902
The invention is a canteen for hand manipulation comprising in its construction a body portion, two chambers enclosed within the cavity of the body portion, one of said chambers being for unfiltered water and the other chamber being for filtered water, a filtering body interdisposed between and in communication with said two chambers, and an air-pump connected to the chamber for unfiltered water.
U.S. Pat. No. 2,781,312
Inventor: George H. Klumb et al.
Issued: Feb., 12, 1957
The invention discloses means for treating and purifying water from undesirable constituents contained therein, comprising a receptacle having an access opening and containing a loose mass of treating material and adapted to receive a supply of water within the receptacle and adapted to be freely dispersed through the water to purify the same, a filter for filtering the treated water and retaining in the receptacle the treating material and undesirable constituents and visual indicating means to impart color to the watt being treated when the treating material is partially or wholly exhausted and thereby signal the operator when the quality of the treated water is below a specified standard.
U.S. Pat. No. 4,714,550
Inventor: William S. Malson et al.
Issued: Dec. 22, 1987
A water purifying system includes an elongate chambered purifying assembly sized to be detachable mounted in a conventional canteen. The assembly is provided with an internal chamber filled with a particulate water purifying material and concentric tubes within the chamber require water flowing into the chamber through a filtered inlet at the bottom of the assembly to follow an extended chambered flow path through the purifying material to an outlet at the top of the assembly. The assembly includes a manually operable pump for pressurizing said container, thereby pumping water from the canteen through the purifying assembly.
U.S. Pat. No. 4,800,018
Inventor: Ronald T. Moser
Issued: Jan. 24, 1989
A simplified portable water purification system provides an unfiltered water receiving compartment, a disposable filter cartridge, and a filtered water reservoir all in a single container. The container has a removable lid and is a vertically positioned, wide-mouth, tubular structure. The disposable filter cartridge is horizontally positioned centrally and divides the container into the two compartments. Contaminated and unfiltered water poured into the top receiving compartment of the container gravitates through filtering materials in the disposable filter cartridge. Filtering materials comprising a top macro fabric filter, a core of silver impregnated granular activated carbon, and a bottom micro fabric filter remove contaminants and sediments from the water percolated through the disposable filter cartridge. The taste of the water is improved and possible odors are removed. A spigot is provided low on the container into the filtered water recovery and reservoir compartment for drawing filtered water to use.
U.S. Pat. No. 5,122,272
Inventor: E. Charles Iana
Issued: Jun. 16, 1992
A container assembly for holding a supply of drinking liquid includes a watertight container. A removable filter device extends into the container through an opening at the top. The filter device comprises an elongated cylindrical member having an inner wall divides the area inside of an upper chamber and a lower chamber and forms a sipping tube for accessing the lower chamber through the upper chamber water filter is disposed in the lower chamber. In using the container, air is drawn in through the upper chamber and drinking liquid is drawn out through the sipping straw by suction.
U.S. Pat. No. 5,186,830
Inventor: Joseph M. Rait
Issued: Feb. 16, 1993
Abstract for the drinking water which includes a lower non-porous container to receive the filtrate. An upper vessel closed at its lower end by a high density ceramic filter is stacked in nested relationship to the lower container. When water containing contaminants and pollutants is poured into the filter vessel, it drips through the ceramic filter under gravitational forces and is stored in the lower receptacle.
U.S. Pat. No. 5,431,813
Inventor: Jack E. Daniels
Issued: Jul. 11, 1995
A filtering bottle which includes a water filtering apparatus incorporated within the neck of the bottle. During normal consumption of the water from the water filtering bottle, waiter is filtered by the filtering apparatus to remove unwanted substances in the water such as pesticides, chlorine, particulate matter, algae, bacteria, heavy metals, and improves odor and flavor of the consumable water.
U.S. Pat. No. 5,562,824
Inventor: Jan H. Magnusson
Issued: Oct. 8, 1996
A gravity percolation water purifier assembly. The assembly includes a covered storage container having a dispensing spigot. A flanged filtration chamber is supported beneath the cover to receive untreated water. A porous filter cartridge is sealed to an outlet port. A purifier cartridge is threaded to the outlet port and supports multiple fibrous spacers and treatment chambers containing beds of treatment media, including a multi-valent iodine media, granular activated carbon, and a halogen scavenger media. In one purification cartridge, water passes from multiple inlet ports at an inlet bore through adjoining centric chambers and to the storage container via outlet ports at the periphery of the purifier cartridge.
U.S. Pat. No. 5,609,759
Inventor: John E. Nohren, Jr. et al.
Issued: Mar. 11, 1997
A filter assembly, particularly for use with a plastic bottle having an open neck with an inside diameter of about 50 mm or less (e.g. about 25 mm), includes a tube of filtering material connected to one surface of a cap while a valve extends from an opposite surface of the cap. The tube is preferably of filtering material such as activated carbon with plastic binder, having a substantially continuous liquid-porous sidewall, a hollow interior, a first closed end, and a second open end. The tube is operatively connected to the cap second surface at the tube second open end by sonic welding, a mechanical connection, or adhesively. The cap has a fitting
Cintins Ivars C.
Kroll Michael I.
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