Rechargeable battery powered utility pump with series centrifugal pump configuration

A utility pump comprising:

• a housing having a series configuration of integral pumps, also having a battery receiving portion configured with a flat wall having electrical terminals arranged thereon for receiving power for providing to the utility pump;
• and a battery having a protruding portion configured with a corresponding flat wall having corresponding electrical terminals arranged thereon, the corresponding electrical terminals being configured to contact respectively both of the electrical terminals on the flat wall of the battery receiving portion to provide power from the battery to the utility pump when the protruding portion of the battery is inserted into the battery receiving portion of the housing and rotated in one direction to an “ON” position, and the corresponding electrical terminals also being configured not to contact respectively both of the electrical terminals on the flat wall of the battery receiving portion when the battery is rotated from the “ON” position to an “OFF” position;
• the battery receiving portion has an internal wall configured with at least one axial channel therein, the internal wall of the battery receiving portion configured with at least one partial circumferential channel;
• the protruding portion has an external wall having at least one further protruding portion configured to engage the at least one axial channel for guiding and orienting the battery when inserted into the battery receiving portion into a first rotational position;
• the at least one partial circumferential channel has a flexible locking device having a first face and a second face that is configured on a flexible hinge portion;
• the first face is configured on an angle so as to respond to the at least one protruding portion and flex the flexible locking device downwardly into an opening or slot and below a surface of the axial channel so as to allow the at least one further protruding portion to slide or pass by when the battery is rotated in the one direction in the battery receiving portion;
• the flexible locking device is configured to flex back upwardly above the channel surface once the at least one further protruding portion slides or passes by the first face;
• and the second face is configured to extend into the partial circumferential channel above the channel surface so as to prevent the at least one protruding portion of the external wall of the battery from passing or sliding by when the battery is rotated in an opposite direction in the battery receiving portion so as to lock the battery in the battery receiving portion so it cannot be removed.

A utility pump comprising:

• a housing configured with a series configuration of integral pumps, and also configured with a battery receiving portion having electrical terminals for receiving power for providing to the series configuration of the integral pumps, the battery receiving portion having an internal wall configured with at least one axial channel therein, the internal wall of the battery receiving portion configured with at least one partial circumferential channel;
• and a battery having a protruding portion with corresponding electrical terminals configured to contact the electrical terminals on the battery receiving portion to provide the power to the series configuration of integral pumps when the protruding portion of the battery is inserted into the battery receiving portion of the housing and rotated in one direction to an “ON” position, and also configured so as not to contact the electrical terminals of the battery receiving portion when the battery is not rotated to the “ON” position, the protruding portion having an external wall with at least one further protruding portion configured to engage the at least one axial channel for guiding and orienting the battery when inserted into the battery receiving portion into a first rotational position, the at least one further protruding portion configured to engage the partial circumferential channel for rotating the battery from a first position when the protruding portion of the battery is inserted into the battery receiving portion of the housing into either a second rotational position, including the “ON” position where the series configuration of integral pumps is turned “ON”, or to a third rotational position, including the “OFF” position where the series configuration of integral pumps is turned “OFF;
• the at least one partial circumferential channel having a flexible locking device with a first face and a second face that is configured on a flexible hinge portion;
• the first face being configured on an angle so as to respond to the at least one further protruding portion and flex the flexible locking device downwardly into an opening or slot and below a surface of the axial channel so as to allow the at least one further protruding portion to slide or pass by when the battery is rotated in the one direction in the battery receiving portion;
• the flexible locking device being configured to flex back upwardly above the channel surface once the at least one further protruding portion slides or passes by the first face;
• and the second face being configured to extend into the partial circumferential channel above the channel surface so as to prevent the at least one further protruding portion from passing or sliding by when the battery is rotated in an opposite direction in the battery receiving portion so as to lock the battery in the battery receiving portion so it cannot be removed.