Abstract: A retaining cap for the shaft of a differential gear assembly retains the pinion gear without support from a case structure. The retaining cap is self-supported, and may be retained on a single shaft by a weld, a force fit arrangement, or by a rivet. The retaining cap is capable of retaining the pinion gear under high loads, and simplifies the differential assembly by allowing construction without the case structure.

Abstract: A method and system is disclosed for adding chlorine to a water supply system to kill bacteria, and in particular, Legionella bacteria. A corrosion inhibitor additive is added with the chlorine, to ensure that corrosion or other damage to the pipes does not occur. A method is disclosed for initially setting up proper levels of chlorine and corrosion inhibitor, and maintaining those levels. Systems for adding the materials to the hot water supply system are disclosed to ensure that they are adequately and thoroughly mixed into the water.

Abstract: In combination, a guide post having a longitudinal slot and a ball bearing cage adjustably receiving the post and adapted for relative longitudinal and rotary movements, there being an internal annular recess in said cage inwardly of one end. A truncated roller bearing with opposed hemispherical surfaces and opposed flat sides is guidably positioned within the slot with the roller bearing maintaining a rolling point contact with the bottom wall of the slot and with the roller flat sides loosely and slidably registerable with the side walls of the slot. One of the hemispherical surfaces of the bearing being positioned and retained within an internal annular recess within the ball cage. A fastener within the profile of the guide post adjacent one end of the longitudinal slot traps the roller within the longitudinal slot and ball cage.

Abstract: This is a new and distinct cherry tree, given the varietal name of "Brooks-60 cultivar", which will be marketed as "MXM-60." It is characterized by its exceptional resistance to Phytophthora and its precocity.