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| Number | Title | Issue Date |
| 5537823 | High efficiency energy conversion system A combined cycle thermodynamic heat flow process for the high efficiency conversion of heat energy into mechanical shaft power is disclosed. This process is particularly useful as a high efficiency energy conversion system for the supply of electrical pow... | 07/23/1996 |
| 4798052 | Constant-clearance brake piston system with braking pressure intensifier The hydraulic brake adjuster (10) intensifying and piston assembly (30) include an exterior pressure device (11) which is disposed separate from a piston (32). The exterior pressure device (11) includes a differential area piston (12) receiving actuation ... | 01/17/1989 |
| 4319671 | Hydro-pneumatic brake actuator arranged to maintain a constant brake shoe clearance A hydro-pneumatic brake actuator arranged with a slack adjuster piston and one-way check valve device in the hydraulic path between a hydro-pneumatic actuator and a power piston, to which a friction brake element is connected for engagement with a vehicle... | 03/16/1982 |
| 4174026 | Dash pot for a hydraulic actuator for a drum brake A drum brake assembly provides a pair of brake shoes which are movable by a hydraulic actuator to a braking position. The hydraulic actuator is carried by a backing plate and the pair of brake shoes is movable relative to the backing plate. A piston is sl... | 11/13/1979 |
| 4004425 | Tandem master cylinders for hydraulic braking systems In a tandem master cylinder main and secondary pistons are interconnected by a rigid sleeve. One end of the sleeve is secured to one of the pistons, and an inwardly projecting lip or flange on the other end of the sleeve provides an abutment for a head on... | 01/25/1977 |
| 3955370 | Hydraulic slack adjuster and brake circuits therefor The disclosure concerns a hydraulic slack adjuster useful in the brake circuits of railway as well as road vehicles, and improved brake circuits and apparatus particularly suited to the needs of railway rapid transit service. One type of circuit incorpora... | 05/11/1976 |
