Logic card frame
AssigneeBurroughs Corporation
InventorsMichael A. Saunders, Robert W. Irwin
Life of this patent
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Abstract
A logic card frame for housing removable printed circuit boards comprises a pair of identical one piece molded half frames that are snapped together, stackable, and slideable from an inserted to a withdrawn position within an associated rack or cabinet. The assembled half frames include integrally molded circuit board guide tracks, each with a groove, a flexure, and a raised portion to guide and prevent vibration of a printed electrical circuit board inserted into a guide track. The base on which the logic card frame is slideably mounted has a ratcheted latch and leaf spring combination for retaining the inserted logic card frame.
Claims4
A logic card frame for housing removable printed circuit boards comprising:
- a pair of identical one piece molded half frames integrally molded with a multiplicity of circuit board tracks for guiding an inserted printed circuit board;
- a flexure, integrally molded with the printed circuit board track, that exerts opposing, sideways pressure on a side portion of the inserted printed circuit board in the circuit board track;
- means for restricting vertical vibration of the inserted printed circuit board;
- means for locking together the pair of identical one piece molded half frames to form the logic card frame;
- a mounting base;
- means on the mounting base for sliding the logic card frame from an inserted to a withdrawn position for exposing and servicing the housed printed circuit boards;
- means for mounting the logic card frame in a slidable fashion on the sliding means;
- means for retaining the logic card frame in the inserted position;
- and
- means, integral with each identical one piece molded half frame, for stacking multiple logic card frames.
A logic card frame for housing removable printed circuit boards comprising:
- a pair of identical, one-piece molded half frames integrally molded with circuit board tracks for guiding inserted printed circuit boards;
- means, integral with each half frame, for locking together the pair of half frames to form the logiccard frame;
- means, integral with each half frame, for restricting vertical vibration of the inserted printed circuit boards;
- and
- means, integral with each circuit board track, for exerting opposing, sideways pressure on a side portion of the inserted printed circuit board to restrict the printed circuit board's horizontal vibration.
Dependencies are inferred from the claim text.