Patent ID: 11904485
Assignee: ANDIS COMPANY
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 16:
17. A cordless hair clipper, comprising:
an electrical storage device to store electric energy;
a drive assembly coupled to the electrical storage device;
a blade assembly, including:
an upper blade coupled to the drive assembly; and
a stationary outer blade coupled to the upper blade, wherein the drive assembly uses electrical energy from the electrical storage device to move the upper blade over the outer blade; and

a housing surrounding the electrical storage device and the drive assembly, the housing, comprising:
an upper housing including an interior surface and an exterior surface;
a lower housing including an interior surface and an exterior surface, the lower housing coupled to the upper housing; and
a drive cap including an interior surface and an exterior surface, wherein one of the upper housing and the drive cap includes a snap fastener on the interior surface thereof and the other of the upper housing and the drive cap comprises a snap detent on the interior surface thereof, wherein the snap fastener and the snap detent releasably couple the drive cap to the upper housing;

wherein the cordless hair clipper further comprises protrusions on the interior surface of the drive cap, the protrusions extending beyond a rearward edge of the drive cap and configured to align with voids formed within a forward edge of the upper housing, such that when the cordless hair clipper is assembled the voids receive the protrusions to seal the drive cap onto the upper housing.