公开(公告)号：AT185514T

公开(公告)日：1999-10-15

申请号：AT91905456

申请日：1991-02-15

Applicant: 3D SYSTEMS INC

Inventor： HELLER TIMMY BOYD ,  HILL RAY MCGAFFEY ,  SAGGAL ABDALLA F

IPC: B29C67/00

公开(公告)号：CA2075985A1

公开(公告)日：1991-08-22

申请号：CA2075985

申请日：1991-02-15

Applicant: 3D SYSTEMS INC

Inventor： HELLER TIMMY BOYD ,  HILL RAY MCGAFFEY ,  SAGGAL ABDALLA F

IPC: G03F7/20 ,  B29C64/124 ,  B29C67/00

Abstract: 2075985 9112120 PCTABS00006 A method and apparatus (20) for forming a solid three-dimensional article by exposure of successive layers of a liquid material to a vertically movable energy source (32). The apparatus includes a fixed support plate (28) disposed in a container (24), the liquid being dispensed to successively higher levels in the container above the plate. In one embodiment, the liquid is fed from a reservoir (25) below the plate to an upper portion of the container above the plate by an expandable member (150) disposed in the reservoir. A vertically movable liquid dispenser (34) may be provided above the plate either alone or in combination with the expandable member. The energy source includes a laser (50), a focusing optics system (52) and a scanner head (54) for directing a laser beam to solidify selected portions of successive layers of the liquid medium.

公开(公告)号：EP0515562A4

公开(公告)日：1992-10-06

申请号：EP91905456

申请日：1991-02-15

Applicant: 3D SYSTEMS INC

Inventor： HELLER TIMMY BOYD ,  HILL RAY MCGAFFEY ,  SAGGAL ABDALLA F

IPC: B29C67/00

CPC classification number: B29C64/135 ,  B29K2995/0073

Abstract: A method and apparatus (20) for forming a solid three-dimensional article by exposure of successive layers of a liquid material to a vertically movable energy source (32). The apparatus includes a fixed support plate (28) disposed in a container (24), the liquid being dispensed to successively higher levels in the container above the plate. In one embodiment, the liquid is fed from a reservoir (25) below the plate to an upper portion of the container above the plate by an expandable member (150) disposed in the reservoir. A vertically movable liquid dispenser (34) may be provided above the plate either alone or in combination with the expandable member. The energy source includes a laser (50), a focusing optics system (52) and a scanner head (54) for directing a laser beam to solidify selected portions of successive layers of the liquid medium.