News Column

"Insulating" in Patent Application Approval Process

August 29, 2014



By a News Reporter-Staff News Editor at Health & Medicine Week -- A patent application by the inventors Egoyants, Petr (St. Petersburg, RU); Fimin, Pavel (St. Petersburg, RU); Volobuev, Dmitry (St. Petersburg, RU); Abramov, Oleg (St. Petersburg, RU), filed on August 24, 2012, was made available online on August 14, 2014, according to news reporting originating from Washington, D.C., by NewsRx correspondents (see also British American Tobacco (investments) Limited).

This patent application is assigned to British American Tobacco (investments) Limited.

The following quote was obtained by the news editors from the background information supplied by the inventors: "Smoking articles such as cigarettes and cigars burn tobacco during use to create tobacco smoke. Attempts have been made to provide alternatives to these smoking articles by creating products which release compounds without creating tobacco smoke. Examples of such products are so-called heat-not-burn products which release compounds by heating, but not burning, tobacco.

"The invention aims to provide an improved apparatus and method for heating tobacco, which can be used in a heat-not-burn device."

In addition to the background information obtained for this patent application, NewsRx journalists also obtained the inventors' summary information for this patent application: "According to the invention, there is provided thermal insulation comprising: a boundary comprising a first boundary section, a second boundary section and a third boundary section which connects the first and second boundary sections together; and an internal insulating region inside the boundary and configured to thermally insulate the first boundary section from the second boundary section; wherein the third boundary section follows an indirect path between the first and second boundary sections.

"The internal insulating region may have a lower pressure than a pressure at the exterior of the boundary.

"The first boundary section may be substantially opposite the second boundary section.

"The third boundary section may extend between the first boundary section and the second boundary section at an edge of the insulation.

"The third boundary section may extend between an edge of the first boundary section and an edge of the second boundary section.

"A thermal conductivity of the third boundary section may be higher than a thermal conductivity of the internal insulating region.

"The indirect path may comprise a non-straight path.

"The indirect path may comprise a winding path comprising a plurality of bends.

"Sequential ones of the bends may alternate in direction.

"The boundary may comprise a wall and the boundary sections may comprise sections of the wall.

"The wall may comprise a metallic wall.

"Wall sections either side of the internal insulating region may converge to a sealed gas outlet.

"Said wall sections may converge in an end region of the insulation.

"A thickness of the insulation may be less than approximately 1 mm.

"A thickness of the insulation may be less than approximately 0.1 mm.

"A thickness of the insulation may be between approximately 1 mm and 0.001 mm.

"The wall may have a thickness of at least approximately 100 microns.

"A pressure in the internal insulating region may be between approximately 0.1 and approximately 0.001 mbar.

"According to the invention, there may be provided an apparatus comprising a heater configured to heat smokable material to volatilize at least one component of the smokable material, and the insulation recited above configured to thermally insulate the apparatus.

"The first boundary section may be closer to the heater than the second boundary section, the second boundary section being separated from the heater by the internal insulating region.

"The apparatus may comprise a smokable material heating chamber located between the heater and the insulation.

"The heater may be elongate and may extend along a longitudinal axis of a housing of the apparatus.

"The insulation may be located co-axially around the heater.

"The apparatus may be configured to heat the smokable material without combusting the smokable material.

"The third boundary section may extend beyond an end of the heater.

"According to an aspect of the invention, there is provided an apparatus configured to heat smokable material to volatilize at least one component of the smokable material, comprising an infra-red heater.

"The infra-red heater may comprise a halogen infra-red heater.

"For exemplary purposes only, embodiments of the invention are described below with reference to the accompanying figures in which:

BRIEF DESCRIPTION OF THE FIGURES

"FIG. 1 is a perspective, partially cut-away illustration of an apparatus configured to heat smokable material to release aromatic compounds and/or nicotine from the smokable material;

"FIG. 2 is a perspective, partially cut-away illustration of an apparatus configured to heat smokable material, in which the smokable material is provided around an elongate ceramic heater divided into radial heating sections;

"FIG. 3 is an exploded, partially cut-away view of an apparatus configured to heat smokable material, in which the smokable material is provided around an elongate ceramic heater divided into radial heating sections;

"FIG. 4 is a perspective, partially cut-away illustration of an apparatus configured to heat smokable material, in which the smokable material is provided around an elongate infra-red heater;

"FIG. 5 is an exploded, partially cut-away illustration of an apparatus configured to heat smokable material, in which the smokable material is provided around an elongate infra-red heater;

"FIG. 6 is a schematic illustration of part of an apparatus configured to heat smokable material, in which the smokable material is provided around a plurality of longitudinal, elongate heating sections spaced around a central longitudinal axis;

"FIG. 7 is a perspective illustration of part of an apparatus configured to heat smokable material, in which the regions of smokable material are provided between pairs of upstanding heating plates;

"FIG. 8 is a perspective illustration of the apparatus shown in FIG. 7, in which an external housing is additionally illustrated;

"FIG. 9 is an exploded view of part of an apparatus configured to heat smokable material, in which the regions of smokable material are provided between pairs of upstanding heating plates;

"FIG. 10 is a flow diagram showing a method of activating heating regions and opening and closing heating chamber valves during puffing;

"FIG. 11 is a schematic illustration of a gaseous flow through an apparatus configured to heat smokable material;

"FIG. 12 is a graphical illustration of a heating pattern which can be used to heat smokable material using a heater;

"FIG. 13 is a schematic illustration of a smokable material compressor configured to compress smokable material during heating;

"FIG. 14 is a schematic illustration of a smokable material expander configured to expand smokable material during puffing;

"FIG. 15 is a flow diagram showing a method of compressing smokable material during heating and expanding the smokable material for puffing;

"FIG. 16 is a schematic, cross-sectional illustration of a section of vacuum insulation configured to insulate heated smokable material from heat loss;

"FIG. 17 is another schematic, cross-sectional illustration of a section of vacuum insulation configured to insulate heated smokable material from heat loss;

"FIG. 18 is a schematic, cross-sectional illustration of a heat resistive thermal bridge which follows an indirect path from a higher temperature insulation wall to a lower temperature insulation wall;

"FIG. 19 is a schematic, cross-sectional illustration of a heat shield and a heat-transparent window which are moveable relative to a body of smokable material to selectively allow thermal energy to be transmitted to different sections of the smokable material through the window;

"FIG. 20 is schematic, cross sectional illustration of part of an apparatus configured to heat smokable material, in which a heating chamber is hermetically sealable by check valves;

"FIG. 21 is a schematic, cross sectional illustration of an apparatus configured to heat smokable material, in which a heater is located externally of a heating chamber and internally of thermal insulation; and

"FIG. 22 is a schematic, cross sectional illustration of a partial section of deep-vacuum insulation configured to thermally insulate an apparatus configured to heat smokable material."

URL and more information on this patent application, see: Egoyants, Petr; Fimin, Pavel; Volobuev, Dmitry; Abramov, Oleg. Insulating. Filed August 24, 2012 and posted August 14, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=7139&p=143&f=G&l=50&d=PG01&S1=20140807.PD.&OS=PD/20140807&RS=PD/20140807

Keywords for this news article include: Smoking, Investment and Finance, British American Tobacco (investments) Limited.

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


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Source: Health & Medicine Week


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