CA2130580A1 - Child resistant nozzle for trigger sprayer - Google Patents
Child resistant nozzle for trigger sprayerInfo
- Publication number
- CA2130580A1 CA2130580A1 CA002130580A CA2130580A CA2130580A1 CA 2130580 A1 CA2130580 A1 CA 2130580A1 CA 002130580 A CA002130580 A CA 002130580A CA 2130580 A CA2130580 A CA 2130580A CA 2130580 A1 CA2130580 A1 CA 2130580A1
- Authority
- CA
- Canada
- Prior art keywords
- nozzle cap
- cap
- side walls
- nozzle
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/12—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means capable of producing different kinds of discharge, e.g. either jet or spray
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
- B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
- B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
- B05B1/3436—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
- B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
- B05B11/0029—Valves not actuated by pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1009—Piston pumps actuated by a lever
- B05B11/1011—Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1043—Sealing or attachment arrangements between pump and container
- B05B11/1045—Sealing or attachment arrangements between pump and container the pump being preassembled as an independent unit before being mounted on the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1061—Pump priming means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1073—Springs
- B05B11/1074—Springs located outside pump chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1073—Springs
- B05B11/1077—Springs characterised by a particular shape or material
Abstract
The trigger operated fluid dispensing device (10) comprises a body (14) having a front end (18) including opposed sidewalls (780 and 782), a nose bushing (16) and at least one blocking member (72) and a nozzle assembly (58) including the nose bushing (16), a nozzle cap (60) received on the nose bushing (16) and cooperating structure for selectively establishing an off, a spray or a stream position of the nozzle cap. The nozzle cap (60) is mounted for rotation on the nose bushing (16) between the three positions and the nozzle cap (16) has engaging structure (754, 756 and 760) therein positioned adjacent the blocking member (72) engaging the blocking member (72) when someone attempts to rotate the nozzle cap (60) without inwardly deflecting the body sidewalls (780 and 782).
Description
r~v~ v D R~SIS~AN~ SPR~Y~R ~08ZL~ ASS~MBL~
~ACX~OUND OF T~ I~VEN~IO~
1. F~eld o~ the ~n~e~tlo~.
The pre~ent invention relate~ to a trigger operated 5 dispensing device for mounting to the top neck of a torage container. Although ~uch devices, known a3 triggex ~prayer~, can be reu~ed, often ~ime~ they are disposed of.
A nozzle a~sembly i9 attached to the discharge end of the trigger sprayer and include~ a rotatable nozzle cap rotatable 10 to three d~fferent discharge position~. A BTOP po8it~0n closes the di~rhArge end, a STR~AM position provide~ a focu~ed ~tream of fluid, and a SP~A~ position provide~ a spray or fog-like charge of the fluid.
To ~void acces~ to the content~ of the bottle to childr~n 15 through the trigger sprayer, the rotatable nozzle cap remain~
in the 8TOP po~ition and cannot be moved ea~ily by children unless the trigger ~prayer is mAnipulated in ~ special manner.
For this purpo~e~ the nozzle cap ha~ at least one internal lug or catch adapted to engage at le~t one prong or leg 20 extending from ths body of the spr~yer unle~ the body î~
squeezed to deflect the prong or prongs inwardly ~o the lug ~ insid~ the c~p can b~ rotated pa~t the prong a~ the ~ap i9 :~ rotated~ ~he lug d~nnot bo disen~aged from the prong ea~ily, th~reby providing ~ ~hild re~istant trigger ~px~yer nozzle 25 a98em~1y.
~ACX~OUND OF T~ I~VEN~IO~
1. F~eld o~ the ~n~e~tlo~.
The pre~ent invention relate~ to a trigger operated 5 dispensing device for mounting to the top neck of a torage container. Although ~uch devices, known a3 triggex ~prayer~, can be reu~ed, often ~ime~ they are disposed of.
A nozzle a~sembly i9 attached to the discharge end of the trigger sprayer and include~ a rotatable nozzle cap rotatable 10 to three d~fferent discharge position~. A BTOP po8it~0n closes the di~rhArge end, a STR~AM position provide~ a focu~ed ~tream of fluid, and a SP~A~ position provide~ a spray or fog-like charge of the fluid.
To ~void acces~ to the content~ of the bottle to childr~n 15 through the trigger sprayer, the rotatable nozzle cap remain~
in the 8TOP po~ition and cannot be moved ea~ily by children unless the trigger ~prayer is mAnipulated in ~ special manner.
For this purpo~e~ the nozzle cap ha~ at least one internal lug or catch adapted to engage at le~t one prong or leg 20 extending from ths body of the spr~yer unle~ the body î~
squeezed to deflect the prong or prongs inwardly ~o the lug ~ insid~ the c~p can b~ rotated pa~t the prong a~ the ~ap i9 :~ rotated~ ~he lug d~nnot bo disen~aged from the prong ea~ily, th~reby providing ~ ~hild re~istant trigger ~px~yer nozzle 25 a98em~1y.
2. Do~r~pt~o~ o~ T~ ~rlo~ Axt.
Example- of pre~iou~ly propo3ed t.igger operated pr~yer~ are dificlosed in the following patent~:
U.~.:P~n~ No. ~ n~
30 . 4,516,695 Garneau 4,346,821 We3ner ~t al.
4,204,821 Re~ve SU~M~RY OF ~ INV~TTO~
Ac~ording to the present invention there i~ provided a ~: trigger oper~ted fluid di~pensing device ~or mounting to a container. The dispen~ing device compri9e~: a body havi~g a front end including oppo~ed side walls at the fro~t end, a no~e bushing extending from the front end between the side walls and 40 at least one, elongate, nozzle cap blocki~; member which -~ubstitute sheet-213 0 ~ 8 0 ~ 9 AUG 1993 extends from the body front end and which is adapted to engageand prevent rotation of a nozzle cap upon rotation of the cap without manipulation of the body side wall~; a nozzle assembly at the front end of the body including the nose bu~hing, a 5 nozzle cap received on the nose bushing and cooperating structure on or in the nozzle cap and on or in the no~e bushing for selectively establishing an off position of the nozzle cap, a spray position of the nozzle cap or a stream position of the nozzle cap upon rotation of the nozzle cap; the nozzle cap 10 being mounted for rotation on the nose bushing between the three positions and the nozzle cap having engaging structure therein positioned adjacent the blocking member for engaging the blocking member when someone attempts to rotate the nozzle cap without manipulating the body side wall~; and, the site lS walls of the body being deflectable inwardly of the body 30 that when the side walls are squeezed inwardly, they engage and move inwardly the blocking member to permit the engaging structure in the nozzle cap to move past the blocking member when the nozzle cap is rotated at the same time the body side 20 walls are squeezed.
;~ BE~IEF DESCRIP2ION OF T~E DE~AWII~G8 ::FIG. 1 is a perspective view of a trigger sprayer con~tructed according: to the teachings of the present :~ 25 invention.
FIG. 2 i~: an exploded perspective view of the trigger prayer shown in FIG. 1 and ~how~ a locking ring prior to its d~tachment from:~a cylindrical base of the sprayer body.
:~ FIG. 3 is a vertical sectional view of the trigger sprayer ~; 30~ in lt~ at rest position where a spring between a trigger and ;the sprayer body~::biases the trigger and a piston rod coupled : thereto to the mo~t outward position.
FIG. 4 is a front elevational view of the front end of the sprayer body and a nose bushing that extend~ fro~ the front end 35 of the body of~the trigger ~prayer shown in FIG. 2, but without a pull-away piece mounted at the end of the body.
FIG. 5 is a back elevational view of the nozzle cap of a nozzle assembly shown in FIG. 2.
-substitute sheet-, r~llu~ 7 ,~ I U ~ U ~ ~
2~3Q~0 U~:J~ 9 ~llD6~3 FIG. ~ is an exploded view in longitudinal vertical section of the nozzle cap and nose bushing shown of the nozzle assembly shown in FIG. 2 with portions broken away.
FIG. 7 is a longitudinal, generally vertically sectional 5 view of ths nozzle cap and nose bu~hing coupled together a~
shown in FIG. 1~ with portion~ broken away.
FIG. 8 i~ a ~ertical ~ectional view through the nozzle a~embly shown in FIGo 1 after a pull-away piece i~ removed and is taken along line 8-8 of FIG. 7.
FIG. 9 is a vertical sectional view through the nozzle as~embly, similar to the view shown in FIG~ 8, but showing ~he 3ide walls of the sprayer body squ2ezed in to move two legs or prong.~ extending from the body out of blocking positisn relative to two lugs on the inner wall of the nozzle cap.
FIG. 10 is a front end elevational view of the sprayer body and the no~e bushing that extend~ from the front end of the body of the trigger sprayer 3hown in FIG. 2, ~imilar to FIG. 4, but with a pull-away piece mounted at the front end of the body.
FIG. 11 i~ a per~pective ~iew of the pull-away piece ~: mounted at the front end of the body a~d constructed according to the teaching3 of the present inventisn.
; FIG. 12 i~ a ~ide elevational view of the pull-away piece : shown in FIG~ 11.
FIG. 13 i~ a vertical sectional back view of the pull-away piece and i5 taken along line 13-13 of FIG. 12.
~;~ DESC~IP~ION OF TH~ P~EF~RR~D ~MBODIMEN~(S~
~: Referring now to the drawings in greater detail, there is illustrated in FIG. 1 a perspective view of an all ; 30 synthetic/pla~ti~ trigger ~prayer 10 coupled to a bottle 12.
An exploded per~pective view of the part of the trigger ~prayer 10 is ~hown in more detail in FI~. 2~
The trigger ~prayer 10 includes a bady 14, a no~e bu~hing 16 at a discharge end 18 of the body 14, a no2212 tamper proof 35 pul$ away piece 20, a top portion 22 and a hand gripping formation 24 ex~ending rearwardly from the top portion 22 of :~ ~he body 14 and then downwardly to a cylindrical base 26 of the body 14. The base 26 i8 held by a locking ring 28 to a neck 30 -substitute sheet-.
2-V~ v 70 1 UCU ~ v IPEWS 19 AUG t993 of the bottle 12.
A trigger 32 having a front side 31 is pivotally mounted to the body 14 by having two cy}indrical pins 34, molded on the top end of two opposed side walls 36 o~ the trigger 32, 5 inserted into two corresponding holes 38 in the body 14 of the trigger sprayer 10.
As shown in FIG. 2, a plastic spring as~embly 40 i8 placed between the body 1~ and the trigger 32 to urge the trigger 32 always back into its home position. Coupled to the trigger 32 0 i8 a piston 42 having an outer pi-Rton rod 44 which-connects with the trigger 32 and an inner cylindrical end 46 which is received in a cylindrical opening 48 in the body 14 for the purpose of varying the volume in a pumping chamber defined in the opening 48.
~; 15 The trig~er 32, the qpring assembly 40, the piston 4~ and the cylindrical opening 48 form and define primary components of a pumping mechanism 49.
:~ ~ A valve:intake stem S0 i~ received into the bottom of the cylindrical base:26 and ha~ a dip tube 52 releasably fixed : 20 thereto and depending therefrom for insertion into the bottle 12.
:: ~ A safe and child resistant sprayer/bottle connection is : provided and ~includes locking tabs 53 with lug receiving openings 54 ~formed: in the cylindrical ~ide wall of the 2:5 cylindrical base~26:and locking lug~ on the bottle nec~ 30 and locked in pl~ce~by the locking ring 28.
: When the moldet sprayer body i~ removed from a mold, the ; iocking ring 28, connected to the cylindrical base 26 of the body 14 by ix links, points, fillets or webs 57 which are 30 nece~ ary for~molding the locking ring 28 together with the body 14, i~ broken away from the cylîndrical ba~e 26 by :~ breaking the fillets 57 and moved upwardly on the base 26.
~: During assembly of the part3 of the trigger sprayer 10, the : locking ring 28~is moved downwardly over the cylindrical base 35 26.
A nozzle assembly 58 iq provited and includes a rotAtable :: nozzle cap 60 having a forwardly extending cylindrical ~ :, extension 62. The nozzle cap 60 is mounted on the nose bushing substitute sheet-: ~
r~J~v ~JI u~u ~ ~
, ., . 5 ~PEMIS 19 ~UGlg9~
16 extending from a cylindrical por~ion 6 of the body 14 and include an annular band 66 for holding the nozzle cap 60.
Three different positio~s of the nozzle cap 60, a S~O~
position, a SPRAY po~ition, and a STREAM position are provided.
When the nozzle assembly 58 is mounted to the body 14, a mounting block 67 of the piece 20 i9 snap fittingly received through an opening 68 in the top portion 22. At the ~ame time, fork arms 69 of the piece 20 extend through notche~ 70 in the top portion 22 and/or notches 71 in the top wall of the cap 60 10 between one of two flexible locking leg~ or prongs 72 and the cylindrical portion 64 for securing the nozzle cap 60 in it3 STO~ position, thereby ensuring a tamper proof and child resi~tant locking of the trigger sprayer nozzle as~embly 58 to the body 14~
The nozzle assembly 58 i3 mounted on the dis~harge end 18 of ~rigger sprayer lO, a~ described above. The top portion 22 of the body 14 extend~ rearwardly to a rear end 73 of the hand gripping formation 24 and the~ ~lants forwardly and downwardly from the rear end 73 to the cylindrical base 26.
The ~ix contact fillets or webs 57 are uniformly distributed around the lower end of the cylindrical base 26 and : ar~ initially integral with the locking ring 28. During the molding proce~, the contact fillets or webs 57 are broken and ~he locking ri~g 28 is moved upwardly relative to the 25 cylindrieal ba~e 26. Later, when ~he locXing ring 28 i~ moved downwardly on the ba~e 26, an annular groove 74 within the ~: locking ring 28 ~nap-fittingly mates with an annular rib 75 on th~ ba~e 26. Th~ upper po~ition of the loc~ing ring 28 is the pr~ application-to-a-bottle positio~ and the loc~ing ri~g 28 is : 39 held in this po~ition by fri~tional engagement of the inner :~ wall of the locking ring 28 with the rib ~egments 76 provided on th~ outer cylindrical wall of the cylindrical base 26. The uppe~, partially annular rib segment~ 76 on the outer cylindrical wall of the cylindrical base 26 loca~e a~d to some 35 exte~t limit upward movement of the locki~g ring 28.
A~ shown in FIG. 3, molded within the cyli~drical base 26 to a top wall 314 of the cylindrical base 26 i~ a ~mall diameter ~eal ring 316. The seal ring 316 is de3igned to seal -substitute sheet-~PEA~JS 1 9 AUG lg93 ; 6 2130'~8~
against the inner diameter of the bottle neck 30. The seal ring 316 has a bevelled end 318 at its lower side to facilitate insertion of the bottle neck 30 into the base 26 and around the seal ring 316.
Within the inner area o~ seal ring 316 i~ an opening 320, having a shape according to the shape of the intak~ stem 50 which i~ generally oval in cross-section. The intake stem 50 is pre~s-fitted into the opening 320 until ridge~ 322 on the intake stem 50 snap into mating mounting grooves on the inner 10 surface of the wall of the ope~ing 320. In this way, an air tight seal is provided. The diptube 52 i8 releasably fixed in the center of the intake stem 50. The length of the diptube 52 depends on the size o~ the bottle 12. However, it i~
recommended that the diptube 52 should extend to the bottom of 15 the bottle 12 but shouldn't touch it.
The cylindrical opening 48 is located inside the body 14 of the trigger sprayer 1~. The piston cylindrical end 46 ~its tightly into the cyli~drical opening 48 to create a pumping chamber 324 having a variable volume between a fixed back wall 20 326 of the cylindrical opening 48 and a rearwardly ~acing w~ll 328 of the piYton cylindrical end 46. The fix~d wall 326 of : th~ pumping chamber 324 has an inlet flap valv~ 330 ~ituated in ~:~ the lower part thereof and an opening 332 in th~ upper part thereof. An orifice 334 through a wall of the intake stem 50 ~5 is located to mate or register with the inlet flap valYe 330 and to e~tablish an inlet passageway. The inlet pa~3ageway i~
~: provided by the ho~low diptube 52, the intak~ ~tem 50 and the ;~; orifice 334.
The opening 332 is located to mate or regi~ter with an ~: 30 outlet flap valve 33~ on the top sid~ of intake ~tem 50. Inlet : flap valve 330 and outlet flap valve 336 control the ~luid flow into a~d-out of pumping chamber 324.
The trigger 32 i9 pivotally mounted on the body 14 of the trigger ~prayer 10 by i~serting the two laterally extending 35 pin~ 34 on the upper par~ of the trigger 32 into the two corresponding hole~ 38 in the body 14.
~: Referring now to FIG. 4, which i9 a fron~ elevational view ~:~ of the nose bu~hing 16, it will be apparent that the nose -substitute sheet-: ~
7 ~130~8~ lPEAfJS I9 AUG1993 j~. .
bushing 16 includes a cylindrical extension 702 having an inner cylindrical cavity 704. The cylindrical extension has a first slot 706 through the cylindrical wall thereof which is a so-called tangential 810t for directing liquid tangentially into 5 the cylindrical cavity 704 and has a second, so-called radial, slot 708 for directing liquid radially into the cylindrical cavity 704.
The cylindrical extension 702 is small-in-diameter and is located coaxially with an outer aylinder 710 having a larger 10 diameter. In the embodiment ~hown in FIG. 4, the smaller : cylindrical extension 702 extends outwardly from a web 712 of : material which fixes the cylindrical extension 702 in the po~ition shown ant defines between, an inner wall 714 of the outer cylinder 710, two waterways 720 and 722 which communlcate - : 15 liquid to be sprayed in a SP~AY or ST~EAM to the tangential slot 706 or to the radial slot 708.
Also, it will be apparent from FIG. 4 that the top of the body 14 between the slot~ 70 has a tab extension 726 which extends partially into a locating slot 728 in the back 20 underside of a top side wall 730 of the nozzle cap 60 as shown in:FIG. 5.
,~
With reference to FIG. 5, ~t will be seen that the nozzle cap 60 ha~ a generally square configuration with the top side wa}l 730 having S~OP indicating indicia. A left side wall 734 : 25 has 8P~AY indicating indicia thereon and a right side wall 738 : which ha~ SIREAN~indicating indicia.
Also, the~nozz:le cap 60 has a bottom wall 742, as shown in FIG. 5.
: Within the~envelope of the forward portions of the walls 30 730, 734, 738~ and 742 and extending rearwardly from a front wall 744 of~th-~nozzle cap 60 is a fir~t outer cylinder 746 which- is adapted~to receive therein the outer:cylinder 710 of the noae bushing~l6. Then, also extending rearwardly from the : : front wall 744 within the outer cylinder 746 is a smaller-in-35 diameter cylinder 748 having a slot 750 extending radially therethrough:which is adapted, upon selective rotation of the nozzle cap 60, to mate with either the tangAential ~lot 706 or the radial 810t 708 in the cylindrical extension 7G2. The -substitute sheet-~:' :~:
~2~ 30 8~ IPEA~J~ 19 AuGl993 smaller-in-diameter cylinder 748 is adapted to be received over the cylindrical extension 702.
In a manner which is ~onventional in the art, when the nozzle cap 60 is rotated counterclockwise 90~ from the ~TOP
5 position to the SPRAY position, liquid in the waterway 720 will pass through the slot 750 and throuyh the mating 910t 706 into the cylindrical cavity 704 and in a swirl forwardly to an outlet orifice 752 in the front wall 744 of the nozzle cap 60.
In a similax manner, when the nozzle cap 60 i~ rotated 10 clockwi~e 90 from the STOP position to the S~RE~M po~ition, the slot 750 in the wall of the cylinder 748 will mate or register with the radial slot 708 whereby liquid can flow from the waterway 722 through the siot 750 and through the ~lot 708 radially into the cylindrical ~avity 704 and then axially 15 forwardly and out of the orifice 752.
In this way, in a manner similar to previously proposed nozzle as~emblies, liquid can be directed through the waterways 720 and 722 to selectively aligned, axially extendîng or : radially extending, slots for communicating liquid in a ~wirl 20 or in an axial path to the orifice 752 for effecting a desired discharge of liquid in either a coni~al spray or mist-like di~charge or in a substantially axial STREAM type dischar~e.
A}so, it will be understood that different formations can be utilized ~or effe¢ting the mating of one or more tangential 25 slots through a radial slot to a waterway or one or more radial slots to a radial or longitudinal 310~ and thence to a waterway, as di~clo~ed in the Quinn et al U.S~ Patent No.
4,234,128 or the Dobb~ et al U.S. Patent No. 4,706,888, the disclosure3 of whiah are incorporated herein by reference.
~; 30 Al~o in FIG. 5, there i~ illu~ra~ed a fir~t formation 754 in the lowex area on the in~ide of the ~ide wall 734. Thi~
formation 754 defines a lug, bo~s or detent 7~4 that ¢xtend3 angulariy upwàrdly and inwardly from the wall 734 inside the nozzle cap 60 to an edge or catch 755. In like manner, a lug, 35 bos~ or detent 756 in the lower area of the wall 738 ex~end3 inwardly from the wall 738 inside the nozzle cap 60 to an edge :~ or catch 757.
As will be described in greater detail hereinafter, the -substitute sheet :
IPEA~IS I 9 AU G l993 9~130~80 lugs 754 and 756 normally are positioned in the nozzle assembly 58 beneath the legs or prongs 72.
The blocking engagement of the leg~ or prongs 72 relative to the lug~ or projections 754 and 756 normally prevents S rotation of the nozzle cap 60 of the nozzle as~embly 58 u~til the pull-away piece 20 i9 pulled away to remove the fork armq 69 from the locking position of each fork arm 69 between the cylindrical portion 64 and a leg or prong 72, and unles3 and until a user squeezes the side walls of the body 14 in the ~ide 10 wall areas 780 and 782 at the same time the u~er rotates the nozzle cap 60.
The blocking position of the pronss 72 i~ ~hown in FIG~ 8.
Then, a~ shown in FIG. 9, when the wall area~ 780 ~nd 782 o the body 14 are squeezed or pushed inwardly to move the legs or 15 prongs 7~ toward the cylindrica~~portion 64 and out of blocking or catching engageme~t with the lug~ 754 and 756, the nozzle cap 60 can be rotated clockwise or counterclockwise, a3 ~hown : in phantom in FIG. 9.
As shown in FIG. 9, after the wall area~ 780 and 782 are 20 squeezed to move th~ legs 72 out of bloc~ing engagement with respect to the lugs 754 and 756, partiGularly the lug 754, the nozzle cap 60 can be rotated counterclockwise 90 to the SPRAY
position.
In thi~ position, the waterways 720 and 722 commu~icate 25 through the slot 750 and the slot 796 to the cylindrical cavity 704 for effecting a ~wirl of liquid to the out~et orifice 752 ~: ~ in the front wall 744 of the n~zzle cap 60 thereby to effect :~ the SPR~Y, mist or fog-like discharge of liquid from the nozzle `cap 60.
30When the nozzle cap 60 i~ rotated clockwise 90 after the prong3 or legs 72 have been squeezed inwardly, the lug or ; projection 756 then can move p~st the leg 72. :
Each lug 754, 756 has an upper surfa`ce 76~ extending to a surface 762 that is close to parallel to the plane of the ~ide ~: 35 wall 734 or 738, the intersection of these 3urface~ 760, 762 being the edge or catch 755 or 757.
It will be noted that the~ extension tab 726 having inclined side edges 784 and 786 is adapted to engage on one -substitute sheet-IPEA~JS I 9 AUG ~993 2130 ~80 side or the other the lug 754 or the lug 756 to prevent further rotation of the nozzle cap 60, counterclockwise or clockwise thereby to ensure that the nozzle cap 60 can only be moved from the STOP position to the SPRAY position or from the S~OP
5 position to the STREAM po~ition.
With reference to FIGS. 2 and 10, it will be understood that the mounting block 67 of the pull-away piece 20 has a generally rectangular planar body 801 and i~ pressed downwardly after placement over the top portion 22 to snap-fittingly lock 10 the mounting block 67 in the opening 68 in the top portion 22 of the body 14. At the same time, the fork arms 69, each having a curved inner surface 802, are received through the ~: spaced apart slots or notches 70 in the top portion 22 at the : front end thereof ant through the slots or notches 71 in the 15 rear edge of the top wall 730 of the nozzle cap 60, with the curved surfaces 802 being received around the cylindrical portion 64 of the body l4 and having lower ends 804 received between the cylindrical portion 64 and the spaced apart leg~ or prong3 72.
With the lower ends 804 of the fork arms 69 positioned in thi~ manner, inward movement of the legs or prongs 72 when the wall aress 780 and 782 of the body 14 are squeezed is pr~vented.
A~ a result, if one tried to rotate the nozzle c~p 60, 25 such rotation i8 prevented, on the one hand by the fork arms 69 extending through the mating ~lot~ or notches 70 and 71 in the top wall portion:22~of tbe body 14 and the top wall 730 of the nozzle cap 60;and, on~th- other hand, by the blocking po3ition of the fork arms 6:9 which~prevent inward movement of the prongs 30 72 to enable the~lugs ?54 and 756 to be moved pa~t the prongs 72 upon either:olookwise or counterclockwise attempted rotation of the nozzle cap 60.
As best shown in FIG.~ 11, the pull-away piece 20 has at the front end thereof a rectangular recess 806 which is adapted 35 to be re~eived over the extension tab 726. The curved surfaces 802 extend downward:ly and laterally on the inner side of the fork arms 69 from the edges of the rectangular recess 806.
A top rear portion or pull tab 808 of the pull-away piece substitute sheet-:~
~ 7 ~J ~ U C lJ ~ ~
112l 3o jgo . IPEAIUS 19 AUG1993 20 has PU~L indicia 810 thereon.
Further, to facilitate pulling of the pull-away piece 20, the rear underside of the pull tab 808 is beveled upwardly at 812 a~ shown in FIG. 12.
The mounting block 67 is positioned below the planar body 801 of the pull away piece 20 beneath a recess 815 in the planar body 801 and is connected to fro~t and back edges 816, 817 of thi4 receqs 815 by three webs or fillet~ 818, as best shown in FIG. 13.
The mounting block 67 has a curved lowex ~urface 820 with a centrzl longitudinally extending slot 822 separating the mounting block 67 into left and right prong portions 824 and 826. Each prong portion 824 and 826 ha~ an inclined surface 828, 830 which inclines upwardly and laterally outwardly from -15 the curved surface 820 to a shoulder 832, 834, as best ~hown in FIG. 13.
It will be under~tood that when the mounting block 67 i~
pushed downwardly through the opening 68, the inclined surfaces 82U and 830 engage the side~ o~ the opening 68 and the slot 822 20 allows the prong portions 824 and 826 to be deflected inwardly until ~he shoulder~:832:and 834 are moved pa~t lower side edges 835 and 836 of the opening 68 and snap into a locki~g po~ition :~ beneath the top wall portion 22 of the body 14 adjac~nt the side edges 835, 836 of the opening 68. The cur~ed surface 820 ~:25 will then re~t upon the upper surface of the cylindrical ~: portion 64 perhaps with a slight interference fit between the cylindrical portion 64 and the underside of the top wall ~urface 22.
:A3 shown in FIG. 12, the planar body 801 ha~ ~ tran~verse 30 g~oov~ 840 in a lower ~urface 842 thereof to ~acilitate bending of th~ pull tab 808.
The pull-away piece 20 provides tamper evident structure for the nozzle assembly 58. In ~his respect, if the pull-away piece 20 is broken or mi9Ying~ that is evidence that the nozzle ~: 35 assembly of the ~rigger sprayer has been tampered with.
In use, a user will grip the pull t b 808 at the rear end of the break away piece 20 and pull upwardly, with the bevel ~: 812 facilitating gripping of the pull tab 808 and the -substitute sheet-)s 9~ /0~07 ~
- ` 2~ fl ''8n ; iPEA~JS 19 ~UG1993 transverse groove 840 facilitating bending of the pull tab 808 upwardly. As the pull tab 808 is pulled upwardly, first the webs or fillets 818 at the back edge 817 of the rece~s 815 are broken followed by breaking of the webs or fillet~ 818 at the 5 front edge 816 of the recess 815. After the web~ or fillets 818 are broken, the pull-away piece 20 can be ea-qily removed from the sprayer body to remove the fork arms 69 from the mating slot~ or notches 70 and 71 and to remove the lower ends 804 of the fork arms 69 from a blocking position between the 10 cylindrical portion 64 and the legs or prongs 72 to enable a user to use the tFigger sprayer 10.
:~ :
: - :
:~
-substitute sheet-
Example- of pre~iou~ly propo3ed t.igger operated pr~yer~ are dificlosed in the following patent~:
U.~.:P~n~ No. ~ n~
30 . 4,516,695 Garneau 4,346,821 We3ner ~t al.
4,204,821 Re~ve SU~M~RY OF ~ INV~TTO~
Ac~ording to the present invention there i~ provided a ~: trigger oper~ted fluid di~pensing device ~or mounting to a container. The dispen~ing device compri9e~: a body havi~g a front end including oppo~ed side walls at the fro~t end, a no~e bushing extending from the front end between the side walls and 40 at least one, elongate, nozzle cap blocki~; member which -~ubstitute sheet-213 0 ~ 8 0 ~ 9 AUG 1993 extends from the body front end and which is adapted to engageand prevent rotation of a nozzle cap upon rotation of the cap without manipulation of the body side wall~; a nozzle assembly at the front end of the body including the nose bu~hing, a 5 nozzle cap received on the nose bushing and cooperating structure on or in the nozzle cap and on or in the no~e bushing for selectively establishing an off position of the nozzle cap, a spray position of the nozzle cap or a stream position of the nozzle cap upon rotation of the nozzle cap; the nozzle cap 10 being mounted for rotation on the nose bushing between the three positions and the nozzle cap having engaging structure therein positioned adjacent the blocking member for engaging the blocking member when someone attempts to rotate the nozzle cap without manipulating the body side wall~; and, the site lS walls of the body being deflectable inwardly of the body 30 that when the side walls are squeezed inwardly, they engage and move inwardly the blocking member to permit the engaging structure in the nozzle cap to move past the blocking member when the nozzle cap is rotated at the same time the body side 20 walls are squeezed.
;~ BE~IEF DESCRIP2ION OF T~E DE~AWII~G8 ::FIG. 1 is a perspective view of a trigger sprayer con~tructed according: to the teachings of the present :~ 25 invention.
FIG. 2 i~: an exploded perspective view of the trigger prayer shown in FIG. 1 and ~how~ a locking ring prior to its d~tachment from:~a cylindrical base of the sprayer body.
:~ FIG. 3 is a vertical sectional view of the trigger sprayer ~; 30~ in lt~ at rest position where a spring between a trigger and ;the sprayer body~::biases the trigger and a piston rod coupled : thereto to the mo~t outward position.
FIG. 4 is a front elevational view of the front end of the sprayer body and a nose bushing that extend~ fro~ the front end 35 of the body of~the trigger ~prayer shown in FIG. 2, but without a pull-away piece mounted at the end of the body.
FIG. 5 is a back elevational view of the nozzle cap of a nozzle assembly shown in FIG. 2.
-substitute sheet-, r~llu~ 7 ,~ I U ~ U ~ ~
2~3Q~0 U~:J~ 9 ~llD6~3 FIG. ~ is an exploded view in longitudinal vertical section of the nozzle cap and nose bushing shown of the nozzle assembly shown in FIG. 2 with portions broken away.
FIG. 7 is a longitudinal, generally vertically sectional 5 view of ths nozzle cap and nose bu~hing coupled together a~
shown in FIG. 1~ with portion~ broken away.
FIG. 8 i~ a ~ertical ~ectional view through the nozzle a~embly shown in FIGo 1 after a pull-away piece i~ removed and is taken along line 8-8 of FIG. 7.
FIG. 9 is a vertical sectional view through the nozzle as~embly, similar to the view shown in FIG~ 8, but showing ~he 3ide walls of the sprayer body squ2ezed in to move two legs or prong.~ extending from the body out of blocking positisn relative to two lugs on the inner wall of the nozzle cap.
FIG. 10 is a front end elevational view of the sprayer body and the no~e bushing that extend~ from the front end of the body of the trigger sprayer 3hown in FIG. 2, ~imilar to FIG. 4, but with a pull-away piece mounted at the front end of the body.
FIG. 11 i~ a per~pective ~iew of the pull-away piece ~: mounted at the front end of the body a~d constructed according to the teaching3 of the present inventisn.
; FIG. 12 i~ a ~ide elevational view of the pull-away piece : shown in FIG~ 11.
FIG. 13 i~ a vertical sectional back view of the pull-away piece and i5 taken along line 13-13 of FIG. 12.
~;~ DESC~IP~ION OF TH~ P~EF~RR~D ~MBODIMEN~(S~
~: Referring now to the drawings in greater detail, there is illustrated in FIG. 1 a perspective view of an all ; 30 synthetic/pla~ti~ trigger ~prayer 10 coupled to a bottle 12.
An exploded per~pective view of the part of the trigger ~prayer 10 is ~hown in more detail in FI~. 2~
The trigger ~prayer 10 includes a bady 14, a no~e bu~hing 16 at a discharge end 18 of the body 14, a no2212 tamper proof 35 pul$ away piece 20, a top portion 22 and a hand gripping formation 24 ex~ending rearwardly from the top portion 22 of :~ ~he body 14 and then downwardly to a cylindrical base 26 of the body 14. The base 26 i8 held by a locking ring 28 to a neck 30 -substitute sheet-.
2-V~ v 70 1 UCU ~ v IPEWS 19 AUG t993 of the bottle 12.
A trigger 32 having a front side 31 is pivotally mounted to the body 14 by having two cy}indrical pins 34, molded on the top end of two opposed side walls 36 o~ the trigger 32, 5 inserted into two corresponding holes 38 in the body 14 of the trigger sprayer 10.
As shown in FIG. 2, a plastic spring as~embly 40 i8 placed between the body 1~ and the trigger 32 to urge the trigger 32 always back into its home position. Coupled to the trigger 32 0 i8 a piston 42 having an outer pi-Rton rod 44 which-connects with the trigger 32 and an inner cylindrical end 46 which is received in a cylindrical opening 48 in the body 14 for the purpose of varying the volume in a pumping chamber defined in the opening 48.
~; 15 The trig~er 32, the qpring assembly 40, the piston 4~ and the cylindrical opening 48 form and define primary components of a pumping mechanism 49.
:~ ~ A valve:intake stem S0 i~ received into the bottom of the cylindrical base:26 and ha~ a dip tube 52 releasably fixed : 20 thereto and depending therefrom for insertion into the bottle 12.
:: ~ A safe and child resistant sprayer/bottle connection is : provided and ~includes locking tabs 53 with lug receiving openings 54 ~formed: in the cylindrical ~ide wall of the 2:5 cylindrical base~26:and locking lug~ on the bottle nec~ 30 and locked in pl~ce~by the locking ring 28.
: When the moldet sprayer body i~ removed from a mold, the ; iocking ring 28, connected to the cylindrical base 26 of the body 14 by ix links, points, fillets or webs 57 which are 30 nece~ ary for~molding the locking ring 28 together with the body 14, i~ broken away from the cylîndrical ba~e 26 by :~ breaking the fillets 57 and moved upwardly on the base 26.
~: During assembly of the part3 of the trigger sprayer 10, the : locking ring 28~is moved downwardly over the cylindrical base 35 26.
A nozzle assembly 58 iq provited and includes a rotAtable :: nozzle cap 60 having a forwardly extending cylindrical ~ :, extension 62. The nozzle cap 60 is mounted on the nose bushing substitute sheet-: ~
r~J~v ~JI u~u ~ ~
, ., . 5 ~PEMIS 19 ~UGlg9~
16 extending from a cylindrical por~ion 6 of the body 14 and include an annular band 66 for holding the nozzle cap 60.
Three different positio~s of the nozzle cap 60, a S~O~
position, a SPRAY po~ition, and a STREAM position are provided.
When the nozzle assembly 58 is mounted to the body 14, a mounting block 67 of the piece 20 i9 snap fittingly received through an opening 68 in the top portion 22. At the ~ame time, fork arms 69 of the piece 20 extend through notche~ 70 in the top portion 22 and/or notches 71 in the top wall of the cap 60 10 between one of two flexible locking leg~ or prongs 72 and the cylindrical portion 64 for securing the nozzle cap 60 in it3 STO~ position, thereby ensuring a tamper proof and child resi~tant locking of the trigger sprayer nozzle as~embly 58 to the body 14~
The nozzle assembly 58 i3 mounted on the dis~harge end 18 of ~rigger sprayer lO, a~ described above. The top portion 22 of the body 14 extend~ rearwardly to a rear end 73 of the hand gripping formation 24 and the~ ~lants forwardly and downwardly from the rear end 73 to the cylindrical base 26.
The ~ix contact fillets or webs 57 are uniformly distributed around the lower end of the cylindrical base 26 and : ar~ initially integral with the locking ring 28. During the molding proce~, the contact fillets or webs 57 are broken and ~he locking ri~g 28 is moved upwardly relative to the 25 cylindrieal ba~e 26. Later, when ~he locXing ring 28 i~ moved downwardly on the ba~e 26, an annular groove 74 within the ~: locking ring 28 ~nap-fittingly mates with an annular rib 75 on th~ ba~e 26. Th~ upper po~ition of the loc~ing ring 28 is the pr~ application-to-a-bottle positio~ and the loc~ing ri~g 28 is : 39 held in this po~ition by fri~tional engagement of the inner :~ wall of the locking ring 28 with the rib ~egments 76 provided on th~ outer cylindrical wall of the cylindrical base 26. The uppe~, partially annular rib segment~ 76 on the outer cylindrical wall of the cylindrical base 26 loca~e a~d to some 35 exte~t limit upward movement of the locki~g ring 28.
A~ shown in FIG. 3, molded within the cyli~drical base 26 to a top wall 314 of the cylindrical base 26 i~ a ~mall diameter ~eal ring 316. The seal ring 316 is de3igned to seal -substitute sheet-~PEA~JS 1 9 AUG lg93 ; 6 2130'~8~
against the inner diameter of the bottle neck 30. The seal ring 316 has a bevelled end 318 at its lower side to facilitate insertion of the bottle neck 30 into the base 26 and around the seal ring 316.
Within the inner area o~ seal ring 316 i~ an opening 320, having a shape according to the shape of the intak~ stem 50 which i~ generally oval in cross-section. The intake stem 50 is pre~s-fitted into the opening 320 until ridge~ 322 on the intake stem 50 snap into mating mounting grooves on the inner 10 surface of the wall of the ope~ing 320. In this way, an air tight seal is provided. The diptube 52 i8 releasably fixed in the center of the intake stem 50. The length of the diptube 52 depends on the size o~ the bottle 12. However, it i~
recommended that the diptube 52 should extend to the bottom of 15 the bottle 12 but shouldn't touch it.
The cylindrical opening 48 is located inside the body 14 of the trigger sprayer 1~. The piston cylindrical end 46 ~its tightly into the cyli~drical opening 48 to create a pumping chamber 324 having a variable volume between a fixed back wall 20 326 of the cylindrical opening 48 and a rearwardly ~acing w~ll 328 of the piYton cylindrical end 46. The fix~d wall 326 of : th~ pumping chamber 324 has an inlet flap valv~ 330 ~ituated in ~:~ the lower part thereof and an opening 332 in th~ upper part thereof. An orifice 334 through a wall of the intake stem 50 ~5 is located to mate or register with the inlet flap valYe 330 and to e~tablish an inlet passageway. The inlet pa~3ageway i~
~: provided by the ho~low diptube 52, the intak~ ~tem 50 and the ;~; orifice 334.
The opening 332 is located to mate or regi~ter with an ~: 30 outlet flap valve 33~ on the top sid~ of intake ~tem 50. Inlet : flap valve 330 and outlet flap valve 336 control the ~luid flow into a~d-out of pumping chamber 324.
The trigger 32 i9 pivotally mounted on the body 14 of the trigger ~prayer 10 by i~serting the two laterally extending 35 pin~ 34 on the upper par~ of the trigger 32 into the two corresponding hole~ 38 in the body 14.
~: Referring now to FIG. 4, which i9 a fron~ elevational view ~:~ of the nose bu~hing 16, it will be apparent that the nose -substitute sheet-: ~
7 ~130~8~ lPEAfJS I9 AUG1993 j~. .
bushing 16 includes a cylindrical extension 702 having an inner cylindrical cavity 704. The cylindrical extension has a first slot 706 through the cylindrical wall thereof which is a so-called tangential 810t for directing liquid tangentially into 5 the cylindrical cavity 704 and has a second, so-called radial, slot 708 for directing liquid radially into the cylindrical cavity 704.
The cylindrical extension 702 is small-in-diameter and is located coaxially with an outer aylinder 710 having a larger 10 diameter. In the embodiment ~hown in FIG. 4, the smaller : cylindrical extension 702 extends outwardly from a web 712 of : material which fixes the cylindrical extension 702 in the po~ition shown ant defines between, an inner wall 714 of the outer cylinder 710, two waterways 720 and 722 which communlcate - : 15 liquid to be sprayed in a SP~AY or ST~EAM to the tangential slot 706 or to the radial slot 708.
Also, it will be apparent from FIG. 4 that the top of the body 14 between the slot~ 70 has a tab extension 726 which extends partially into a locating slot 728 in the back 20 underside of a top side wall 730 of the nozzle cap 60 as shown in:FIG. 5.
,~
With reference to FIG. 5, ~t will be seen that the nozzle cap 60 ha~ a generally square configuration with the top side wa}l 730 having S~OP indicating indicia. A left side wall 734 : 25 has 8P~AY indicating indicia thereon and a right side wall 738 : which ha~ SIREAN~indicating indicia.
Also, the~nozz:le cap 60 has a bottom wall 742, as shown in FIG. 5.
: Within the~envelope of the forward portions of the walls 30 730, 734, 738~ and 742 and extending rearwardly from a front wall 744 of~th-~nozzle cap 60 is a fir~t outer cylinder 746 which- is adapted~to receive therein the outer:cylinder 710 of the noae bushing~l6. Then, also extending rearwardly from the : : front wall 744 within the outer cylinder 746 is a smaller-in-35 diameter cylinder 748 having a slot 750 extending radially therethrough:which is adapted, upon selective rotation of the nozzle cap 60, to mate with either the tangAential ~lot 706 or the radial 810t 708 in the cylindrical extension 7G2. The -substitute sheet-~:' :~:
~2~ 30 8~ IPEA~J~ 19 AuGl993 smaller-in-diameter cylinder 748 is adapted to be received over the cylindrical extension 702.
In a manner which is ~onventional in the art, when the nozzle cap 60 is rotated counterclockwise 90~ from the ~TOP
5 position to the SPRAY position, liquid in the waterway 720 will pass through the slot 750 and throuyh the mating 910t 706 into the cylindrical cavity 704 and in a swirl forwardly to an outlet orifice 752 in the front wall 744 of the nozzle cap 60.
In a similax manner, when the nozzle cap 60 i~ rotated 10 clockwi~e 90 from the STOP position to the S~RE~M po~ition, the slot 750 in the wall of the cylinder 748 will mate or register with the radial slot 708 whereby liquid can flow from the waterway 722 through the siot 750 and through the ~lot 708 radially into the cylindrical ~avity 704 and then axially 15 forwardly and out of the orifice 752.
In this way, in a manner similar to previously proposed nozzle as~emblies, liquid can be directed through the waterways 720 and 722 to selectively aligned, axially extendîng or : radially extending, slots for communicating liquid in a ~wirl 20 or in an axial path to the orifice 752 for effecting a desired discharge of liquid in either a coni~al spray or mist-like di~charge or in a substantially axial STREAM type dischar~e.
A}so, it will be understood that different formations can be utilized ~or effe¢ting the mating of one or more tangential 25 slots through a radial slot to a waterway or one or more radial slots to a radial or longitudinal 310~ and thence to a waterway, as di~clo~ed in the Quinn et al U.S~ Patent No.
4,234,128 or the Dobb~ et al U.S. Patent No. 4,706,888, the disclosure3 of whiah are incorporated herein by reference.
~; 30 Al~o in FIG. 5, there i~ illu~ra~ed a fir~t formation 754 in the lowex area on the in~ide of the ~ide wall 734. Thi~
formation 754 defines a lug, bo~s or detent 7~4 that ¢xtend3 angulariy upwàrdly and inwardly from the wall 734 inside the nozzle cap 60 to an edge or catch 755. In like manner, a lug, 35 bos~ or detent 756 in the lower area of the wall 738 ex~end3 inwardly from the wall 738 inside the nozzle cap 60 to an edge :~ or catch 757.
As will be described in greater detail hereinafter, the -substitute sheet :
IPEA~IS I 9 AU G l993 9~130~80 lugs 754 and 756 normally are positioned in the nozzle assembly 58 beneath the legs or prongs 72.
The blocking engagement of the leg~ or prongs 72 relative to the lug~ or projections 754 and 756 normally prevents S rotation of the nozzle cap 60 of the nozzle as~embly 58 u~til the pull-away piece 20 i9 pulled away to remove the fork armq 69 from the locking position of each fork arm 69 between the cylindrical portion 64 and a leg or prong 72, and unles3 and until a user squeezes the side walls of the body 14 in the ~ide 10 wall areas 780 and 782 at the same time the u~er rotates the nozzle cap 60.
The blocking position of the pronss 72 i~ ~hown in FIG~ 8.
Then, a~ shown in FIG. 9, when the wall area~ 780 ~nd 782 o the body 14 are squeezed or pushed inwardly to move the legs or 15 prongs 7~ toward the cylindrica~~portion 64 and out of blocking or catching engageme~t with the lug~ 754 and 756, the nozzle cap 60 can be rotated clockwise or counterclockwise, a3 ~hown : in phantom in FIG. 9.
As shown in FIG. 9, after the wall area~ 780 and 782 are 20 squeezed to move th~ legs 72 out of bloc~ing engagement with respect to the lugs 754 and 756, partiGularly the lug 754, the nozzle cap 60 can be rotated counterclockwise 90 to the SPRAY
position.
In thi~ position, the waterways 720 and 722 commu~icate 25 through the slot 750 and the slot 796 to the cylindrical cavity 704 for effecting a ~wirl of liquid to the out~et orifice 752 ~: ~ in the front wall 744 of the n~zzle cap 60 thereby to effect :~ the SPR~Y, mist or fog-like discharge of liquid from the nozzle `cap 60.
30When the nozzle cap 60 i~ rotated clockwise 90 after the prong3 or legs 72 have been squeezed inwardly, the lug or ; projection 756 then can move p~st the leg 72. :
Each lug 754, 756 has an upper surfa`ce 76~ extending to a surface 762 that is close to parallel to the plane of the ~ide ~: 35 wall 734 or 738, the intersection of these 3urface~ 760, 762 being the edge or catch 755 or 757.
It will be noted that the~ extension tab 726 having inclined side edges 784 and 786 is adapted to engage on one -substitute sheet-IPEA~JS I 9 AUG ~993 2130 ~80 side or the other the lug 754 or the lug 756 to prevent further rotation of the nozzle cap 60, counterclockwise or clockwise thereby to ensure that the nozzle cap 60 can only be moved from the STOP position to the SPRAY position or from the S~OP
5 position to the STREAM po~ition.
With reference to FIGS. 2 and 10, it will be understood that the mounting block 67 of the pull-away piece 20 has a generally rectangular planar body 801 and i~ pressed downwardly after placement over the top portion 22 to snap-fittingly lock 10 the mounting block 67 in the opening 68 in the top portion 22 of the body 14. At the same time, the fork arms 69, each having a curved inner surface 802, are received through the ~: spaced apart slots or notches 70 in the top portion 22 at the : front end thereof ant through the slots or notches 71 in the 15 rear edge of the top wall 730 of the nozzle cap 60, with the curved surfaces 802 being received around the cylindrical portion 64 of the body l4 and having lower ends 804 received between the cylindrical portion 64 and the spaced apart leg~ or prong3 72.
With the lower ends 804 of the fork arms 69 positioned in thi~ manner, inward movement of the legs or prongs 72 when the wall aress 780 and 782 of the body 14 are squeezed is pr~vented.
A~ a result, if one tried to rotate the nozzle c~p 60, 25 such rotation i8 prevented, on the one hand by the fork arms 69 extending through the mating ~lot~ or notches 70 and 71 in the top wall portion:22~of tbe body 14 and the top wall 730 of the nozzle cap 60;and, on~th- other hand, by the blocking po3ition of the fork arms 6:9 which~prevent inward movement of the prongs 30 72 to enable the~lugs ?54 and 756 to be moved pa~t the prongs 72 upon either:olookwise or counterclockwise attempted rotation of the nozzle cap 60.
As best shown in FIG.~ 11, the pull-away piece 20 has at the front end thereof a rectangular recess 806 which is adapted 35 to be re~eived over the extension tab 726. The curved surfaces 802 extend downward:ly and laterally on the inner side of the fork arms 69 from the edges of the rectangular recess 806.
A top rear portion or pull tab 808 of the pull-away piece substitute sheet-:~
~ 7 ~J ~ U C lJ ~ ~
112l 3o jgo . IPEAIUS 19 AUG1993 20 has PU~L indicia 810 thereon.
Further, to facilitate pulling of the pull-away piece 20, the rear underside of the pull tab 808 is beveled upwardly at 812 a~ shown in FIG. 12.
The mounting block 67 is positioned below the planar body 801 of the pull away piece 20 beneath a recess 815 in the planar body 801 and is connected to fro~t and back edges 816, 817 of thi4 receqs 815 by three webs or fillet~ 818, as best shown in FIG. 13.
The mounting block 67 has a curved lowex ~urface 820 with a centrzl longitudinally extending slot 822 separating the mounting block 67 into left and right prong portions 824 and 826. Each prong portion 824 and 826 ha~ an inclined surface 828, 830 which inclines upwardly and laterally outwardly from -15 the curved surface 820 to a shoulder 832, 834, as best ~hown in FIG. 13.
It will be under~tood that when the mounting block 67 i~
pushed downwardly through the opening 68, the inclined surfaces 82U and 830 engage the side~ o~ the opening 68 and the slot 822 20 allows the prong portions 824 and 826 to be deflected inwardly until ~he shoulder~:832:and 834 are moved pa~t lower side edges 835 and 836 of the opening 68 and snap into a locki~g po~ition :~ beneath the top wall portion 22 of the body 14 adjac~nt the side edges 835, 836 of the opening 68. The cur~ed surface 820 ~:25 will then re~t upon the upper surface of the cylindrical ~: portion 64 perhaps with a slight interference fit between the cylindrical portion 64 and the underside of the top wall ~urface 22.
:A3 shown in FIG. 12, the planar body 801 ha~ ~ tran~verse 30 g~oov~ 840 in a lower ~urface 842 thereof to ~acilitate bending of th~ pull tab 808.
The pull-away piece 20 provides tamper evident structure for the nozzle assembly 58. In ~his respect, if the pull-away piece 20 is broken or mi9Ying~ that is evidence that the nozzle ~: 35 assembly of the ~rigger sprayer has been tampered with.
In use, a user will grip the pull t b 808 at the rear end of the break away piece 20 and pull upwardly, with the bevel ~: 812 facilitating gripping of the pull tab 808 and the -substitute sheet-)s 9~ /0~07 ~
- ` 2~ fl ''8n ; iPEA~JS 19 ~UG1993 transverse groove 840 facilitating bending of the pull tab 808 upwardly. As the pull tab 808 is pulled upwardly, first the webs or fillets 818 at the back edge 817 of the rece~s 815 are broken followed by breaking of the webs or fillet~ 818 at the 5 front edge 816 of the recess 815. After the web~ or fillets 818 are broken, the pull-away piece 20 can be ea-qily removed from the sprayer body to remove the fork arms 69 from the mating slot~ or notches 70 and 71 and to remove the lower ends 804 of the fork arms 69 from a blocking position between the 10 cylindrical portion 64 and the legs or prongs 72 to enable a user to use the tFigger sprayer 10.
:~ :
: - :
:~
-substitute sheet-
Claims (9)
1. A trigger operated fluid dispensing device for mounting to a container, said dispensing device comprising:
a body having a front end including opposed side walls at the front end, a nose bushing extending from said front end between said side walls and at least one, elongate, nozzle cap blocking member which extends from said body front end and which is adapted to engage and prevent rotation of a nozzle cap upon rotation of the cap without manipulation of said body side walls;
a nozzle assembly at the front end of said body including said nose bushing, a nozzle cap received on said nose bushing and cooperating means on or in said nozzle cap and on or in said nose bushing for selectively establishing an off position of said nozzle cap, a spray position of said nozzle cap or a stream position of said nozzle cap upon rotation of said nozzle cap;
said nozzle cap being mounted for rotation on said nose bushing between said three positions and said nozzle cap having engaging means therein positioned adjacent said blocking member for engaging said blocking member when someone attempts to rotate said nozzle cap without manipulating said body side walls; and, said side walls of said body being deflectable inwardly of said body so that when said side walls are squeezed inwardly, they engage and move inwardly said blocking member to permit said engaging means in said nozzle cap to move past said blocking member when said nozzle cap is rotated at the same time said body side walls are squeezed.
a body having a front end including opposed side walls at the front end, a nose bushing extending from said front end between said side walls and at least one, elongate, nozzle cap blocking member which extends from said body front end and which is adapted to engage and prevent rotation of a nozzle cap upon rotation of the cap without manipulation of said body side walls;
a nozzle assembly at the front end of said body including said nose bushing, a nozzle cap received on said nose bushing and cooperating means on or in said nozzle cap and on or in said nose bushing for selectively establishing an off position of said nozzle cap, a spray position of said nozzle cap or a stream position of said nozzle cap upon rotation of said nozzle cap;
said nozzle cap being mounted for rotation on said nose bushing between said three positions and said nozzle cap having engaging means therein positioned adjacent said blocking member for engaging said blocking member when someone attempts to rotate said nozzle cap without manipulating said body side walls; and, said side walls of said body being deflectable inwardly of said body so that when said side walls are squeezed inwardly, they engage and move inwardly said blocking member to permit said engaging means in said nozzle cap to move past said blocking member when said nozzle cap is rotated at the same time said body side walls are squeezed.
2. The dispensing device of claim 1 wherein said at least one, elongate, blocking member includes at least one leg or prong extending outwardly from said front end of said body adjacent one of said side walls.
3. The dispensing device of claim 1 wherein said nozzle cap is generally cup shaped including at least three cap side walls and a front wall, said front wall having an outlet orifice therein and at least one of said cap side walls having on an inner surface thereof a lug which is positioned to engage said blocking member and which defines said engaging means.
4. The dispensing device of claim 1 wherein said body has a top side wall and a tab extending from said top wall at the front end of said body and adapted to be received in said nozzle cap beneath the top wall thereof and having side edges at least one of which is adapted to engage said engaging means inside said nozzle cap to limit rotation of said nozzle cap, with such engagement defining an operating position of said nozzle assembly.
5. The dispensing device of claim 1 wherein said at least one, elongate, blocking member includes first and second prongs diametrically disposed on opposite sides of said nose bushing and extending outwardly from said front end of said body with each prong being disposed adjacent one of said side walls.
6. The dispensing device of claim 5 wherein each of said prongs is a generally flat flexible planar elongate leg which extends in a plane generally parallel to the plane of an adjacent side wall of said body and being deflectable inwardly toward said nose bushing when said body side walls are squeezed thereby to move said prongs out of a blocking position with respect to said engaging means in said cap.
7. The dispensing device of claim 5 wherein said nozzle cap is generally cup-shaped including at least three cap side walls and a front wall, said front wall having an outlet orifice therein, said cap side walls comprising a cap top side wall having STOP indicia thereon on the outer surface thereof, a cap left side wall having SPRAY indicating indicia thereon and a cap right side wall having STREAM indicating indicia thereon, and said cap left and right side walls each having on an inner surface thereof a lug positioned to engage the side of one of said prongs, said lugs defining said engaging means.
8. The dispensing device of claim 7 wherein each of said lugs is defined by a projection which extends from the inner surface of one of said nozzle cap side walls and has a sharp edge or catch edge defined between a first surface extending inwardly of said cap from said inner surface of said nozzle cap side wall and another surface generally parallel to said nozzle cap side wall.
9. The dispensing device of claim 1 wherein said body has a top wall and said device includes tamper evident means releasably fixed to said top wall and including means for engaging said nozzle cap and grippable means for enabling one to grip said tamper evident means and pull same away from said top wall.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/840,765 | 1992-02-24 | ||
| US07/840,759 | 1992-02-24 | ||
| US07/840,759 US5297701A (en) | 1992-02-24 | 1992-02-24 | All plastic trigger sprayer |
| US07/840,765 US5228600A (en) | 1992-02-24 | 1992-02-24 | Child resistant nozzle for trigger sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2130580A1 true CA2130580A1 (en) | 1993-08-25 |
Family
ID=27126205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002130580A Abandoned CA2130580A1 (en) | 1992-02-24 | 1993-02-23 | Child resistant nozzle for trigger sprayer |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPH07504122A (en) |
| AU (1) | AU674309B2 (en) |
| CA (1) | CA2130580A1 (en) |
| DE (1) | DE4390810T1 (en) |
| GB (1) | GB2278556B (en) |
| IL (1) | IL104783A0 (en) |
| LU (1) | LU88525A1 (en) |
| MX (1) | MX9301008A (en) |
| NL (1) | NL9320026A (en) |
| NZ (1) | NZ251121A (en) |
| WO (1) | WO1993016953A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9382059B2 (en) | 2011-01-21 | 2016-07-05 | Lindal Dispenser Gmbh | Spray head |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5526985A (en) * | 1994-09-21 | 1996-06-18 | Afa Products, Inc. | 90° rotation nozzle assembly with swirl chamber configuration |
| JP5641784B2 (en) * | 2010-05-28 | 2014-12-17 | 花王株式会社 | container |
| JP6242714B2 (en) * | 2013-08-30 | 2017-12-06 | 株式会社吉野工業所 | Trigger type liquid ejector |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2246679C3 (en) * | 1972-09-22 | 1980-11-13 | Dynamit Nobel Ag, 5210 Troisdorf | Device for extruding an extruded profile consisting of thermoplastics with a core profile and a cover layer |
| US4346821A (en) * | 1978-03-16 | 1982-08-31 | Afa Consolidated Corporation | Child-resistant closures for container mounted spray dispensers |
| US4204614A (en) * | 1978-09-28 | 1980-05-27 | Diamond International Corporation | Fluid dispenser having a spring biased locking mechanism for a safety nozzle cap |
| US4257561A (en) * | 1979-06-05 | 1981-03-24 | Ethyl Products Company | Child-resistant dispensing nozzle assembly |
| US4516695A (en) * | 1981-02-09 | 1985-05-14 | The Afa Corporation | Child-resistant liquid dispenser sprayer or like apparatus |
| US4773567A (en) * | 1986-04-21 | 1988-09-27 | Stoody William R | Child resistant latching actuator for aerosol/pump valve |
| US5040701A (en) * | 1989-06-02 | 1991-08-20 | Calmar Inc. | Manually actuated dispensing pump sprayer having a removable nozzle locking element |
| US5040702A (en) * | 1989-06-02 | 1991-08-20 | Calmar Inc. | Manually actuated dispensing pump sprayer having a removable nozzle locking element |
| US4971227A (en) * | 1989-06-02 | 1990-11-20 | Calmar, Inc. | Manually actuated dispensing pump sprayer having a removable nozzle locking element |
| US5050779A (en) * | 1990-07-13 | 1991-09-24 | Calmar Inc. | Dispenser having child-resistant nozzle assembly |
-
1993
- 1993-02-18 IL IL104783A patent/IL104783A0/en unknown
- 1993-02-23 NZ NZ251121A patent/NZ251121A/en unknown
- 1993-02-23 AU AU37955/93A patent/AU674309B2/en not_active Ceased
- 1993-02-23 CA CA002130580A patent/CA2130580A1/en not_active Abandoned
- 1993-02-23 GB GB9416753A patent/GB2278556B/en not_active Expired - Fee Related
- 1993-02-23 JP JP5515138A patent/JPH07504122A/en active Pending
- 1993-02-23 WO PCT/US1993/002070 patent/WO1993016953A1/en active Application Filing
- 1993-02-23 NL NL9320026A patent/NL9320026A/en active Search and Examination
- 1993-02-23 DE DE4390810T patent/DE4390810T1/en not_active Ceased
- 1993-02-24 MX MX9301008A patent/MX9301008A/en unknown
-
1994
- 1994-08-24 LU LU88525A patent/LU88525A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9382059B2 (en) | 2011-01-21 | 2016-07-05 | Lindal Dispenser Gmbh | Spray head |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1993016953A1 (en) | 1993-09-02 |
| MX9301008A (en) | 1994-06-30 |
| GB2278556A (en) | 1994-12-07 |
| GB9416753D0 (en) | 1994-10-12 |
| LU88525A1 (en) | 1994-12-01 |
| AU674309B2 (en) | 1996-12-19 |
| GB2278556B (en) | 1995-06-28 |
| NZ251121A (en) | 1996-05-28 |
| JPH07504122A (en) | 1995-05-11 |
| AU3795593A (en) | 1993-09-13 |
| IL104783A0 (en) | 1993-06-10 |
| DE4390810T1 (en) | 1995-02-23 |
| NL9320026A (en) | 1995-02-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20010223 |