Abstract: A swivel coupling comprises a male member having an annular groove formed on an outer surface and a female member overlapping the male member to form a central flow passageway. An annular groove is defined at an end of the female member and the annular groove of the female member is positioned adjacent the annular groove of the male member. A locking member is movably mounted around the male and female members and an annular groove on the locking member is positioned adjacent the annular grooves of the male and female members. The grooves together define an annular ball race. A plurality of ball bearings are trapped in the ball race and the male member is rotatable relative to the female member about the ball bearings.

Abstract: A winch for use in a folding camper for raising and lowering the camper, includes a reversible electric motor mounted on a chassis with a threaded rod being rotationally coupled through the electric motor. A winch spool is also rotatably coupled with the electric motor and is adapted to receive a cable used in raising and lowering the camper. A trigger mechanism is threadably engaged with a threaded rod and adapted for linear movement along the threaded rod upon rotation of the threaded rod and at least one limit switch is positioned adjacent to the threaded rod which is electrically coupled to the electric motor such that upon activation of the limit switch by the trigger mechanism, the electric motor is deactivated to stop rotation of the threaded rod and the winch spool. In the preferred embodiment, there are two limits switches to deactivate the motor in either of its reversible directions.

Abstract: A lid assembly for a paint reservoir includes a lid, a first rigid suction tube, and a second rigid suction tube. The lid includes a cover member and a flange that extends downwardly from the periphery of the cover member. A suction opening, vent hole opening, and bypass opening extend axially through the cover member. A first tubular member is positioned in the suction opening and a second tubular member is positioned in the bypass opening. The first suction tube extends through the first tubular member. The second suction tube is coupled to and extends downwardly from the first suction tube. The second suction tube is configured to extend near the bottom surface of the paint reservoir.

Abstract: Motor speed, motor amps, float position and elapsed run time are monitored to determine whether a sump pump is in a normal condition, a jammed condition, an inadequate pumping rate condition, a dry running condition or a stuck float condition. A processor is configured to increase the motor speed in response to an inadequate pumping rate condition, and to rapidly energize the motor clockwise and counterclockwise in response to a jammed condition or a stuck float condition. The processor provides signals to a display for displaying information about the condition that the pump is in. The pump is set up to receive power from either an AC power source or a battery power source. Availability of the AC power source is monitored and the pump is switched to operate from the battery power source when AC power is unavailable.

Abstract: A paint sprayer for sprayer a fluid includes a pump housing, an electrical housing having a motor and a switch, a handle coupled to the pump housing, a paint cup coupled to the handle, and a mechanical actuator coupled to the pump housing for operating the motor. The actuator has a first portion positioned in the vicinity of the exterior of the pump housing and a second portion that extends into the pump housing. The second portion is configured to engage the switch in the electrical housing to operate the motor. The handle is an elongated member having a top end and a bottom end, with a generally rectangular cross-section at the top end and a generally circular cross-section at the bottom end.