Abstract: A burial casket so configured of a non-biodegradable, corrosion-proof material to obtain the required mechanical strength with a minimum of material. The self-sealing gasket made of resilient material helps hold the cover on the casket and compresses at right angles to the direction the cover is put on the casket. An air valve allows the cover to be put on or taken off easily, the casket tested for air tightness, oxygen to be purged from the casket, and an inert gas to be pressurized to slow decomposition of the cadaver in the casket. A relief valve-filter assembly relieves and deodorizes any excessive pressure caused by decompositions gases.

Abstract: A light weight trainer to help infants to learn to walk safely, efficiently and effectively. A broad base provides a tip resistant trainer that can be easily and quickly adjusted to a comfortable height for different infants. This trainer can be locked into a folded position of minimum volume for packing, transporting and storage without tools. A scaled up model would provide more security and ease of use to adult users.

Abstract: A mixer for mortar, plaster, fireproofing material and the like utilizing a plurality of mixing paddles supported from a horizontal shaft in a pivotal mixing drum. Six paddles are mounted on the shaft and are oriented in a unique arrangement by which they rotate in a triple eight mixing action constantly dividing and recombining the mixture again and again thereby resulting in a smooth, uniform mix. The paddles are provided with blades arranged so that material in the end of the drum is pushed half way to the middle of the drum by the first blade. The second blade pushes material from the center of the drum halfway toward the end. The next following blade then cuts the resulting pile into two approximately equal parts and pushes one part that has been cut from the pile toward the opposite end of the drum. This action occurs simultaneously at both ends of the drum every time the paddle shaft revolves 360.degree. and up to 50 cycles per minute depending, of course, upon the rotational speed of the paddle shaft.