Modular pump

摘要

A modular liquid pump operable as a liquid pump when used by itself and as a foam pump when combined with a modular air pump is disclosed herein. In one embodiment, the modular liquid pump includes a housing for forming a least a portion of a liquid pump chamber; an inlet valve for allowing liquid into the liquid pump chamber; an outlet valve for allowing liquid out of the liquid pump chamber; and an attachment mechanism configured to secure the liquid pump housing to a modular air pump. The modular liquid pump operates alone to output a liquid or operates in combination with an air pump to output a foam. One embodiment includes a modular air pump configured to be secured to the modular liquid pump. In such a combination, the modular liquid pump and the air pump operate together to output a foam.

主权项

1. A modular liquid pump operable as a liquid pump when used by itself and as a foam pump when combined with a modular air pump, the modular liquid pump comprising:
a liquid pump housing for forming at least a portion of a liquid pump chamber; an inlet valve for allowing liquid into the liquid pump chamber; a liquid piston movable within the liquid pump housing; an outlet valve for allowing liquid out of the liquid pump chamber; and an attachment mechanism configured to secure the liquid pump housing to a modular air pump; wherein the modular liquid pump operates alone to output a liquid through a first outlet and selectively operates in combination with the modular air pump to output a foam through a second outlet; and wherein when the liquid pump housing is secured to the modular air pump, the modular air pump and the liquid piston are coaxial and the liquid piston extends at least partially through the center of the modular air pump.