Patent ID: 6161841
Filing Date: 2000-12-19
Classification: B60K,F16J,Y10S

Abstract:
As an article of manufacture a vehicle O ring fuel cap gasket, wherein the improvement comprises;a--said vehicle O ring fuel cap gasket having a diagonally inverted modified C shape in cross section and,b--a groove channel extending for the full circumference of said O ring and,c--in cross section said groove channel having edges extending downward and,d--a first edge of said groove channel extending downward to about 4 o'clock position and second edge of said groove channel extending downward to about 7:30 o'clock and,e--said groove channel extending diagonally upwards for a depth of about 2.2.times. to about 2.5.times. the thickness T-T' of said C shape and,f--said O ring formed of an elastomer having a Shore A hardness of about 50 to 60 and ultimate elongation range of 200% to 350% and,g--said elastomer selected from the group consisting of fluoroelastomer and nitrile rubber.