Filter package

Claim 1

An improved package for use in packaging an elongated filter can of the type employed in filtering oil circulating through a pressurized system of an automotive engine, including a base having an internally threaded orifice adapted to be coupled with a pressure system and a distal end portion circumscribed by an annular array of external flats, comprising: A. a support shell formed of expanded cellular polystyrene for receiving therewithin a filter can and having a receiver for receiving and supporting, within the support shell, the distal end of the filter can, said receiver comprising an annular array of a plurality of substantially radially extended lands separated by a plurality of axially extended grooves defining a plurality of oil passageways between the lands, each of said lands being provided with a substantially radially extended shoulder for engaging and axially supporting the distal end of the filter can in a manner such that the filter can is simultaneously supported by said lands against movement in axial and radial directions; B. a cover shell formed of expanded cellular polystyrene for telescopically receiving said support shell in a substantially fluid-tight engagement and including means for receiving and supporting the base of the filter can; C. a piercing unit supported in said support shell and coaxially related to a filter can received within said support shell, including a shaft terminating in a point disposed immediately adjacent to the internal surface of the support shell having a concentrically related stop and being supported in a manner such that the piercing unit may be struck for advancing The point into a predetermined penetrated relationship with the received filter can for thereby releasing oil confined therewithin; and D. means defining an oil retention cup axially spaced from the distal end of said filter can, whereby the support shell is adapted to receive oil discharged from the filter can.