US20090223174A1 - System, air valve assembly and method for air evacuation of plastic sealable storage bags - Google Patents
System, air valve assembly and method for air evacuation of plastic sealable storage bags Download PDFInfo
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- US20090223174A1 US20090223174A1 US12/074,529 US7452908A US2009223174A1 US 20090223174 A1 US20090223174 A1 US 20090223174A1 US 7452908 A US7452908 A US 7452908A US 2009223174 A1 US2009223174 A1 US 2009223174A1
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- United States
- Prior art keywords
- air
- storage bag
- valve member
- sealing
- housing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
- B65B31/046—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper
- B65B31/047—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper the nozzles co-operating with a check valve in the opening of the container or wrapper
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/3584—Inflatable article [e.g., tire filling chuck and/or stem]
- Y10T137/36—With pressure-responsive pressure-control means
- Y10T137/3646—Co-axial inflation and relief valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/3584—Inflatable article [e.g., tire filling chuck and/or stem]
- Y10T137/374—With cap
Definitions
- This invention relates generally to storage containers of the type for storing food and other items in an airtight vacuum environment, and more particularly to a system for converting conventional plastic storage bags having a sealable opening into one which may be evacuated of air for vacuum storage of food items.
- Sealable plastic storage bags or “baggies” are found in almost every kitchen in America. These inexpensive disposable plastic storage bags are convenient for preserving the freshness of food items and other goods which have a longer shelf life when stored in this manner. However, it is also well known that a completely air evacuated or vacuum environment for these food items and other goods will further enhance the shelf life and ultimate freshness of the contents stored therein.
- U.S. Pat. No. 5,215,445 to Chen discloses a vacuum pump and heat sealer combination device for evacuating air from a thermoplastic bag and sealing food inside the bag. The device is suited for home use and combines a small-scale heat sealer and a small-scale vacuum pump in a battery-powered device.
- Russell teaches a vacuum storage system and method in which a lid closure is punctured, a vacuum pump removes atmospheric gas from the container and the lid is sealed with a valve or thin film held in place by adhesive.
- a method and apparatus for vacuum sealing is discloses in U.S. Pat. No. 7,297,860 to Hughes, et al.
- the device is configured to remove air from zipper-sealed bags and is adapted to communicate with a vacuum source.
- a self-sealing storage bag includes an adhesive patch constructed as part of the bag is taught in U.S. Pat. No. 6,070,397 to Bachhuber.
- Maruscak teaches a household vacuum system for vacuum packing foods in bags in U.S. Pat. No. 4,337,804.
- the system includes a suction tube and needle valve for penetrating the wall of the container.
- U.S. Pat. No. 5,287,680 to Lau discloses a battery-powered, hand-held device for evacuating and sealing a plastic bag and Carcano discloses a device and method for creating a vacuum in food-holding bags in U.S. Pat. No. 5,711,136.
- U.S. Pat. No. 5,873,217 to Smith discloses a vacuum sealing method and article comprising a hand-held vacuum source for evacuating a zipper-type plastic bag and a design patent to Benedict, U.S. Pat. No. D513,924 teaches a hand-held vacuum apparatus.
- U.S. published application US2007/0154118 to Tilman, et al. teaches a polymeric package with resealable closure and valve and methods relation thereto.
- the present invention achieves the longer shelf life benefits for vacuum storage of food stuffs and other items in conjunction with a completely conventional inexpensive plastic storage bag or “baggie” on an economically selective basis which greatly enhances the economy and effectiveness of the application of this broad notion of vacuum sealing.
- An air valve assembly includes an inner valve member and an outer valve member, the inner valve member being positionable within the storage bag and against an inner surface of one flexible panel of the storage bag.
- the inner valve has a tapered piercing spout adapted to pierce through the flexible panel.
- the outer valve member has an outer valve housing positionable and lockingly engagable over the piercing spout as or after the piercing spout has penetrated outwardly through the flexible panel.
- a perimeter edge of the housing is sealingly engagable against the one flexible panel and a mating groove formed into the inner valve member around the piercing spout, the piercing spout having an air outlet in fluid communication with the interior of the storage bag for air evacuation.
- the inner valve member configured for temporary sealing engagement against the inner surface of the one flexible panel as air is removed from the interior of the storage bag out through the air outlet by activation of a vacuum pump through an air outlet of the housing.
- Yet another object of this invention is to provide a system for vacuum sealing storage bags which is easily portable and may be taken virtually anywhere while traveling, camping, hiking and the like.
- Yet another object of this invention is to provide a reusable storage arrangement for vacuum storing foods using conventional flexible plastic storage bags or “baggies”.
- FIG. 1 is a perspective view of the invention installed into a conventional sealable plastic storage container or “baggie”.
- FIG. 2 is a top plan view of the inner valve member of the invention.
- FIG. 3 is a side elevation view of FIG. 2 .
- FIG. 4 is a bottom plan view of FIG. 2 .
- FIG. 5 is an end elevation view of FIG. 2 .
- FIG. 6 is an exploded perspective view of FIG. 2 .
- FIG. 7 is a section view in the direction of arrows 7 - 7 in FIG. 2 .
- FIG. 8 is a section view in the direction of arrows 8 - 8 in FIG. 4 .
- FIG. 9 is a front elevation view of the preferred embodiment of a manual air evacuation pump of the invention.
- FIG. 10 is a side elevation view of FIG. 9 .
- FIG. 11 is a top plan view of FIG. 9 .
- FIG. 12 is a bottom plan view of FIG. 9 .
- FIG. 13 is a perspective view of FIG. 9 .
- FIG. 14 is an exploded perspective view of FIG. 9 .
- FIG. 15 is a section view in the direction of arrows 15 - 15 in FIG. 10 .
- FIG. 16 is a section view in the direction of arrows 16 - 16 in FIG. 9 .
- FIG. 17 is a top plan view of a resilient sealing ring.
- FIG. 18 is a side elevation view of FIG. 17 .
- FIG. 19 is a section view in the direction of arrows 19 - 19 in FIG. 17 .
- the system 10 includes an air valve assembly 12 which includes an inner valve member 14 and an outer valve member 16 installed into the conventional plastic storage bag or container A.
- a food item or other storable goods D is placed within the open sealable end C of the bag A.
- the air valve assembly 12 was assembled onto one of the flexible side panels of the bag B as will be described in more detail in FIGS. 7 and 8 .
- the sealable end C is closed.
- a vacuum pump is utilized in conjunction with the air valve assembly 12 to evacuate substantially all air from within the sealed storage bag A, again as will be described in more detail herebelow.
- the inner valve member 14 includes a molded plastic piercing spout 50 molded as a unit with a base 32 and further includes a stabilizing base plate 15 generally in the shape of a semi-circular flat disc extending outwardly from the plane of the base 32 .
- the piercing spout 50 is automatically positioned against an inner surface of one of the flexible bag panels E and is tapered so as to easily pierce through the panel E by manual pressure inwardly against and immediately around the piercing spout 50 .
- the base plate 15 may also be manually depressed or held to stabilize the inner valve member 14 within the bag B while this piercing process is accomplished.
- the outer valve member 16 also formed of molded plastic material, includes a housing 20 having a tubular outlet 30 therefor in a concentric alignment with a continuous preferably planar sealing edge 42 and an outer air chamber 48 .
- the housing 20 also includes a central longitudinal hole 53 which tightly engages around the cylindrical base 55 of piercing spout 50 .
- the interactive dimensions between the height of housing 20 and that of retaining ring 18 are such that a substantial sealing pressure is exerted against the bag panel E between the sealing edge 42 and a sealing groove 44 formed around the piercing spout 50 to substantially trap that portion of the bag panel E therebetween.
- This arrangement establishes a sealed or closed airflow path from the interior of the storage bag B and the air outlet 30 .
- spaces between the strengthening ribs 34 of the base plate 15 and air slots 38 between spacers or legs 46 prevent the other bag panel F from blocking the airflow path to an air evacuation port 36 formed through the base 32 .
- Evacuation of air continues through the inner portion 48 a of the hollow interior 48 of housing 20 into an air passage 56 for exhausting through an air outlet 52 formed centrally through the piercing spout 50 .
- the thin sheet flexible plastic material forming the bag B and panels E collapses inwardly from the position shown in phantom at G surrounding the base 53 of the piercing spout 50 to the position shown in phantom at H. In doing so, this portion of the panel E contacts against ridge 58 formed continuously around the spout base 55 to effect a vacuum seal therebetween.
- the preferred embodiment of the air evacuation pump of the system 10 is there shown generally at numeral 60 and includes a molded plastic pump body 62 having finger-engaging handle 64 extending laterally therefrom for activation of the pump 60 .
- a soft resilient elastomeric valve seat 66 held in place by mating retaining beads 68 within a retaining groove 70 formed within the pump body 62 .
- the valve seat 66 includes a tapered cavity 92 which matably engages over the outer surface of the air outlet 30 of the outer valve member 16 previously described. This establishes a temporary positive seal therebetween for air evacuation from the bag B as previously described.
- An elongated pump actuator 74 is slidably engagable within the inner bore of the pump body 62 . This relationship is made sealable by a flexible actuator seal 90 which sealingly and biasingly engages against the inner bore of the pump body 62 .
- An actuator stem 80 is snapably engagable over the distal end of pump actuator 74 by the resilient interengagement between the inwardly extending retaining tabs 94 best seen in FIGS. 13 and 16 into a retaining groove 78 . Note that there is an air clearance or passageway 102 between the inner surface of the actuator stem 80 and the outer surface of the distal end portion of the pump actuator 74 for the release or discharge of air in the direction of arrow M described more completely herebelow.
- the pump assembly 60 also includes an elongated return spring 72 positioned at one end within a spring seat 88 formed concentrically into the proximal end of valve seat 66 while the other end of the return spring 72 is positioned within an elongated spring cavity 84 of pump actuator 74 .
- the actuator stem 80 also includes a longitudinally extending stem 82 fitted in spaced relationship within an elongated stem well 104 of the pump actuator 74 .
- a sealing or check ball 76 is floatingly positioned to sealingly engage within a sealing ball seat 98 formed at the proximal end of the stem weld 104 .
- the sealing ball seat 98 is sealed.
- the pump actuator 74 is depressed inwardly in the direction of arrow K, the sealing ball 76 disengages from sealing engagement with sealing ball seat 98 and air within the pump body 62 is discharged therefrom through air passage 100 and outwardly in the direction of arrow M through the air discharge passage 102 .
- distal end of stem 80 is closely spaced at 86 with respect to sealing ball 76 .
- the return spring 72 forces the pump actuator 74 outwardly in the direction of arrow L and air from within the sealed storage bag A is drawn in the direction of arrow A through air conduit 96 of valve seat 66 to effect air evacuation from the sealed storage bag B.
- FIGS. 17 to 19 another embodiment of the outer valve member 16 ′ is there shown in conjunction with the addition of a ring-shaped sealing ring 106 which is formed of resilient elastomeric material, preferably SANTOPRENE or SARLINK, 40 shore “A” derometer.
- a ring-shaped sealing ring 106 which is formed of resilient elastomeric material, preferably SANTOPRENE or SARLINK, 40 shore “A” derometer.
- the thin flexible plastic material forming the panels E collapses inwardly as described with respect to FIG. 8 hereinabove, but does not effect a sufficient vacuum seal against the sealing ridge 58 in FIG. 8 as there described to allow the spout to be capped or otherwise sealed.
- the sealing ring 106 is fitted into the hollow interior of the housing 20 ′ which has slight accommodating interior modifications to receive the sealing ring 106 as shown in FIG. 19 .
- the flexible sealing flange 110 contacts against the sealing ridge 116 of the base 32 and resiliently flexes to overcome the interference shown. This additional pressure against both sides of the flexible panel E enhances the temporary vacuum sealability.
- a collapsible cavity 112 extending radially outwardly from the central air passage 108 , resiliently collapses slightly during the assembly of the outer valve housing 20 ′ onto the base of the spout as previously described.
Abstract
A system, storage bag and method for evacuating air from a convention self-sealing storage bag. An air valve assembly includes inner and outer valve members, the inner valve member being positionable within the storage bag and having a tapered piercing spout adapted to pierce through a flexible panel. The outer valve member has a housing lockingly engagable over the piercing spout protruding outwardly through the panel. A perimeter edge of the housing is sealingly engagable against the bag panel and a mating groove formed into the inner valve member. The inner valve member is configured for temporary sealing engagement against the inner surface of the bag panel as air is removed from the interior of the storage bag out through the piercing spout and housing air outlets by a vacuum pump.
Description
- Not applicable
- Not applicable
- Not applicable
- 1. Field of the Invention
- This invention relates generally to storage containers of the type for storing food and other items in an airtight vacuum environment, and more particularly to a system for converting conventional plastic storage bags having a sealable opening into one which may be evacuated of air for vacuum storage of food items.
- 2. Description of Related Art
- Sealable plastic storage bags or “baggies” are found in almost every kitchen in America. These inexpensive disposable plastic storage bags are convenient for preserving the freshness of food items and other goods which have a longer shelf life when stored in this manner. However, it is also well known that a completely air evacuated or vacuum environment for these food items and other goods will further enhance the shelf life and ultimate freshness of the contents stored therein.
- A number of prior art devices and systems are directed to creating a vacuum or airtight environment within a plastic container to accomplish this extended shelf life benefit. U.S. Pat. No. 5,215,445 to Chen discloses a vacuum pump and heat sealer combination device for evacuating air from a thermoplastic bag and sealing food inside the bag. The device is suited for home use and combines a small-scale heat sealer and a small-scale vacuum pump in a battery-powered device. In U.S. Pat. No. 7,140,402, Russell teaches a vacuum storage system and method in which a lid closure is punctured, a vacuum pump removes atmospheric gas from the container and the lid is sealed with a valve or thin film held in place by adhesive.
- A method and apparatus for vacuum sealing is discloses in U.S. Pat. No. 7,297,860 to Hughes, et al. The device is configured to remove air from zipper-sealed bags and is adapted to communicate with a vacuum source. A self-sealing storage bag includes an adhesive patch constructed as part of the bag is taught in U.S. Pat. No. 6,070,397 to Bachhuber.
- Maruscak teaches a household vacuum system for vacuum packing foods in bags in U.S. Pat. No. 4,337,804. The system includes a suction tube and needle valve for penetrating the wall of the container. U.S. Pat. No. 5,287,680 to Lau discloses a battery-powered, hand-held device for evacuating and sealing a plastic bag and Carcano discloses a device and method for creating a vacuum in food-holding bags in U.S. Pat. No. 5,711,136.
- U.S. Pat. No. 5,873,217 to Smith discloses a vacuum sealing method and article comprising a hand-held vacuum source for evacuating a zipper-type plastic bag and a design patent to Benedict, U.S. Pat. No. D513,924 teaches a hand-held vacuum apparatus. U.S. published application US2007/0154118 to Tilman, et al. teaches a polymeric package with resealable closure and valve and methods relation thereto.
- The present invention achieves the longer shelf life benefits for vacuum storage of food stuffs and other items in conjunction with a completely conventional inexpensive plastic storage bag or “baggie” on an economically selective basis which greatly enhances the economy and effectiveness of the application of this broad notion of vacuum sealing.
- The foregoing examples of the related art and limitations related therewith are intended to be illustrative and not exclusive. Other limitations of the related art will become apparent to those skilled in the art upon a reading of the specification and a study of the drawings.
- This invention is directed to a system, air valve assembly and method for evacuating air from the flexible self-sealing storage bag and for permanently maintaining the interior vacuum within the storage bag. An air valve assembly includes an inner valve member and an outer valve member, the inner valve member being positionable within the storage bag and against an inner surface of one flexible panel of the storage bag. The inner valve has a tapered piercing spout adapted to pierce through the flexible panel. The outer valve member has an outer valve housing positionable and lockingly engagable over the piercing spout as or after the piercing spout has penetrated outwardly through the flexible panel. A perimeter edge of the housing is sealingly engagable against the one flexible panel and a mating groove formed into the inner valve member around the piercing spout, the piercing spout having an air outlet in fluid communication with the interior of the storage bag for air evacuation. The inner valve member configured for temporary sealing engagement against the inner surface of the one flexible panel as air is removed from the interior of the storage bag out through the air outlet by activation of a vacuum pump through an air outlet of the housing.
- It is therefore an object of this invention to provide a system for converting virtually any sealable plastic or flexible paneled storage bag into a vacuum-sealed storage container for preserving the freshness of foods.
- It is yet another object of this invention to provide a system for vacuum sealing foods and other products within a sealable plastic storage bag which is easily storable and out of site when not in use.
- Yet another object of this invention is to provide a system for vacuum sealing storage bags which is easily portable and may be taken virtually anywhere while traveling, camping, hiking and the like.
- And yet another object of this invention is to provide a reusable storage arrangement for vacuum storing foods using conventional flexible plastic storage bags or “baggies”.
- The following embodiments and aspects thereof are described and illustrated in conjunction with systems, tools and methods which are meant to be exemplary and illustrative and not limiting in scope. In various embodiments one or more of the above-described problems have been reduced or eliminated while other embodiments are directed to other improvements. In addition to the exemplary aspects and embodiments described above, further aspects and embodiments will become apparent by reference of the drawings and by study of the following descriptions.
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FIG. 1 is a perspective view of the invention installed into a conventional sealable plastic storage container or “baggie”. -
FIG. 2 is a top plan view of the inner valve member of the invention. -
FIG. 3 is a side elevation view ofFIG. 2 . -
FIG. 4 is a bottom plan view ofFIG. 2 . -
FIG. 5 is an end elevation view ofFIG. 2 . -
FIG. 6 is an exploded perspective view ofFIG. 2 . -
FIG. 7 is a section view in the direction of arrows 7-7 inFIG. 2 . -
FIG. 8 is a section view in the direction of arrows 8-8 inFIG. 4 . -
FIG. 9 is a front elevation view of the preferred embodiment of a manual air evacuation pump of the invention. -
FIG. 10 is a side elevation view ofFIG. 9 . -
FIG. 11 is a top plan view ofFIG. 9 . -
FIG. 12 is a bottom plan view ofFIG. 9 . -
FIG. 13 is a perspective view ofFIG. 9 . -
FIG. 14 is an exploded perspective view ofFIG. 9 . -
FIG. 15 is a section view in the direction of arrows 15-15 inFIG. 10 . -
FIG. 16 is a section view in the direction of arrows 16-16 inFIG. 9 . -
FIG. 17 is a top plan view of a resilient sealing ring. -
FIG. 18 is a side elevation view ofFIG. 17 . -
FIG. 19 is a section view in the direction of arrows 19-19 inFIG. 17 . - Exemplary embodiments are illustrated in reference figures of the drawings. It is intended that the embodiments and figures disclosed herein are to be considered to be illustrative rather than limiting.
- Referring now to the drawings, and firstly to
FIGS. 1 to 8 , the system of the invention in combination with a conventional plastic storage container or bag A is there shown generally atnumeral 10. Thesystem 10 includes anair valve assembly 12 which includes aninner valve member 14 and anouter valve member 16 installed into the conventional plastic storage bag or container A. - Initially, a food item or other storable goods D is placed within the open sealable end C of the bag A. Prior to this, the
air valve assembly 12 was assembled onto one of the flexible side panels of the bag B as will be described in more detail inFIGS. 7 and 8 . After installation of theair valve assembly 12 and insertion of the item D to be vacuum-sealed within the flexible storage bag A, the sealable end C is closed. Thereafter, a vacuum pump is utilized in conjunction with theair valve assembly 12 to evacuate substantially all air from within the sealed storage bag A, again as will be described in more detail herebelow. - The
inner valve member 14 includes a moldedplastic piercing spout 50 molded as a unit with abase 32 and further includes a stabilizingbase plate 15 generally in the shape of a semi-circular flat disc extending outwardly from the plane of thebase 32. As best seen inFIG. 8 , after theinner valve member 14 is positioned within the flexible bag B, the piercingspout 50 is automatically positioned against an inner surface of one of the flexible bag panels E and is tapered so as to easily pierce through the panel E by manual pressure inwardly against and immediately around the piercingspout 50. By placing the other bag panel F of the bag B against a flat surface such as a table or kitchen counter, thebase plate 15 may also be manually depressed or held to stabilize theinner valve member 14 within the bag B while this piercing process is accomplished. - The
outer valve member 16, also formed of molded plastic material, includes ahousing 20 having atubular outlet 30 therefor in a concentric alignment with a continuous preferably planar sealingedge 42 and anouter air chamber 48. Thehousing 20 also includes a centrallongitudinal hole 53 which tightly engages around thecylindrical base 55 of piercingspout 50. - As the two
valve members FIGS. 7 and 8 with theinner valve member 14 within the storage bag B, a tight sealing engagement is accomplished between thecentral hole 53 and thespout base 55 which is secured by anannular bead 18 which snapingly engages into the enlarged bottom of thehollow interior 31 ofspout air outlet 30.Cavities 54 enhance the inward resiliency of retainingbead 18 to facilitate installation and to resiliently enhance retentions between the inner andouter valve members - The interactive dimensions between the height of
housing 20 and that of retainingring 18 are such that a substantial sealing pressure is exerted against the bag panel E between the sealingedge 42 and a sealinggroove 44 formed around the piercingspout 50 to substantially trap that portion of the bag panel E therebetween. This arrangement establishes a sealed or closed airflow path from the interior of the storage bag B and theair outlet 30. To insure that air evacuation from the bag B is complete and unencumbered, spaces between the strengtheningribs 34 of thebase plate 15 andair slots 38 between spacers orlegs 46 prevent the other bag panel F from blocking the airflow path to anair evacuation port 36 formed through thebase 32. Evacuation of air continues through theinner portion 48a of thehollow interior 48 ofhousing 20 into anair passage 56 for exhausting through anair outlet 52 formed centrally through the piercingspout 50. - Importantly, as air is evacuated from the bag B as above described, the thin sheet flexible plastic material forming the bag B and panels E collapses inwardly from the position shown in phantom at G surrounding the
base 53 of the piercingspout 50 to the position shown in phantom at H. In doing so, this portion of the panel E contacts againstridge 58 formed continuously around thespout base 55 to effect a vacuum seal therebetween. When substantially all of the air has been removed from the bag B, the greatest amount of sealing occurs at thispoint 58 for a time sufficient for the vacuum pump to be removed fromair outlet 30 as described herebelow and for sealingcap 24, held in spaced relation bytether 28 fromhousing 20, to be flexed over upon itself and engaged over theair outlet 30. The distal end of theair outlet 30 presses against the sealingring 26 to effect permanent vacuum sealing of the interior of the bag B, thecap 24 being held in this position bymating retaining bead 22 within retaininggroove 25. - Referring now to
FIGS. 9 to 16 , the preferred embodiment of the air evacuation pump of thesystem 10 is there shown generally atnumeral 60 and includes a moldedplastic pump body 62 having finger-engaginghandle 64 extending laterally therefrom for activation of thepump 60. A soft resilientelastomeric valve seat 66 held in place bymating retaining beads 68 within a retaininggroove 70 formed within thepump body 62. Thevalve seat 66 includes a taperedcavity 92 which matably engages over the outer surface of theair outlet 30 of theouter valve member 16 previously described. This establishes a temporary positive seal therebetween for air evacuation from the bag B as previously described. - An
elongated pump actuator 74 is slidably engagable within the inner bore of thepump body 62. This relationship is made sealable by aflexible actuator seal 90 which sealingly and biasingly engages against the inner bore of thepump body 62. An actuator stem 80 is snapably engagable over the distal end ofpump actuator 74 by the resilient interengagement between the inwardly extending retainingtabs 94 best seen inFIGS. 13 and 16 into a retaininggroove 78. Note that there is an air clearance orpassageway 102 between the inner surface of theactuator stem 80 and the outer surface of the distal end portion of thepump actuator 74 for the release or discharge of air in the direction of arrow M described more completely herebelow. - The
pump assembly 60 also includes an elongatedreturn spring 72 positioned at one end within aspring seat 88 formed concentrically into the proximal end ofvalve seat 66 while the other end of thereturn spring 72 is positioned within anelongated spring cavity 84 ofpump actuator 74. - The actuator stem 80 also includes a
longitudinally extending stem 82 fitted in spaced relationship within an elongated stem well 104 of thepump actuator 74. A sealing or checkball 76 is floatingly positioned to sealingly engage within a sealingball seat 98 formed at the proximal end of thestem weld 104. When the sealingball 76 is in the position shown inFIG. 15 , the sealingball seat 98 is sealed. When thepump actuator 74 is depressed inwardly in the direction of arrow K, the sealingball 76 disengages from sealing engagement with sealingball seat 98 and air within thepump body 62 is discharged therefrom throughair passage 100 and outwardly in the direction of arrow M through theair discharge passage 102. Note that the distal end ofstem 80 is closely spaced at 86 with respect to sealingball 76. When pressure against the distal end of theactuator stem 80 is released, thereturn spring 72 forces thepump actuator 74 outwardly in the direction of arrow L and air from within the sealed storage bag A is drawn in the direction of arrow A throughair conduit 96 ofvalve seat 66 to effect air evacuation from the sealed storage bag B. - Referring now to
FIGS. 17 to 19 , another embodiment of theouter valve member 16′ is there shown in conjunction with the addition of a ring-shapedsealing ring 106 which is formed of resilient elastomeric material, preferably SANTOPRENE or SARLINK, 40 shore “A” derometer. In some situations, the thin flexible plastic material forming the panels E collapses inwardly as described with respect toFIG. 8 hereinabove, but does not effect a sufficient vacuum seal against the sealingridge 58 inFIG. 8 as there described to allow the spout to be capped or otherwise sealed. - To insure an adequate continuing seal within the vacuum bag B until the spout is sealed, the sealing
ring 106 is fitted into the hollow interior of thehousing 20′ which has slight accommodating interior modifications to receive thesealing ring 106 as shown inFIG. 19 . Theflexible sealing flange 110 contacts against the sealing ridge 116 of thebase 32 and resiliently flexes to overcome the interference shown. This additional pressure against both sides of the flexible panel E enhances the temporary vacuum sealability. To further enhance the biased resiliency of the sealingridge 114, acollapsible cavity 112, extending radially outwardly from thecentral air passage 108, resiliently collapses slightly during the assembly of theouter valve housing 20′ onto the base of the spout as previously described. - While a number of exemplary aspects and embodiments have been discussed above, those of skill in the art will recognize certain modifications, permeations and additions and subcombinations thereof. It is therefore intended that the following appended claims and claims hereinafter introduced are interpreted to include all such modifications, permeations, additions and subcombinations that are within their true spirit and scope.
Claims (9)
1. A system for evacuating air from a flexible self-sealing storage bag, comprising:
a vacuum pump assembly;
an air valve assembly including an inner valve member and an outer valve member;
said inner valve member being positionable within the storage bag and against an inner surface of one flexible panel of the storage bag, said inner valve having a tapered piercing spout adapted to pierce through the one flexible panel;
said outer valve member having an outer valve housing positionable and lockingly engagable over said piercing spout as or after said piercing spout has penetrated outwardly through the one flexible panel;
a substantially continuous perimeter edge of said housing facing and sealingly engaging against the one flexible panel and a mating groove formed into said inner valve member around said piercing spout;
said piercing spout having an air outlet in fluid communication with the interior of the storage bag for air evacuation therefrom, said inner valve member configured for temporary sealing engagement with the inner surface of the one flexible panel as air is removed from the interior of the storage bag out through said air outlet by activation of said vacuum pump when sealingly engaged with an air outlet of said housing.
2. A system as set forth in claim 1 , wherein:
said inner valve member includes a substantially flat stabilizing base plate extending generally orthogonally from the base of said piercing spout.
3. A system a set forth in claim 2 , further comprising:
a sealing cap tethered to said housing and structured for sealing engagement on the air outlet of said housing wherein, after air is evacuated from the storage bag and temporarily sealed, said sealing cap permanently vacuum seals the storage bag from air leakage thereinto.
4. A system as set forth in claim 1 , further comprising:
a resilient sealing ring sized for snug engagement within said housing, an inner resilient sealing flange of aid seal ring biasingly engaging against a portion of the one flexible panel which sealingly contacts against a continuous sealing ridge formed around a spout base, said sealing ring maintaining the vacuum within the bag for a time sufficient to seal said air outlet.
5. An air valve assembly attachable to a flexible self-sealing storage bag for evacuating air from the storage bag and maintaining an air vacuum therewithin, comprising:
an inner valve member and an outer valve member;
said inner valve member being positionable within the storage bag and against an inner surface of one flexible panel of the storage bag, said inner valve having a tapered piercing spout adapted to pierce through the one flexible panel;
said outer valve member having an outer valve housing positionable and lockingly engagable over said piercing spout as or after said piercing spout has penetrated outwardly through the one flexible panel;
a substantially continuous perimeter edge of said housing facing and sealingly engaging against the one flexible panel and a mating groove formed into said inner valve member around said piercing spout;
said piercing spout having an air outlet in fluid communication with the interior of the storage bag for air evacuation therefrom, said inner valve member between said piercing spout and said mating groove configured for temporary sealing engagement with the inner surface of the one flexible panel as air is removed from the interior of the storage bag out through said air outlet by activation of a vacuum pump when sealingly engaged with an air outlet of said housing.
6. A system as set forth in claim 5 , wherein:
said inner valve member includes a substantially flat stabilizing base plate extending generally orthogonally from the base of said piercing spout.
7. A system a set forth in claim 6 , further comprising:
a sealing cap tethered to said housing and structured for sealing engagement on the air outlet of said housing wherein, after air is evacuated from the storage bag and temporarily sealed, said sealing cap permanently vacuum seals the storage bag from air leakage thereinto.
8. An air valve assembly as set forth in claim 5 , further comprising:
a resilient sealing ring sized for snug engagement within said housing, an inner resilient sealing flange of aid sealing ring biasingly engaging against a portion of the one flexible panel which sealingly contacts against a continuous sealing ridge formed around a spout base, said sealing ring maintaining the vacuum within the bag for a time sufficient to seal said air outlet.
9. (canceled)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/074,529 US20090223174A1 (en) | 2008-03-04 | 2008-03-04 | System, air valve assembly and method for air evacuation of plastic sealable storage bags |
US12/542,858 US7997047B1 (en) | 2008-03-04 | 2009-08-18 | Air evacuation assembly for sealable plastic bags |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/074,529 US20090223174A1 (en) | 2008-03-04 | 2008-03-04 | System, air valve assembly and method for air evacuation of plastic sealable storage bags |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/542,858 Continuation-In-Part US7997047B1 (en) | 2008-03-04 | 2009-08-18 | Air evacuation assembly for sealable plastic bags |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090223174A1 true US20090223174A1 (en) | 2009-09-10 |
Family
ID=41052172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/074,529 Abandoned US20090223174A1 (en) | 2008-03-04 | 2008-03-04 | System, air valve assembly and method for air evacuation of plastic sealable storage bags |
Country Status (1)
Country | Link |
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US (1) | US20090223174A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US20100326987A1 (en) * | 2009-06-30 | 2010-12-30 | F.A.C.E.M. S.P.A. | Vacuum packaging in containers provided with an air-tight closing lid |
US20110297013A1 (en) * | 2008-10-08 | 2011-12-08 | Frederic Charles Sciamma | Portable vacuum juicer |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: WIDGETEER, INC., ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SARGENT, RONALD J.;REEL/FRAME:022044/0587 Effective date: 20081104 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |