Abstract: Inflation apparatus for hollow flexible wall objects, such as playballs, in which the source of inflation gas or air is normally inoperative until the object to be inflated is moved into engagement with a gas injection needle for energizing the source of inflation gas, and the source of inflation gas is returned to its normally inoperative state upon the object reaching its desired inflated size. Upon the removal of the inflated object the apparatus is returned to a condition where a subsequent object to be inflated can be supplied with the inflation gas.

Abstract: A spring support base for a child's riding toy having a substantially stress resistant detachable connection between the child's riding seat and a spring, and a wide stance assembly for the spring in which the assembly permits legs to be attached by a single element to a base plate formed with leg receiving sockets having elements in positions to provide a snap fit grip on the legs.

Abstract: A life preserver or other body-buoying equipment is provided with straps extending from its opposite sides, and the two pieces of a buckle are fastened to the respective ends of the straps. The two pieces of the buckle can be engaged with one another and disengaged only when the pieces are swiveled toward one another at an angle of less than 90.degree.. The invention includes the two-piece buckle itself as well as the combination of the two pieces of the buckle on the ends of the belt means extending from the sides of such body-buoying equipment.