Plastic and nonmetallic article shaping or treating: processes – Stereolithographic shaping from liquid precursor
Patent
1996-12-17
1999-04-06
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Stereolithographic shaping from liquid precursor
73293, 73305, 73319, 733225, 250432R, 2504921, 250577, 264 401, 264308, 264408, 340619, 340623, 340624, 36446827, 425135, 4251744, B29C 3508, B29C 4102, B29C 4152
Patent
active
058913823
ABSTRACT:
Improved apparatus and methods for forming a layer of material over a surface of a previously-formed cross-section of a three-dimensional object in anticipation of forming a next cross-section of the object out of the layer. A volume of material, including at least some excess material, is placed over the surface, and the excess material is swept off by placing the excess material in the predetermined path of a sweeping member, the path being substantially in a plane spaced from a working surface of material. The member may be directed to sweep the excess material away through a successive number of sweeps, which may vary for each cross-section, at least a velocity which may vary for each sweep. Additionally, the clearance between the member and the surface of the previous cross-section may vary for each sweep. A "winged" member is also provided, comprising two legs extending from a base, and a "Trident" embodiment is also provided, comprising three legs extending from a base.
REFERENCES:
patent: 2621808 (1952-12-01), Blakeney
patent: 2682887 (1954-07-01), Getz
patent: 3597080 (1971-08-01), Gush et al.
patent: 3782327 (1974-01-01), Wessells et al.
patent: 3957015 (1976-05-01), Harris
patent: 4179071 (1979-12-01), Capelle
patent: 4247508 (1981-01-01), Housholder
patent: 4320394 (1982-03-01), John, Jr.
patent: 4354180 (1982-10-01), Harding
patent: 4508970 (1985-04-01), Ackerman
patent: 4575330 (1986-03-01), Hull
patent: 4658149 (1987-04-01), Miranda et al.
patent: 4755127 (1988-07-01), Becker
patent: 4942060 (1990-07-01), Grossa
patent: 4942066 (1990-07-01), Fan et al.
Almquist Thomas A.
Cohen Adam L.
Hull Charles W.
Jacobs Paul F.
Lewis Charles W.
3D System, Inc.
Collins Forrest L.
Smalley Dennis R.
Tentoni Leo B.
LandOfFree
Recoating of stereolithographic layers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Recoating of stereolithographic layers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recoating of stereolithographic layers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1368408