Any compression spring close to the correct diameter and length can be converted to a conical shape with a pair of channellock pliers in a matter of minutes. All it needs to do is hold the element down toward the bottom of the canister. The O rings at the top and the bottom of the canister do the sealing so the oil gets forced through the filter media.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!