Patent US2402324A successfully refreshed from Google Patents.
US4859271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamination apparatus having multiple book platens
Assignee: Advanced Plasma Systems Inc
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Filing: 1987-02-24
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Granted: 1989-08-22
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Expires: 2007-02-24
Abstract
Abstract An apparatus for laminating layers of a book composed of printed circuit layers and adhesive layers, the apparatus comprising a press having an upper and lower bolster plate positioned within a vacuum chamber. A platen assembly including a bookshelf and a chamber platen positioned apart from one another is positioned between the upper and lower bolster plates allowing the book to be placed on the bookshelf. Upon actuation of the press, the bookshelf and the chamber platen engage one another to compress the book positioned therebetween. The chamber platen may be heated or cooled.
Inventors
- 👤 Fazal A. Fazlin
- 👤 Ronald Corces
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:03
CPC Classifications
B; B32; B32B; B32B37/00; B32B37/12; B32B37/06; B32B37/10; B32B37/1018; B32B38/00; B32B38/0008; H; H05; H05K; H05K3/00; H05K3/46; H05K3/4611; B29; B29C; B29C2791/00; B29C2791/004; B29C2791/006; B29L; B29L2031/00; B29L2031/34; B29L2031/3425; H05K2203/00; H05K2203/06; H05K2203/068
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
113 words
An apparatus for laminating the layers of a book composed of printed circuit layers and adhesive layers, comprising in combination: a vacuum chamber including an opening; door means affixed about said opening, said door means comprising means for forming an airtight seal about said opening; a press having an upper and a lower bolster plate, said bolster plates being positioned within said vacuum chamber; a first platen assembly including a bookshelf and a chamber platen; and means for positioning said bookshelf apart from said chamber platen of said platen assembly between said bolster plates until actuation of said press whereupon said bookshelf and said chamber platen engage one another between said bolster plates.
Claim 2
Independent Claim
113 words
An apparatus for laminating the layers of a book composed of printed circuit layers and adhesive layers, comprising in combination: a vacuum chamber including an opening; door means affixed about said opening, said door means comprising means for forming an airtight seal about said opening; a press having an upper and a lower bolster plate, said bolster plates being positioned within said vacuum chamber; a first platen assembly including a bookshelf and a chamber platen; and means for positioning said bookshelf apart from said chamber platen of said platen assembly between said bolster plates until actuation of said press whereupon said bookshelf and said chamber platen engage one another between said bolster plates.
Claim 3
Dependent Claim
24 words
The apparatus as set forth in claim 1, further including a second chamber platen positioned between said platen assembly and said upper bolster plate.
Claim 4
Dependent Claim
16 words
The apparatus as set forth in claim 2, further including means for heating said chamber platens.
Claim 5
Dependent Claim
16 words
The apparatus as set forth in claim 2, further including means for cooling said chamber platens.
Claim 6
Dependent Claim
84 words
The apparatus as set forth in claim 1, wherein said means for positioning said bookshelf and said chamber platen of said first platen assembly comprises a stepped guide shaft including a lower step for supporting said chamber platen and a higher, smaller diameter step for supporting said bookshelf, allowing said lower bolster plate to move said chamber platen upwardly to engage said bookshelf and move said bookshelf and said chamber platen further upwardly to press the book positioned thereon against said second chamber plates.
Claim 7
Dependent Claim
34 words
The apparatus as set forth in claim 5, wherein said first platen assembly is substantially rectangularly shaped and wherein one of said guide shafts is positioned in each corner of said first platen assembly.
Claim 8
Dependent Claim
25 words
The apparatus as set forth in claim 6, further including a second platen assembly positioned between said first platen assembly and said second bolster plate.
References Cited (Backward Citations)
US4234373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-21 | 1993-02-20 | 1993-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-21 | 1997-02-20 | 1997-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-21 | 2001-02-20 | 2001-08-22 | $7700.00 | Window Closed / Lapsed |