US20030127475A1 - Thermoinsulating knapsack - Google Patents

Thermoinsulating knapsack Download PDF

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Publication number
US20030127475A1
US20030127475A1 US10/369,068 US36906803A US2003127475A1 US 20030127475 A1 US20030127475 A1 US 20030127475A1 US 36906803 A US36906803 A US 36906803A US 2003127475 A1 US2003127475 A1 US 2003127475A1
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US
United States
Prior art keywords
thermoinsulating
knapsack
container
knapsack according
panels
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/369,068
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English (en)
Inventor
Paolo Manini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAES Getters SpA
Original Assignee
SAES Getters SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SAES Getters SpA filed Critical SAES Getters SpA
Assigned to SAES GETTERS S.P.A. reassignment SAES GETTERS S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MANINI, PAOLO
Publication of US20030127475A1 publication Critical patent/US20030127475A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/16—Water-bottles; Mess-tins; Cups
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/04—Sacks or packs carried on the body by means of two straps passing over the two shoulders
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/16—Water-bottles; Mess-tins; Cups
    • A45F3/20—Water-bottles; Mess-tins; Cups of flexible material; Collapsible or stackable cups
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/14—Insulation with respect to heat using subatmospheric pressure

Definitions

  • the present invention relates to a knapsack for sportsmen, suitable for carrying water or other beverages while maintaining constant their temperature and for drinking said beverages without having to take the knapsack off
  • a knapsack which internally comprises a container for a beverage.
  • Said container is provided with a thin tube through which the beverage can be sorbed by the sportsman, so that he can drink without having to stop his activity.
  • the knapsack can be thermally insulated by means of fibrous insulators, such as glass wool or rock wool.
  • thermoinsulating evacuated panels of the known type for example those formed of a board of open-cells polymeric foam contained in an evacuated envelope.
  • these panels are rigid and can be with difficulty adjusted to the walls of the knapsack that preferably has an anatomical and optionally non-rigid shape, with a higher volume when it is filled of the beverage and a progressively decreasing volume when the beverage is consumed.
  • said envelope since a substantial requirement of said envelope is a high gas-tightness, it is formed of barrier sheets containing aluminum layers which confer to the envelope itself a certain fragility. Therefore, said panels should be placed inside a preferably rigid protective structure in order to avoid the cracking of the envelopes which would compromise the thermal insulation properties of the panels.
  • thermoinsulating knapsack which is free from the above mentioned drawbacks. Said object is achieved by means of a thermoinsulating knapsack whose main features are specified in the first claim and other features are specified in the following claims.
  • the panels used for the thermal insulation of the knapsack according to the present invention employ, as a filling material, a powder of an inert material having average particle size lower than 100 nanometers (nm) and preferably comprised between about 2 and 20 nanometers, It has been found that by the use of these powders, the thermal conductance of the panels varies only slightly, and particularly remains lower than about 8 mW/m ⁇ K, for internal pressures up to a few tens of unbar, differently from the panels based on polymeric foams wherein the thermal conductance grows rapidly when the internal pressure is higher than about 1 mbar.
  • evacuated panels which can be bent or curved, so that they can be adapted to the anatomical shape of the knapsack inside which they have to be inserted, as well as to the eventual variations of shape and volume of the container when it is filled or emptied of the beverage.
  • the evacuated panels used for the thermoinsulating knapsack according to the present invention are more solid than the known panels based on polymeric foams and can be placed inside the same knapsack without providing a protective structure suitable for preventing the accidental cracking of the envelopes.
  • the inert material of the powder is silica preferably mixed with numeral fibers, so that it can be easily compressed in order to make blocks of even a few millimeter thickness, which can be placed in an envelope, evacuated and subsequently curved with relative ease.
  • FIG. 1 shows a perspective view of the complete thermoinsulating knapsack according to said embodiment
  • FIG. 2 shows a perspective view of the knapsack of FIG. 1 from which the external sack has been removed.
  • a container 3 made of a liquid-tight material, suitable for containing water or another refreshing beverage Said container is completely closed with the exception of a small upper opening suitable for enabling the coining out of the drink by means of a small tube 4 having the function of a straw.
  • a small tube 4 having the function of a straw.
  • the container 3 is formed of an envelope made of a flexible material, for instance plastic sheets, but the use of any other material known for containing alimentary beverages can be involved in other embodiments.
  • Tube 4 can be fastened at the central portion thereof to one of the straps 2 so that it is always within the reach of the sportsman.
  • two evacuated, slightly curved panels 5 and 6 are shown to be positioned externally of container 3 .
  • Said panels are arranged side by side so that together they form a substantially tubular body whose cavity is occupied by container 3 .
  • the two evacuated panels 5 and 6 can be fastened to one another by gluing or welding in pairs their lateral flanges.
  • Evacuated panels 5 and 6 have a thickness comprised for example between 4 and 15 mm and are formed of an envelope of a laminated plastic, optionally metallized, wherein a very fine powder of an inert material is enclosed, particularly silica.
  • the plastic material used for the envelope can be any known material which is considered to be suitable for the construction of evacuated panels of traditional type, for example a polyolefin.
  • the pressure inside the envelope is lower than 50 mbar, whereas the silica powder is preferably mixed to with mineral fibers, particularly glass fiber.
  • the silica is preferably pyrogenic silica, a form of silica which is obtained by burning SiCl 4 with oxygen in a suitable chamber, according to the reaction:
  • the silica produced in this reaction is in the form of particles of size comprised between a few nanometers and a few tens of nanometers, which can optionally be agglomerated to form particles of bigger size, as previously described.
  • Pyrogenic silica is produced and sold for instance by the US company CABOT Corp. under the name Nanogel® or by the German company Wacker GmbH.
  • the internal space of the sack 1 is completely occupied by container 3 and by insulating panels 5 and 6 placed around it, but in other embodiments said sack 1 could be provided with more compartments and lateral pockets so as to serve for the transportation of other objects or food, further to the beverage.

Landscapes

  • Packages (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Portable Outdoor Equipment (AREA)
  • Thermal Insulation (AREA)
  • Thermally Insulated Containers For Foods (AREA)
  • Devices For Warming Or Keeping Food Or Tableware Hot (AREA)
  • Catching Or Destruction (AREA)
US10/369,068 2000-08-23 2003-02-19 Thermoinsulating knapsack Abandoned US20030127475A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI2000A001902 2000-08-23
IT2000MI001902A IT1318684B1 (it) 2000-08-23 2000-08-23 Zaino termoisolante.
PCT/IT2001/000398 WO2002015737A1 (en) 2000-08-23 2001-07-25 Thermoinsulating knapsack

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2001/000398 Continuation WO2002015737A1 (en) 2000-08-23 2001-07-25 Thermoinsulating knapsack

Publications (1)

Publication Number Publication Date
US20030127475A1 true US20030127475A1 (en) 2003-07-10

Family

ID=11445728

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/369,068 Abandoned US20030127475A1 (en) 2000-08-23 2003-02-19 Thermoinsulating knapsack

Country Status (10)

Country Link
US (1) US20030127475A1 (ja)
EP (1) EP1311172A1 (ja)
JP (1) JP2004506461A (ja)
KR (1) KR20030024902A (ja)
CN (1) CN1447661A (ja)
AU (1) AU2001277691A1 (ja)
CA (1) CA2415776A1 (ja)
IT (1) IT1318684B1 (ja)
TW (1) TW510783B (ja)
WO (1) WO2002015737A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070051759A1 (en) * 2003-07-25 2007-03-08 Jon Grant Drinking fluid carriers
US20100112278A1 (en) * 2008-10-31 2010-05-06 Sabic Innovative Plastics Ip B.V. Multiwall sheet, an article, a method of making a multiwall sheet
US20110101050A1 (en) * 2009-11-04 2011-05-05 Parazynski Scott E Apparatus and methods for fluid storage and delivery
US20130017361A1 (en) * 2011-07-12 2013-01-17 Sabic Innovative Plastics Ip B.V. Multiwall sheet, methods of making, and articles comprising the multiwall sheet

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013063402A1 (en) * 2011-10-27 2013-05-02 Greif Flexibles Trading Holding B.V. Portable water backpack
ES2499116B1 (es) * 2013-03-26 2015-07-02 Fº JAVIER PORRAS VILA Tubo portátil de agua, para deportistas

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4636415A (en) * 1985-02-08 1987-01-13 General Electric Company Precipitated silica insulation
US5085349A (en) * 1990-02-08 1992-02-04 Fawcett Roger R Resilient valve and dispensing system for bicyclists
US5106520A (en) * 1985-11-22 1992-04-21 The University Of Dayton Dry powder mixes comprising phase change materials
US5399397A (en) * 1993-04-21 1995-03-21 Martin Marietta Energy Systems, Inc. Calcium silicate insulation structure
US5465885A (en) * 1994-04-25 1995-11-14 Wyatt; William R. Insulated backpack with drinking liquid container
US5975387A (en) * 1997-07-11 1999-11-02 K 2 Corporation Bladder frame backpack
US6192703B1 (en) * 1996-06-12 2001-02-27 Vacupanel, Inc. Insulating vacuum panel, method for manufacturing the insulated vacuum panel and insulated containers employing such panel
US20020113101A1 (en) * 2000-09-01 2002-08-22 Jeff Skillern Hydration pouch with integral thermal medium

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2755159B1 (fr) * 1996-10-28 1999-01-15 Panhelleux Gerard Marcel Patri Panneau isolant autoportant

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4636415A (en) * 1985-02-08 1987-01-13 General Electric Company Precipitated silica insulation
US5106520A (en) * 1985-11-22 1992-04-21 The University Of Dayton Dry powder mixes comprising phase change materials
US5085349A (en) * 1990-02-08 1992-02-04 Fawcett Roger R Resilient valve and dispensing system for bicyclists
US5399397A (en) * 1993-04-21 1995-03-21 Martin Marietta Energy Systems, Inc. Calcium silicate insulation structure
US5465885A (en) * 1994-04-25 1995-11-14 Wyatt; William R. Insulated backpack with drinking liquid container
US6192703B1 (en) * 1996-06-12 2001-02-27 Vacupanel, Inc. Insulating vacuum panel, method for manufacturing the insulated vacuum panel and insulated containers employing such panel
US5975387A (en) * 1997-07-11 1999-11-02 K 2 Corporation Bladder frame backpack
US20020113101A1 (en) * 2000-09-01 2002-08-22 Jeff Skillern Hydration pouch with integral thermal medium

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070051759A1 (en) * 2003-07-25 2007-03-08 Jon Grant Drinking fluid carriers
US20100112278A1 (en) * 2008-10-31 2010-05-06 Sabic Innovative Plastics Ip B.V. Multiwall sheet, an article, a method of making a multiwall sheet
US8889248B2 (en) 2008-10-31 2014-11-18 Sabic Global Technologies B.V. Multiwall sheet, an article, a method of making a multiwall sheet
US20110101050A1 (en) * 2009-11-04 2011-05-05 Parazynski Scott E Apparatus and methods for fluid storage and delivery
US8839996B2 (en) * 2009-11-04 2014-09-23 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Apparatus and methods for fluid storage and delivery
US20130017361A1 (en) * 2011-07-12 2013-01-17 Sabic Innovative Plastics Ip B.V. Multiwall sheet, methods of making, and articles comprising the multiwall sheet

Also Published As

Publication number Publication date
IT1318684B1 (it) 2003-08-27
ITMI20001902A0 (it) 2000-08-23
EP1311172A1 (en) 2003-05-21
KR20030024902A (ko) 2003-03-26
WO2002015737A8 (en) 2003-04-10
ITMI20001902A1 (it) 2002-02-23
TW510783B (en) 2002-11-21
CN1447661A (zh) 2003-10-08
WO2002015737A1 (en) 2002-02-28
JP2004506461A (ja) 2004-03-04
CA2415776A1 (en) 2002-02-28
AU2001277691A1 (en) 2002-03-04

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SAES GETTERS S.P.A., ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MANINI, PAOLO;REEL/FRAME:013794/0899

Effective date: 20030114

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION