Abstract: A missile launch system is described in which a missile launch tube has the launch end thereof protected by a hollow launch tube cover. The launch tube cover is divided into a plurality of segments which are frangible and are dispersed during launch of a missile 62. The surfaces of the individual segments are coated with water repellant material such as tetrafluoroethylene or silicone to prevent ice buildup. Moreover the outer surface of the head of the launch tube cover can be coated with a layer of metallic material to prevent electro magnetic interference or radio frequency interference. The launch tube cover is constructed of a light weight, water proof material such as an expanded closed cell foam including polyurethane foam.

Abstract: An ergonomically designed computer workstation includes a computer stand, stool, footrest assembly, and keyboard and forearm support assembly being adjustable so that the workstation can accommodate users in various sitting and standing positions. The stand has a base member, an upright member supported by the base member for vertical movement, and a planar platform mounted by the upright member in a horizontal plane to provide a support surface for a variety of computer equipment. The stool includes a stationary base and a seat with a back for supporting a user thereon. The stool can be adjusted to vertically move the seat away from or toward the base to position the seat at a desired elevation. The footrest assembly is mounted to the base member of the stand and can be adjusted to and positioned at a desired elevation corresponding to the desired elevation selected for the stand platform and stool in order to permit the user to assume an ergonomically proper position at the stand and on the stool.

Abstract: An ergonomically designed computer workstation includes a computer stand, stool, footrest assembly, and keyboard and forearm support assembly being adjustable so that the workstation can accommodate users in various sitting and standing positions. The stand has a base member, an upright member supported by the base member for vertical movement, and a planar platform mounted by the upright member in a horizontal plane to provide a support surface for a variety of computer equipment. The stool includes a stationary base and a seat with a back for supporting a user thereon. The stool can be adjusted to vertically move the seat away from or toward the base to position the seat at a desired elevation. The footrest assembly is mounted to the base member of the stand and can be adjusted to and positioned at a desired elevation corresponding to the desired elevation selected for the stand platform and stool in order to permit the user to assume an ergonomically proper position at the stand and on the stool.