Abstract: An improved ball controlled float control unit wherein a slotted raceway housing pivotally accomodates a narrow ball cage within the slot and with the ball cage being in constant contact with said ball while the ball is permitted to be rollingly supported by the edges defining the slot, with the ball being precluded from getting out of or behind the ball cage, thereby eliminating any possibility of the ball locking up the control function of the unit.

Abstract: A novel housing assembly is disclosed. The housing assembly includes a cover section and an end frame which may be of dissimilar materials. The cover section and end frame define abutting openings. The end frame opening is circumscribed by a radial projection and the cover section opening is circumscribed by an axial flange. The radial projection is frictionally retained within the axial flange. A retaining ring is integrally secured to the cover section and holds the end frame to the cover section. Shear elements are provided by the retaining ring and cover section to substantially increase the shear force resistance capacity of the juncture between the cover section and the end frame.

Abstract: A hermetically sealed float switch having a bistable ball cage therein. The ball cage is free to pivot between either of two spring biased, over center positions responsive to the position of a ball which is free to roll from either end of the race through the cage to the other end of the race. An over center spring holds the ball cage in its last operated position. A safety arm prevents the ball cage from changing its attitude in any manner which, if uncontrolled, might permit the ball to escape into an inoperative position which might capture it behind the ball cage. Adjustment is provided for the on and off levels of the switch responsive to tether length.

Abstract: A novel fluid pump housing for a fluid pump with a float switch is disclosed. The housing includes a clamp adapted to removably hold the float cable in a predetermined position and to allow manual release and reinsertion of the float cable at different positions along the length of the cable without the use of tools.