Abstract: An applicator useful for the administration of viscous or gel-type drugs to the human urethral tract. The applicator tip has an end through which the medicinal gel is expelled. Adjacent the end, is a cylindrical portion. Both the end and the cylindrical portions are of such size as to be receivable in the urethral tract. Above the cylindrical portion is a tapered zone which extends to the barrel and has its largest external diameter at the barrel. This tapered portion is only partially receivable in the urethral tract so as to seal the urethral tract during injection of the drugs.

Abstract: A computer keyboard circuit for preventing development of fallacious signals by bouncing or chattering of the keyboard switch contacts, which circuit includes means for delivering a proper output signal to one of several output lines in response to actuation of one of the keyboard switches from a first normal condition to a predetermined actuated condition, and operable to then prevent delivery of an additional output signal to any of the output lines until complete return of the switch to its normal position. To achieve this result, each keyboard switch has two contacts responsive to actuation of the switch to its two different conditions respectively, and the circuitry requires that the switch return the entire distance from one contact to the other in order to condition the apparatus for production of a second output signal.