Patent ID: 11889868
Assignee: nan
Field: Other consumer goods (Other fields)
Classification: CPC A | IPC A

Claim 0:
1. A fluid delivery kit, comprising:
a refill bottle with a pipette head key to one lateral end, a lock mechanism enveloped in a mounting base, the mounting base reversibly attached to one end of a cartridge;
wherein the pipette head key is configured to rotatably engage with the lock mechanism such that a liquid filling hole is configurable to an open position and a closed position, said open position permitting fluid delivery into a liquid tank, said closed position preventing fluid escape from the liquid tank;
wherein the mounting base is further configured to have a first liquid inflow hole and the lock mechanism further configured to have a ceiling, a second liquid inflow hole, and an entrapment notch;
the pipette head key is configured to have a protruding shape, the liquid filling hole is configured to have an intruding shape, wherein the shapes are configured to match such that the protruding shape of the pipette head key is insertable to the intruding shape of the liquid filling hole;
the pipette head key further has an entrapment protrusion, the entrapment protrusion configured to engage with the entrapment notch;
a first rotational engagement of the pipette head key with the lock mechanism results in the alignment of the first liquid inflow hole with a second liquid infill hole resulting in a liquid inflow passageway which is unobstructed;
a second rotational engagement of the pipette head key with the lock mechanism results in the misalignment of the first liquid inflow hole with the second liquid infill hole resulting in the liquid inflow passageway being obstructed; and,
the first rotational engagement of the pipette head key with the lock mechanism results in the entrapment protrusion being entrapped between an entrapment ledge and the entrapment notch simultaneous with the alignment of the first liquid inflow hole with the second liquid infill hole prohibiting removal of the pipette head key from the lock mechanism.