News Column

Researchers Submit Patent Application, "Filtration Container Assemblies and Methods", for Approval

January 30, 2014



By a News Reporter-Staff News Editor at Politics & Government Week -- From Washington, D.C., VerticalNews journalists report that a patent application by the inventors Weston, Nancie (Camano Island, WA); Merrigan, Travis (Spokane, WA); Bargiel, Michael (Phoenix, AZ), filed on June 25, 2013, was made available online on January 16, 2014.

The patent's assignee is Grayl Inc.

News editors obtained the following quote from the background information supplied by the inventors: "Some people prefer to filter tap water to remove unwanted impurities, tastes, heavy metals and other toxins. Moreover, when collecting water from a natural, untreated source, such as a lake or a stream, or when traveling in a foreign country that does not treat its tap water, it is important to either filter or treat water for microbial contamination.

"Tap water is currently filtered using several different kinds of filtering systems, for example, faucet attachments, refrigerator filter systems, or pitcher or basin-type drip filtration system, from which a user may pour filtered water from the filter systems into his or her cup. Natural, untreated water is typically filtered using a hand-held, filter pump that typically uses vacuum pressure to draw water into the filter. Improved filter assemblies using positive pressure are desirable because drip filtering processes can take a long time and vacuum filtering processes can be hard work for the user.

"Positive pressure coffee and tea presses having a single container generally include a plunger received in an outer container. The plunger typically includes a screen filter mounted at the end of a shaft. Hot water is mixed with coffee grounds in the container, and the shaft is pressed down by the user into the container. As the shaft is pressed down, the screen filter presses the coffee grounds to the bottom of the container, while allowing the filtered coffee to pass through the screen to the top of the container. Depending on the tightness of the fit of the screen filter in the container, some grounds may pass to the filtered coffee around the outer perimeter of the screen filter, resulting in undesirable coffee grounds in the user's coffee. Because of the likeliness of contamination in the filtered coffee, a 'coffee-press' type water filter is not a good design for water filtration.

"Therefore, there exists a need for an improved positive-pressure filter assembly that can improve the experience for a user in filtering water, coffee, and other liquids. There also exists a need for other improvements in container assemblies, such as improved lid assemblies."

As a supplement to the background information on this patent application, VerticalNews correspondents also obtained the inventors' summary information for this patent application: "This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This summary is not intended to identify key features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

"In accordance with one embodiment of the present disclosure, a filtration container assembly is provided. The assembly generally includes an outer container having a first end and a second end and defining an inner cavity. The assembly further includes a plunging assembly configured to be received within the outer container inner cavity, wherein the plunging assembly includes an inner sleeve having a first end and a second end and an outer wall defining an inner bore, wherein the outer wall is continuous from the first end to the second end, and a filtration assembly coupled to the inner sleeve at the second end.

"In accordance with another embodiment of the present disclosure, a filtration container assembly is provided. The assembly generally includes an outer container having a first end and a second end and defining an inner cavity. The assembly further includes a plunging assembly configured to be received within the outer container inner cavity, wherein the plunging assembly includes un inner sleeve having a first end and a second end and defining an inner bore, wherein the cross-sectional area of the inner sleeve is substantially the same at the first end and the second end, and a filtration assembly coupled to the inner sleeve at the second end.

"In accordance with another embodiment of the present disclosure, a method of filtering liquids is provided. The method generally includes obtaining an outer container having an inner cavity and filling at least a portion of the outer container with a liquid. The method further includes obtaining a plunging assembly having an inner sleeve having a first end and a second end and defining an inner bore, wherein the plunging assembly is configured to be received within the inner cavity of the outer container, wherein the inner sleeve has a continuous outer wall extending from the first end to the second end, and wherein the plunging assembly includes a filter coupled to the plunging assembly at the second end, The method further includes pressing the plunging assembly into the inner cavity of the outer container, such that the liquid flow from the inner cavity of the outer container through the filter and into the inner sleeve of the plunging assembly.

"In accordance with another embodiment of the present disclosure, a filtration container assembly is provided. The assembly generally includes an outer container having a first end and a second end and defining an inner cavity. The assembly further includes a plunging assembly configured to be received within the outer container inner cavity. The assembly further includes a lid assembly configured for attachment to the outer container first end, wherein the lid assembly includes a handle that is positionable for closing a drinking portion of the lid assembly.

"In accordance with another embodiment of the present disclosure, a container assembly is provided. The assembly generally includes an outer container having a first end and a second end and defining an inner cavity, and a lid assembly configured for attachment to the outer container first end, wherein the lid assembly includes a handle that is positionable for closing a drinking portion of the lid assembly.

"In any of the embodiments described herein, the outer container may have a first open end and a second closed end.

"In any of the embodiments described herein, the outer container may have a substantially cylindrical outer wall defining the inner cavity.

"In any of the embodiments described herein, the inner sleeve may have a substantially cylindrical outer wall.

"In any of the embodiments described herein, the inner cavity of the outer container and the inner sleeve of the plunging assembly may be concentric with one another.

"In any of the embodiments described herein, the plunging assembly may be configured to nest in the inner cavity of the outer container.

"In any of the embodiments described herein, the filtration assembly may include a filter selected from the group consisting of screens, sieve filters, granular-activated carbon filters, metallic alloy filters, microporous ceramic filters, a carbon block resin filters, electrostatic nanofiber filters, reverse osmosis filters, ion exchange filters, light filters, hollow fiber membrane filters, and ultra-filtration membrane filters.

"In any of the embodiments described herein, the filtration assembly may include a device for pressure release.

"In any of the embodiments described herein, the device for pressure release may include a floating seal.

"In any of the embodiments described herein, the floating seal may be received within an annular space along the outer perimeter of the filtration assembly.

"In any of the embodiments described herein, the floating seal may include a floating portion and a non-floating portion.

"In any of the embodiments described herein, the device for pressure release may include a pressure release valve.

"In any of the embodiments described herein, the device for pressure release may be configured to maintain a seal when the plunging assembly is being inserted into the outer container.

"In any of the embodiments described herein, the device for pressure release may be configured to release the seal when the plunging assembly is being removed from the outer container.

"In any of the embodiments described herein, the plunging assembly may include a collar assembly for interfacing with the outer container.

"In any of the embodiments described herein, the collar assembly may be configured to create an interference fit between the plunging assembly and the outer container.

"In any of the embodiments described herein, the collar assembly may include a seal and a collar.

"In any of the embodiments described herein, the collar assembly may be configured to engage with a plurality of depressions in the outer wall of the inner sleeve.

"In any of the embodiments described herein, the filtration assembly may be releasably coupled to the inner sleeve at the second end.

"In any of the embodiments described herein, the filtration assembly and the inner sleeve may be releasably coupled by a threaded connection.

"In any of the embodiments described herein, the inner sleeve may include threads at the second end.

"In any of the embodiments described herein, the filtration assembly may include a housing having threads on the outer perimeter of the housing.

"In any of the embodiments described herein, the filtration assembly may include a housing having threads extending from the filtration assembly.

"In any of the embodiments described herein, the filtration container assembly may further include a filter lock configured for lockingly engaging the filtration assembly and the inner sleeve.

"In any of the embodiments described herein, the filter lock may disengage when a grip portion is pulled away from the outer surface of the outer wall of the inner sleeve.

"In any of the embodiments described herein, the filtration container assembly may further include a lid assembly configured for attachment to the first end of the outer container.

"In any of the embodiments described herein, the lid assembly may include a plurality of grooves configured for coupling with a plurality of extensions on the inner surface of the inner bore of the inner sleeve.

"In any of the embodiments described herein, the lid assembly may be rotatably couplable with the outer container.

"In any of the embodiments described herein, the lid assembly may include a handle that is positionable in a first position for closing a drinking portion of the lid assembly.

"In any of the embodiments described herein, the lid assembly handle may be positionable in a second position for depressing a valve to allow air entry into the outer container.

"In any of the embodiments described herein, the lid assembly may include a planar exterior surface selected from the group consisting of substantially perpendicular to a central axis of the filtration container assembly and tilted relative to substantially perpendicular.

DESCRIPTION OF THE DRAWINGS

"The foregoing aspects and many of the attendant advantages of this disclosure will become more readily appreciated as the same become better understood by reference to the following detailed description, when taken in conjunction with the accompanying drawings, wherein:

"FIG. 1 is an isometric view of a filtration container assembly in accordance with one embodiment of the present disclosure;

"FIG. 2 is an exploded view of the filtration container assembly of FIG. 1;

"FIG. 3 is a cross-sectional view of the filtration container assembly of FIG. 1;

"FIG. 4 is an exploded view of the plunging assembly shown in the exploded view of the filtration container assembly of FIG. 2;

"FIG. 5 is an exploded, view of the filtration assembly shown in the exploded view of the filtration container assembly of FIG. 2;

"FIGS. 6-11 are various views of the lid assembly shown in the exploded view of the filtration container assembly of FIG. 2;

"FIGS. 12A-12D are cross-sectional views of the filtration container assembly of FIG. 1, showing various stages of the filtration process;

"FIGS. 13-16B are cross-sectional and exploded, views of a filtration assembly in accordance with another embodiment of the present disclosure;

"FIGS. 17-19 are various views of a lid assembly in accordance with another embodiment of the present disclosure; and

"FIGS. 20-27 are various views of a filtration assembly in accordance with yet another embodiment of the present disclosure."

For additional information on this patent application, see: Weston, Nancie; Merrigan, Travis; Bargiel, Michael. Filtration Container Assemblies and Methods. Filed June 25, 2013 and posted January 16, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=5167&p=104&f=G&l=50&d=PG01&S1=20140109.PD.&OS=PD/20140109&RS=PD/20140109

Keywords for this news article include: Grayl Inc.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


For more stories covering the world of technology, please see HispanicBusiness' Tech Channel



Source: Politics & Government Week


Story Tools