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Schaefer; Norman
Pleasant Valley, CT
No. of patents:

Patent Number Title Of Patent Date Issued
6179096 Exhaust brake variable bypass circuit January 30, 2001
An exhaust brake for an internal combustion engine is disclosed. The exhaust brake includes a main valve and a bypass valve for restricting the flow of exhaust gas. The main valve may be selectively closed, while the bypass valve is biased into a closed position with a selective biasing
5947235 System and method of exhaust brake control September 7, 1999
A system and method for controlling a vacuum operated exhaust brake. A vehicle may be provided with service brake assistance and an exhaust brake, each of which may be driven by a common vacuum source. In the event the available vacuum is likely to be insufficient to meet the demand of
5845748 Low restriction exhaust brake December 8, 1998
An exhaust brake for an internal combustion engine is disclosed. The internal surfaces of the exhaust brake are aerodynamically shaped and sized to reduce the incidence of turbulent flow through the exhaust brake. The shape of the internal passage through the brake housing may be dic

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