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John W Berg: Auxiliary power system and apparatus. Owen Wickersham & Erickson, June 28, 1977: US04031705 (40 worldwide citation)

An auxiliary power system for an internal combustion engine. The system employs a vapor or hot gas engine coupled to an internal combustion engine by means of an overruning clutch assembly. The internal combustion engine, operated conventionally, generates heat in its cooling and exhaust systems as ...


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John W Berg: Precision electromechanical measuring device. Thomas M Freiburger, November 18, 1986: US04622751 (18 worldwide citation)

A precision electromechanical measuring device utilizes a strain gauge or pressure transducer to sense changes of position in a workpiece contacting finger. The finger is pivotable about a relatively stiff pivot to different positions, enabling the instrument's use as a center finder for circular bo ...


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John W Berg: Valve. Owen Wickersham & Erickson, February 24, 1981: US04252296 (15 worldwide citation)

A piston-like member slides within a valve body, with one end sealingly engageable against a valve seat communicating with an inlet port. The other end of the piston-like member forms a movable wall of an expansible chamber which, when it expands, moves the member toward valve closure. Preferably, b ...


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John W Berg: Means and method of forming sheet metal. Lyon & Lyon, January 27, 1976: US03934440 (10 worldwide citation)

A means of and method of forming sheet metal by use of fluid pressure wherein an initially flat sheet metal work piece is placed on a backing plate with its margins clamped between the plate and a peripheral clamping ring. The clamping ring is clamped against the margin of the work piece by a plural ...


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Lloyd Berg, John W Berg: Removal of sulfur from petroleum coke with lime. Lloyd Berg, January 1, 1991: US04981667 (8 worldwide citation)

The sulfur in petroleum pitches and cokes can be converted to calcium sulfate instead of sulfur dioxide during combustion when calcium oxide or calcium carbonate is added to the molten pitch before burning.


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John W Berg: Auxiliary power system and apparatus. Owen Wickersham & Erickson, January 2, 1979: US04132384 (4 worldwide citation)

A solenoid valve for fluid flow control, in which the solenoid has an armature movable within a core in response to current in a field coil. The armature is shaped as a cone with a hemispherical end so as to give a power output that is a substantially linear function of said current. Valve control m ...


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John W Berg: Solenoid having a linear response. Owen Wickersham & Erickson, April 17, 1979: US04150351 (4 worldwide citation)

A solenoid for uses such as in a valve for fluid flow control. The solenoid has an armature movable within a core in response to current in a field coil. The armature is shaped as a cone with a hemispherical end so as to give a power output that is a substantially linear function of said current. In ...


8
Lloyd Berg, John W Berg, John C Orth: Removal of sulfur from coal and pitch with dolomite. Lloyd Berg, September 21, 1993: US05246470 (1 worldwide citation)

The sulfur in bituminous coal can be converted to calcium sulfate instead of sulfur dioxide during combustion when it is mixed with petroleum pitch and calcium oxide, calcium carbonate or dolomite.


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