Metal fusion bonding – With means to remove – compact – or shape applied flux or filler – By fluid blast or suction
Patent
1994-03-08
1995-01-03
Ramsey, Kenneth J.
Metal fusion bonding
With means to remove, compact, or shape applied flux or filler
By fluid blast or suction
137907, B23K 300
Patent
active
053778952
ABSTRACT:
A vacuum actuated solder sucker device having a body chamber in which a vacuum is created by a vacuum source attached thereto and a cover chamber separated from the body chamber by a piston. The piston drives a primary air valve which controls the passage of air through a passageway between the body chamber and a nozzle. In a first position the primary air valve permits the application of the vacuum to the nozzle portion, and in a second position the primary air valve permits the vacuum to be reestablished within the body chamber. The primary air valve is actuated by pressure differential across the piston which is controlled by a user who covers or uncovers a bleed hole. Air pressure equalizes between the body and cover chambers through a bleed tube through the piston. The nominal pressure of the cover chamber portion in one embodiment is controlled by an adjustable bleed valve which can restrict the maximum flow of air through the bleed hole.
REFERENCES:
patent: 3980218 (1976-09-01), Fortune
patent: 4056334 (1977-11-01), Fortune
patent: 5076322 (1991-12-01), Choksi et al.
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