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1. (WO1997018933) METHOD OF MAKING A THREE-DIMENSIONAL OBJECT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/018933 International Application No.: PCT/GB1996/002874
Publication Date: 29.05.1997 International Filing Date: 21.11.1996
Chapter 2 Demand Filed: 05.06.1997
IPC:
B22C 7/02 (2006.01) ,B22C 9/04 (2006.01) ,B28B 1/30 (2006.01) ,B28B 7/34 (2006.01) ,B29C 33/38 (2006.01) ,B29C 67/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
C
FOUNDRY MOULDING
7
Patterns; Manufacture thereof so far as not provided for in other classes
02
Lost patterns
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
C
FOUNDRY MOULDING
9
Moulds or cores; Moulding processes
02
Sand moulds or like moulds for shaped castings
04
Use of lost patterns
B PERFORMING OPERATIONS; TRANSPORTING
28
WORKING CEMENT, CLAY, OR STONE
B
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
1
Producing shaped articles from the material
30
by applying the material on to a core, or other moulding surface to form a layer thereon
B PERFORMING OPERATIONS; TRANSPORTING
28
WORKING CEMENT, CLAY, OR STONE
B
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
7
Moulds; Cores; Mandrels
34
Moulds, cores, or mandrels of special material, e.g. destructible materials
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
33
Moulds or cores; Details thereof or accessories therefor
38
characterised by the material or the manufacturing process
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
67
Shaping techniques not covered by groups B29C39/-B29C65/93
Applicants:
THE UNIVERSITY OF NOTTINGHAM [GB/GB]; University Park Nottingham NG7 2RD, GB (AllExceptUS)
DICKENS, Philip, Michael [GB/GB]; GB (UsOnly)
HAGUE, Richard, James, Mackenzie [GB/GB]; GB (UsOnly)
Inventors:
DICKENS, Philip, Michael; GB
HAGUE, Richard, James, Mackenzie; GB
Agent:
SALES, Robert, Reginald; Swindell & Pearson 48 Friar Gate Derby DE1 1GY, GB
Priority Data:
9524018.023.11.1995GB
Title (EN) METHOD OF MAKING A THREE-DIMENSIONAL OBJECT
(FR) PROCEDE DE FABRICATION D'UN OBJET TRIDIMENSIONNEL
Abstract:
(EN) A method of making a structure by stereolithography. The method comprising producing a structure comprising sets of parallel plates (13, 15, 17). The plates (13, 15, 17) are provided in three different levels in a repeating pattern, with each set of plates in an adjacent level rotated through 120° such that in plan view the plates (13, 15, 17) define a plurality of hexagonal formations. The invention also comprises a method of producing a mould, the method comprising forming a pattern of an item to be cast in the form of an object made according to the above mentioned method, forming a coating around the pattern, and subsequently removing the pattern from within the coating to form a mould.
(FR) Procédé de fabrication d'une structure par stéréolithographie. Le procédé consiste à produire une structure comprenant des ensembles de plaques parallèles (13, 15, 17). Ces plaques (13, 15, 17) sont placées sur trois niveaux différents selon un schéma répétitif, chaque ensemble de plaques formant un angle de 120o par rapport à un niveau adjacent, de sorte qu'en projection planaire les plaques (13, 15, 17) définissent une pluralité de formations hexagonales. L'invention porte également sur un procédé de fabrication d'un moule, ce procédé consistant à former un modèle d'un article à fondre sous la forme d'un objet réalisé suivant le procédé décrit, à former un revêtement autour du modèle, puis à retirer le modèle situé à l'intérieur pour obtenir un moule.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0865348US6110602JP2000500707 DE000069616585GB2307439AU1996076328