A transfer pump includes a drive module having electronic components and a fluid module not including electronic components. The drive module provides motive power to a pump of the fluid module to power pumping by the fluid module. The drive module is movably mounted to the fluid module at dynamic and static interfaces to power reciprocation of a pumping component of the fluid module by the dynamic interface and such the drive module supports the fluid module at the static interface.

A motor control system to drive an alternating-current (AC) motor, including a motor drive with a power circuit and a motor drive controller powered by the power circuit and configured to cause the power circuit to generate a motor voltage; a motor drive contactor having first contacts electrically connected between the power circuit and the AC motor; a bypass contactor having second contacts electrically connected between a line voltage source and the AC motor; and a bypass controller communicatively coupled with the motor drive contactor and the bypass contractor; wherein the motor drive controller is structured to generate a speed reference and to command the bypass controller to connect the AC motor to the line voltage source upon the motor drive controller determining that the speed reference is substantially equal to a line frequency of the line voltage source.

A transfer pump includes a drive module having electronic components and a fluid module not including electronic components. The drive module provides motive power to a pump of the fluid module to power pumping by the fluid module. The transfer pump further includes a spout extending mounted to an outlet connector of the fluid module by an inlet end of the spout interfacing with an outlet end of the outlet connector. The spout is repositionable relative to the outlet connector while mounted to the outlet connector.

Pump assemblies may include a pumping unit. The pumping unit may include at least one impeller having an impeller housing with an impeller housing intake end, an impeller housing outlet end and an impeller housing interior extending from the impeller housing intake end to the impeller housing outlet end. An impeller assembly may be disposed in the impeller housing interior of the impeller housing. The impeller assembly may include an impeller hub. At least one impeller screw blade may extend from the impeller hub. An impeller shaft may drivingly engage the impeller hub for rotation of the impeller assembly in the impeller housing interior. The impeller shaft may be configured for driving connection to the power unit. At least one diffuser may include a diffuser housing with a diffuser housing intake end disposed in fluid communication with the impeller housing outlet end of the impeller housing of the impeller, a diffuser housing outlet end and a diffuser housing interior extending from the diffuser housing intake end to the diffuser housing outlet end. A plurality of diffuser vanes may be disposed in the diffuser housing interior of the diffuser housing. At least one pump extension may include a pump extension housing with a pump extension housing intake end disposed in fluid communication with the diffuser housing outlet end of the diffuser housing, a pump extension housing outlet end and a pump extension housing interior extending from the pump extension housing intake end to the pump extension housing outlet end. Methods of pumping a liquid from an area to be drained to a discharge area are also disclosed.

An apparatus for an electrically powered liquid feature comprises a unit including a liquid pump and a rechargeable power source arranged to provide power to the pump for operation of the liquid feature. The unit may be removably installed in a reservoir having a cover that supports decorative features, such as pebbles, gravel and/or plants. The cover may have partitions so as to provide a pattern of different decorative features. One or more translucent or transparent features may be removably attached to the upper side of the cover. The cover may allow light to pass through from the unit to these features. There may be provided an outlet portion removably connected above the cover. The outlet portion may comprise a tiered cascade feature. Alternatively, the outlet portion may comprise a plurality of interconnected, stacked components. Alternatively, the outlet portion may comprise an adapter to which a statue or figurine may be removably attached.

Systems and methods for monitoring operation of a sump pump are provided. A method includes connecting a power adapter to the sump pump and a float-switch. The power adapter includes a controller positioned within a housing, prongs in communication with components coupled to the controller, a first receptacle and a second receptacle. The controller is configured to establish a wireless connection to a first wireless network, and transmit a message to a remote server over the first wireless network. The controller is further configured to determine a power status of a float switch and control the pump based on power status of the float switch.

Systems and methods for monitoring operation of a sump pump are provided. A method includes connecting a power adapter to the sump pump and a float-switch. The power adapter includes a printed circuit board (PCB) positioned within a housing, a power supply in electrical communication with components coupled to the PCB, and an integrated chip coupled to the PCB. The integrated chip is configured to establish a wireless connection to a first wireless network, and transmit a message to a remote server over the first wireless network. The method further includes causing an internet enabled device to send one or more instructions that causes the power adapter to connect to the first wireless network, and receiving, using the internet enabled device, a message from the remote server.

A hydraulic pump system includes a housing defining a tank for containing hydraulic fluid in use; one or more pump modules each comprising a hydraulic pump for supplying hydraulic fluid from the tank to a hydraulic system; and a mounting arrangement; wherein the or each pump module is mounted to the housing by the mounting arrangement.

A heat insulating vessel for a low temperature liquefied gas pump, which includes an inner tank configured to accommodate low temperature liquefied gas, an outer tank provided externally around the inner tank, and a low temperature liquefied gas pump disposed inside the inner tank. The outer tank has an outer tank upper part that is an upper end portion thereof, and an outer tank body other than the outer tank upper part. A lid structure having a heat-insulated structure detachably fitted into an upper part of the inner tank. The pump is fixed to the lid structure, and a suction pipe and a discharge pipe are insertedly fixed to the lid structure. A vacuum insulating layer is provided between the inner tank and the outer tank. With this heat insulating vessel for the low temperature liquefied gas pump, adiabaticity of the lid structure and maintainability of the pump are increased.

A waterproof emulsion pump with an external spring includes a pump body extending into a bottle body, a pump chamber is arranged in the pump body, a locking bottle cover is connected to the pump body, a pumping component is arranged in the pump chamber, and a locking cover is connected to the pump body; a one-way valve is arranged at a lower end of the pump chamber, an upper end of the pumping component is connected with a pressing head capable of driving the pumping component to operate, the pumping component includes an upper pump rod, a spring is arranged between the upper pump rod and the locking cover, a lower end of the upper pump rod is connected with a lower pump rod, a liquid inlet groove opening is formed in the lower pump rod.