Abstract: A device for forming a planar mounting surface in a chosen reference plane forward of one or more of structural members having a front face at least partially displaced rearwardly of said reference plane has a member (30) of extended length including a pair of legs (36, 38) supported by a perpendicular base portion (32). The legs define a pair of parallel faces spaced a distance corresponding to the width of the structural member (16') upon which the member is to be mounted. The base has an outward-lying flat planar face. The member is aligned on the structural member such that the outward-lying face is oriented and maintained along the reference plane, and the member is nailed or otherwise affixed to the structural member.

Abstract: A shock-resistant container consists of a container body dimensioned to receive a shock-sensitive object. An elastomeric element having a peripheral lip and a central shock-absorbing pedestal is placed within the container upon the inserted object and extends substantially across the inside diameter of the container in a non-wall-contacting configuration. The cover is engageable with the elastomeric element and causes the peripheral lip to engage the side wall and the cover to contact the pedestal, resulting in the elastomeric element being retained in a contents-sealing and shock absorbing configuration between the cover and the enclosed object.

Abstract: A support unit for suspending a pipe or similar article from an overhead structure comprises a frame having a base and a pair of opposed sides. The base has an opening therein to accommodate a vertically-oriented hanger-rod means extending downwardly therethrough for support of the pipe. A resilient element having a lower peripheral shoulder is mounted within the frame and is adapted to support the hanger-rod. A retention clip is provided with a generally circular central portion adapted to embrace the resilient element above said shoulder and a pair of opposed ears extending horizontally outward from said central portion, the frame having a pair of opposed slots dimensioned to accept the ears and retain the clip and the embraced resilient element in position.