US5088047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automated manufacturing system using thin sections
Assignee: Individual
•
Filing: 1989-10-16
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Granted: 1992-02-11
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Expires: 2009-10-16
Abstract
Abstract A method for automatically manufacturing objects directly from computer aided design, whereby the computer programming electronically sections the designed object into many thin planar sections which are physically reproduced as laminae formed from sheet materials or powders by one of the embodiments of the invention. The thin planar laminae thus formed are bonded to form a sandwich creating the object as designed.
Inventors
- 👤 David K. Bynum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:53
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/4097; G05B19/4099; B; B22; B22F; B22F10/00; B22F10/20; B29; B29C; B29C64/00; B29C64/10; B29C64/141; B29C64/147; B33; B33Y; B33Y10/00; B33Y30/00; B33Y50/00; B33Y50/02; G03; G03F; G03F7/00; G03F7/0037; G03F7/70; G03F7/70416; G03G; G03G15/00; G03G15/22; G03G15/221; G03G15/224; G05B2219/00; G05B2219/30; G05B2219/49; G05B2219/49011; Y; Y02; Y02P; Y02P10/00; Y02P10/25; Y02P90/00; Y02P90/02
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
142 words
A system for manufacturing a three-dimensional object directly from design that comprises: a. means for receiving electronic sectional data corresponding to an electronic representation of the object to be manufactured; b. means for exposing a charged electro-photographic element with an electromagnetic radiation pattern corresponding to said electronic section to form an electrostatic latent image on said electrophotographic element; c. means for applying a plurality of forming powders to said electrostatic latent image contained on said electrophotographic element to form a physical lamina; d. means for transferring said physical lamina to an intermediate support; e. means for causing said physical lamina to become tacky; f. means for transferring and bonding said physical lamina to previously formed laminae, and building up a physical replication of said object in a step-wise fashion whereby the three dimensional object is auto-matically formed from a composite of laminae.
Claim 2
Independent Claim
142 words
A system for manufacturing a three-dimensional object directly from design that comprises: a. means for receiving electronic sectional data corresponding to an electronic representation of the object to be manufactured; b. means for exposing a charged electro-photographic element with an electromagnetic radiation pattern corresponding to said electronic section to form an electrostatic latent image on said electrophotographic element; c. means for applying a plurality of forming powders to said electrostatic latent image contained on said electrophotographic element to form a physical lamina; d. means for transferring said physical lamina to an intermediate support; e. means for causing said physical lamina to become tacky; f. means for transferring and bonding said physical lamina to previously formed laminae, and building up a physical replication of said object in a step-wise fashion whereby the three dimensional object is auto-matically formed from a composite of laminae.
Claim 3
Dependent Claim
22 words
The system as set forth in claim 1, wherein said means for causing said physical lamina to become tacky is applied heat.
Claim 4
Dependent Claim
24 words
The system as set forth in claim 1, wherein said means for causing said physical lamina to become tacky is an applied solvent vapor.
Claim 5
Dependent Claim
22 words
The system as set forth in claim 1, wherein said means for causing said physical lamina to become tacky is induction heating.
Claim 6
Dependent Claim
129 words
The system as set forth in claim 4, further including a surface, a plurality of forming powder areas, supported on said surface, each comprising a layer of meltable forming powder, each of a different thermal melting point, said forming powders comprising a plurality of finely divided metal flakes disbursed within, said forming powders of a relatively higher melting point containing proportionately a higher percentage of said metal flakes than forming powders of a relatively lower melting point, whereby said induction heating means by induction heating of said metal flakes induces more rapid heating in said forming powder comprised of a higher percentage of said metal flakes causing all of said forming powder areas to reach their respective melting points and thus to become tacky, substantially at the same time.
Claim 7
Dependent Claim
23 words
The system as set forth in claim 1, wherein said forming powders that are used to from said physical lamina, are thermoplastic polymers.
Claim 8
Dependent Claim
30 words
The system as set forth in claim 1, wherein a plurality of forming powders are used to form said lamina, each of said forming powders with a different physical property.
Claim 9
Independent Claim
172 words
A system for manufacturing a three-dimensional object directly from design whereby planar slices of the design of said three-dimensional object are sequentially formed and joined to create a replica of the design of said three-dimensional object, said system comprising: a. means for deriving graphic image data output defining successive adjacent cross-sections of the design of said three-dimensional object to be manufactured; b. a sheet of curable polymer; c. means for spraying a pattern of catalyst or hardener upon said sheet of curable polymer initiating a curing process, said pattern corresponding to said graphic image data, whereby said sheet of curable polymer is selectively cured to form a physical lamina corresponding to said graphic image data; d. means for moving said lamina relative to the forming means; e. means for transferring and joining said physical lamina to previously formed laminae as they are formed and building up a physical replication of said design of said three-dimensional object in a step-wise fashion whereby said three-dimensional object is automatically formed from a composite of laminae.
Claim 10
Independent Claim
172 words
A system for manufacturing a three-dimensional object directly from design whereby planar slices of the design of said three-dimensional object are sequentially formed and joined to create a replica of the design of said three-dimensional object, said system comprising: a. means for deriving graphic image data output defining successive adjacent cross-sections of the design of said three-dimensional object to be manufactured; b. a sheet of curable polymer; c. means for spraying a pattern of catalyst or hardener upon said sheet of curable polymer initiating a curing process, said pattern corresponding to said graphic image data, whereby said sheet of curable polymer is selectively cured to form a physical lamina corresponding to said graphic image data; d. means for moving said lamina relative to the forming means; e. means for transferring and joining said physical lamina to previously formed laminae as they are formed and building up a physical replication of said design of said three-dimensional object in a step-wise fashion whereby said three-dimensional object is automatically formed from a composite of laminae.
Claim 11
Dependent Claim
152 words
An automated manufacturing system using thin sections comprising: a. means for deriving graphic image data output, said graphic image data defining successive adjacent cross-sections of a three-dimensional object to be manufactured; b. means for exposing a charged electro-photographic element with an electromagnetic radiation pattern corresponding to said graphic image data, to form an electrostatic latent image on said electrophotographic element; c. means for applying a plurality of forming powders to said electrostatic latent image contained on said electro-photographic element to form a physical lamina; d. means for moving said physical lamina relative to the forming means; e. means for causing said physical lamina to become tacky; f. means for transferring said physical lamina to previously formed laminae; g. means for joining said laminae as they are formed and building up a physical replication of said object in a step-wise fashion whereby said three-dimensional object is automatically formed from a composite of laminae.
Claim 12
Dependent Claim
152 words
An automated manufacturing system using thin sections comprising: a. means for deriving graphic image data output, said graphic image data defining successive adjacent cross-sections of a three-dimensional object to be manufactured; b. means for exposing a charged electro-photographic element with an electromagnetic radiation pattern corresponding to said graphic image data, to form an electrostatic latent image on said electrophotographic element; c. means for applying a plurality of forming powders to said electrostatic latent image contained on said electro-photographic element to form a physical lamina; d. means for moving said physical lamina relative to the forming means; e. means for causing said physical lamina to become tacky; f. means for transferring said physical lamina to previously formed laminae; g. means for joining said laminae as they are formed and building up a physical replication of said object in a step-wise fashion whereby said three-dimensional object is automatically formed from a composite of laminae.
Claim 13
Dependent Claim
23 words
The manufacturing system as set forth in claim 9, wherein said means for causing said physical lamina to become tacky is applied heat.
Claim 14
Dependent Claim
25 words
The manufacturing system as set forth in claim 9, wherein said means for causing said physical lamina to become tacky is an applied solvent vapor.
Claim 15
Dependent Claim
23 words
The manufacturing system as set forth in claim 9, wherein said means for causing said physical lamina to become tacky is induction heating.
Claim 16
Dependent Claim
130 words
The manufacturing system as set forth in claim 12, further including a surface, a plurality of forming powder areas, supported on said surface, each comprising a layer of meltable forming powder, each of a different thermal melting point, said forming powders comprising a plurality of finely divided metal flakes disbursed within, said forming powders of a relatively higher melting point containing proportionately a higher percentage of said metal flakes than forming powders of a relatively lower melting point, whereby said induction heating means by induction heating of said metal flakes induces more rapid heating in said forming powder comprised of a higher percentage of said metal flakes causing all of said forming powder areas to reach their respective melting points and thus to become tacky, substantially at the same time.
Claim 17
Dependent Claim
31 words
The manufacturing system as set forth in claim 9, wherein a plurality of forming powders are used to form said lamina, each of said forming powders with a different physical property.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-10 | 1995-08-12 | 1996-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-10 | 1999-08-12 | 2000-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-10 | 2003-08-12 | 2004-02-11 | $7700.00 | Window Closed / Lapsed |