Abstract: A CNG fuel supply system is provided for a bus. The system includes a plurality of rearward tank cylinders mounted on the top of the bus and a plurality of forward tank cylinders mounted on the top of the bus. A CNG manifold line has a length extending transversally across the bus between the forward and rearward tank cylinders. A plurality of inlet lines connect the manifold line to the tank cylinders. The plurality of inlet lines include a plurality of bendable inlet expansion portions, one of which is associated with each tank cylinder for accommodating longitudinal expansion of the tank cylinder. A plurality of outlet lines connect the tank cylinders to the manifold line, with the plurality of outlet lines including a plurality of bendable outlet expansion portions, one of which is associated with each tank cylinder for accommodating longitudinal expansion of the tank cylinder.

Abstract: A CNG fuel supply system is provided for mounting a plurality of Type 4 tanks on the roof of a bus. A manifold line extends to the roof of the bus and is anchored against movement relative to the length of the bus. A shutoff valve is associated with each tank, the shutoff valve being mounted on an end of its respective tank adjacent the manifold line. The shutoff valve has two ports which communicate with the tank when the shutoff valve is open. An inlet tubing piece connects the manifold line to one of the two ports of each tank and an outlet tubing piece connects the manifold line to the other port of each tank. The tubing pieces are manufactured to be substantially identical to other tubing pieces of the tank system for a given bus, and to other tubing pieces for other buses in the fleet, thus reducing the number of different tubing pieces utilized for construction and maintenance of the fleet.

Abstract: A safety relief system for a CNG fuel supply of a vehicle includes first and second Type 4 cylindrical tanks, each having a shutoff valve at a first end and an outlet at a second end of the tanks. First and second relief devices are attached directly to the shutoff valve of the first and second tanks, respectively. Two separate relief outlet lines are connected to the outlets of the tanks. A common relief line is located generally parallel to and lying between the first and second tanks. The two separate relief lines are both connected to the common relief line. Third and fourth relief devices are connected to the common relief line. Each of the relief devices is constructed to relieve pressure on both the first and second tanks in response to either an excessive pressure or and excessive temperature at that relief device.

Abstract: An exerciser particularly adapted for the groin muscles or the chest muscles has a stand adjustable in height. A crossbar at the top of the stand carries two pivoted arms having pivoted pads on one end and one or more springs on the other. To exercise the groin, an athlete is seated before the device, places his feet on the base of the stand and his knees against the pads to compress them against the tension of the springs. To exercise chest muscles, the stand is placed upon a table and the arms at about the elbows are placed upon the pads and they are pushed inward against the springs.