AU606640B2 - Nozzle cap - Google Patents
Nozzle cap Download PDFInfo
- Publication number
- AU606640B2 AU606640B2 AU83099/87A AU8309987A AU606640B2 AU 606640 B2 AU606640 B2 AU 606640B2 AU 83099/87 A AU83099/87 A AU 83099/87A AU 8309987 A AU8309987 A AU 8309987A AU 606640 B2 AU606640 B2 AU 606640B2
- Authority
- AU
- Australia
- Prior art keywords
- uneven portion
- nozzle
- cylinder
- inner peripheral
- foaming
- 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.)
- Ceased
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
- 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
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
- B05B7/005—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam wherein ambient air is aspirated by a liquid flow
- B05B7/0056—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam wherein ambient air is aspirated by a liquid flow with disturbing means promoting mixing, e.g. balls, crowns
-
- 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
- B05B11/1052—Actuation means
- B05B11/1056—Actuation means comprising rotatable or articulated levers
- B05B11/1057—Triggers, i.e. actuation means consisting of a single lever having one end rotating or pivoting around an axis or a hinge fixedly attached to the container, and another end directly actuated by the user
Landscapes
- Nozzles (AREA)
- Closures For Containers (AREA)
Description
aS 606640 COMMONIWEALTH OF AUSTRALIA PATENTS A(CT 1952 COMPLETE SPECIFICATION (Original) FOR OFFICE USE Class Int. Class Application Niumber: Lodged.
Coinplete Specification Lodged: Accepted: Published: Priorfty: Related Art: I hsdocument contains the amendments made tind,?r Section 49 and is correct for printing
C~
t C f t(f Name of Applicant: Address of Applicant: Actual Inventor(s): Address for Service: Yashino Kogyosho Co., Ltd.
No. 2-6, Ojima 3-chome, Koto-Ku, Tokyo, Japan 17,nkaharu Tasaki and Tadao Saito DAVIES COLLISON, Patent Attorriys, I Little Collins Street, Melbourne, 3000.
I
Complete Specification for the invention entitled: "1NOZZLE
'CAP"
The following statement is at full description of this invention, including the best method of performing it known to us: .1 001 10,gnsp,005,ky83M9,spe,1 r la- NOZZLE CAP The invention relates to a nozzle cap rotatably mounted to the end of an injection cylinder for a trigger type liquid dispenser.
A prior art trigger type liquid dispenser is shown by an example in Fig. 11. To actuate the dispenser a trigger is depressed to 'drive a piston 2 and thereby suck liquid from a contAiner attached to the dispenser. When the trigger 1 is depressed piston 2 is pressed into a pumping chamber to pressurize the interior of the pumping i chamber. An exhaust valve is opened by the high pressure I er liquid to enable injection of the liquid through an Sinjection cylinder 4 and then through the nozzle port of S 15 a cap The nozzle cap 5 has, as known per se, a liquid guide fixedly engaged with the end of the injection cylinder 4, and a nozzle body rotatably engaged with the Send of the liquid guide. The nozzle body has a nozzle port at the center thereof. The nozzle body can be used i to select the three operating states of the dispenser.
SEThe three operating states are "foam", "direct" and "closure". Thuse terms refer respectively to-injecting A the liquid content in a foaming state, injecting the 25 liquid contet in a water column state or closing the dispenser to prevent injection of the liquid in the container. The three operating states may be selected by rotation of the nozzle body.
Heretofore, the foaming means has a foaming cylinder arranged on the front face of the nozzle port of the nozzle body. The foaming cylinder is cylindrical and it has been found that prior art devices cannot foam the liquid efficiently.
It is, therefore, a principle object of the present invention to provide a nozzle cap having a foaming cylinder capable of efficiently foaming liquid.
901 105,gJnspc.00$Sky8399.3Pe.1
'N
-2a 0 0 0 0 000 0 0 00 0400 00 be o According to the present invention therie is provided a nozzle cap comprising a nozzle body having a divergent nozzle port and a foaming cylinder attached to the nozzle body to be axially aligned and forward of said divergent nozzle port, said foaming cylinder further comprising an ininer peripheral uneven portion formed on an inner peripheral wall of said foaming cylinder haiving a substantially uniform cross-sectional opening and an ~inner peripheral even pu.rtion defined by said inner peripheral wall of said foaming cylinder having a substantially uniform cross-sectional opening, said inner peripheral uneven portion of said foaming cylinder being adjacent to said divergent nozzle port so that liquid injected from the divergent nozzle port is dispersed 15 outwardly and directly impinges on the adj acent uneven portion.
Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings in which:- 20 Figs. 1(a) and 1(b) are longitudinal sectional views of an embodiment of a nozzle cap according to the present invention; Figs. 2 to 7 are longitudinal sectional views of portions of dixferent embodiments of the nozzle cap 25 having various peripheral uneven portions; Fig. 8 is a seutlonal view of a portion of a nozzle in accordance with an embodiment of the invention in which the inner peripheral unae!Rn portion is formed in an axial direction and the inner diameter of the portion not formed with the uneven portion of the foaming cylinder is larger than the maximum inner diameter of the uneven portion; Fig. 9 is a sectional view of a portion of a nozzle of still another embodiment in which the inner diameter of the portion not formed with the uneven portion of the foaming cylinder is smaller than the minimum inner 901105,dmnpc,005,ky8V,9,sI~e,; -3diameter of the uneven portion; Fig. 10 is a longitudinal sectional view of another d embodiment in which- a foaming cylinder 7 and a nozzle body 5a are integrally formed; and Fig. 11 is a schematic view of a conventional trigger type liquid dispenser.
A first embodiment of a nozzle cap for a tr'igger' type liquid dispenser according to the present invention -will be described by referring to Figs. 1(a) and A nozzle cap 5 comprises a nozzle body 5a and a liquid guide 5b. The liquid guide 5b is engaged with the end of a liquid injection cylinder 4. The nozzle body 5a has a substantially triangular cross-sectional shape. A nozzle port 6 is perforated at -the center on the front face of the nozzle body Sa. The nozzle body 5a is rotatably engaged through a short cylindrical portion 5c with a plug 9 at the end of the liquid guide Figs. 1(a) and 1(b) show the "foaming" position of the nozzle cap. Shallow grooves 10 are formed at a plurality of peripheral positions on the peripheral surface of the end of the plug 9 of the liquid guide in a longitudinal direction from the front end face over a predetermined zo~ne, Liquid passages 11 are formed at a plurality of peripheral positions on the inner periphery j 25 of an end cylindrical portion Sc in a longitudinal direction from the rear end face over a predetermined t zone. A spin groovF, 12 ira d.Isposed at the rear side face of the nozzle port 6. At the "foaming"' position, the shallow grooves 10, communicate between tho liquid passages 11, and the spin groove 12. Upon actuation of the trigger of the liquid dispenser high pressure liquid in an atomized state passes through the spin groove 12 and the nozzle port 6 and then the atomized liquid collides with the inner peripheral wall of the foaming cylinder 7 which cause the atomized liquid to cLoam.
When the nozzle body-Sa is rotated to the "direct" 9011 05,g~nspc.005,ky83O9.spIc,3 w -4- 00 9 vo a 00 00 a0 6 t 0 100 position, a deep groove in a different direction, not shown in the Fig. 1, of the plug 9 communicates the liquid passages 11 di,-ectly with the nozzle port 6. When the trigger of the licui-d dispenser is actuated the high pressure liquid is dispensed directly out of the nozzle port 6 in a water column state without passing through the spin groove 12. When the i 1le body 5a is rotated~ to the "closure" position, the T- *tion not formed W4ith the shallow grooves 10 and the duep groove of the, plug 9 is disposed to interrunt between the liquid passages 11, the nozzle port 6 and the spin groove 12. This prevents liquid from being puirped out of the dispenser when the trigger is actuated.
TM~t foaming cylinder 7 is integrally formed with a 15 large -di ameter mounting cylinder 13. The mounting cylinder 13 is mounted within a peripheral wall housing 14 and the foaming cylinder 7 is arranged so that an air gap 13a is formed between the end of the foaming cylinder distal of the exit of the injection port 18 and the front f ace of the nozzle port 6 of the nozzle body 5a. The foaming cylinder 7 and the mounting cylinder 13 are joined by a front end plate. Air intake openings 15 are positioned peripherally of the end plate and communicate with the air gap 13a. The foaming cylinder 7 has an engaging projecting ciLrcumferential strip 16 formed on the outer peripheral surface of the mounting cylinder 13.
Circumferential strip 16 engages with an engaging inner circumferential gro/ove 17 formed on the inner peripheral surf ace of the peripheral wall 14 and in this manner the mounting cylinder 13 is mounted within the wall housing 14.
A portion of the inner wall of the foaming cylinder 7 is formed with a raised uneven portion 8 in the for~m of a thread. The raised uneven portion 8 is such that fluid injected into the foaming cylinder is caused to 8trike the uneven portion 8 causing the fluid to foam.
go0I 105.g&sV4.05ky830N9.spc,4 The inner peripheral uneven portion 8 of the foaming cylinder 7 may be formed in any number of shapes and configurations and is not limited to the embodiment shown in Fig. 1.
Figs. 2 to 7 show different examples of the raised uneven portions 8 of the foaming cylinder 7. In the example of Fig. 2, the grooves are spirally recessed on the inner peripheral wall of the foaming cylinder 7 to form an uneven state on the inner peripheral wall. In the example of Fig. 3, a plurality of ring-like projecting strips 8a are peripherally projected on the 0 inner peripheral wall of the foaming cylinder 7 to form obo0 an uneven state on -the inner peripheral wall. In the baeo example of Fig. 4, a plurality of ring-like peripheral 15 grooves 8b are peripherally recessed on the inner 0< 00 0 peripheral wall of the foaming cylinder 7 to form an o 0 uneven state on the inner peripheral wall. In the example of Fig. 5, a plurality of projections 8c are projected on the inner peripheral wall of the foaming cylinder 7 to form an uneven state on the inner 0000 Q"o*Qo peripheral wall. In the example of Fig. 6, a plurality ,oi° of pores 8d are recessed on the inner peripheral wall of the foaming cylinder 7 to form an uneven portion on the 0o inner peripheral wall. In the example of Fig. 7 small ~o 25 projections 8e of triangular projecting shape are formei at a predetermined circumferential interval on the inner goaa peripheral wall of the foaming cylinder 7 to form an uneven state on the inner peripheral wall.
As the angle of diffusion of the liquid (atomized state) injected from the nozzle port 6 depends upon the viscosity of the liquid, the shape and positioning of the uneven portion 8 should be designed upon the basis of the viscosity of the liquid which is to be injected.
When the viscosity of the liquid to be injected is low, the liquid is dispersed in a wide angle from the nozzle port 6. Thus, the injected liquid (atomized 901 105,gnspc,005,ky8399.spc -6state) is diffused axially near the nozzle port 6 as compared with the case of high viscosity liquid where the liquid is diffused axially away from the nozzle port 6.
For this reason, in the case of low viscosity liquid, it is desirable that the uneven portion 8 is formed closer to the nozzle port 6 (as shown in Figure 8) and shorter in length tkian that required in the case o~f a high viscosity liquid. When the uneven portion 8 is too long -the axial direction in the foaming cylinder 7, the reLsistance of the raised uneven portion 8 against the liquid injected from i:he nozzle port 6 is increased so that the injecti.ng pressure of the Lquid injected from an injection port 18 decreases. For example, as shown in Fig. 8, the uneven portion 8 is formed on the portion near the side of the nozzle port 6 from the center of the inyier peripheral wall of the foaming cylinder 7. When the viscosity of the liquid is low, foaming is performed efficiently even if the uneven portion 8 is formed shorter in the axial direction of the foaming cylinder 7.
On the other hand, in case of high viscosity liquid, the liquid is diffused and injected in a relatively narrow angle frcom the nozzle port 6 as comr'-:ed with the case of low viscosity liquid. Thus, it is preferable that the raised uneven portion 8 is formed longer in the axial direction away from the nozzle port 6.
-Further, in order to reduce the resistance of the foaming cylinder 7 against the injected liquid in case or low viscosity liquid, as shown in Fig. 8, the inner diameter of the portion 7a formed without the uneven portion 8 of the foaming cylinder 7 may be made greater than the maximum diameter of the uneven portion 8. Such a configuration eliminates the rk,,ed to increase the resistance of the inn~er wall portion 7a of the foaming cylinder 7 not formed with the raised uneven portion 8 s0 that the injecvi~ng pressure of the liquid from the injection por-t4 18 increasesk Also, the atomizing pattern 901 IOS,gJnsPe..00S,ky83O99,spv,6 .7can be varied.
In case of high viscosity liquid, as shown in Fig.
9, the inner diameter of the portion 7a not formed with the uneven portion 8 of the foaming cylinder 7 may be formed with a diameter smaller than the minimum inner diameter of the uneven portion 8. However, when the inner diameter of the portion 7a is excessivel, redvced, the resistance increases excessively to cause thit injecting pressure of the liquid to reduce, thereby permitting the liquid to leak and drop from the injection port.
The uneven portion 8 of the inner wall of the foaming cylinder 7 is formed mainly on the rear half portion near the nozzle port 6 on the inner wall of the foaming cylinder 7 and it is preferable not to form the uneven portion 8 on the entire inner peripheral wall of the foaming cylinder 7. If the uneven portion 8 is formed on the entire inner peripheral wall of the foaming cylinder 7, the resistance against the injected liquid by the uneven portion 8 is excessively incrQaased and thereby reduces the injection pressure of the V quid. The required axial length of the uneven portiLon 8 on the ipn~er peripheral su~rf ace depends upon the viscosity of the Uquid.
S 25 In the embodiments described above, the foaming cyl,nder 7 is formed independently from the nozzle body However, the foaming cylinder 7 may be formed 4 integrally with the nozzle body 5a. Fig. 10 shows an A example of this situation. A foaming cylinder 7 is integrally from the front of the wall of the outer periphery of the nozzle port. When the foaming Qylinder 7 is integrally formed with the nozzle body On air intake port 15 f ormed on the front face of the nozzle cap cannot be removed from a mold after molding.
Therefore, in the embodiment of Figs 10, the air intake port 15 is formed on the side of the nozzle cap.
901105,gjnsp,005.,k8.3099.spe,7 w~ j I i -8- The respective portions are molded of synthetic resin material.
According to the present invention as described above, the uneven portion 8 is formed on the inner wall of the foaming cylinder 7 so that the injecting liquid from the nozzle port 6 is repeatedly reflected by the raised uneven portion 8 to cause the liquid to foam The present invention therefore provides a nozzle cap having a simple but yet efficient foaming mechanism.
aoi~ 9 D t PB e
ECCE
8 C t! CC I cc;,-
C
C 1 c rgc, w
L
41 KC r LU t 90 105,gJnspc,00sky839.spe,8 1 ;i i-c- I c~l 1
Claims (11)
1. A nozzle cap comprising a nozzle body having a divergent nozzle port and a foaming cylinder attached to 'the nozzle body -to be axially aligned and forwaxrd of said divergent nozzle port, said foaming cylinder further comprising an inner peripheral uneven portion formed on an, inner peripheral wall of said foaiming cylinder having. a substantially uniform cross-sectional opening and an inner peripheral even portion defined by said inner peripheral wall of said foaming cyLinder having a substantially uniform cross-sectional opening, said inner peripheral uneven portion of said foaming cylinder being adjacent to said divergent nozzle port so that liquid injected f,4om the divergent nozzle port is dispersed outwardly and directly impinges on the adjacent uneven portion. A nozzle cap according to claim 1, wherein said uneven portion is formed by spirally projecting a projecting strip on the inner peripheral wall of said foamning cylinder.
3. A nozzle oap according to claim 1, v'Aierein said uneven portion is formed by spirally recessing a groove on the inner peripheral wall of said foaming -cylinder.
4. A nozzle cap according to ai 1, wherein said uneven portion is formed bjy peripherally projecting a plurality of ring-like projecting strips on the inner peripheral wall of said foaming cy-linder. 54 A nozzle cap according to claim wherein said uneven porticl Is for-med by peripherally recessing a plurality of ring-like grooves on the inner peripheral Wall of Said foaming cylinder, T I1Zgnp.OSk8.O9s4
6. A nozzle cap according to claim 1, wherei.A said uneven portion is formed by projecting a plurality of projections on the inner peripheral wall of said foaming cylinder.
7. A nozzle cap according to claim 1, wherein said uneven portion Js formed by a plurality of recesses on the inner peripheral wall of said foanling cylinder.
8. A nozzle cap according to claim 1, wherein said uneven portion is formed by forming small projections of a triangular projecting shape at predetermined peripheral intervals on a circumferential plane of tha inner peripheral wall of said foaming cylinder.
9. A nozzle cap according to claim 1, where',in when low viscosity liquid is injected, sold uneven portion is formed on the inner wall nearest said diverijent nozzle port in an axial direction of said foaming cylinder and the length of said uneven portion is less than half the length of said foaming cylinder. A nozzle cap according to claim 1, wherein when a low viscosity liquid is the material to be foamed, the inner cross-sectional opening of said even portion of said foaming cylinder is larger than the maximum inner cross-sectional opening of said uneven portion.
11. A nozzle cap according to claim 1, wherein when high viscosity liquid is injected, the uneven portion is formed in a long range of a direction farther from the nozzle port in an axial direction of said foaming cylinder.
12. A nozzle cap according to claim I, wherein said nozzle body and said foaming cylinder are formed as one 11- integrated part.
13. A nozzle cap ancording to claim 1, wherein when a high viscosity licqu d is the material to be foamed, the inner cross-sectionl opening of said even portion of said &oaming cylinder is smaller than the minimum inner cross-sectional opening of said uneven portion.
14. A trigger type ligu.d dispenser comprising a nozzle cap according to claim 1. A nozzle cap substantially as hereinbefore described 4 with reference to the drawings. DATED this 5th day of November 1990 Yoshino Kogyaho Co., Ltdj By Its Patent Attorneys DAVIES COLLISON 1 I4 pitr~:.rkyo, 809,Jpe
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP87311456A EP0322488B1 (en) | 1987-12-24 | 1987-12-24 | Nozzle cap |
| CA000556361A CA1330211C (en) | 1987-12-24 | 1988-01-12 | Nozzle cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU8309987A AU8309987A (en) | 1989-07-20 |
| AU606640B2 true AU606640B2 (en) | 1991-02-14 |
Family
ID=25671660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU83099/87A Ceased AU606640B2 (en) | 1987-12-24 | 1987-12-29 | Nozzle cap |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0322488B1 (en) |
| AU (1) | AU606640B2 (en) |
| CA (1) | CA1330211C (en) |
| DE (1) | DE3785454T2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2660289B1 (en) * | 1990-04-03 | 1992-07-17 | Oreal | PUSH BUTTON FOR AEROSOL CAN, AND AEROSOL BOTTLE EQUIPPED WITH SUCH A PUSH BUTTON. |
| US5234166A (en) * | 1990-10-25 | 1993-08-10 | Contico International, Inc. | Spinner assembly for a sprayer |
| FR2711930B1 (en) * | 1993-11-03 | 1996-01-26 | Sofab | Spraying device. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4598862A (en) * | 1983-05-31 | 1986-07-08 | The Dow Chemical Company | Foam generating device and process |
| DE3442901A1 (en) * | 1984-11-24 | 1986-06-05 | Zeller Plastik Koehn Graebner | Foam generator |
| US4730775A (en) * | 1986-01-10 | 1988-03-15 | Afa Division Of Waynesboro Textiles, Inc. | Two piece foamer nozzle assembly |
-
1987
- 1987-12-24 DE DE8787311456T patent/DE3785454T2/en not_active Expired - Lifetime
- 1987-12-24 EP EP87311456A patent/EP0322488B1/en not_active Expired - Lifetime
- 1987-12-29 AU AU83099/87A patent/AU606640B2/en not_active Ceased
-
1988
- 1988-01-12 CA CA000556361A patent/CA1330211C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE3785454D1 (en) | 1993-05-19 |
| CA1330211C (en) | 1994-06-14 |
| EP0322488A1 (en) | 1989-07-05 |
| EP0322488B1 (en) | 1993-04-14 |
| AU8309987A (en) | 1989-07-20 |
| DE3785454T2 (en) | 1993-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4979646A (en) | Paste dispenser | |
| US4185777A (en) | Fluidic spray device of simple construction | |
| CA2467687C (en) | Telescoping foamer nozzle | |
| US4971252A (en) | Nozzle cap | |
| US20070290005A1 (en) | Trigger sprayer venting apparatus | |
| US4925384A (en) | Apparatus for admitting hardenable material into the dies of molding machines | |
| CA1108566A (en) | Nozzle assembly | |
| US4991778A (en) | Adjustable nozzle assembly | |
| US4989790A (en) | Nozzle cap, spring valve and body assembly | |
| US4953791A (en) | Manually operated trigger type dispenser, method of assembling the same, and a spinner for use in the dispenser | |
| US4911361A (en) | Manually operated trigger type dispenser, method of assembling the same, and a spinner for use in the dispenser | |
| CA1137141A (en) | Dispensing nozzle | |
| US20040149837A1 (en) | Trigger sprayer spray, off, stream, off indexing nozzle assembly | |
| GB2085092A (en) | Trigger type liquid injector | |
| JPH09225360A (en) | Medium-discharging apparatus, and manufacture of discharge apparatus, etc. | |
| US4940186A (en) | Manually operated trigger type dispenser, a spinner for use in the dispenser, and a flow-pattern switching mechanism for use in the dispenser | |
| US5267692A (en) | Adjustable nozzle assembly | |
| AU610152B2 (en) | A method of assembling a manually operated trigger type dispenser | |
| AU606640B2 (en) | Nozzle cap | |
| US20050167452A1 (en) | Perfume sample device | |
| JPH0543879Y2 (en) | ||
| US6382527B1 (en) | Hand-activated dispensing pump having sprayer/foamer selector wheel | |
| US2084057A (en) | Fuel injector | |
| JPH0634858Y2 (en) | Liquid bubble injector nozzle | |
| JPH0448834Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |