Patents by Inventor Elmer T. Skantar
Elmer T. Skantar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5898102Abstract: A brake pipe leakage test for a train is performed using an improved brake pipe drop pressure method prior to departure of the train consist from a railyard terminal. The train consist includes a brake, a brake pipe, and a brake pipe cutoff valve.Type: GrantFiled: August 21, 1997Date of Patent: April 27, 1999Assignee: Westinghouse Air Brake CompanyInventor: Elmer T. Skantar
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Patent number: 5866811Abstract: An automated terminal test system performs a terminal test of brake equipment on a train. The system includes a test control box connected to a head of train locomotive and accessible from outside of such locomotive. Linked to such brake equipment, the test control box has a control for activating the test control box, applying and releasing the brakes, and charging and venting such brake pipe. The system also includes an end of train transceiver device connected to such brake pipe on a last railcar of such train. The end of train transceiver device monitors pressure within such brake pipe on such last railcar, senses movement of such last railcar, and communicates signals representative of such pressure monitored and such movement sensed. The system further includes a head of train transceiver device linked to such brake equipment and connected to such brake pipe on such locomotive.Type: GrantFiled: February 28, 1997Date of Patent: February 2, 1999Assignee: Westinghouse Air Brake Co.Inventor: Elmer T. Skantar
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Patent number: 5817934Abstract: An automated terminal test system and performs a terminal test of brake equipment on a train. The system includes a test control box connected to a head of train locomotive and accessible from outside of such locomotive. Linked to such brake equipment, the test control box has a control for activating the test control box, applying and releasing the brakes, and charging and venting such brake pipe. The system also includes an end of train transceiver device connected to such brake pipe on a last railcar of such train. The end of train transceiver device monitors pressure within such brake pipe on such last railcar, senses movement of such last railcar, and communicates signals representative of such pressure monitored and such movement sensed. The system further includes a head of train transceiver device linked to such brake equipment and connected to such brake pipe on such locomotive.Type: GrantFiled: February 28, 1997Date of Patent: October 6, 1998Assignee: Westinghouse Air Brake CompanyInventor: Elmer T. Skantar
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Patent number: 5747685Abstract: An automated terminal test system for performing a terminal test of brake equipment on a train includes a test control box connected to a head of train locomotive and accessible from outside of such locomotive. Linked to such brake equipment, the test control box has a control for activating the test control box, applying and releasing the brakes, and charging and venting such brake pipe. The system also includes an end of train transceiver device connected to such brake pipe on a last railcar of such train. The end of train transceiver device monitors pressure within such brake pipe on such last railcar, senses movement of such last railcar, and communicates signals representative of such pressure monitored and such movement sensed. The system further includes a head of train transceiver device linked to such brake equipment and connected to such brake pipe on such locomotive.Type: GrantFiled: July 20, 1995Date of Patent: May 5, 1998Assignee: Westinghouse Air Brake CompanyInventor: Elmer T. Skantar
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Patent number: 5415465Abstract: An apparatus for initiating and latching a bail-off request for depleting the automatic brake pressure in the brake cylinders of a locomotive consist including a cab control unit having an automatic brake handle and an independent brake handle. A central processing unit receives a first input signal from the cab control unit which is indicative of the number of locomotives in the consist and receives a second input signal from the cab control unit which signifies a bail-off request. A display screen receives input signals from the central processing unit for exhibiting either a setup screen or a normal running screen in the locomotive. An electropneumatic unit receives an input signal from the central processing unit for initiating the bail-off of the automatic brakes on the locomotive consist when the independent brake handle is placed in a bail-off position.Type: GrantFiled: June 1, 1993Date of Patent: May 16, 1995Assignee: Westinghouse Air Brake CompanyInventors: Elmer T. Skantar, Leonard Roselli
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Patent number: 5131612Abstract: A system for positively determining that an engineman has actually activated a manual whistle valve to sound a pneumatic warning horn on a railway vehicle having a low pressure and high pressure sensing apparatus for conveying signals to an event recorder for monitoring and recording the pressure of an air supply source and the sounding of the pneumatic warning device.Type: GrantFiled: December 7, 1990Date of Patent: July 21, 1992Assignee: Westinghouse Air Brake CompanyInventor: Elmer T. Skantar
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Patent number: 5096266Abstract: A brake control system having a vent valve device in which a control piston is effective to unseat a normally closed vent valve to provide rapid exhaust of brake pipe pressure to either propagate an emergency brake application in response to brake pipe pressure on one side of the piston being reduced at an emergency rate or to initiate an emergency brake application when pressure on the opposite side of the piston is increased by an auxiliary pilot valve connected to a second main reservoir at a higher pressure.Type: GrantFiled: February 8, 1991Date of Patent: March 17, 1992Assignee: Westinghouse Air Brake CompanyInventor: Elmer T. Skantar
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Patent number: 4904027Abstract: A pneumatic pressure control arrangement for controlling the brakes of railway vehicles. A manual brake command controller converts a selected brake position into a corresponding electrical signal. An application magnet valve is connectable to a source of air pressure and to a storage device. A release magnet valve is connectable to atmosphere and to the storage device. An electropneumatic transducer senses the pressure in the storage device and provides a feedback signal. A microprocessor receives and compares the electrical signal with the feedback signal to develop an error signal which initially energizes the application magnet valve and the release magnet valve upon request of braking effort, and which subsequently pulses the application magnet valve when the pressure in the storage device is within a preselected control range, and which finally deenergizes the application magnet valve when the pressure in the storage device is within a preselected deadband range to cause a lap condition.Type: GrantFiled: October 3, 1988Date of Patent: February 27, 1990Assignee: American Standard Inc.Inventors: Elmer T. Skantar, Walter J. Sanders