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公开(公告)号:DE3369453D1
公开(公告)日:1987-02-26
申请号:DE3369453
申请日:1983-10-05
Applicant: IBM
Abstract: A pressure foot assembly is provided which makes use of a pressure ring mounted in a manner which allows it to float laterally around an end mill cutter which is used to delete circuit lands on a subcomposite printed circuit panel. Enough pressure is provided to keep the ring from rotating and allows the ring to impart a concentrated force very close around the cutter, thus holding the deleted circuit line in place during cutting and keeping cutting burrs to a minimum.
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公开(公告)号:DE2820581A1
公开(公告)日:1978-11-30
申请号:DE2820581
申请日:1978-05-11
Applicant: IBM
Inventor: HOUSER DAVID ERLE , MORENUS RICHARD JAY
Abstract: Pre-twisted multiple wires having N twisted sections per full-twist pitch, where N is a predetermined constant integer, are juxtaposed to a roller which carries plural conformal seat means in a circumferential manner. The arcuate spacing between adjacent seat means is correlated with 1/Nth of the full-twist pitch of the particular twisted wires. Associated with the roller is ratchet means which allows the roller to be indexable in increments correlated with a full-twist pitch of the particular multiple twisted wires. As a result, the twisted wires are fed out in full-twist linear increments and, hence, with the same orientation of the wires for each incrementing step. Moreover, by judiciously seating one of the N possible adjacent twist sections of the twisted wires with respect to the seat means, the twisted wires can be fed out selectively with N possible orientations. The preferred embodiments described herein orient a pair of twisted wires which have two twisted sections per full-twist pitch, that is to say, two half-twist sections per full-twist.
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公开(公告)号:DE3584782D1
公开(公告)日:1992-01-16
申请号:DE3584782
申请日:1985-01-17
Applicant: IBM
Inventor: HOUSER DAVID ERLE , MORENUS RICHARD JAY
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公开(公告)号:DE3176104D1
公开(公告)日:1987-05-14
申请号:DE3176104
申请日:1981-10-27
Applicant: IBM
Inventor: HOUSER DAVID ERLE , KOHN HAROLD , WILLIAMS GORDON LEROY
Abstract: The pinner apparatus affixes multiple pins (P) in the holes (H) of a ceramic substrate (5) by simultaneously impacting the pins with a piston assembly (11) which temporarily places the pins in a viscoelastic fluid state. This leaves each pin with an extension that interlocks with the ceramic substrate. … The piston assembly is driven by a pneumatic high pressure system (48) which is adjustable to the number of pins being simultaneously impacted. Release of the piston assembly is delayed until the air pressure becomes stabilized prior to impact. A vacuum system (68) returns the piston to its originating position after impact whereupon the piston assembly is ready for the next impact cycle. A shuttle valve assembly (33) selectively connects the high pressure or the vacuum system to the chamber (21) in which the piston assembly is movable.
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