The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 22, 1986
Filed:
Feb. 23, 1984
David R Dines, Oklahoma City, OK (US);
George Svoboda, Sun City West, AZ (US);
Robert G Workman, Yukon City, OK (US);
AT&T Technologies, Inc., Berkeley Heights, NJ (US);
Abstract
Printed circuit boards 10 having connector terminals 14 and 16 overlaying contact pads 17 and 18 are loaded into fixtures 22 which are conveyor 31 advanced through a pair of solder applying stations 33 and 34 whereat solder is laid and melted at the junctures of the terminals and contact pads. As a fixture approaches a solder applying station, the conveyor is slowed down and a programmed controller 170 is enabled for operation. If a circuit board is sensed by a photodetector 172, a second photodetector is rendered effective to sense elements 176 projecting from a side of the fixture. The sensed elements 176 effectuate the generation of count pulses and output signals to control the movements of solder applying devices 36 to soldering sites where solder feed devices 136 lay discontinuous stripes of solder at the junctures of the contact pads and terminals.