Patent ID: 8127784

Claim:
A device for draining a screw-on fluid filter comprising: a hollow body member threadedly engaged with a puncturing member: the hollow body member comprising: a plurality of sides radially disposed about a central axis, the plurality of sides each having an outer surface separated from an inner surface by a thickness, wherein the outer surface of the plurality of sides defines a body member outer side and wherein the inner surface of the plurality of sides defines an internal conduit extending longitudinally along the central axis between a body member first end and a body member second end; the body member first end comprising outer threads disposed into at least a portion of the body member outer side, the outer threads being coaxially arranged about the central axis, wherein the outer threads are dimensioned and arranged to at least partially engage a threaded attachment portion of the screw-on fluid filter; and wherein at least a portion of the internal conduit comprises inner threads disposed into at least a portion of the inner surface, the puncturing member comprising: a shaft having a puncture end separated from a turning end, wherein at least a portion of the shaft is threaded, wherein at least a portion of the shaft is dimensioned such that the puncturing member threadedly engages the inner threads of the internal conduit such that rotating the puncturing member relative to the body member in a first rotational direction causes the puncture end to move away from the body member, and rotating the puncturing member relative to the body member in a second rotational direction causes the puncture end to move toward the body member.