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WO2002038280A3 - A wetting-resistant nozzle for dispensing small volumes of liquid and a method for manufacturing a wetting-resistant nozzle - Google Patents

A wetting-resistant nozzle for dispensing small volumes of liquid and a method for manufacturing a wetting-resistant nozzle Download PDF

Info

Publication number
WO2002038280A3
WO2002038280A3 PCT/US2001/047041 US0147041W WO0238280A3 WO 2002038280 A3 WO2002038280 A3 WO 2002038280A3 US 0147041 W US0147041 W US 0147041W WO 0238280 A3 WO0238280 A3 WO 0238280A3
Authority
WO
WIPO (PCT)
Prior art keywords
low surface
wetting
surface energy
nozzle
resistant nozzle
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
Application number
PCT/US2001/047041
Other languages
French (fr)
Other versions
WO2002038280A2 (en
Inventor
Peter A Materna
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AFBS Inc
Original Assignee
Therics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Therics Inc filed Critical Therics Inc
Priority to EP01989987A priority Critical patent/EP1370365A2/en
Priority to AU2002228864A priority patent/AU2002228864A1/en
Publication of WO2002038280A2 publication Critical patent/WO2002038280A2/en
Anticipated expiration legal-status Critical
Publication of WO2002038280A3 publication Critical patent/WO2002038280A3/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/0241—Drop counters; Drop formers
    • 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
    • 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
    • B05C13/00—Means for manipulating or holding work, e.g. for separate articles
    • B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
    • B05C13/025—Means for manipulating or holding work, e.g. for separate articles for particular articles relatively small cylindrical objects, e.g. cans, bottles
    • 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
    • B05C5/0208—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 for applying liquid or other fluent material to separate articles
    • B05C5/0212—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 for applying liquid or other fluent material to separate articles only at particular parts of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/16—Surface properties and coatings
    • B01L2300/161—Control and use of surface tension forces, e.g. hydrophobic, hydrophilic
    • B01L2300/165—Specific details about hydrophobic, oleophobic surfaces
    • B01L2300/166—Suprahydrophobic; Ultraphobic; Lotus-effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
    • B05B13/0228—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the movement of the objects being rotative

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nozzles (AREA)

Abstract

A wetting-resistant nozzle for accurately and precisely dispensing small volumes of liquids. The nozzle comprises an internal flowpath, and an external surface that recedes from the discharge point at an angle greater than 90 degrees, and an exceptionally low surface energy for the external surface. The low surface energy material may exist as a coating on top of a shaped substrate. A flat land region may be included and may have sharp edges, one of which may define the boundary of the low surface energy region. Another embodiment includes the low surface energy material as a bulk material through which a hole is drilled. The internal flowpath inside the nozzle may be smoothly tapered. Liquid being dispensed tends not to advance past the edge of the low surface energy region, which may coincide with a geometrically sharp edge. Such nozzles provide improved dispensing of liquids that have both low surface tension and low viscosity, such as organic solvents.
PCT/US2001/047041 2000-11-10 2001-11-13 A wetting-resistant nozzle for dispensing small volumes of liquid and a method for manufacturing a wetting-resistant nozzle Ceased WO2002038280A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP01989987A EP1370365A2 (en) 2000-11-10 2001-11-13 A wetting-resistant nozzle for dispensing small volumes of liquid and a method for manufacturing a wetting-resistant nozzle
AU2002228864A AU2002228864A1 (en) 2000-11-10 2001-11-13 A wetting-resistant nozzle for dispensing small volumes of liquid and a method for manufacturing a wetting-resistant nozzle

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US24717600P 2000-11-10 2000-11-10
US60/247,176 2000-11-10
US28478301P 2001-04-18 2001-04-18
US60/284,783 2001-04-18
US28802501P 2001-05-01 2001-05-01
US60/288,025 2001-05-01

Publications (2)

Publication Number Publication Date
WO2002038280A2 WO2002038280A2 (en) 2002-05-16
WO2002038280A3 true WO2002038280A3 (en) 2003-10-09

Family

ID=27400019

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/047041 Ceased WO2002038280A2 (en) 2000-11-10 2001-11-13 A wetting-resistant nozzle for dispensing small volumes of liquid and a method for manufacturing a wetting-resistant nozzle

Country Status (4)

Country Link
US (1) US20020084290A1 (en)
EP (1) EP1370365A2 (en)
AU (1) AU2002228864A1 (en)
WO (1) WO2002038280A2 (en)

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Also Published As

Publication number Publication date
US20020084290A1 (en) 2002-07-04
WO2002038280A2 (en) 2002-05-16
EP1370365A2 (en) 2003-12-17
AU2002228864A1 (en) 2002-05-21

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