Abstract: A toilet bowl stabilizer base of a plurality of interlocking plates nest together for compression between the bottom of the new toilet bowl and the supporting floor. The plates are congruent and of the same dimensions and have opposing planar surfaces with a circular opening for receipt of the mounting flange and passage of waste. Each base plate has a pair of alignment pegs and cooperating recesses on the opposing side of the plate to interlock the plates together.

Abstract: A leak repair device composed of an elastomeric seal having an outer toroidal portion radially of a central axis and a continuous membrane portion integral with and peripherally enclosed by the toroidal portion. The elastomeric seal is held by a semi-rigid flexible cover member which has a plurality of parallel slots extending across the surface of the cover member. As the cover member is compressed radially against a rigid pipe, the slots permit the cover member to bend to the contour of the pipe. The toroidal portion of the elastomeric seal is compressed against the pipe to seal the leak and the membrane portion encapsulates the leak region to further seal the escape of fluid through the leak repair device.

Abstract: A pin mounts a plurality of expandable and contractable bushings that upon expansion engage the bore of workpieces to hold the latter together. A ball lock expands behind the workpieces to present a positive lock against axial pullout of the fastener. The bushings are alternate male and female, split ring bushings that have complementary contiguous surfaces that act as wedges. Upon axial compressive loading the female bushings expand and the male bushings contract. The ball lock includes a pair of diametrically opposed balls radially displaceable in the pin. A slide has an annular recess for receiving the balls in a withdrawn position within the pin. A spring normally biases a land of the slide into a position radially inside the balls to rigidly hold the balls in their extended position.