Patent ID: 7983057
Filing Date: 2011-07-19
Classification: H05K

Abstract:
1. A mounting assembly for retention and extraction of a printed circuit board to a support surface, the printed circuit board having at least two holes for facilitating mounting, comprising: a plurality of standoff elements extending from a support surface toward an interior space of a computer enclosure, each of the standoff elements comprising an elongated body, a neck extending from the body with a smaller diameter than the body, and a head extending from the neck; and a plurality of retention assemblies mounted to a surface of the printed circuit board, each of the retention assemblies comprising a spring-force retention member with a passageway with an at rest diameter smaller than at least a portion of the head, wherein the spring-force retention member is expandable to allow the head to pass through the passageway during mounting of the printed circuit board onto the plurality of standoff elements; wherein the spring-force retention member comprises a single coil of a ring spring with an inner diameter smaller than about a diameter of the head of the standoff element as measured proximate to the neck; wherein the head of each of the standoff elements comprises a shoulder adjacent to the neck and a tip distal to the shoulder, the shoulder having a diameter greater than a diameter of the tip to define an outward sloping contact surface on the head; and wherein the neck of each of the standoff elements has a height greater than about a combined thickness of the printed circuit board and the spring-force retention member and the neck of each of the standoff elements has a circular cross section when viewed along a longitudinal axis of the standoff elements having a diameter greater than about the at rest diameter of the passageway through the spring-force retention member.