Abstract: The disclosure relates to toilets of the kind which incorporate a waste-receiving tank or chamber in which decomposition of waste material takes place. In a preferred embodiment of the invention, the toilet includes an air-manifold assembly upon which waste material collects and which receives heated air for removing moisture from the waste material by evaporation, and perforate baffle means which define air spaces laterally of the mass of waste material, into which heated air can pass for improving efficiency of moisture evaporation. A fan unit is provided for circulating heated air through the air manifold assembly and is readily removable from externally of the toilet housing for facilitating servicing of the toilet.

Abstract: A compost-type toilet which includes: a solid-liquid separating means which also serves as a means for transferring the solid component of excrement mounted below the opening of a bowl; a means for treating the liquid component of excrement provided beneath the solid-liquid separating means. The liquid component treating means contains various kinds of adsorbent materials capable of adsorbing the liquid component separated by the above mentioned solid-liquid separating means and the inner structure is so constructed as to enhance the air ventilation to vaporize or volatilize the liquid component adsorbed with the adsorbent materials; a means for treating the solid component of excrement is provided in a position adjacent to the solid-liquid separating means in the transferring direction to the solid component separated by the above mentioned solid-liquid separating means.

Abstract: The disclosure relates to toilets of the kind which incorporate a waste-receiving tank or chamber in which decomposition of waste material takes place. According to one aspect of the invention, the toilet includes an air-manifold assembly upon which waste material collects and which receives heated air for removing moisture from the waste material by evaporation. Another aspect of the invention provides perforate baffle means in a waste material receiving chamber of the toilet which define air spaces laterally of the mass of waste material into which heated air can pass for improving efficiency of moisture evaporation. According to a still further aspect of the invention the toilet includes a fan unit which is readily removable from externally of the toilet housing for facilitating servicing of the toilet.

Abstract: Apparatus to receive fecal material directly into a container and maintain it isolated, particularly as to its odors, while automatically homogenizing and withdrawing samples as may be desired and disposing of the remainder. The apparatus, either in fixed or portable form, includes connections to a source of homogenization fluid, a source of cleansing water, and a drain. It also includes means to mix the fecal material vigorously with the homogenization fluid to achieve a substantially homogeneous mixture which can be disposed of with relative ease and which can be sampled into a vacutainer through a vacutainer needle attached liquid-tight to the chamber containing the mixture. For multiple sampling, an automatically operated vacutainer changer brings one vacutainer at a time into position to have a sample of the mixture injected into it. Following such sampling, the apparatus and needle are automatically washed.

Abstract: A toilet deodorizer device having a flow inducing and odor removing assembly arrangeable in the upper portion of a toilet tank for drawing air from the rim portion of a toilet bowl associated with the tank upwardly through a conventional overflow pipe provided in the tank for exhaust at the top of the tank. The flow inducing and odor removing assembly is supported in the upper portion of the toilet tank by a diaphragm constructed from a gas permeable material which permits the air being deodorized to pass through the diaphragm. Resting on the diaphragm is a fan and heater unit including a blower which draws the air through the toilet tank, and a heater disposed at the outlet of the blower for deodorizing the air by the application of extreme heat.

Abstract: Apparatus for venting a sealed holding tank of a portable toilet to equalize the atmosphere and tank pressures before opening and closing the inlet port of the holding tank, said holding tank including a valve assembly for opening and closing the inlet port of the tank, and a vent port means in the tank associated with the valve assembly so that when the valve assembly is moved toward its open position, the vent means will be opened immediately prior to opening of the inlet port and when the valve assembly is moved toward its closed position, the vent port will be closed immediately after closing of the inlet port.