EP0040068A1 - Liquid dispensing device - Google Patents
Liquid dispensing device Download PDFInfo
- Publication number
- EP0040068A1 EP0040068A1 EP19810302056 EP81302056A EP0040068A1 EP 0040068 A1 EP0040068 A1 EP 0040068A1 EP 19810302056 EP19810302056 EP 19810302056 EP 81302056 A EP81302056 A EP 81302056A EP 0040068 A1 EP0040068 A1 EP 0040068A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- valve
- needle valve
- liquid
- bore
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/02—Applying adhesives or sealing liquids
- B65B51/023—Applying adhesives or sealing liquids using applicator nozzles
-
- 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
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
- B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
- B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
- B05B1/306—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the actuating means being a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
Definitions
- This invention relates to liquid dispensing devices and particularly to devices adapted for dispensing relatively viscous sticky substances such as adhesives, hot melts, sealing compounds, etc.
- dispensers there are many applications for dispensers in which it is desirable or necessary to sharply cut off the flow of liquid from the nozzle of the device without any drooling, dripping, or stringing of the liquid from the nozzle after closing of the nozzle. To that end there has been a long standing need for a dispensing device which would sharply cut off the flow of liquid from the nozzle when the valve of the nozzle is closed.
- sharp cut off of flow without stringing from the nozzle of the dispensing device is achieved by providing a small orifice in a very small radius semi-spherical end surface of the nozzle.
- the radius of the semi-spherical end may for example be between 0.05 inches and 0.10 inches. Further advantages are obtained if the needle valve is mounted wholly inside the nozzle with the valve tip located at the noale tip so that on closure of the valve there is no cavity from which the liquid dispensed from the nozzle can drip.
- the nozzle orifice is only .020 inch in diameter and the nozzle tip is semi-spherical in shape and only .084 inch in radius.
- a nozzle thus configurated and having a frustoconical valve seat located immediately adjacent the nozzle orifice has been found to result in a nozzle which materially reduces the amount of stringing of material between the nozzle and substrate upon which the material is being deposited.
- the improved seating of the needle valve on the valve seat of a dispenser of the invention with the consequent reduction of dripping or drooling or stringing from the nozzle may be achieved by providing a needle valve guide surface within a bushing contained in the nozzle and located immediately adjacent the nozzle valve seat.
- the nozzle may include a guide bushing press fit into the nozzle and having peripheral channels or grooves through which liquid may flow from the interior of the device to the valve seat.
- a dispenser of the invention provides very sharp cut off of liquid flow from the nozzle whenever the valve of the dispensing device is closed. Consequently, there is no dripping of liquid from the device after valve closing. If the device is used to dispense very viscous substances such as adhesive or sealing compounds, this unique nozzle and needle valve guide structure materially - reduces stringing of the viscous substance between the nozzle orifice and the substrate on which the viscous substance is deposited.
- a dispensing gun 10 has a generally cylindrical body 11, an end cap 12, and a nozzle 13.
- the end cap 12, body 11, and. nozzle 13 all have a longitudinal bore extending therethrough within which there is located an axially movable needle valve 14 for controlling flow of liquid from the orifice 16 of the nozzle 13.
- the valve body 11 has a stepped axial bore 20, the larger diameter section 21 of which is located at the forward end of the body. This larger diameter section 21 is intersected by a transverse passage 22 through which liquid is supplied to the gun. Additionally, a vent port 23 intersects the smaller diameter section 24 of the bore 20. There is also an air inlet passage 25 which connects the rear end of the valve body with an inlet air port 26.
- a bushing 27 is located within the bore 20 of the body 11. This bushing supports seal assemblies 29 and 30 within a bore 28 which extends longitudinally through the bushing.
- This piston assembly 35 mounted upon the needle valve 14 for controlling movement of the needle valve 14.
- This piston assembly comprises a nut 36 threaded onto a threaded section 37 of the needle valve and a piston retainer ring 38 sealingly secured onto the periphery of the nut 36.
- This retainer ring carries a pair of piston rings 39, 40 between which there is sandwiched a resilient gasket 41.
- the outer edge of this gasket 41 contacts the interior surface of a cylinder 42 formed on.the interior of the end cap so as to form a pneumatic seal between the lower side of the piston and the surface of the cylinder 42.
- the end cap 12 is bolted onto the upper end of the body 11 by bolts (not shown).
- a resilient gasket seal 44 is located between the contacting surfaces of the end cap and the body.
- a stepped axial bore 45 which extends through the end cap.
- the upper smaller diamter section 46 of this stepped bore is threaded and receives an adjustment stud 47.
- a lock nut 48 secures the stud 47 in a position of axial adjustment.
- this compression spring 50 Between the bottom surface of the stud 47 and the top of the piston assembly 35, there is a compression spring 50.
- the upper end of this compression spring 50 contacts the bottom surface of the stud 47 and the lower end of the spring 50 contacts the top surface of a spring retainer 51.
- This spring retainer is supported upon the top surface of the piston assembly nut 36.
- the nozzle 13 contains a generally cylindrical axial bore 60 which extends forwardly from the rear of the nozzle until it intersects a frustoconical valve seat 61 at the forward end of the nozzle.
- This frustoconical valve seat 61 in turn communicates with a small cylindrical nozzle orifice 16 through which liquid exits from the nozzle.
- this orifice is approximately :020 inch in diameter and the valve seat 61 defines an included angle of 34°.
- This bushing 90 Press fit into the bore 60 there is a guide bushing 90.
- This bushing 90 has a central axial bore 91 through which a needle valve 14 passes. Additionally, it has four equidistantly spaced longitudinal channels or grooves 92 in its peripheral surface through which liquid may flow from the interior of the gun body 11 to the nozzle orifice 16 as is explained more fully hereinafter.
- the needle valve 14 At its forward end the needle valve 14 has a cylindrical section 65 slideably received within the bore 91 of the guide bushing 90.
- This sliding fit requires that the bore 91 be slightly larger than the cylindrical section 65 of the needle, but that there be no more than approximately .002 inch clearance between the bore and the needle valve.
- the clearance is approximately .001 inch.
- the needle valve 14 terminates in a frustoconical shaped valve section 66 engageable with the frustoconical shaped valve seat 61 in the nozzle 13.
- the frustoconical shaped end section 66 of the needle valve defines an included angle ⁇ of approximately 30° while the valve seat 61 defines an included angle B of approximately 34°.
- the exterior surface 67 of the nozzle tip is also tapered at approximately 34°. Consequently, there is some slight clearance between the frustoconical shaped section of the needle valve 65 and the valve seat 61 at the rearward end of the valve seat.
- the nozzle tip is semi-spherical and has a very small radius of 0,084 inches.
- the nozzle 13 has a cylindrical hub section 70 which is tightly fitted within the large diameter section 21 of cylindrical bore 20 in the body 11. Forwardly of the hub section 70, there is a flange 71 which is bolted to the forward end of the body 11 by conventional threaded connectors 73.
- a flange 71 which is bolted to the forward end of the body 11 by conventional threaded connectors 73.
- an 0-ring seal 74 contained within a channel 75 formed in the forward end of the dispenser body 11. This seal 74 prevents any leakage of liquid between the nozzle 13 and the body ll.
- a spring 76 located between the rearward end of the nozzle 13 and the forward end of the bushing seal assembly 29. This spring 76 biases the bushing rearwardly and maintains a flange 77 of the bushing engaged with a shoulder 78 formed in the bore 20.
- liquid under pressure is supplied to the liquid inlet port 80 of the device.
- This port communicates via passage 22 with the bore 20 of the body 10 such that liquid supplied to the port 80 flows into a liquid storage chamber 81 contained within the device.
- This chamber 81 is in turn open to the longitudinal passages 92 within the guide bushing 90.
- the most important advantage of this invention resides in the fact that when it is used to dispense high viscosity liquids such as adhesives or sealing gasket material compounds, etc., it materially eliminates or reduces stringing of material from the nozzle orifice after valve closing.
- This advantage is apparently partially attributable to the needle valve guide surface being in close proximity to the nozzle valve seat and partially attributable to the small radius semi-spherical tip on the nozzle.
- the needle valve guide surfaces on the guide bushing apparently maintains the needle valve concentric to the valve seat with the result that sharp cut off of flow and the reduction or elimination of stringing is enhanced and apparently the small radius semi-spherical tip on the nozzle also contributes to this reduction.
Abstract
Description
- This invention relates to liquid dispensing devices and particularly to devices adapted for dispensing relatively viscous sticky substances such as adhesives, hot melts, sealing compounds, etc.
- There are many applications for dispensers in which it is desirable or necessary to sharply cut off the flow of liquid from the nozzle of the device without any drooling, dripping, or stringing of the liquid from the nozzle after closing of the nozzle. To that end there has been a long standing need for a dispensing device which would sharply cut off the flow of liquid from the nozzle when the valve of the nozzle is closed.
- In a dispenser in accordance with the invention sharp cut off of flow without stringing from the nozzle of the dispensing device is achieved by providing a small orifice in a very small radius semi-spherical end surface of the nozzle.
- The radius of the semi-spherical end may for example be between 0.05 inches and 0.10 inches. Further advantages are obtained if the needle valve is mounted wholly inside the nozzle with the valve tip located at the noale tip so that on closure of the valve there is no cavity from which the liquid dispensed from the nozzle can drip.
- In a preferred-embodiment, the nozzle orifice is only .020 inch in diameter and the nozzle tip is semi-spherical in shape and only .084 inch in radius. A nozzle thus configurated and having a frustoconical valve seat located immediately adjacent the nozzle orifice has been found to result in a nozzle which materially reduces the amount of stringing of material between the nozzle and substrate upon which the material is being deposited.
- The improved seating of the needle valve on the valve seat of a dispenser of the invention with the consequent reduction of dripping or drooling or stringing from the nozzle may be achieved by providing a needle valve guide surface within a bushing contained in the nozzle and located immediately adjacent the nozzle valve seat. To that end, the nozzle may include a guide bushing press fit into the nozzle and having peripheral channels or grooves through which liquid may flow from the interior of the device to the valve seat.
- The primary advantage of a dispenser of the invention is that it provides very sharp cut off of liquid flow from the nozzle whenever the valve of the dispensing device is closed. Consequently, there is no dripping of liquid from the device after valve closing. If the device is used to dispense very viscous substances such as adhesive or sealing compounds, this unique nozzle and needle valve guide structure materially - reduces stringing of the viscous substance between the nozzle orifice and the substrate on which the viscous substance is deposited.
- The invention will now be described by way of example with reference to the accompanying drawings in which:
- Figure l.is a cross sectional view of one embodiment of a dispensing device incorporating the invention of this application.
- Figure 2 is an enlarged cross sectional view of the nozzle and nozzle orifice of the dispensing device illustrated in Figure 1.
- Figure 3 is a cross sectional view taken on line 3-3 of Figure 2.
- Referring to Figures 1 and 2, a dispensing
gun 10 has a generally cylindrical body 11, anend cap 12, and anozzle 13. Theend cap 12, body 11, and.nozzle 13 all have a longitudinal bore extending therethrough within which there is located an axiallymovable needle valve 14 for controlling flow of liquid from theorifice 16 of thenozzle 13. - The valve body 11 has a stepped
axial bore 20, thelarger diameter section 21 of which is located at the forward end of the body. Thislarger diameter section 21 is intersected by atransverse passage 22 through which liquid is supplied to the gun. Additionally, avent port 23 intersects thesmaller diameter section 24 of thebore 20. There is also anair inlet passage 25 which connects the rear end of the valve body with aninlet air port 26. - A
bushing 27 is located within thebore 20 of the body 11. This bushing supportsseal assemblies bore 28 which extends longitudinally through the bushing. - To prevent fluid flow around the
bushing 27, there is an annular groove in the surface of the bushing within which there is an O-ring seal 31. Additionally, there is an O-ring seal 32 contained within an annular channel formed in the valve body 11. There is apiston assembly 35 mounted upon theneedle valve 14 for controlling movement of theneedle valve 14. This piston assembly comprises a nut 36 threaded onto a threaded section 37 of the needle valve and apiston retainer ring 38 sealingly secured onto the periphery of the nut 36. This retainer ring carries a pair ofpiston rings resilient gasket 41. The outer edge of thisgasket 41 contacts the interior surface of acylinder 42 formed on.the interior of the end cap so as to form a pneumatic seal between the lower side of the piston and the surface of thecylinder 42. - The
end cap 12 is bolted onto the upper end of the body 11 by bolts (not shown). Preferably, aresilient gasket seal 44 is located between the contacting surfaces of the end cap and the body. - Communicating with the
cylinder 42 formed in theend cap 12, there is a stepped axial bore 45 which extends through the end cap. The uppersmaller diamter section 46 of this stepped bore is threaded and receives an adjustment stud 47. Alock nut 48 secures the stud 47 in a position of axial adjustment. - Between the bottom surface of the stud 47 and the top of the
piston assembly 35, there is acompression spring 50. The upper end of thiscompression spring 50 contacts the bottom surface of the stud 47 and the lower end of thespring 50 contacts the top surface of a spring retainer 51. This spring retainer is supported upon the top surface of the piston assembly nut 36. By adjusting the axial position of the stud 47 within thebore 46, the closing force for retaining the needle valve closed may be adjusted or varied. - With particular reference to Figures 2 and 3, it will be seen that the
nozzle 13 contains a generally cylindricalaxial bore 60 which extends forwardly from the rear of the nozzle until it intersects afrustoconical valve seat 61 at the forward end of the nozzle. Thisfrustoconical valve seat 61 in turn communicates with a smallcylindrical nozzle orifice 16 through which liquid exits from the nozzle. In a preferred embodiment, this orifice is approximately :020 inch in diameter and thevalve seat 61 defines an included angle of 34°. - Press fit into the
bore 60 there is a guide bushing 90. Thisbushing 90 has a central axial bore 91 through which aneedle valve 14 passes. Additionally, it has four equidistantly spaced longitudinal channels orgrooves 92 in its peripheral surface through which liquid may flow from the interior of the gun body 11 to thenozzle orifice 16 as is explained more fully hereinafter. - At its forward end the
needle valve 14 has acylindrical section 65 slideably received within the bore 91 of the guide bushing 90. This sliding fit requires that the bore 91 be slightly larger than thecylindrical section 65 of the needle, but that there be no more than approximately .002 inch clearance between the bore and the needle valve. Preferably, the clearance is approximately .001 inch. - At its forward end the
needle valve 14 terminates in a frustoconicalshaped valve section 66 engageable with the frustoconicalshaped valve seat 61 in thenozzle 13. The frustoconicalshaped end section 66 of the needle valve defines an included angle α of approximately 30° while thevalve seat 61 defines an included angle B of approximately 34°. Theexterior surface 67 of the nozzle tip is also tapered at approximately 34°. Consequently, there is some slight clearance between the frustoconical shaped section of theneedle valve 65 and thevalve seat 61 at the rearward end of the valve seat. - The nozzle tip is semi-spherical and has a very small radius of 0,084 inches. The
nozzle 13 has acylindrical hub section 70 which is tightly fitted within thelarge diameter section 21 ofcylindrical bore 20 in the body 11. Forwardly of thehub section 70, there is aflange 71 which is bolted to the forward end of the body 11 by conventional threadedconnectors 73. Preferably,there is an 0-ring seal 74 contained within a channel 75 formed in the forward end of the dispenser body 11. Thisseal 74 prevents any leakage of liquid between thenozzle 13 and the body ll. - To prevent any movement of the
bushing 27 within thebore 20, there is aspring 76 located between the rearward end of thenozzle 13 and the forward end of thebushing seal assembly 29. Thisspring 76 biases the bushing rearwardly and maintains aflange 77 of the bushing engaged with ashoulder 78 formed in thebore 20. - In operation, liquid under pressure is supplied to the liquid inlet port 80 of the device. This port communicates via
passage 22 with thebore 20 of thebody 10 such that liquid supplied to the port 80 flows into aliquid storage chamber 81 contained within the device. Thischamber 81 is in turn open to thelongitudinal passages 92 within the guide bushing 90. - Whenever the device is to be actuated so as to permit liquid to flow from the
storage chamber 81 through thepassages 92 and past thevalve seat 61 to theorifice 16, high pressure air is supplied to theport 26. This high pressure air overcomes the bias of thespring 50 and causes thepiston assembly 35 to move upwardly, carrying with itneedle valve 14. This upward movement of the needle valve results in the lifting of theconical section 66 of the valve off of theseat 61 and, results in flow of liquid from thestorage chamber 81 through thepassages 92 via the valve to theorifice 16. This flow continues so long as the air pressure is maintained to theport 26. When that air pressure is relieved, as for example by actuation of a controlling pneumatic valve (not shown) thespring 50 effects closing movement of the valve - The most important advantage of this invention resides in the fact that when it is used to dispense high viscosity liquids such as adhesives or sealing gasket material compounds, etc., it materially eliminates or reduces stringing of material from the nozzle orifice after valve closing. This advantage is apparently partially attributable to the needle valve guide surface being in close proximity to the nozzle valve seat and partially attributable to the small radius semi-spherical tip on the nozzle. The needle valve guide surfaces on the guide bushing apparently maintains the needle valve concentric to the valve seat with the result that sharp cut off of flow and the reduction or elimination of stringing is enhanced and apparently the small radius semi-spherical tip on the nozzle also contributes to this reduction.
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14857780A | 1980-05-09 | 1980-05-09 | |
US148577 | 1988-01-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0040068A1 true EP0040068A1 (en) | 1981-11-18 |
EP0040068B1 EP0040068B1 (en) | 1985-08-07 |
Family
ID=22526372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19810302056 Expired EP0040068B1 (en) | 1980-05-09 | 1981-05-08 | Liquid dispensing device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0040068B1 (en) |
JP (1) | JPS574267A (en) |
CA (1) | CA1155094A (en) |
DE (1) | DE3171682D1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0066017A1 (en) * | 1981-05-27 | 1982-12-08 | Nordson Corporation | Liquid dispensing device |
EP0107808A2 (en) * | 1982-10-04 | 1984-05-09 | Intec Bielenberg GmbH & Co. KG | Device for dispensing thick materials in dosed quantities |
EP0237190A2 (en) * | 1986-02-12 | 1987-09-16 | Sony Corporation | Viscous substance applying apparatus |
FR2617062A1 (en) * | 1987-03-24 | 1988-12-30 | Projets Nouveaux | Metering dispenser for a hot-melt adhesive |
EP0588562A1 (en) * | 1992-09-15 | 1994-03-23 | Lechler Limited | Valve |
EP0700730A1 (en) * | 1994-09-06 | 1996-03-13 | Loctite (Ireland) Limited | Applicator for liquids such as adhesives |
EP0790080A3 (en) * | 1996-02-16 | 1998-07-22 | Nireco Corporation | Hot melt applicator and nozzle used therefor |
CN103785560A (en) * | 2013-04-27 | 2014-05-14 | 广州海鸥卫浴用品股份有限公司 | Spray needle for jet flow device |
CN103894316B (en) * | 2012-12-27 | 2017-02-08 | 鸿富锦精密工业(深圳)有限公司 | Dispensing method of light emitting diode |
US20210178676A1 (en) * | 2018-06-12 | 2021-06-17 | Q.big 3D GmbH | Apparatus and method for producing three-dimensional objects |
CN114453196A (en) * | 2022-02-22 | 2022-05-10 | 程龙堂 | Flange plate sealing dispensing system |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH075910B2 (en) * | 1986-03-22 | 1995-01-25 | 忠生 白石 | Sanitary products containing encapsulated enzymes |
JPH01168373A (en) * | 1987-12-22 | 1989-07-03 | Bridgestone Corp | Identification mark coating device |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB398788A (en) * | 1931-12-12 | 1933-09-21 | Otto Treichel | Improvements in or relating to apparatus for spraying liquids |
US2670241A (en) * | 1951-05-22 | 1954-02-23 | George S Pyles | Flow gun |
US2865675A (en) * | 1956-04-13 | 1958-12-23 | Vernon D Roosa | Fuel injection nozzle |
US2983480A (en) * | 1956-07-02 | 1961-05-09 | Grace W R & Co | Valve stem and reciprocating shaft seal |
FR1463455A (en) * | 1966-01-10 | 1966-12-23 | Pressure regulator for jet launcher | |
DE2055127A1 (en) * | 1970-11-10 | 1972-05-31 | Cast, Adolf, Dipl.-Ing., 7311 Oberlenningen | Gluing apparatus and method |
US4066188A (en) * | 1976-08-10 | 1978-01-03 | Nordson Corporation | Thermoplastic adhesive dispenser having an internal heat exchanger |
-
1981
- 1981-04-23 CA CA000376106A patent/CA1155094A/en not_active Expired
- 1981-05-08 EP EP19810302056 patent/EP0040068B1/en not_active Expired
- 1981-05-08 DE DE8181302056T patent/DE3171682D1/en not_active Expired
- 1981-05-09 JP JP6892281A patent/JPS574267A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB398788A (en) * | 1931-12-12 | 1933-09-21 | Otto Treichel | Improvements in or relating to apparatus for spraying liquids |
US2670241A (en) * | 1951-05-22 | 1954-02-23 | George S Pyles | Flow gun |
US2865675A (en) * | 1956-04-13 | 1958-12-23 | Vernon D Roosa | Fuel injection nozzle |
US2983480A (en) * | 1956-07-02 | 1961-05-09 | Grace W R & Co | Valve stem and reciprocating shaft seal |
FR1463455A (en) * | 1966-01-10 | 1966-12-23 | Pressure regulator for jet launcher | |
DE2055127A1 (en) * | 1970-11-10 | 1972-05-31 | Cast, Adolf, Dipl.-Ing., 7311 Oberlenningen | Gluing apparatus and method |
US4066188A (en) * | 1976-08-10 | 1978-01-03 | Nordson Corporation | Thermoplastic adhesive dispenser having an internal heat exchanger |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0066017A1 (en) * | 1981-05-27 | 1982-12-08 | Nordson Corporation | Liquid dispensing device |
EP0107808A2 (en) * | 1982-10-04 | 1984-05-09 | Intec Bielenberg GmbH & Co. KG | Device for dispensing thick materials in dosed quantities |
EP0107808A3 (en) * | 1982-10-04 | 1985-12-04 | Intec Bielenberg Gmbh & Co. Kg | Device for dispensing thick materials in dosed quantities |
EP0237190A2 (en) * | 1986-02-12 | 1987-09-16 | Sony Corporation | Viscous substance applying apparatus |
EP0237190A3 (en) * | 1986-02-12 | 1988-09-14 | Sony Corporation | Viscous substance applying apparatus |
FR2617062A1 (en) * | 1987-03-24 | 1988-12-30 | Projets Nouveaux | Metering dispenser for a hot-melt adhesive |
EP0588562A1 (en) * | 1992-09-15 | 1994-03-23 | Lechler Limited | Valve |
US5794825A (en) * | 1994-09-06 | 1998-08-18 | Loctite (Ireland) Limited | Applicator for liquids such as adhesives |
EP0700730A1 (en) * | 1994-09-06 | 1996-03-13 | Loctite (Ireland) Limited | Applicator for liquids such as adhesives |
EP0790080A3 (en) * | 1996-02-16 | 1998-07-22 | Nireco Corporation | Hot melt applicator and nozzle used therefor |
US5934521A (en) * | 1996-02-16 | 1999-08-10 | Nireco Corporation | Hot melt applicator and nozzle used therefor |
CN103894316B (en) * | 2012-12-27 | 2017-02-08 | 鸿富锦精密工业(深圳)有限公司 | Dispensing method of light emitting diode |
CN103785560A (en) * | 2013-04-27 | 2014-05-14 | 广州海鸥卫浴用品股份有限公司 | Spray needle for jet flow device |
WO2014173071A1 (en) * | 2013-04-27 | 2014-10-30 | 广州海鸥卫浴用品股份有限公司 | Spray needle for jet device |
CN103785560B (en) * | 2013-04-27 | 2016-12-07 | 广州海鸥卫浴用品股份有限公司 | Nozzle needle for mjector |
US20210178676A1 (en) * | 2018-06-12 | 2021-06-17 | Q.big 3D GmbH | Apparatus and method for producing three-dimensional objects |
CN114453196A (en) * | 2022-02-22 | 2022-05-10 | 程龙堂 | Flange plate sealing dispensing system |
CN114453196B (en) * | 2022-02-22 | 2024-01-12 | 长子县金鑫机械电杆有限公司 | Sealing and dispensing system for flange plate |
Also Published As
Publication number | Publication date |
---|---|
DE3171682D1 (en) | 1985-09-12 |
CA1155094A (en) | 1983-10-11 |
JPS574267A (en) | 1982-01-09 |
EP0040068B1 (en) | 1985-08-07 |
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