Patent US5715592A successfully refreshed from Google Patents.
US5715592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parts disassembling apparatus
Assignee: Fujitsu Ltd
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Filing: 1995-11-06
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Granted: 1998-02-10
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Expires: 2015-11-06
Abstract
Abstract A printed wiring board, on which an electronic parts are mounted and fixed by way soldering, is introduced into a heating furnace for heating at a temperature higher than or equal to a melting temperature of a solder. After sufficiently melting of solder, an impact force and/or a shearing force are applied. By this under a reduced connecting force, the electronic parts are removed from a printed wiring board. On the other hand, since the parts can be easily removed from the printed wiring board. Also, the parts and the printed circuit are separated for collecting useful substance and can improve resistance to enhance recycling efficiency.
Inventors
- 👤 Eiichi Mori
- 👤 Sadahiko Yokoyama
- 👤 Masatoshi Iji
- 👤 Yuji Ikuta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:17
CPC Classifications
H; H05; H05K; H05K13/00; H05K13/04; H05K13/0486; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49815; Y10T29/49819; Y10T29/49822; Y10T29/53; Y10T29/53274
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
173 words
A parts disassembling apparatus comprising: a heating furnace for heating a printed wiring board with parts mounted thereon by solder, to a temperature equal to or higher than a melting temperature of said solder; a plurality of printed wiring board carriers for holding outer circumferential edge portions of said printed wiring board; feeding means for connecting a plurality of said printed wiring board carriers and sequentially introducing said printed wiring board carriers into said heating furnace; a parts disassembling member for exerting an impact or vibration force repeatedly on the printed wiring board; a primary fixing portion opening and closing mechanism for making said printed wiring board carriers grip an outer circumference of said printed wiring board before feeding said printed wiring board carriers into said heating furnace; a secondary fixing portion opening and closing mechanism for releasing the gripping of said printed wiring board by said printed wiring board carriers fed out of said heating furnace; and wherein said parts disassembling member is provided on an external surface of a rotary body.
Claim 2
Dependent Claim
173 words
A parts disassembling apparatus comprising: a heating furnace for heating a printed wiring board with parts mounted thereon by solder, to a temperature equal to or higher than a melting temperature of said solder; a plurality of printed wiring board carriers for holding outer circumferential edge portions of said printed wiring board; feeding means for connecting a plurality of said printed wiring board carriers and sequentially introducing said printed wiring board carriers into said heating furnace; a parts disassembling member for exerting an impact or vibration force repeatedly on the printed wiring board; a primary fixing portion opening and closing mechanism for making said printed wiring board carriers grip an outer circumference of said printed wiring board before feeding said printed wiring board carriers into said heating furnace; a secondary fixing portion opening and closing mechanism for releasing the gripping of said printed wiring board by said printed wiring board carriers fed out of said heating furnace; and wherein said parts disassembling member is provided on an external surface of a rotary body.
Claim 3
Dependent Claim
158 words
A parts disassembling apparatus comprising: a heating furnace for heating a printed wiring board with parts mounted thereon by solder, to a temperature equal to or higher than a melting temperature of said solder; a plurality of printed wiring board carriers for holding outer circumferential edge portions of said printed wiring board; feeding means for connecting a plurality of said printed wiring board carriers and sequentially introducing said printed wiring board carriers into said heating furnace; a parts disassembling member for exerting an impact or vibration force repeatedly on the printed wiring board; a primary fixing portion opening and closing mechanism for making said printed wiring board carriers grip an outer circumference of said printed wiring board before feeding said printed wiring board carriers into said heating furnace; and a secondary fixing portion opening and closing mechanism for releasing the gripping of said printed wiring board by said printed wiring board carriers fed out of said heating furnace.
Claim 4
Dependent Claim
158 words
A parts disassembling apparatus comprising: a heating furnace for heating a printed wiring board with parts mounted thereon by solder, to a temperature equal to or higher than a melting temperature of said solder; a plurality of printed wiring board carriers for holding outer circumferential edge portions of said printed wiring board; feeding means for connecting a plurality of said printed wiring board carriers and sequentially introducing said printed wiring board carriers into said heating furnace; a parts disassembling member for exerting an impact or vibration force repeatedly on the printed wiring board; a primary fixing portion opening and closing mechanism for making said printed wiring board carriers grip an outer circumference of said printed wiring board before feeding said printed wiring board carriers into said heating furnace; and a secondary fixing portion opening and closing mechanism for releasing the gripping of said printed wiring board by said printed wiring board carriers fed out of said heating furnace.
Claim 5
Dependent Claim
169 words
A parts disassembling apparatus comprising: a heating furnace for heating a printed wiring board with parts mounted thereon by solder, to a temperature equal to or higher than a melting temperature of said solder; a plurality of printed wiring board carriers for holding outer circumferential edge portions of said printed wiring board; feeding means for connecting a plurality of said printed wiring board carriers and sequentially introducing said printed wiring board carriers into said heating furnace; a parts disassembling member for exerting a shearing force between said parts and said printed wiring board by scraping a parts mounting surface on said printed wiring board; a primary fixing portion opening and closing mechanism for making said printed wiring board carriers grip an outer circumference of said printed wiring board before feeding said printed wiring board carriers into said heating furnace; and a secondary fixing portion opening and closing mechanism for releasing the gripping of said printed wiring board by said printed wiring board carriers fed out of said heating furnace.
Claim 6
Dependent Claim
169 words
A parts disassembling apparatus comprising: a heating furnace for heating a printed wiring board with parts mounted thereon by solder, to a temperature equal to or higher than a melting temperature of said solder; a plurality of printed wiring board carriers for holding outer circumferential edge portions of said printed wiring board; feeding means for connecting a plurality of said printed wiring board carriers and sequentially introducing said printed wiring board carriers into said heating furnace; a parts disassembling member for exerting a shearing force between said parts and said printed wiring board by scraping a parts mounting surface on said printed wiring board; a primary fixing portion opening and closing mechanism for making said printed wiring board carriers grip an outer circumference of said printed wiring board before feeding said printed wiring board carriers into said heating furnace; and a secondary fixing portion opening and closing mechanism for releasing the gripping of said printed wiring board by said printed wiring board carriers fed out of said heating furnace.
Claim 7
Dependent Claim
25 words
A parts disassembling apparatus as set forth in claim 3, wherein said parts disassembling member is provided on an external surface of a rotary body.
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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) | 2001-02-09 | 2001-08-11 | 2002-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-02-09 | 2005-08-11 | 2006-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-02-09 | 2009-08-11 | 2010-02-10 | $7700.00 | Window Closed / Lapsed |