|Publication number||US2764859 A|
|Publication date||Oct 2, 1956|
|Filing date||Sep 18, 1950|
|Priority date||Sep 18, 1950|
|Publication number||US 2764859 A, US 2764859A, US-A-2764859, US2764859 A, US2764859A|
|Inventors||Norman K Hanselmann|
|Original Assignee||Norman K Hanselmann|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (12), Referenced by (76), Classifications (12)|
|External Links: USPTO, USPTO Assignment, Espacenet|
06L 1956 N. K. HANSELMANN METHOD OF PACKAGING COMPRESSIBLE ARTICLES Filed Sept. 18, 1950 iEIEl IINVENTOR. I A: 45% tZ/f/l/W a-obu United States Paten a.
METHOD OF PACKAGING COMPRESSIBLE ARTICLES Norman K. Hanstlmann, Dayton, Ohio Application September-.18, 1950, Serial No.'185,491
1 Claim. '(CI. 53-22 (Granted under Title 35, U. S. Code (1952), see. 266) The invention described herein may be manufactured and used by or for the vUnitedStatesGoverrnneut for governmental purposes without payment to me of "any royalty thereon.
This invention relates to a method of packaging nonrigid articles which are compressible and which ordinarily are bulky due to the presence of air in the interstices thereof. It is the object of the invention to provide a method of packaging articles of the above described type which results in a great reducion in volume of the article so that it can be stored and transported in a minimum space. It is a further object of the invention to provide a method of packaging compressible articles which in addition to reducing the volume of the article also permits the article to be molded into various shapes so as to permit storage thereof in irregular spaces with efiicient utilization of space. It is a still further object of the invention to provide a method of packaging capable of attaining the above results which at the same time is simple, cheap and requires a minimum of equipment and apparatus.
Briefly the method consists in placing the article in a bag or non-rigid container made of a gastight plastic film, sealing the container, and then evacuating the container to as low a pressure as possible. The resulting removal of air from the interstices of the article permits the outside air pressure to compress the containerand its contents to a minimum volume. If the evacuation is carried out slowly the container and its contents may be molded into a variety of shapes or molded to fit the space in which it is desired to store the article.
A more complete description of the process will be given in connection with the accompanying drawings in which:
Fig. 1 shows typical apparatus for vacuum packaging compressible articles in accordance with the invention.
Fig. 2 shows the general appearance of the article in Fig. 1 after vacuum packaging.
Figs. 3 and 4 show the method of molding the article during evacuation to fit a storage container.
Fig. 5 shows a suitable valve for use in evacuating the container, and
Figs. 6 and 7 show an alternative method of sealing the container after evacuation.
As already stated an article to be vacuum packaged in accordance with the invention must be non-rigid and have a compressible structure of the type that entrains a large amount of removable air. Referring to Fig. 1 such an article is placed in container 1 which is then sealed along edge 2. The container 1 must be made of a non-rigid or plastic material so that it can readily conform to the shape of the contained article. The material of which the container is made must also be practically impervious to gases and the necessary seals must be gas tight. A valve and nipple 3, which may be the commercially available type shown in Fig. 5 for example, is provided in the container to permit the connection of a hose 4 between the vacuum pump 5 and the container 1 5 pressure reduced the atmospheric pressure external thereto compresses the container and its contents. When the 2,764,859 l atent ed Qct- 5 ice for evacuation'o'f the latter. A manometer 10 or other suitable pressure indicating device may be connected to the-hose '4 to indicate the pressure in the container.
Asthe air isremove'd from the container and'the inside pressure inthe container has been reduced to substantially;'zero thevalve 3 is closed and the pump disconnec'ted. After "substantially complete evacuation the containerand its contents are a solid high density mass, as represented in Fig. 2, having a volume much less than that of the article before packaging. volume achieved depends of course upon "the" nature of the article: Bulky non-ri id articles having sunny 'interior structure of I OWjdCHSltY permit th'e greatest reduction volume a 'd may be vacuum packed with great advan- M tandpoint'fofspace' saving. If it is-desi'reg-f mold the package into a desiredshap'e a form 6 such as shown in Figs. 3 and 4 may be used. The package is placed in the form before evacuation, as shown in Fig. 3, and evacuated while in the form. When completely evacuated the package forms a rigid unyielding mass, however, during evacuation and before the pressure is reduced to a very low level the mass is pliable and may be made to conform to the shape of the form by the application of external force. This force may be applied directly to the mass by the hands or by the use of a suitable implement. In Figs. 3 and 4 the form is shown as rectangular, however it may take any desired configuration." Such forms may be used to advantage to premold a package into an irregular shape so that it may be fitted into a similar irregularly shaped storag space. ing process.
In general vinyl plastic film having a thickness of about .012" is a very satisfactory material for the container 1, since it is highly impervious to gases and moisture and is easily sealed. However vinyl plastic has the disadvantage that it becomes brittle at extremely low temperatures. In cases where the package is to be subjected to low temperatures, polyethylene film has been found suitable since it remains pliable at such temperatures. Polyethylene however does not form as good a barrier against gases and moisture as the vinyl plastic film and therefore when polyethylene is used it has been found advisable to use a composite film consisting of an inner layer of polyethylene, a layer of metal foil and an outer layer .of scrim or other protective fabric.
Instead of using a valve of the type shown in Fig. 5 the arrangement shown in Figs. 6 and 7 may be used. The container 1 is fitted with a plastic tube 7 through which a hollow rigid tube 8, attached to hose 4, may be inserted for withdrawing the air from the container. After evacuation is complete the tube 8 is partly withdrawn and the plastic tub 7' sealed as at 9 in Fig. 7.
The excess length of tube 7'may then be out OK if desired.
The above described process of vacuum'pack-aging is particularly useful in military survival kits. Such kits for use in cold climates or in the arctic regions contain a sleeping bag as well as certain other articles of clothing for protection against the extreme cold. These survival The reduction in Slow evacuation is best during the moldvolume can be reduced from '40 to 50 percent below the minimum volume that can be attained by ordinary methods of packing. One particular instance in which vacuum packaging is highly advantageous is in the case 'of the survival kit packed in a fighter pilots contour seat of the ejectable type. In this case the sleeping bag is premolded, as explained in connection with Figs. 3 and 4, to fit the contour of the seat so that in packing it. against the seat a very efl'lcient utilization of space is obtained. The mold of cours would be shaped in this case to conform to the configuration of the seat. No appreciable impairment of the heat insulating properties of sleeping bags and clothing as a result of vacuum packaging has been found.
The method of packaging, reducing the volume of and molding intov a desired form a non-rigid article of the type that normally contains throughout its structure a relatively large amount of removable interstitial air, said method comprising the steps of placing said article in a non-rigid, gas impervious container, sealing said container, placing said sealed container in a mold having the shape that it is desired to impart to the package, slowly evacuating said container to substantially zero pressure, and forcing said container into contact with the surface of the mold during evacuation.
References Cited in the file of this patent UNITED STATES PATENTS 1,003,114 Kirchhofi L Sept. 12, 1911 1,207,814 Stockton Dec. 12, 1916 1,970,193 Riebel Q Aug. 14, 1934 2,335,738 Casey Nov. 30, 1943 2,354,186 Donahue July 25, 1944 2,472,754 Mead June 7, 1949 2,488,922 Mead Nov. 22, 1949 2,554,841 Rumsey May 29, 1951 2,559,368 Pancratz July 3, 1951 2,576,322 Waters Nov. 27, 1951 2,638,263 Iesnig May 12, 1953 2,700,459 Anspacher Ian. 25, 1955
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US1003114 *||Jul 5, 1906||Sep 12, 1911||James W Kirchhoff||Method of compressing or baling cotton, wool, silk. &c.|
|US1207814 *||Aug 14, 1915||Dec 12, 1916||Frank W Stockton||Method for preserving tennis-balls or other objects containing fluid under pressure.|
|US1970193 *||Apr 28, 1932||Aug 14, 1934||Air Way Electric Appl Corp||Method of packaging|
|US2335738 *||Jul 24, 1940||Nov 30, 1943||Dewey And Almy Chem Comp||Packaging machine|
|US2354186 *||Jan 14, 1942||Jul 25, 1944||Johns Manville||Insulation package|
|US2472754 *||Oct 20, 1945||Jun 7, 1949||Warren J Mead||Method for making and maintaining an impression of the shape of an object|
|US2488922 *||Sep 20, 1944||Nov 22, 1949||Warren J Mead||Method for making impressions of objects|
|US2554841 *||Jul 13, 1948||May 29, 1951||Rumsey Jr Herbert||Package|
|US2559368 *||May 12, 1947||Jul 3, 1951||Pancratz Frank J||Bag forming and sealing machine|
|US2576322 *||Jul 5, 1947||Nov 27, 1951||Waters Harry F||Bag with vacuum sealed valve closure|
|US2638263 *||May 20, 1949||May 12, 1953||Duo Vent Vacuum Closure Compan||Flexible bag for vacuum sealing|
|US2700459 *||May 27, 1949||Jan 25, 1955||Edgar Anspacher||Mattress package and method of wrapping|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3026609 *||Oct 8, 1959||Mar 27, 1962||Carl N Beetle Plastics Corp||Filter method|
|US3118554 *||Mar 23, 1959||Jan 21, 1964||Hyster Co||Vacuum handling apparatus|
|US3211322 *||Mar 18, 1963||Oct 12, 1965||Rodger D Collons||Container and closure therefor|
|US3238599 *||Feb 27, 1964||Mar 8, 1966||Dow Chemical Co||Padding method|
|US3246443 *||Sep 7, 1961||Apr 19, 1966||Gen Tire & Rubber Co||Foam cushion material packaging|
|US3307319 *||Aug 12, 1963||Mar 7, 1967||Standard Electric Company Inc||Method of vacuum packaging air filter materials|
|US3537226 *||Oct 27, 1967||Nov 3, 1970||Du Pont||Process of packaging batts of fibers|
|US3541752 *||Jun 7, 1968||Nov 24, 1970||Ness Irving||Packaging of compressible goods|
|US3958693 *||Jan 20, 1975||May 25, 1976||E-Z-Em Company Inc.||Vacuum X-ray envelope|
|US4184237 *||Aug 31, 1978||Jan 22, 1980||Sofisti-Caire Furniture Mfg. Inc.||Method of making a cushion construction|
|US4996848 *||Sep 28, 1989||Mar 5, 1991||Whirlpool Corporation||Method and apparatus for recovering refrigerants from home refrigeration systems|
|US5172629 *||Jul 29, 1991||Dec 22, 1992||Novapak, Inc.||Method and apparatus for compression packaging|
|US5293756 *||Feb 26, 1991||Mar 15, 1994||Whirlpool Corporation||Method and apparatus for recovering refrigerants from home refrigeration systems|
|US5392610 *||Dec 2, 1993||Feb 28, 1995||Whirlpool Corporation||Method and apparatus for recovering refrigerants from home refrigeration systems|
|US5878551 *||Oct 28, 1997||Mar 9, 1999||Lazy Pet Products||Full recovery reduced volume packaging system|
|US6070397 *||Apr 17, 1998||Jun 6, 2000||Bachhuber; Michael W.||Self sealing storage system and patch thereof|
|US6952906 *||Sep 15, 2003||Oct 11, 2005||Lovesac Corporation||Packaged furniture assembly and method thereof for compressible furniture|
|US7150354||Mar 10, 2005||Dec 19, 2006||Diaperoos, Llc||Vacuum-packed diaper feeding kit|
|US7178312||Mar 31, 2005||Feb 20, 2007||Diaperoos, Llc||Pressing and vacuum-packing diaper|
|US7181893||Mar 31, 2005||Feb 27, 2007||Diaperoos, Llc||Vacuum-packing diaper and pressing encasement|
|US7181894||Mar 31, 2005||Feb 27, 2007||Diaperoos, Llc||Pressing and vacuum-sealing diaper in vacuum chamber|
|US7188748||Mar 31, 2005||Mar 13, 2007||Diaperoos, Llc||Vacuum-packed diaper vending machine|
|US7194848||Mar 14, 2005||Mar 27, 2007||Diaperoos, Llc||Diaper kit with miniaturized diaper by folding and vacuum-sealing|
|US7231751||Mar 31, 2005||Jun 19, 2007||Diaperoos, Llc||Packaging diaper with deceptive outward appearance|
|US7387440 *||Feb 4, 2002||Jun 17, 2008||Man Chiu Li||Vacuum storage bag|
|US7478878||Nov 21, 2006||Jan 20, 2009||Oettinger Marc P||Multi-directional, self-righting chair|
|US7631376 *||Jul 28, 2006||Dec 15, 2009||The Coleman Company, Inc.||Expandable sleeping bag storage sack|
|US7698762 *||Dec 8, 2006||Apr 20, 2010||Medline Industries, Inc.||Space saver pillow system and method for making the same|
|US7713180||Jul 15, 2005||May 11, 2010||Icon Ip, Inc.||Partially stabilized exercise device with valve mechanism|
|US7757356 *||Jan 26, 2009||Jul 20, 2010||Barnhardt Manufacturing Company||Vacuum-packed coil and method of packing|
|US7765777 *||Jan 30, 2008||Aug 3, 2010||Waldron Joseph M||Devices for introducing air into, or removing air from, containers|
|US7770733||Oct 29, 2007||Aug 10, 2010||Diaperoos, Llc||Pocket-sized vacuum-packed diapers|
|US7779610||Oct 31, 2007||Aug 24, 2010||Diaperoos, Llc||Method of vacuum packaging a single use disposable diaper|
|US7895815 *||Jul 30, 2010||Mar 1, 2011||Waldron Joseph M||Devices for introducing air into, or removing air from, containers|
|US8069516 *||Mar 1, 2010||Dec 6, 2011||Medline Industries, Inc.||Space saver pillow system and method for making the same|
|US8118166||Dec 31, 2003||Feb 21, 2012||Kimberly-Clark Worldwide, Inc.||Packaging with easy open feature|
|US8387185 *||Oct 26, 2011||Mar 5, 2013||Medline Industries, Inc.||Space saver pillow system and method for making the same|
|US20030151295 *||Feb 11, 2002||Aug 14, 2003||Shawn Nelson||Packaged furniture assembly and method thereof for compressible furniture|
|US20040107675 *||Sep 15, 2003||Jun 10, 2004||Shawn Nelson||Packaged furniture assembly and method thereof for compressible furniture|
|US20040167489 *||Feb 14, 2003||Aug 26, 2004||Kellenberger Stanley R.||Compact absorbent article|
|US20050082193 *||Feb 4, 2002||Apr 21, 2005||Li Man C.||Vacuum storage bag|
|US20060063653 *||Jul 15, 2005||Mar 23, 2006||Wickens Krista M||Partially stabilized exercise device with valve mechanism|
|US20060179794 *||Apr 18, 2006||Aug 17, 2006||Diaperoos, Llc||Carrying vacuum-packaged diaper in pocket on person|
|US20060206078 *||Jun 1, 2006||Sep 14, 2006||Diaperoos, Llc||Vacuum-Packaged Diaper|
|US20060206080 *||Jun 1, 2006||Sep 14, 2006||Diaperoos, Llc||Vacuum-Packaged Absorbent Article|
|US20060206081 *||Jun 1, 2006||Sep 14, 2006||Diaperoos, Llc||Vacuum-Packaging Diaper|
|US20060206082 *||Jun 1, 2006||Sep 14, 2006||Diaperoos, Llc||Vacuum-Packaging Diaper in Normal Condition|
|US20060231429 *||Jun 25, 2006||Oct 19, 2006||Diaperoos, Llc||Infant care kit including diaper|
|US20060260047 *||Jul 28, 2006||Nov 23, 2006||The Coleman Company, Inc.||Expandable sleeping bag storage sack|
|US20070107382 *||Dec 30, 2006||May 17, 2007||Diaperoos, Llc||Folding and vacuum-sealing diaper with diaper accessory|
|US20070107383 *||Dec 30, 2006||May 17, 2007||Diaperoos, Llc||Container having diaper accessory and miniaturized diaper|
|US20070130886 *||Dec 30, 2006||Jun 14, 2007||Diaperoos, Llc||Miniaturizing diaper by folding and vacuum-sealing|
|US20070138850 *||Nov 21, 2006||Jun 21, 2007||Oettinger Marc P||Multi-directional, self-righting chair|
|US20080115459 *||Nov 22, 2006||May 22, 2008||Barnhardt Manufacturing Company||Vacuum-packed coil and method of packing|
|US20080128295 *||Oct 29, 2007||Jun 5, 2008||Diaperoos, Llc||Package having vacuum packed absorbent article and methods thereof|
|US20080134639 *||Oct 30, 2007||Jun 12, 2008||Nadia Corlett||Vacuum-packaged diaper apparatus and methods|
|US20080142389 *||Oct 31, 2007||Jun 19, 2008||Diaperoos, Llc||Package having vacuum packed absorbent article and methods thereof|
|US20080142390 *||Oct 31, 2007||Jun 19, 2008||Diaperoos, Llc||Package having vacuum packed absorbent article and methods thereof|
|US20080179557 *||Jan 30, 2008||Jul 31, 2008||Waldron Joseph M||Devices and Methods for Introducing Air Into, or Removing Air From, Containers|
|US20080197038 *||Oct 31, 2007||Aug 21, 2008||Diaperoos, Llc||Package having vacuum packed absorbent article and methods thereof|
|US20090084073 *||Jul 28, 2008||Apr 2, 2009||Nadia Corlett||Compact and portable individually packaged training pants for use in intimate absorption of body fluid|
|US20090133365 *||Jan 26, 2009||May 28, 2009||Barnhardt Manufacturing Company||Vacuum-packed coil and method of packing|
|US20090301034 *||Jun 9, 2009||Dec 10, 2009||Avery Dennison Corporation||Sealed container and method of manufacturing|
|US20100293900 *||Jul 30, 2010||Nov 25, 2010||Waldron Joseph M||Devices and Method for Introducing Air Into, or Removing Air From, Containers|
|US20110064332 *||Sep 15, 2010||Mar 17, 2011||Piazza John A||Environmentally friendly textile soft goods retail packaging incorporating vacuum-sealable bags reusable by consumers|
|US20110290816 *||Feb 18, 2011||Dec 1, 2011||Waldron Joseph M||Devices and method for introducing air into, or removing air from, containers|
|US20140182247 *||Jan 29, 2014||Jul 3, 2014||Eastman Chemical Company||Packages, packaging systems, methods for packaging and apparatus for packaging|
|USRE30045 *||Dec 22, 1976||Jul 17, 1979||E-Z-Em Company, Inc.||Vacuum X-ray envelope|
|DE2611131A1 *||Mar 17, 1976||Sep 30, 1976||Tex Innovation Ab||Vorrichtung zum evakuieren von verpackungen aus weichem, luftdichtem werkstoff|
|DE202009018736U1||Nov 24, 2009||Mar 14, 2013||Axel Weber||Verpackungsprodukteinheit, Automat mit einer Verpackungsprodukteinheit|
|EP0989059A1 *||Sep 10, 1998||Mar 29, 2000||Gerrit Jan Vink||Device for compressing bulky materials by way of vacuum method|
|EP2138644A3 *||Jun 17, 2009||Jul 25, 2012||Berthold Vosshenrich||Heat insulation mat and device for its production|
|WO1991008955A1 *||Dec 13, 1990||Jun 27, 1991||Wayne Mark Merry||Method and apparatus for compression packaging|
|WO1991017326A1 *||Apr 24, 1991||Nov 14, 1991||Walter Lindal||Compressible thermal insulation batts sealed in waterproof bags for building construction|
|WO2008095218A2 *||Feb 7, 2008||Aug 14, 2008||Huhhot Chi-Che Euro Technic Gmbh||Method for processing sand and intermediate product obtained by this method|
|WO2008095218A3 *||Feb 7, 2008||Sep 25, 2008||Huhhot Chi Che Euro Technic Gmbh||Method for processing sand and intermediate product obtained by this method|
|U.S. Classification||53/434, 100/258.00A, 29/91.1, 29/DIG.440, 53/436|
|International Classification||B65B1/26, B65B63/02|
|Cooperative Classification||Y10S29/044, B65B63/028, B65B1/26|
|European Classification||B65B63/02P, B65B1/26|