B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
B08B 3/10 (2006.01) C23G 5/04 (2006.01) H05K 3/26 (2006.01)
Patent
CA 2065326
2065326 9103325 PCTABS00003 Apparatus for cleaning printed wiring boards and/or printed circuit boards (170) after soldering thereof for removal of rosin soldering fluxes using terpene compounds. The apparatus includes three separate components, a first housing (26) containing the terpene washing apparatus (12), a second housing (136) containing a water rinsing apparatus (16), and intermediate conveying means (14) for transporting the devices from the first housing (26) to the second housing (136). This intermediate conveying means (14) should be disposed at an angle such that the end facing the second housing (136) is disposed lower than the first end. Exhaust fans (48) are provided for the first housing (26) to prevent escape of terpene odors or vapors therefrom, while similar exhaust fans (164) in the second housing (136) prevent the escape of water vapor. Scrubbers (50) are provided in the exhaust ducts (44, 46) from the first housing to prevent terpene compounds from escaping to the atmosphere. A flame detector (90) prevents the introduction of boards (170) having flames thereon or being overheated. A series of temperature controls (96) prevent the terpene vapor temperature from rising a predetermined value to prevent the vapors from igniting.
Attalla Gary J.
Clark Gerald F.
Attalla Gary J.
Clark Gerald F.
Swabey Ogilvy Renault
Vitronics Corporation
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