Inventor

HART JAMES E

US80 patents

⚠️ This page may combine multiple inventors who share the name “HART JAMES E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HART JAMES E

WESTINGHOUSE AIR BRAKE CO

Selectable grade and uniform net shoe force braking for railway freight vehicle

Freight brake control using train net braking ratio

Freight brake control using train net braking ratio

Freight brake control for uniform car deceleration

Retained seat check valve

Microprocessor based system and method for regulating a railroad car brake pipe pressure

Train brake pipe pressure exhaust control system and regulating valve therefor

System and method for automatically calibrating transducers in electro-pneumatic freight brake control systems

Brake cylinder pressure relay valve for railroad freight car

Computer control of railroad train brake system operation

Train brake pipe remote pressure control system and motor-driven regulating valve therefor

Railway brake pipe bracket with access ports

Fastener assembly for installing valve devices and the like

Railway brake pipe bracket access plate

Ralway automatic brake control valve test unit

Application solenoid valve for electronically controlled freight train brake system

Apparatus and method for a railway freight car brake control

Pneumatically driven train brake pipe pressure exhaust valve

Electro-pneumatic brake system and controller therefor

Combination motor pneumatic driven train brake pipe pressure exhaust valve

Pneumatically driven train brake pipe pressure exhaust valve

Combination motor/pneumatic driven train brake pipe pressure exhaust valve

Test connector for automatic test device

High pressure valve for railway car brake control valve device

Quick service limiting valve for freight brake control valve device

Empty/load changeover valve for railway car

AMERICAN STANDARD INC

Empty/load changeover valve for railway car

Single-cylinder, truck-mounted brake assembly

Single-cylinder truck-mounted brake assembly

Truss-type brake beam for railway vehicle truck-mounted brake assembly

Control valve arrangement for combined brake and air reservoir device

Vent valve device

Freight brake control valve having improved quick service function

Freight brake emergency valve

Freight brake control valve having an emergency piston slide valve arranged to provide an accelerated brake application function

Empty/load brake control arrangement

WESTINGHOUSE AIR BRAKE TECH CORP

Grade speed control and method for railway freight vehicle

Control apparatus for the application and release of a hand brake

Unitized railcar brake equipment

Ramp latching mechanism

Railway electro-pneumatic brake valve and emulation method

Apparatus and method for pneumatically controlled graduated brake pressure release for freight train brake system

HART JAMES E

Swing training machine

Underwater signalling device

Multipurpose furniture

(unassigned)

Dog transportation box

Adjustable athletic support garment and incontinence pad holder

Railway brake pipe bracket with access ports

WABTEC HOLDING CORP

Automatic parking brake for a rail vehicle

WESTINGHOUSE ELECTRIC CORP

Production of uranium dioxide