CA2440971C - Container assembly having a cover cap provided with a pump member to pump out air from a container - Google Patents
Container assembly having a cover cap provided with a pump member to pump out air from a container Download PDFInfo
- Publication number
- CA2440971C CA2440971C CA002440971A CA2440971A CA2440971C CA 2440971 C CA2440971 C CA 2440971C CA 002440971 A CA002440971 A CA 002440971A CA 2440971 A CA2440971 A CA 2440971A CA 2440971 C CA2440971 C CA 2440971C
- Authority
- CA
- Canada
- Prior art keywords
- pump
- inlet
- receiving chamber
- wall portion
- mounting wall
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
- B65B31/06—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or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzle being arranged for insertion into, and withdrawal from, the mouth of a filled container and operating in conjunction with means for sealing the container mouth
-
- 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or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied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or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
- B65D81/2038—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum with means for establishing or improving vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B33/00—Pumps actuated by muscle power, e.g. for inflating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Closures For Containers (AREA)
Abstract
A container assembly includes a cover cap mounted sealingly on a container. The cap has a pump-mounting wall portion defining a pump-receiving chamber, an inlet formed in the pump-mounting wall portion and in fluid communication with the chamber and a storing space of the container, and a valve-mounting wall portion defining an opening which is in the fluid communication with the storing space and the atmosphere. A pump member is disposed movably and sealingly in the chamber, and has an outlet in fluid communication with the chamber and the atmosphere. An urging member urges the pump member away from the inlet. First and second check valves are mounted respectively on the cap and the pump member for closing the inlet and the outlet of the chamber, respectively. An air-inlet valve is mounted on the valve-mounting wall portion for closing the opening in the cap, and is operable to uncover the opening in the cap.
Description
''~TTL~ : C~~TirrIN~R ASSEI~RIrY ~IAYZ~ifx ~ G~S~'~R ~~P FROV~I~F~I7 KITH A. ~'M~T~- PB~~-P 3~~R F~1~E?~ ~
~or~TAZr~~R
~~rr..n of T~~ z~r~zor~
°~°h~s iwut~ntian ~eiate~ ~.~ a c~ntairie~ assembly.
more part~iculaxl~ t.o a coata.ine~° asseml~~.y having a container and a ~cwe~ cap provided with a putn~r mercrber to pump out a~.x ~rom the ~antairie=.
a~.cR~RO~ og THE s~~~o~T
1~ P. corwentiQnal -Erac~t~rt Gr~atai~.er a~~~~ccbl~r ge~:eral7,Y
includes a. can,te~in.~r that defiraes a s~.orixa~ apace therein and that bas a t~ap~ c~p~-n ewd ~or ac-oeas .~xzt~
the ~.to~in~ space and a t~xp ogsr~~.rzg ~efiraet~ by the top ogen nnci. .~ cover cap i.s mot~r~tecc tin the top open ex~.d IS o~ the container so as to clase the. t.og apenin.g. A
eepara,te gump c~~mbe;~ i~ ~s.ed- ts~- dray gut th-a a3x ~ro tie ~~or3n~ space in order tc~ p~es~r-u a the foodstazf ~
str~r~d in ~a ~~-ntai.n~~'.
zxt tht-~ oonveritional vacuu.~ corztainer assembly, 20 si.rtve the pump edember is rtc~rmall~r stored ~epa~-ate~,~r ~rk~.e~, nat ~.n use, it te~xe~s t~ t~ri~~rlac~e~ after ~xs~ _ t~o~eo~uer ~ the oonvent~.o~al ~rae~,~,m cc~xztain~~ assembly req~eires both hands of the user to pump out the a~.r frQrn the ec~ntazner_ 2~ SITMMARY O~' fiFI~ 7CI~81~TI~~3 The Fnai,n, obj act o.~ this ~.nver~tior~ is to prc~trar~e ~, container assemY~ly which has a contaa.ner and- a coue-r cap provided with a pump member to pump out air from the container and which can avoid the aforesaid drawbacks encountered during use of the conventional container assembly.
In accordance with the present invention, there is provided a container assembly which includes a hollow container, a cover cap, a pump member, an urging member, a first check valve, a second check valve, and an air-inlet valve.
to The container defines a storing space, and has a top open end and a top opening defined by the top open end for access into the storing space. The cover cap is mounted detachably and sealingly on the top open end of the hollow container so as to cover the top opening. The cover cap has a pump-mounting wall portion of a U-shaped cross section that defines a pump-receiving chamber, an inlet formed in the pump-mounting wall portion and in fluid communication with the pump-receiving chamber and the storing space, and a valve-mounting wall portion that extends outwardly from the 2o pump-mounting wall portion and that is formed with an opening which is in fluid communication with the storing space and the atmosphere.
The pump member is disposed movably and sealingly in the pump-receiving chamber, and is movable toward and away from the inlet so as to vary pressure in the pump-receiving chamber by virtue of change in volume of the pump-receiving chamber. Further, the pump member has an outlet in fluid communication with the pump-receiving chamber and the atmosphere. The urging member urges the pump member away from the inlet.
The first check valve is mounted on the cover cap for closing the inlet of the pump receiving chamber. The inlet is capable of being opened when pressure in the storing space is greater than that in the pump-receiving chamber, thereby permitting fluid flow from the storing space into the pump-receiving chamber. The inlet is capable of being closed by the first check valve when the pressure in the pump-receiving to chamber is greater than that in the storing space upon movement of the pump member toward the inlet against urging action of the urging member.
The second check valve is mounted on the pump member for closing the outlet of the pump-receiving chamber. The outlet t5 is capable of being opened when the pressure in the pump receiving chamber is greater than the atmosphere upon movement of the pump member toward the inlet against the urging action of the urging member, thereby permitting fluid flow from the pump-receiving chamber into the atmosphere.
2o The outlet is capable of being closed by the second check valve and the inlet is capable of being opened when the pressure in the pump-receiving chamber is less than the atmospheric pressure and the pressure in the storing space upon movement of the pump member away from the inlet by 25 virtue of the urging action of the urging member.
The air-inlet valve is mounted on the valve-mounting wall portion for closing the opening in the cover cap. The air-inlet valve is capable of being manually operated to uncover the opening in the cover cap when desired.
In addition, the cover cap has a peripheral wall portion surrounding the valve-mounting wall portion and is formed with a downwardly facing seal-receiving groove therein, the container assembly further comprising a seal member that is fitted in the seal-receiving groove and that abuts against the top open end of the container so as to establish a hermetically sealing effect between the cover cap and. the top open end of the container.
Further, the pump-mounting wall portion has a bottom to confining a bottom side of the pump-receiving chamber, the inlet being formed in the bottom of the pump-mounting wall portion, the cover cap further including an annular wall which is disposed in the pump-receiving chamber, which extends upwardly from the bottom of the pump-mounting wall portion, and which is formed with a plurality of angularly spaced apart limiting slots therein and a plurality of engaging faces that confine top sides of the limiting slots, the pump member having a top wall opposite to the bottom of the pump-mounting wall portion and confining a top side of 2o the pump-receiving chamber, and a plurality of angularly spaced apart engaging tongues extending downwardly from the top wall into the limiting slots and engaging the engaging faces, respectively, when the pump member moves upwardly away from the inlet so as to restrict range of movement of the pump member in the pump-receiving chamber and so as to prevent removal of the pump member from the pump-receiving chamber.
~or~TAZr~~R
~~rr..n of T~~ z~r~zor~
°~°h~s iwut~ntian ~eiate~ ~.~ a c~ntairie~ assembly.
more part~iculaxl~ t.o a coata.ine~° asseml~~.y having a container and a ~cwe~ cap provided with a putn~r mercrber to pump out a~.x ~rom the ~antairie=.
a~.cR~RO~ og THE s~~~o~T
1~ P. corwentiQnal -Erac~t~rt Gr~atai~.er a~~~~ccbl~r ge~:eral7,Y
includes a. can,te~in.~r that defiraes a s~.orixa~ apace therein and that bas a t~ap~ c~p~-n ewd ~or ac-oeas .~xzt~
the ~.to~in~ space and a t~xp ogsr~~.rzg ~efiraet~ by the top ogen nnci. .~ cover cap i.s mot~r~tecc tin the top open ex~.d IS o~ the container so as to clase the. t.og apenin.g. A
eepara,te gump c~~mbe;~ i~ ~s.ed- ts~- dray gut th-a a3x ~ro tie ~~or3n~ space in order tc~ p~es~r-u a the foodstazf ~
str~r~d in ~a ~~-ntai.n~~'.
zxt tht-~ oonveritional vacuu.~ corztainer assembly, 20 si.rtve the pump edember is rtc~rmall~r stored ~epa~-ate~,~r ~rk~.e~, nat ~.n use, it te~xe~s t~ t~ri~~rlac~e~ after ~xs~ _ t~o~eo~uer ~ the oonvent~.o~al ~rae~,~,m cc~xztain~~ assembly req~eires both hands of the user to pump out the a~.r frQrn the ec~ntazner_ 2~ SITMMARY O~' fiFI~ 7CI~81~TI~~3 The Fnai,n, obj act o.~ this ~.nver~tior~ is to prc~trar~e ~, container assemY~ly which has a contaa.ner and- a coue-r cap provided with a pump member to pump out air from the container and which can avoid the aforesaid drawbacks encountered during use of the conventional container assembly.
In accordance with the present invention, there is provided a container assembly which includes a hollow container, a cover cap, a pump member, an urging member, a first check valve, a second check valve, and an air-inlet valve.
to The container defines a storing space, and has a top open end and a top opening defined by the top open end for access into the storing space. The cover cap is mounted detachably and sealingly on the top open end of the hollow container so as to cover the top opening. The cover cap has a pump-mounting wall portion of a U-shaped cross section that defines a pump-receiving chamber, an inlet formed in the pump-mounting wall portion and in fluid communication with the pump-receiving chamber and the storing space, and a valve-mounting wall portion that extends outwardly from the 2o pump-mounting wall portion and that is formed with an opening which is in fluid communication with the storing space and the atmosphere.
The pump member is disposed movably and sealingly in the pump-receiving chamber, and is movable toward and away from the inlet so as to vary pressure in the pump-receiving chamber by virtue of change in volume of the pump-receiving chamber. Further, the pump member has an outlet in fluid communication with the pump-receiving chamber and the atmosphere. The urging member urges the pump member away from the inlet.
The first check valve is mounted on the cover cap for closing the inlet of the pump receiving chamber. The inlet is capable of being opened when pressure in the storing space is greater than that in the pump-receiving chamber, thereby permitting fluid flow from the storing space into the pump-receiving chamber. The inlet is capable of being closed by the first check valve when the pressure in the pump-receiving to chamber is greater than that in the storing space upon movement of the pump member toward the inlet against urging action of the urging member.
The second check valve is mounted on the pump member for closing the outlet of the pump-receiving chamber. The outlet t5 is capable of being opened when the pressure in the pump receiving chamber is greater than the atmosphere upon movement of the pump member toward the inlet against the urging action of the urging member, thereby permitting fluid flow from the pump-receiving chamber into the atmosphere.
2o The outlet is capable of being closed by the second check valve and the inlet is capable of being opened when the pressure in the pump-receiving chamber is less than the atmospheric pressure and the pressure in the storing space upon movement of the pump member away from the inlet by 25 virtue of the urging action of the urging member.
The air-inlet valve is mounted on the valve-mounting wall portion for closing the opening in the cover cap. The air-inlet valve is capable of being manually operated to uncover the opening in the cover cap when desired.
In addition, the cover cap has a peripheral wall portion surrounding the valve-mounting wall portion and is formed with a downwardly facing seal-receiving groove therein, the container assembly further comprising a seal member that is fitted in the seal-receiving groove and that abuts against the top open end of the container so as to establish a hermetically sealing effect between the cover cap and. the top open end of the container.
Further, the pump-mounting wall portion has a bottom to confining a bottom side of the pump-receiving chamber, the inlet being formed in the bottom of the pump-mounting wall portion, the cover cap further including an annular wall which is disposed in the pump-receiving chamber, which extends upwardly from the bottom of the pump-mounting wall portion, and which is formed with a plurality of angularly spaced apart limiting slots therein and a plurality of engaging faces that confine top sides of the limiting slots, the pump member having a top wall opposite to the bottom of the pump-mounting wall portion and confining a top side of 2o the pump-receiving chamber, and a plurality of angularly spaced apart engaging tongues extending downwardly from the top wall into the limiting slots and engaging the engaging faces, respectively, when the pump member moves upwardly away from the inlet so as to restrict range of movement of the pump member in the pump-receiving chamber and so as to prevent removal of the pump member from the pump-receiving chamber.
BRIEF DESCRIPTION OF TFIE DRAWINGS
These and other features and advantages of this invention will become apparent in the following detailed description of the preferred embodiment of this invention, with reference to the accompanying drawings, in which:
Figure 1 is an exploded view of a preferred embodiment of a container assembly according to the present invention;
1o Figure 2 is a schematic sectional view of the preferred embodiment in a normal state;
Figure 3, illustrates how a pump member extends into a pump-receiving chamber of the preferred embodiment when an external force is applied thereto so as to expel air in the pump-receiving chamber into the atmosphere;
Figure 4 illustrates how the pump member withdraws outwardly from the pump-receiving chamber of the preferred embodiment upon release of the applied external force so as to draw air from a container into the pump-receiving chamber;
Figure 5 illustrates the preferred embodiment in vacuum state;
Figure 6 iilustrat~~ ho~~ the preferred emhadime~c retuxras ~c~ ~h~ formal ~~~~e upon ;~.~~,ua~io~~ c~~ an air-inlet vaI°t~e ~t~ur~~~d th.er~G~xaa Figuz'e '~ shovas an ~~plo~~d view of a ~~~tifi~d assemble ~f a c~ve~- cep end a pump m~mb~~° fog ~.~~ in the p~~ f erred en~bodi~te~t s~C~~~1 ~.~ ~'igur~ ~ ; arid Fic~ur~ 8 is a s~~ti~ri:a~ visa ~-i tY~~ assembiy~ ~: t~r~
cn~-er cap and t.ha pump ~~;~b~r f car use ~.rt the pry f ~rren 1a embodiment s~v~~ ~.z~ Rign~~- ~ a D~T~,I~'~D n~~~~I3~'~'z~ar~ ~~ TFiE ~~E~~~~t,~F~ F~E~ODTMENT
D~fQr~ Gh~ present i.~ventzara, i~ d~~~x~:~~r~~ in c~~e.~ta~r d.etaa~l ~~w~b, ~~f~ren~e 'qty the ft531o~irzc~
preferred errbodirnents, a4 sh~uid be noted that s~.me ~5 r~ieren~e numexals h~.v~ ~~er~ used tc~ ~~~ate ~~:m.~ia~
elements thxougho~t the spe~~.fi~ati~n.
Referring ~~ ~~g~~°e~ 1 a~~ 2, tie ,~ref~x~r~
~mhs~dim~nt ~f a ~~~~ai~er a~~e~'~~~ according '~o preset ~nv~nticaza i~ s~.~w~, t~ ine~.~~l~ a h.alla~r 2~ c~x~f.a:ir~er ~, a cover cap 3, a ~unctg ~rt~~h~-r ~, ate ur-g~:~a~
memher 4~P a first oheo~ v~.Ive ~.1, a secvz~d ck~.ecl~ ~alv~
a3, arid ~r~ aa~°-if2~et :rai~s~
~s illustrat~c~, th,~ ~~rr_~a~.rzar ~ d~f ~.~zas a storing space 23 , and has ~. bottc~rn wali ? 1, a~2t~ ~ g~riphwral 25 ~ wa~,3 2~ that ~.xtenc~s ~xp~a~rc~~~ f'xc~m t~r~ ~attarrr ~a~Z ~2 anal t hat has a top open egad ~ 3 i3 a~r.d a top ~p~~xi~g ~~ 1 defined by the top open end X30 for access iz-~~t~ the storing ~pac~ 23.
T~~e cs~v~r cap 3 is ~nountad detaahably and ~~a~:ir~gl~r on the t~g open Aid ~~~ c~f ~.h~ ~antai~~~° 2 s~ as to cozr~r tJl~~: tcp op~rs~,ng 23i. The ao~r~r cap 3 has pump-mc°mnti~.c~ wail portion 34 ref a L1-s~2ap~d s~ectiori that def in~~ a pomp-r~c~i. Bring ~~hamb~r ~~.
inlet 3g3 formed ~.n the p~~rpYrz~aurr.tir~g wml3 port s.crrz 3~
~nc~ in fJ.ui.d Communication with, the pump-r~~c~iving ohamber ~5 and the ~'~ori.nc~ spare 23 , anc~ a ~r~lve-mounting ~ra:~1 part.io~. 35 t~a~ o~ct~n:d.~ c~z,~~r~~dl.y arr,~
radially from the pump-tnc~ua~ting wall porticos ~~ ars.+~
that i~ f~rrn~d with an opining ~SEI t~rhi~rh i~ iz2 fluid oc~ittmunica~,s,car3 vaith t~~ ~t~ri zz~ ~pae~e ~~ ~rrc~ tlzw atmo~ph~r~v i5 The pu~;~ men~b~r ~ ~~ di~os~d ovahl~- azzd ~~alin~-iy-in the pur~~a-~eceivl~g eh~er 45, ~a~~1 i~ a~ac~vab3.~
tc~~rard and away from th.~ inlet ~~3 so a~ ~t~ very the pr~ss~.t~~ in ~17,~ p~a~pd~'CC~i~ring ~Gh~trib~r ~x~ b~ v1rtu~
of ~ha.n~e in ~rc~Ic~~e ref the pump-~eaezv~n~ ~~te-r- ~v .
'the pump member ~ hay ~.n ta-~.tlet ,~~.~. in f3.~z.ad c.~mm~xnicat~.c~n ~azith the- p-~:~~5-reaei vir~g c~h~mber 45 and the atmosphere _ ~referab:~~r, a rr~~r~s~r ~~al-r-ia~g ~~ i~
disgosed in an annular g~~av°~ triat i~ formed a.ra are e~ut~r surface oaf the pump r~c~~~tbe:~ ~ . The peal-ring ~~
fric~.~,ar~ally ~.~,d sli.dably enc~age~ an ~.nner suxf~.~~ of_ the pump-mourz!tir_g wall portion 34 to ~rcwia.e a leak-proof elect ~~aen the p~zrnp m~rrc3~er ~ mavc~s ire Cha pump-receivir~g ~h~rnb~r ~5.
The urging mer~her ~~ i~ e~z~posed an the p~a~p_ receiving chamber ~5 for ur~~,n~ the giimp ~tembe;r ~ ~~ay' fgc~m thg inlet 34~ in the pazmp-mount:i.ng gall pt~rtic~n 34.
The f~rs~ ~he~'_:~ va~~re ~l i~ rnaun.t~ed on the cwr cap ~ fQr blowing the inlet 3~3 in a r~~rma.l oeanditi~rn.
The first check v~l~e 31 i~ actuated tc perm~.t o~~rrix~~
of the in.~.et 343 when ;he prc~seur~ ia~ the atc~r~.x~~ sg~~,oe 23 i~ greatrzr ~.han tl~~t ice; tl~~ purn~-~-~aeivirl.~ chamber tk~~:~e3~~r gera~itti~~ ~3uid flog zrom ~h.~ st~::s.r~g spice ~3 into the pump-r~~eiva~~g eh~n~er ~~ ~s~ee ~~.ga 4 ) ~ Th.e inlet 3~-3 a~ ca~~hle: ~.L heza~r~ overseen b~ the ~'irst eheak valve 3~. w~.e~. the pressure in ~th.~
l~ pump-reaeivi~3g ~~az~~rer 4~ .ice greater th~.rz that ~:n ~~z~
s.tarin~ s~aace 23 up~r~ ~oveme~zc~f t~.a pump ;~emher 4 tourard the inlet ~.~~ against the ~.rga.ng aot~.~z~ of vhe u.r~:.ng membez ~! ~ ~ set ~'ig The ~eco.nd ohe~l~. v~7ve 43 is ~tc~'ttz~ted on the p~.r~~
r~em~er a for cl,os~nt~ the ou~l~'t 411. ~°he second ah~~k valve 43 i~ a~t~aat~~; to permit ~~~nirgg of the outl:~t 421 when the pressure ~,n the ;dump-r~~ce~.~-in~ chamber as c~re~.t~r than. ~.he atmasph~ric~ pressure upon Movement a~ ~~la g~.ur..~p n~~~b~r 4. tn~a-rd the in-~:e-t 2~ ~:g~:itat the ~:rgir~.g ~c~,icn ~rf the u~:yinc~ rn.emb~r thereby permitting gLuid f7.aw~ froth tYzar pump-recei~cring c~:amber g5 into the atma~gher~, a~ hr~s't shown in ~~.gure 3. The o~at~.~t X12 is capable of b~in~ ~lc~ss~d ~r~r tl'1e ~e~o~.~ checl~ valve 43 end the aa~et 3.~3 ~.~ ~~pab~.~ a~
being opened wL~~s~ ~h~ p e~~ur~ ~.~. ~lz~ p~~np--~e~ea.~zn~.
~h~m~~x ~5 i~ Ir~ss thaw t~.e ~'~-~o~pheric: pre~~uxe and the pres'~ure ~.z3: the staring ~p~ce ~3 ~pc~n movement Qf the pump member 4 a~ra~ f ~-tarn the inlet ~ ~. ~ by virtue ~f the ~.~rgi~~ aCtagn of the urging member ~~, t~z~~'eb'~
pertnitt~.ng fl~~aid flog frog. the storing space ~3 i~~~
the p,at'~~-re.ceiva.n~ eh~~b~r ~.5, as ~rs:~t ~~z~~rn igi r ~.gt~z'e ~Q
"The ,sir-~irr~et v~ive 32 ~.~ ~cs~untec~ c~~a. the v~,~ve~
m~t~nt_inc~ vaall, por~~.~n a~ fc~r ~losi~ag the crper~i~g 3~D
of the cover cap 3 . ~'~c~ure ~ ~1'~.~'srttS tie gutt~~-receiv~.rs~
cham3~e~ ~~ ~~.c~: ~h~ ~tor~.ng ~~aee ~~ irt a ~aWci'ut'et ~ta~:~P
1~ result~.~c~ Pram ~~~tin~.e~ re~i.prc~cats.a~~ a~r~ments ~f the pt~rnp ~ae~beo 4 ~.n the put~~~re~eavi~g ci~amber 4~ .
In the tr~~~aum. ~t~te, t~~xe ~r~~z~~ m,~mber 42 is ~~t~pr~~~e~3 lair the atmospheric pxessur~ a.n.d the inlet ~~3 i~ ~l~s~c1 'b~ the f a.r~t. ~h~~'~ vaive 3 ~ . To remove the cover ~~p 29 ~ f~-on the container ~, t~~ air-inlet v~.lve 32 can b~
pu~.~.ed up~w~rd- .way from tie ~~~r~~.ng .~~4, a~ b~~v ~~r~n in ~°~,gure 5, .~o ae tc~ ~aa~oover the ~per~in~ 3~t~~ thereb~a permitting flow of air mrt~r~ tyke a~tm~~phe:~~ into the ~tc~ring space a3 of th:e carxta~rae:r ~ Y ~la~ era rG~tx~ts- x~
~5 actuation of the first c~aeci~ ~~lve fix, opening of the inLe~ 343, and flaw of air from the stc~ririg ~pa~~ 2~
anti the pump-receiving chamber 4~ via the inlet 343..
s The ~zxging member 4~ ~,~ ~ub~~qu~r~tly restored from the ~s~m~r~ssed state ~~a a ne~r_-c~mpre~~~d ~~~t~ when t~a~
pressure in the pu~r~p-r~~p~~r~.n~ ~han~~~ 4~ toc~~ther ~r~.th the urging aotion of the urging m~:z~ber 4~ owercom~
the atmos~sher~.~ p~°~t~sa~.re. ITnder t~~:;~ co~rB.dition, t~e~
c-~~~r cap ~ pan be removed with ea~~ frr~m tea contai~.er ~rhen desired.
Referring aga.ir_. to Figures ~, and 2, t~~ ~~v~~- c~~
3 has a ~a~riph~r~.l ~aali ~c~rti~ri, 33 ~~.arround.i~g t-h~
~~,l~e-mounting wa3:l ~ort~ on 35 anc! fr~~rtted with ~.
da~r~v~ardly .acing anr~ui~.r ~~a~.-~~cez~ri~~ grwc~u~~
therein which i~ e~~f~.a~~~, bar ~ grao~~-~c~nf~.n~..nc~ wall Ari ~nnu3,ar ~.e~:l member ~~~ ~.~ f ttt~d In the s~~l-re~~.ivi~~ ~~re 3~~, ~bzd a~st~t~ as~air~t 't~t~ toy a~aen end ~~(~ o~ the corita~~.~~ ~ ~~ a~ to est~Ialis~ a l~erm~t~.~~11~= s~a~i~2~ ~Lf~~t ~r,~twe~ra the oov~r- yap 3 arid. the t,o~ opera er~d ~3t~ of the ooa~ta~.~~r 2. the ~~a,?
cn~mb~~ 3b ~r~f~ral~ly has twr~ sgaeed~agar~ ar~rxu2~.r an~h.c~r~ng portions. 3~3~ a~xohpred ire twQ ~~~.ent~.v~a xa ~~.Qt~ ~s~. t~~~ ~r~ ~~~~.~d ~.~ ~~~ ~~~~-~~~~-z~~~:~ ~~::~~
352 of the s~ea,l-x~c~i~rin~ ~~oo~sre ~~,i, an anxz~,y'~~.r ~.nt~rmediat~ a:b~tm:~t gort~:c~~ 3a3 t~~~:~ 3;~2~~~~eri~tt~~~~
lavaer ends of the an~~.~red ~cr~ti~ns 3C~2 and that a~t,~ts against t.l~~ toga op.~ri en:d ~~ 0 of t~Z~ c~~r~taircet° 2 f arid ~.n annular ~.nn~x ~~~ti~x~ ~~l tl~~~, pwo~~c~~ downward from cane of tho ari.Ch.ored pc~rtiarl.s 3fl~ ~r~d that ah~t~
against a~ ir~n~r sa;~r~~~e of the ~aerip$Z~z~~xl ~aa~ 22 ref t the container ~ and the grc~c~ve~confinit~c~ ura.ll X52.
Each of the f~rs~. and ~~ear~c~ cheok valves 3~. r ~.rd the air-inlet va~v~ 3~ y~ ~L~~~ide~3 w~.~~. ~ m.ou~afir~
post. 31~, 4Z3 f 323 that sl~di~:gl~ ana nr~n~r~~to~abl.y ~ric~ages the ~SUmp-mounting vaa.Ll port~aora 3~ r tl~
~ralv~-mount~n~ vaall po~'t i~~ 35 a.~d the ~wump meter ~ , respoctively.
Re~~rring to Fic~~~-es~ ~ and ~, a modi~iod assemk~l~r of the cover cap 3 arld th:e pump ct~embr~r ~ i.s ~~aaw~ tt~
1Q h~~e a str~,~~t~re ~irz~ilar tc~ that. ~mplt~y~d in the preferred embodiment . The main ~3if:~er~noe x~o~,ides ~.x~
that, i~ tho tttgdif? ~d ~:s~emb~g~~ th~z~a;~;~ttp-~aur~~,~~1~-~i~i~:
portion 34 has a ~o~~~~ ~~,~, co~fia~.l~.g a hc~ttotll ~it~~
c~~ t-h~ pump- :~o~iving ~harctboz' 45 . '~'h~ l.r~:le~. 543 i~
1~ farmed $z~ the bott.r~m 3~~. of the pump-mounting wall pc~rtiox~ 34 . The cover e~.p 3 fu.rth~r srielude~ an annuL~.r.
wall 3~ wh:ich i~ d~~po~~d ~r~ the pump-r~~el~~r~g charn~er 45, ~rhioh ox,'t~lxti.s upwardly fxoin the 3~ott~~n 3~1 ~f tk~o pumg-mC~ix~.ti~xg wall porta.or~ 34 , ar_d whseh i,~
Z~U formed with a p~tzrallty e~~ angu~:ax°l~ ~pacod apart limits ng slog 3~~. therein and a ~al~a~al~:ty caf e~gag~;t~g fares ~6~ that cor~iine tour ~~.de~ of tl~e ~,~tttiting ~lc~ts 3~1. The pump rr~em~aer ~ ~,~~ a. top will 4~, opposite to the b4ttom 34I of the pump-~~~,g~~,ing wail p9rtion 34 2~ a.r~d eQnf ~.nln~s a top' side of the ~r~t~tp-re~~,~~ing cl!amb~r ~5, and a ps,ural~:ty ox angularlyr spaced apart engaging tongue ~~1 e~ter~d~.r.~g da~s,~~v~ard3y from t'~~~ top ura~:2 ~
into t~h.~ limit~.r~g slobs 361. The engaging ~~rigues 4~1 ~mgag~ ~h~ engaging iac~~ 3~~ of the ~.nn.ular ~aa~7, 36, respect~.v'ely~ v~~Y: t~~ p;~~t~ Fttetttb~x~ 4 ttlt~~eS up~nta~'d~y away from the inlet 343 by vix~~~ ~f t~.~ ~xging a~t~.c~n a~ the u~°gin~ mem~ex~ ~2 s~ as ~o restrict r~.rg~e c~~
movement of the purnp member ~ in the pump-receiving ~hamher 45 and ~o ~.~ ~~ prevent r~mc~vaJ. ~f the manger ~ foam the pump-rece~.v~.ng eh~~ber 4s.
These and other features and advantages of this invention will become apparent in the following detailed description of the preferred embodiment of this invention, with reference to the accompanying drawings, in which:
Figure 1 is an exploded view of a preferred embodiment of a container assembly according to the present invention;
1o Figure 2 is a schematic sectional view of the preferred embodiment in a normal state;
Figure 3, illustrates how a pump member extends into a pump-receiving chamber of the preferred embodiment when an external force is applied thereto so as to expel air in the pump-receiving chamber into the atmosphere;
Figure 4 illustrates how the pump member withdraws outwardly from the pump-receiving chamber of the preferred embodiment upon release of the applied external force so as to draw air from a container into the pump-receiving chamber;
Figure 5 illustrates the preferred embodiment in vacuum state;
Figure 6 iilustrat~~ ho~~ the preferred emhadime~c retuxras ~c~ ~h~ formal ~~~~e upon ;~.~~,ua~io~~ c~~ an air-inlet vaI°t~e ~t~ur~~~d th.er~G~xaa Figuz'e '~ shovas an ~~plo~~d view of a ~~~tifi~d assemble ~f a c~ve~- cep end a pump m~mb~~° fog ~.~~ in the p~~ f erred en~bodi~te~t s~C~~~1 ~.~ ~'igur~ ~ ; arid Fic~ur~ 8 is a s~~ti~ri:a~ visa ~-i tY~~ assembiy~ ~: t~r~
cn~-er cap and t.ha pump ~~;~b~r f car use ~.rt the pry f ~rren 1a embodiment s~v~~ ~.z~ Rign~~- ~ a D~T~,I~'~D n~~~~I3~'~'z~ar~ ~~ TFiE ~~E~~~~t,~F~ F~E~ODTMENT
D~fQr~ Gh~ present i.~ventzara, i~ d~~~x~:~~r~~ in c~~e.~ta~r d.etaa~l ~~w~b, ~~f~ren~e 'qty the ft531o~irzc~
preferred errbodirnents, a4 sh~uid be noted that s~.me ~5 r~ieren~e numexals h~.v~ ~~er~ used tc~ ~~~ate ~~:m.~ia~
elements thxougho~t the spe~~.fi~ati~n.
Referring ~~ ~~g~~°e~ 1 a~~ 2, tie ,~ref~x~r~
~mhs~dim~nt ~f a ~~~~ai~er a~~e~'~~~ according '~o preset ~nv~nticaza i~ s~.~w~, t~ ine~.~~l~ a h.alla~r 2~ c~x~f.a:ir~er ~, a cover cap 3, a ~unctg ~rt~~h~-r ~, ate ur-g~:~a~
memher 4~P a first oheo~ v~.Ive ~.1, a secvz~d ck~.ecl~ ~alv~
a3, arid ~r~ aa~°-if2~et :rai~s~
~s illustrat~c~, th,~ ~~rr_~a~.rzar ~ d~f ~.~zas a storing space 23 , and has ~. bottc~rn wali ? 1, a~2t~ ~ g~riphwral 25 ~ wa~,3 2~ that ~.xtenc~s ~xp~a~rc~~~ f'xc~m t~r~ ~attarrr ~a~Z ~2 anal t hat has a top open egad ~ 3 i3 a~r.d a top ~p~~xi~g ~~ 1 defined by the top open end X30 for access iz-~~t~ the storing ~pac~ 23.
T~~e cs~v~r cap 3 is ~nountad detaahably and ~~a~:ir~gl~r on the t~g open Aid ~~~ c~f ~.h~ ~antai~~~° 2 s~ as to cozr~r tJl~~: tcp op~rs~,ng 23i. The ao~r~r cap 3 has pump-mc°mnti~.c~ wail portion 34 ref a L1-s~2ap~d s~ectiori that def in~~ a pomp-r~c~i. Bring ~~hamb~r ~~.
inlet 3g3 formed ~.n the p~~rpYrz~aurr.tir~g wml3 port s.crrz 3~
~nc~ in fJ.ui.d Communication with, the pump-r~~c~iving ohamber ~5 and the ~'~ori.nc~ spare 23 , anc~ a ~r~lve-mounting ~ra:~1 part.io~. 35 t~a~ o~ct~n:d.~ c~z,~~r~~dl.y arr,~
radially from the pump-tnc~ua~ting wall porticos ~~ ars.+~
that i~ f~rrn~d with an opining ~SEI t~rhi~rh i~ iz2 fluid oc~ittmunica~,s,car3 vaith t~~ ~t~ri zz~ ~pae~e ~~ ~rrc~ tlzw atmo~ph~r~v i5 The pu~;~ men~b~r ~ ~~ di~os~d ovahl~- azzd ~~alin~-iy-in the pur~~a-~eceivl~g eh~er 45, ~a~~1 i~ a~ac~vab3.~
tc~~rard and away from th.~ inlet ~~3 so a~ ~t~ very the pr~ss~.t~~ in ~17,~ p~a~pd~'CC~i~ring ~Gh~trib~r ~x~ b~ v1rtu~
of ~ha.n~e in ~rc~Ic~~e ref the pump-~eaezv~n~ ~~te-r- ~v .
'the pump member ~ hay ~.n ta-~.tlet ,~~.~. in f3.~z.ad c.~mm~xnicat~.c~n ~azith the- p-~:~~5-reaei vir~g c~h~mber 45 and the atmosphere _ ~referab:~~r, a rr~~r~s~r ~~al-r-ia~g ~~ i~
disgosed in an annular g~~av°~ triat i~ formed a.ra are e~ut~r surface oaf the pump r~c~~~tbe:~ ~ . The peal-ring ~~
fric~.~,ar~ally ~.~,d sli.dably enc~age~ an ~.nner suxf~.~~ of_ the pump-mourz!tir_g wall portion 34 to ~rcwia.e a leak-proof elect ~~aen the p~zrnp m~rrc3~er ~ mavc~s ire Cha pump-receivir~g ~h~rnb~r ~5.
The urging mer~her ~~ i~ e~z~posed an the p~a~p_ receiving chamber ~5 for ur~~,n~ the giimp ~tembe;r ~ ~~ay' fgc~m thg inlet 34~ in the pazmp-mount:i.ng gall pt~rtic~n 34.
The f~rs~ ~he~'_:~ va~~re ~l i~ rnaun.t~ed on the cwr cap ~ fQr blowing the inlet 3~3 in a r~~rma.l oeanditi~rn.
The first check v~l~e 31 i~ actuated tc perm~.t o~~rrix~~
of the in.~.et 343 when ;he prc~seur~ ia~ the atc~r~.x~~ sg~~,oe 23 i~ greatrzr ~.han tl~~t ice; tl~~ purn~-~-~aeivirl.~ chamber tk~~:~e3~~r gera~itti~~ ~3uid flog zrom ~h.~ st~::s.r~g spice ~3 into the pump-r~~eiva~~g eh~n~er ~~ ~s~ee ~~.ga 4 ) ~ Th.e inlet 3~-3 a~ ca~~hle: ~.L heza~r~ overseen b~ the ~'irst eheak valve 3~. w~.e~. the pressure in ~th.~
l~ pump-reaeivi~3g ~~az~~rer 4~ .ice greater th~.rz that ~:n ~~z~
s.tarin~ s~aace 23 up~r~ ~oveme~zc~f t~.a pump ;~emher 4 tourard the inlet ~.~~ against the ~.rga.ng aot~.~z~ of vhe u.r~:.ng membez ~! ~ ~ set ~'ig The ~eco.nd ohe~l~. v~7ve 43 is ~tc~'ttz~ted on the p~.r~~
r~em~er a for cl,os~nt~ the ou~l~'t 411. ~°he second ah~~k valve 43 i~ a~t~aat~~; to permit ~~~nirgg of the outl:~t 421 when the pressure ~,n the ;dump-r~~ce~.~-in~ chamber as c~re~.t~r than. ~.he atmasph~ric~ pressure upon Movement a~ ~~la g~.ur..~p n~~~b~r 4. tn~a-rd the in-~:e-t 2~ ~:g~:itat the ~:rgir~.g ~c~,icn ~rf the u~:yinc~ rn.emb~r thereby permitting gLuid f7.aw~ froth tYzar pump-recei~cring c~:amber g5 into the atma~gher~, a~ hr~s't shown in ~~.gure 3. The o~at~.~t X12 is capable of b~in~ ~lc~ss~d ~r~r tl'1e ~e~o~.~ checl~ valve 43 end the aa~et 3.~3 ~.~ ~~pab~.~ a~
being opened wL~~s~ ~h~ p e~~ur~ ~.~. ~lz~ p~~np--~e~ea.~zn~.
~h~m~~x ~5 i~ Ir~ss thaw t~.e ~'~-~o~pheric: pre~~uxe and the pres'~ure ~.z3: the staring ~p~ce ~3 ~pc~n movement Qf the pump member 4 a~ra~ f ~-tarn the inlet ~ ~. ~ by virtue ~f the ~.~rgi~~ aCtagn of the urging member ~~, t~z~~'eb'~
pertnitt~.ng fl~~aid flog frog. the storing space ~3 i~~~
the p,at'~~-re.ceiva.n~ eh~~b~r ~.5, as ~rs:~t ~~z~~rn igi r ~.gt~z'e ~Q
"The ,sir-~irr~et v~ive 32 ~.~ ~cs~untec~ c~~a. the v~,~ve~
m~t~nt_inc~ vaall, por~~.~n a~ fc~r ~losi~ag the crper~i~g 3~D
of the cover cap 3 . ~'~c~ure ~ ~1'~.~'srttS tie gutt~~-receiv~.rs~
cham3~e~ ~~ ~~.c~: ~h~ ~tor~.ng ~~aee ~~ irt a ~aWci'ut'et ~ta~:~P
1~ result~.~c~ Pram ~~~tin~.e~ re~i.prc~cats.a~~ a~r~ments ~f the pt~rnp ~ae~beo 4 ~.n the put~~~re~eavi~g ci~amber 4~ .
In the tr~~~aum. ~t~te, t~~xe ~r~~z~~ m,~mber 42 is ~~t~pr~~~e~3 lair the atmospheric pxessur~ a.n.d the inlet ~~3 i~ ~l~s~c1 'b~ the f a.r~t. ~h~~'~ vaive 3 ~ . To remove the cover ~~p 29 ~ f~-on the container ~, t~~ air-inlet v~.lve 32 can b~
pu~.~.ed up~w~rd- .way from tie ~~~r~~.ng .~~4, a~ b~~v ~~r~n in ~°~,gure 5, .~o ae tc~ ~aa~oover the ~per~in~ 3~t~~ thereb~a permitting flow of air mrt~r~ tyke a~tm~~phe:~~ into the ~tc~ring space a3 of th:e carxta~rae:r ~ Y ~la~ era rG~tx~ts- x~
~5 actuation of the first c~aeci~ ~~lve fix, opening of the inLe~ 343, and flaw of air from the stc~ririg ~pa~~ 2~
anti the pump-receiving chamber 4~ via the inlet 343..
s The ~zxging member 4~ ~,~ ~ub~~qu~r~tly restored from the ~s~m~r~ssed state ~~a a ne~r_-c~mpre~~~d ~~~t~ when t~a~
pressure in the pu~r~p-r~~p~~r~.n~ ~han~~~ 4~ toc~~ther ~r~.th the urging aotion of the urging m~:z~ber 4~ owercom~
the atmos~sher~.~ p~°~t~sa~.re. ITnder t~~:;~ co~rB.dition, t~e~
c-~~~r cap ~ pan be removed with ea~~ frr~m tea contai~.er ~rhen desired.
Referring aga.ir_. to Figures ~, and 2, t~~ ~~v~~- c~~
3 has a ~a~riph~r~.l ~aali ~c~rti~ri, 33 ~~.arround.i~g t-h~
~~,l~e-mounting wa3:l ~ort~ on 35 anc! fr~~rtted with ~.
da~r~v~ardly .acing anr~ui~.r ~~a~.-~~cez~ri~~ grwc~u~~
therein which i~ e~~f~.a~~~, bar ~ grao~~-~c~nf~.n~..nc~ wall Ari ~nnu3,ar ~.e~:l member ~~~ ~.~ f ttt~d In the s~~l-re~~.ivi~~ ~~re 3~~, ~bzd a~st~t~ as~air~t 't~t~ toy a~aen end ~~(~ o~ the corita~~.~~ ~ ~~ a~ to est~Ialis~ a l~erm~t~.~~11~= s~a~i~2~ ~Lf~~t ~r,~twe~ra the oov~r- yap 3 arid. the t,o~ opera er~d ~3t~ of the ooa~ta~.~~r 2. the ~~a,?
cn~mb~~ 3b ~r~f~ral~ly has twr~ sgaeed~agar~ ar~rxu2~.r an~h.c~r~ng portions. 3~3~ a~xohpred ire twQ ~~~.ent~.v~a xa ~~.Qt~ ~s~. t~~~ ~r~ ~~~~.~d ~.~ ~~~ ~~~~-~~~~-z~~~:~ ~~::~~
352 of the s~ea,l-x~c~i~rin~ ~~oo~sre ~~,i, an anxz~,y'~~.r ~.nt~rmediat~ a:b~tm:~t gort~:c~~ 3a3 t~~~:~ 3;~2~~~~eri~tt~~~~
lavaer ends of the an~~.~red ~cr~ti~ns 3C~2 and that a~t,~ts against t.l~~ toga op.~ri en:d ~~ 0 of t~Z~ c~~r~taircet° 2 f arid ~.n annular ~.nn~x ~~~ti~x~ ~~l tl~~~, pwo~~c~~ downward from cane of tho ari.Ch.ored pc~rtiarl.s 3fl~ ~r~d that ah~t~
against a~ ir~n~r sa;~r~~~e of the ~aerip$Z~z~~xl ~aa~ 22 ref t the container ~ and the grc~c~ve~confinit~c~ ura.ll X52.
Each of the f~rs~. and ~~ear~c~ cheok valves 3~. r ~.rd the air-inlet va~v~ 3~ y~ ~L~~~ide~3 w~.~~. ~ m.ou~afir~
post. 31~, 4Z3 f 323 that sl~di~:gl~ ana nr~n~r~~to~abl.y ~ric~ages the ~SUmp-mounting vaa.Ll port~aora 3~ r tl~
~ralv~-mount~n~ vaall po~'t i~~ 35 a.~d the ~wump meter ~ , respoctively.
Re~~rring to Fic~~~-es~ ~ and ~, a modi~iod assemk~l~r of the cover cap 3 arld th:e pump ct~embr~r ~ i.s ~~aaw~ tt~
1Q h~~e a str~,~~t~re ~irz~ilar tc~ that. ~mplt~y~d in the preferred embodiment . The main ~3if:~er~noe x~o~,ides ~.x~
that, i~ tho tttgdif? ~d ~:s~emb~g~~ th~z~a;~;~ttp-~aur~~,~~1~-~i~i~:
portion 34 has a ~o~~~~ ~~,~, co~fia~.l~.g a hc~ttotll ~it~~
c~~ t-h~ pump- :~o~iving ~harctboz' 45 . '~'h~ l.r~:le~. 543 i~
1~ farmed $z~ the bott.r~m 3~~. of the pump-mounting wall pc~rtiox~ 34 . The cover e~.p 3 fu.rth~r srielude~ an annuL~.r.
wall 3~ wh:ich i~ d~~po~~d ~r~ the pump-r~~el~~r~g charn~er 45, ~rhioh ox,'t~lxti.s upwardly fxoin the 3~ott~~n 3~1 ~f tk~o pumg-mC~ix~.ti~xg wall porta.or~ 34 , ar_d whseh i,~
Z~U formed with a p~tzrallty e~~ angu~:ax°l~ ~pacod apart limits ng slog 3~~. therein and a ~al~a~al~:ty caf e~gag~;t~g fares ~6~ that cor~iine tour ~~.de~ of tl~e ~,~tttiting ~lc~ts 3~1. The pump rr~em~aer ~ ~,~~ a. top will 4~, opposite to the b4ttom 34I of the pump-~~~,g~~,ing wail p9rtion 34 2~ a.r~d eQnf ~.nln~s a top' side of the ~r~t~tp-re~~,~~ing cl!amb~r ~5, and a ps,ural~:ty ox angularlyr spaced apart engaging tongue ~~1 e~ter~d~.r.~g da~s,~~v~ard3y from t'~~~ top ura~:2 ~
into t~h.~ limit~.r~g slobs 361. The engaging ~~rigues 4~1 ~mgag~ ~h~ engaging iac~~ 3~~ of the ~.nn.ular ~aa~7, 36, respect~.v'ely~ v~~Y: t~~ p;~~t~ Fttetttb~x~ 4 ttlt~~eS up~nta~'d~y away from the inlet 343 by vix~~~ ~f t~.~ ~xging a~t~.c~n a~ the u~°gin~ mem~ex~ ~2 s~ as ~o restrict r~.rg~e c~~
movement of the purnp member ~ in the pump-receiving ~hamher 45 and ~o ~.~ ~~ prevent r~mc~vaJ. ~f the manger ~ foam the pump-rece~.v~.ng eh~~ber 4s.
Claims
1.A container assembly comprising:
a hollow container defining a storing space, and having a top open end and a top opening defined by the top open end for access into the storing space;
a cover cap mounted detachably and sealingly on the top open end of the hollow container so as to cover the top opening, the cover cap having a pump-mounting wall portion of a U-shaped cross section that defines a pump-receiving chamber, an inlet formed in the pump-mounting wall portion and in fluid communication with the pump-receiving chamber and the storing space, and a valve-mounting wall portion that extends outwardly from the pump-mounting wall portion and that is formed with an opening which is in fluid communication with the storing space and the atmosphere;
a pump member disposed movably and sealingly in the pump-receiving chamber and movable toward and away from the inlet so as to vary pressure in the pump-receiving chamber by virtue of change in volume of the pump-receiving chamber, and having an outlet in fluid communication with the pump-receiving chamber and the atmosphere;
an urging member for urging the pump member away from the inlet;
a first check valve mounted on the cover cap for closing the inlet, the inlet being opened when pressure in the storing space is greater than that in the pump-receiving chamber, thereby permitting fluid flow from the storing space into the pump-receiving chamber, the inlet being closed by the first check valve when the pressure in the pump-receiving chamber is greater than that in the storing space upon movement of the pump member toward the inlet against urging action of the urging member;
a second check valve mounted on the pump member for closing the outlet, the outlet being opened when the pressure in the pump-receiving chamber is greater than the atmospheric pressure upon movement of the pump member toward the inlet against the urging action of the urging member, thereby permitting fluid flow from the pump-receiving chamber into the atmosphere, the outlet being closed by the second check valve and the inlet being opened when the pressure in the pump-receiving chamber is less than the atmospheric pressure and the pressure in the storing space upon movement of the pump member away from the inlet by virtue of the urging action of the urging member; and an air-inlet valve mounted on the cover cap for closing the opening in the cover cap, the air-inlet valve being manually operable to uncover the opening when desired;
wherein the cover cap has a peripheral wall portion surrounding the valve-mounting wall portion and formed with a downwardly facing seal-receiving groove therein, the container assembly further comprising a seal member that is fitted in the seal-receiving groove and that abuts against the top open end of the container so as to establish a hermetically sealing effect between the cover cap and. the top open end of the container; and wherein the pump-mounting wall portion has a bottom confining a bottom side of the pump-receiving chamber, the inlet being formed in the bottom of the pump-mounting wall portion, the cover cap further including an annular wall which is disposed in the pump-receiving chamber, which extends upwardly from the bottom of the pump-mounting wall portion, and which is formed with a plurality of angularly spaced apart limiting slots therein and a plurality of engaging faces that confine top sides of the limiting slots, the pump member having a top wall opposite to the bottom of the pump-mounting wall portion and confining a top side of the pump-receiving chamber, and a plurality of angularly spaced apart engaging tongues extending downwardly from the top wall into the limiting slots and engaging the engaging faces, respectively, when the pump member moves upwardly away from the inlet so as to restrict range of movement of the pump member in the pump-receiving chamber and so as to prevent removal of the pump member from the pump-receiving chamber.
a hollow container defining a storing space, and having a top open end and a top opening defined by the top open end for access into the storing space;
a cover cap mounted detachably and sealingly on the top open end of the hollow container so as to cover the top opening, the cover cap having a pump-mounting wall portion of a U-shaped cross section that defines a pump-receiving chamber, an inlet formed in the pump-mounting wall portion and in fluid communication with the pump-receiving chamber and the storing space, and a valve-mounting wall portion that extends outwardly from the pump-mounting wall portion and that is formed with an opening which is in fluid communication with the storing space and the atmosphere;
a pump member disposed movably and sealingly in the pump-receiving chamber and movable toward and away from the inlet so as to vary pressure in the pump-receiving chamber by virtue of change in volume of the pump-receiving chamber, and having an outlet in fluid communication with the pump-receiving chamber and the atmosphere;
an urging member for urging the pump member away from the inlet;
a first check valve mounted on the cover cap for closing the inlet, the inlet being opened when pressure in the storing space is greater than that in the pump-receiving chamber, thereby permitting fluid flow from the storing space into the pump-receiving chamber, the inlet being closed by the first check valve when the pressure in the pump-receiving chamber is greater than that in the storing space upon movement of the pump member toward the inlet against urging action of the urging member;
a second check valve mounted on the pump member for closing the outlet, the outlet being opened when the pressure in the pump-receiving chamber is greater than the atmospheric pressure upon movement of the pump member toward the inlet against the urging action of the urging member, thereby permitting fluid flow from the pump-receiving chamber into the atmosphere, the outlet being closed by the second check valve and the inlet being opened when the pressure in the pump-receiving chamber is less than the atmospheric pressure and the pressure in the storing space upon movement of the pump member away from the inlet by virtue of the urging action of the urging member; and an air-inlet valve mounted on the cover cap for closing the opening in the cover cap, the air-inlet valve being manually operable to uncover the opening when desired;
wherein the cover cap has a peripheral wall portion surrounding the valve-mounting wall portion and formed with a downwardly facing seal-receiving groove therein, the container assembly further comprising a seal member that is fitted in the seal-receiving groove and that abuts against the top open end of the container so as to establish a hermetically sealing effect between the cover cap and. the top open end of the container; and wherein the pump-mounting wall portion has a bottom confining a bottom side of the pump-receiving chamber, the inlet being formed in the bottom of the pump-mounting wall portion, the cover cap further including an annular wall which is disposed in the pump-receiving chamber, which extends upwardly from the bottom of the pump-mounting wall portion, and which is formed with a plurality of angularly spaced apart limiting slots therein and a plurality of engaging faces that confine top sides of the limiting slots, the pump member having a top wall opposite to the bottom of the pump-mounting wall portion and confining a top side of the pump-receiving chamber, and a plurality of angularly spaced apart engaging tongues extending downwardly from the top wall into the limiting slots and engaging the engaging faces, respectively, when the pump member moves upwardly away from the inlet so as to restrict range of movement of the pump member in the pump-receiving chamber and so as to prevent removal of the pump member from the pump-receiving chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002440971A CA2440971C (en) | 2003-09-15 | 2003-09-15 | Container assembly having a cover cap provided with a pump member to pump out air from a container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002440971A CA2440971C (en) | 2003-09-15 | 2003-09-15 | Container assembly having a cover cap provided with a pump member to pump out air from a container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2440971A1 CA2440971A1 (en) | 2005-03-15 |
| CA2440971C true CA2440971C (en) | 2007-04-24 |
Family
ID=34318735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002440971A Expired - Fee Related CA2440971C (en) | 2003-09-15 | 2003-09-15 | Container assembly having a cover cap provided with a pump member to pump out air from a container |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2440971C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200198868A1 (en) * | 2017-05-31 | 2020-06-25 | Yung-ming Wang | Sealing bag and method of using the same |
-
2003
- 2003-09-15 CA CA002440971A patent/CA2440971C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2440971A1 (en) | 2005-03-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20210915 |