Material or article handling – Plural – static structures for supporting discrete loads and... – Load-underlying members
Patent
1989-04-06
1992-04-14
Werner, Frank E.
Material or article handling
Plural, static structures for supporting discrete loads and...
Load-underlying members
414222, 414331, 414286, 414661, 324158F, 1983451, B65G 104
Patent
active
051042770
ABSTRACT:
The automated changer for printed circuit board test fixtures includes apparatus for transporting printed circuit board test fixtures between a printed circuit board test fixture storage apparatus and a printed circuit board test facility. The automated changer also includes apparatus that automatically unlocks and retrieves a test fixture from the printed circuit board test facility and automatically loads another test fixture in its place. In operation, the automated changer retrieves a selected printed circuit board test fixture from a storage apparatus and transports the retrieved printed circuit board test fixture to the printed circuit board test facility. The automated changer orients one of its printed circuit board test fixture retrieval arms in juxtaposed position with a printed circuit board test fixture loading aperture in the test facility. The automated changer unlocks and then retrieves the printed circuit board test fixture that is presently loaded in the test facility via the aperture. The automated changer then positions the printed circuit board test fixture that was retrieved from the storage apparatus opposite the aperture in the test facility. The printed circuit board test fixture retrieval arm automatically loads the retrieved printed circuit board test fixture into the test facility via the aperture in the test facility and locks the test fixture in place. The automated changer then replaces the printed circuit board test fixture that was initially retrieved from the test facility in a designated location in the storage apparatus. Thus, the automated changer efficiently and accurately loads and unloads printed circuit board test fixtures both in an associated test facility and in an associated storage apparatus.
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patent: 4818933 (1989-04-01), Kerschner et al.
patent: 4824311 (1989-04-01), Mims
patent: 4844680 (1989-07-01), Kawata et al.
patent: 4871290 (1989-10-01), Kaczynski et al.
Hirata Data Sheet And Accompanying Materials.
Hewlett--Packard Company
Werner Frank E.
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