Abstract: An improved electromechanical Blade Clutch Actuator (BCA) that employs an electric gear motor system to provide more economical, convenient and reliable user control with an electric switch to engage/disengage the cutting blades. The user control may be a switch remotely mounted anywhere on the mower for greater design freedom due to the removal of the manual interface. The BCA also incorporates a novel slip clutch for overload protection.

Abstract: An improved electromechanical Blade Clutch Actuator (BCA) that employs an electric gear motor system to provide more economical, convenient and reliable user control with an electric switch to engage/disengage the cutting blades. The user control may be a switch remotely mounted anywhere on the mower for greater design freedom due to the removal of the manual interface. The BCA also incorporates a novel slip clutch for overload protection.

Abstract: A clutch for a mower has an electric motor, a drive mechanism connected with the motor and an output mechanism connected with the drive mechanism. The drive mechanism has a cam driven by the motor and a cam follower reciprocating along with the cam. Reciprocation of the cam follower switches the output mechanism between a transmission state and a non-transmission state.

Abstract: A clutch for a mower has an electric motor, a drive mechanism connected with the motor and an output mechanism connected with the drive mechanism. The drive mechanism has a cam driven by the motor and a cam follower reciprocating along with the cam. Reciprocation of the cam follower switches the output mechanism between a transmission state and a non-transmission state.

Abstract: A food waste disposer includes a chamber housing, a grinder mechanism, an electric motor and a transmission device. The chamber housing defines a grinding chamber having an inlet and an outlet. The grinder mechanism is disposed within the grinding chamber and has a driven shaft and a rotating member coupled to the driven shaft. The electric motor is disposed at one side of the chamber housing and has an output shaft. The transmission device is coupled between the output shaft of the electric motor and the driven shaft of the grinder mechanism.

Abstract: A centrifugal pump includes a pump unit and a drive unit. The pump unit includes a volute and an impeller disposed in the volute. The drive unit includes a stator and a rotor having a shaft. The volute includes an inlet, an outlet and a chamber in communication with the inlet and outlet. The shaft of the rotor extends into the chamber of the volute and the impeller is attached to and driven by the shaft. The volute further includes a transition part connected between the outlet and the chamber and communicating the outlet with the chamber. The axis of the transition part is angled to the axis of the outlet. The transition part is configured to improve the effect of fluid turbulence to thereby reduce noise, especially in the air-water stage.

Abstract: A centrifugal pump includes a pump unit and a drive unit. The pump unit includes a volute and an impeller disposed in the volute. The drive unit includes a stator and a rotor having a shaft. The volute includes an inlet, an outlet and a chamber in communication with the inlet and outlet. The shaft of the rotor extends into the chamber of the volute and the impeller is attached to and driven by the shaft. The volute further includes a transition part connected between the outlet and the chamber and communicating the outlet with the chamber. The axis of the transition part is angled to the axis of the outlet. The transition part is configured to improve the effect of fluid turbulence to thereby reduce noise, especially in the air-water stage.