Abstract: A switchover manifold for selectively connecting one of a plurality of compressed gas vessels to a point of use such that the supply of compressed gas remains uninterrupted even as the compressed gas vessels are opened and closed to the point of use for renewal of depleted compressed gas vessels. The switchover manifold has an inlet for each gas vessel all in communication with a utilization outlet, and an externally operated valve which opens only one compressed gas vessel to the utilization outlet at any one time. The manifold may be utilized in conjunction with a gas bottle cart. The gas bottles may be medical side D bottles being used in association with a medical procedure comprising insufflation.

Abstract: A lock secured to a surface for releasably retaining a motorcycle thereon. The lock includes a pair of outer tubular members secured to the surface. The outer members each enclose a height adjustment bar secured to the lower end of the outer member. The height adjustment bars each include a number of laterally extending pins spaced along the length of the bar. A pair of inner tubular members including a keyway secured to a lower end of the inner member are slidably insertable into the outer members. The keyways pass around the pins on the height adjustment bar until the inner members are rotated to engage the keyways with a selected pin on the respective bars. Each inner member also includes a pair of opposed openings adjacent the upper end of the inner member that are aligned when the inner members are placed in the engaged position.