Abstract: A method of manufacturing a fluid filter comprising: (a) providing a cone having a tip end and an open end and made of a filter material; (b) providing a support element having a plurality of concentric annular members mounted on a base and having outermost and innermost concentric annular members; (c) aligning the central axes of the cone and the support element with the tip end of the cone closest to the support element; and (d) inserting a portion of the cone into a circular area between two concentric annular members by placing a forming sleeve inside the cone and inserting the forming sleeve between the two concentric annular members, the concentric annular members being generally cylindrical and having an interior and an exterior.

Abstract: A tool for removing and replacing wheels of heavy vehicles such as buses and trucks. The tool has a track with a first end member to be clamped to the vehicle axle. Chains on the intermediate part of the tool support the tool on the wheel of the vehicle. The chains can be released when the first end is clamped and the second end supported. Adjustable legs are supported on the second end of the track for supporting the second end of the track. A carriage with a wheel support on it is movable on the track. The wheel support is clamped firmly to the wheel support on the carriage. The axle nut may then be removed and the carriage can be moved toward the second end member and locked in position on the track with the wheel on it. The wheel can then be swung to an inclined position for servicing. When serviced, the carriage with the wheel can be moved toward the first end member of the track bringing the wheel back onto the axle.