HK1009595A1 - Stereolithographic apparatus with means to measure and control the level of fluid - Google Patents

Stereolithographic apparatus with means to measure and control the level of fluid

Info

Publication number
HK1009595A1
HK1009595A1 HK98110328A HK98110328A HK1009595A1 HK 1009595 A1 HK1009595 A1 HK 1009595A1 HK 98110328 A HK98110328 A HK 98110328A HK 98110328 A HK98110328 A HK 98110328A HK 1009595 A1 HK1009595 A1 HK 1009595A1
Authority
HK
Hong Kong
Prior art keywords
fluid
level
layer
measure
control
Prior art date
Application number
HK98110328A
Other languages
English (en)
Inventor
Thomas A Almquist
Charles W Hull
Borzo Modrek
Andrzej R Serkuczewski
Paul F Jacobs
Charles W Lewis
Mark A Lewis
Abraham Liran
Original Assignee
3D Systems 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26940037&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK1009595(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 3D Systems Inc filed Critical 3D Systems Inc
Publication of HK1009595A1 publication Critical patent/HK1009595A1/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/12—Spreading-out the material on a substrate, e.g. on the surface of a liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
    • B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
    • B29C64/135—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/32—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements
    • G01F23/36—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means
    • G01F23/366—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means using optoelectrically actuated indicating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0072—Roughness, e.g. anti-slip
    • B29K2995/0073—Roughness, e.g. anti-slip smooth
HK98110328A 1988-09-26 1998-08-31 Stereolithographic apparatus with means to measure and control the level of fluid HK1009595A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24939988A 1988-09-26 1988-09-26
US26503988A 1988-10-31 1988-10-31

Publications (1)

Publication Number Publication Date
HK1009595A1 true HK1009595A1 (en) 1999-06-04

Family

ID=26940037

Family Applications (3)

Application Number Title Priority Date Filing Date
HK98100602A HK1002908A1 (en) 1988-09-26 1998-01-22 Recoating stereolithographic layers
HK98102087A HK1004477A1 (en) 1988-09-26 1998-03-12 Recoating of stereolithographic layers
HK98110328A HK1009595A1 (en) 1988-09-26 1998-08-31 Stereolithographic apparatus with means to measure and control the level of fluid

Family Applications Before (2)

Application Number Title Priority Date Filing Date
HK98100602A HK1002908A1 (en) 1988-09-26 1998-01-22 Recoating stereolithographic layers
HK98102087A HK1004477A1 (en) 1988-09-26 1998-03-12 Recoating of stereolithographic layers

Country Status (11)

Country Link
EP (3) EP0681905B1 (xx)
JP (3) JP3030855B2 (xx)
KR (1) KR100189270B1 (xx)
AT (3) ATE130793T1 (xx)
CA (1) CA1337955C (xx)
DE (3) DE68929292T2 (xx)
ES (1) ES2082782T3 (xx)
HK (3) HK1002908A1 (xx)
IL (1) IL91784A (xx)
SG (1) SG49722A1 (xx)
WO (1) WO1990003255A1 (xx)

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DE19514740C1 (de) * 1995-04-21 1996-04-11 Eos Electro Optical Syst Vorrichtung und Verfahren zum Herstellen eines dreidimensionalen Objektes
DE19515165C2 (de) * 1995-04-25 1997-03-06 Eos Electro Optical Syst Vorrichtung zum Herstellen eines Objektes mittels Stereolithographie
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US5910319A (en) * 1997-05-29 1999-06-08 Eli Lilly And Company Fluoxetine enteric pellets and methods for their preparation and use
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Also Published As

Publication number Publication date
EP0361847A3 (en) 1991-10-09
DE68929292T2 (de) 2001-08-23
SG49722A1 (en) 1998-06-15
JP2001287272A (ja) 2001-10-16
KR100189270B1 (ko) 1999-06-01
EP0361847B1 (en) 1995-11-29
HK1004477A1 (en) 1998-11-27
DE68929292D1 (de) 2001-05-23
EP0681904B1 (en) 2002-01-09
ATE200644T1 (de) 2001-05-15
JP3359026B2 (ja) 2002-12-24
DE68929366T2 (de) 2002-09-26
EP0681904A2 (en) 1995-11-15
EP0681905A1 (en) 1995-11-15
JP3373830B2 (ja) 2003-02-04
CA1337955C (en) 1996-01-23
WO1990003255A1 (en) 1990-04-05
ATE130793T1 (de) 1995-12-15
JP2000141496A (ja) 2000-05-23
ES2082782T3 (es) 1996-04-01
EP0681904A3 (en) 1996-02-07
IL91784A0 (en) 1990-06-10
DE68924952D1 (de) 1996-01-11
DE68924952T2 (de) 1996-06-13
EP0361847A2 (en) 1990-04-04
JP3030855B2 (ja) 2000-04-10
IL91784A (en) 1993-07-08
ATE211679T1 (de) 2002-01-15
KR900701494A (ko) 1990-12-03
DE68929366D1 (de) 2002-02-14
HK1002908A1 (en) 1998-09-25
JPH04503634A (ja) 1992-07-02
EP0681905B1 (en) 2001-04-18

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