US5415820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making photo-solidified object having unsolidified liquid ejecting ports
Assignee: CMET Inc
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Filing: 1993-09-27
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Granted: 1995-05-16
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Expires: 2013-09-27
Abstract
Abstract A superficial model with an inner reinforcing structure having communication ports formed for communication among cells defined by ribs constructing a honeycomb structure. For this purpose, a process of temporarily stopping light exposure is added in a light exposure process for modeling ribs. Alternatively, a process of offsetting phases of ribs is added in the light exposure process for modeling ribs.
Inventors
- 👤 Kei Furuta
- 👤 Jie Wei
- 👤 Seiji Hayano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:42
CPC Classifications
B; B29; B29C; B29C64/00; B29C64/10; B29C64/106; B29C64/30; B29C64/386; B29C64/393
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
181 words
A method of fabricating a photo-solidified object including an outer surface and internal ribs supporting the outer surface, the internal ribs comprising a plurality of layers of internal rib portions, the outer surface and the internal ribs being integrally formed of a photo-solidifying resin, the method comprising the steps of: forming one section of the outer surface by activating a light source to expose the resin at an area corresponding a contour of the object; forming one layer of the internal rib portions by activating the light source to expose the resin at an internal area of the contour of the object; and repeating the steps of forming one section of the outer surface and forming one layer of the internal rib portions, wherein a first layer of internal rib portions is offset from a second layer of internal rib portions in one of an X direction and a Y direction and the first layer of internal rib portions is offset from a third layer of internal rib portions in an opposite one of the X direction and the Y direction.
Claim 2
Independent Claim
181 words
A method of fabricating a photo-solidified object including an outer surface and internal ribs supporting the outer surface, the internal ribs comprising a plurality of layers of internal rib portions, the outer surface and the internal ribs being integrally formed of a photo-solidifying resin, the method comprising the steps of: forming one section of the outer surface by activating a light source to expose the resin at an area corresponding a contour of the object; forming one layer of the internal rib portions by activating the light source to expose the resin at an internal area of the contour of the object; and repeating the steps of forming one section of the outer surface and forming one layer of the internal rib portions, wherein a first layer of internal rib portions is offset from a second layer of internal rib portions in one of an X direction and a Y direction and the first layer of internal rib portions is offset from a third layer of internal rib portions in an opposite one of the X direction and the Y direction.
Claim 3
Independent Claim
156 words
A method of fabricating a photo-solidified object including an outer surface and internal ribs supporting the outer surface, the internal ribs comprising a plurality of layers of internal rib portions, the outer surface and the internal ribs being integrally formed of a photo-solidifying resin, the method comprising the steps of: forming one section of the outer surface by activating a light source to expose the resin at an area corresponding to a contour of the object; forming one layer of the internal rib portions by activating a light source to expose the resin at an internal area of the contour of the object; and repeating the steps of forming one section of the outer surface and forming one layer of the internal rib portions, wherein the light source is deactivated along the X axis for at least a first layer and the light source is deactivated along the Y axis for at least a second layer.
Claim 4
Independent Claim
156 words
A method of fabricating a photo-solidified object including an outer surface and internal ribs supporting the outer surface, the internal ribs comprising a plurality of layers of internal rib portions, the outer surface and the internal ribs being integrally formed of a photo-solidifying resin, the method comprising the steps of: forming one section of the outer surface by activating a light source to expose the resin at an area corresponding to a contour of the object; forming one layer of the internal rib portions by activating a light source to expose the resin at an internal area of the contour of the object; and repeating the steps of forming one section of the outer surface and forming one layer of the internal rib portions, wherein the light source is deactivated along the X axis for at least a first layer and the light source is deactivated along the Y axis for at least a second layer.
Claim 5
Dependent Claim
25 words
The method of claim 2, wherein the first layer and the second layer are provided at an area of the object having a maximum width.
References Cited (Backward Citations)
EP0250121A2
Cited
US4752498A
Cited
EP0322257A2
Cited
US5182055A
Cited
JPH04118222A
Cited
EP0484183A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-05-15 | 1998-11-14 | 1999-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-15 | 2002-11-14 | 2003-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-15 | 2006-11-14 | 2007-05-16 | $7700.00 | Window Closed / Lapsed |