Abstract: The present invention shows a multi-purpose, utility bag comprising:a bag member, said bag member having a base portion and a back portion and being constructed of flexible material;a support member integrated into said bag member and providing firm support for said bag member at least in the area of said base portion and said back portion of said bag member; and,a non-linear array of load-bearing, rotatable castors fixedly attached to the base portion of said support member permitting the utility bag to sit upright and roll across a flat surface upon said castors.

Abstract: A process for elimination of a conventional head gasket as typically utilized in an internal combustion engine, and more particularly in a motorcycle engine, is set forth wherein the cylinder head is removed from the associated engine block. The cylinder head is formed with a coaxially aligned groove of rectangular cross-sectional configuratiion. A complementary groove of equal diameter and axially aligned with the groove formed about the combustion chamber is formed into the engine block. An "O" ring of a cross-sectional area greater than that of the combined cross-sectinal area of the groove formed in the cylinder head and of the groove in the engine block is positioned within the grooves whereupon securement of the cylinder head to the engine block compresses the "O" ring within the aligned grooves to effect sealing of the engine block to the groove.