Oil filter cover

Claim 1

In combination with a screw-on type oil filter including a generally cylindrical housing having first and second ends and including first threaded connecting means at said first end for threaded connection with and unthreading connection from an oil filter mounting location including second threaded connecting means to be threadingly engaged by said first threaded connecting means, an oil catching and retaining cover, said cover including a tubular body having first and second open ends and loosely telescopingly engaged over said filter from the second end thereof with said body first end spaced outward from said housing first end and said body second end disposed about an intermediate portion of said housing disposed between the first and second ends thereof, said body second end including a generally annular end wall partially closing said second end of said body, being disposed about said housing intermediate portion and including seal means frictionally engaging said intermediate portion and forming a reasonably good fluid tight seal between the inner periphery of said annular end wall and said housing intermediate portion, said housing being constructed of fluid impervious material and including a yieldingly axially compressable and integral bellows portion intermediate said annular end wall and said first body end, said body first end including axially outwardly facing seal means for forming a reasonably good fluid tight seal with said oil filter mounting location.