Abstract: This method relates to a non-draining type human waste disposal by pulse combustion drying. In the method, a pulsating combustion gas is discharged downward into a vertically cylindrical dryer from a pulse combustor disposed at the top of the dryer, and making contact the pulsating combustion gas with residue-removed human waste, digester chamber sludges or their mixtures charged therein, turning the charged matters to dried powder and steam under the dryer conditions of 120.degree.-150.degree. C., withdrawing the dried powder from the bottom of the dryer and the combustion gas containing steam from a lower side of the dryer, dust-removing the combustion gas containing steam maintained at 120.degree.-150.degree. C., deodorizing the dust-removed combustion gas, and exhausting the deodorized gas into the air. As an alternative method, the dried powder and the combustion gas containing steam are withdrawn from the bottom of the dryer, the withdrawn material maintained at 120.degree.-150.degree. C.

Abstract: A videotape tape guide for guiding videotape in a videocassette. The videotape tape guide is comprised of an elongated cylinder having first and second open ends. A groove extends longitudinally from the first open end of the elongated cylinder to the second open end of the cylinder. The longitudinally extending groove allows the material required to form the tape guide to be reduced, thereby reducing the cost of the tape guide. Further, the groove allows firm seating in the videocassette to prevent rotation of the tape guide when positioned therein.