Paul E Jamieson

US Patent:

6631791, Oct 14, 2003

Filed:

Dec 15, 1999

Appl. No.:

09/461923

Inventors:

Roland S. Moore - Taylors SC
Paul E. Jamieson - Greer SC

Assignee:

Westinghouse Air Brake Co - Wilmerding PA

International Classification:

F16D 6600

US Classification:

188 111W, 188218 XL

Abstract:

A brake disc wear indicator comprising a brake disc rotor having two opposed braking surfaces for engaging opposed brake friction pads, and at least one hole provided in the rotor at a location behind a braking surface and at a predetermined depth and distance from the braking surface such that the hole is originally invisible by the presence of brake rotor material but becomes visible when brake rotor material is worn away to the extent that the hole becomes exposed and visible.

US Patent:

62869132, Sep 11, 2001

Filed:

Nov 9, 1995

Appl. No.:

8/556198

Inventors:

Richard J. Mazur - Greer SC
Richard F. Balukin - Pittsburgh PA
Robert D. Dimsa - Elizabeth PA
Paul E. Jamieson - Greer SC

Assignee:

Westinghouse Air Brake Company - Wilmerding PA

International Classification:

B60T 1370

US Classification:

303 15

Abstract:

A limp-in control arrangement for an electro-pneumatic integrated control system for railway vehicles including a supply and exhaust magnet valve for electrically controlling the pneumatic brakes on the railway vehicle, an electromagnetic relay for sensing the operational condition of the electro-pneumatic integration control system, a switching device for enabling a limp-in control function when the electro-pneumatic integrated control system is experiencing a malfunction, an operating device for initiating a limp-in control function by releasing and reapplying the pneumatic brakes to allow the railway vehicle to be moved to a repair facility.

US Patent:

60239662, Feb 15, 2000

Filed:

Feb 20, 1997

Appl. No.:

8/803415

Inventors:

Richard J. Mazur - Greer SC
Paul E. Jamieson - Greer SC
John H. Corvin - Greer SC

Assignee:

Westinghouse Air Brake Company - Wilmerding PA

International Classification:

B60L 100
G05D 1366

US Classification:

73129

Abstract:

A system detects cut-out of brakes on a train in a safe manner. Each vehicle in the train has at least one truck. Each truck has brakes which may be cut-out via a cut-out cock. A frequency generator generates a signal at a predesignated frequency. This signal is conveyed from a first vehicle in the train to a last vehicle in the train along a feed line and from the last vehicle to the first vehicle along a return line. Each cut-out cock assumes an open position wherein the brakes of its truck are cut-in or a closed position wherein the brakes of its truck are cut-out. Each cut-out cock features a switch in series with the return line that closes when its cutout cock assumes the open position or opens when its cutout cock assumes the closed position. A frequency divider for each switch connects in parallel therewith. When the switch is closed, the signal passes through the switch wherein division of frequency is avoided.

US Patent:

57000662, Dec 23, 1997

Filed:

Oct 24, 1996

Appl. No.:

8/736576

Inventors:

Paul E. Jamieson - Greer SC

Assignee:

Westinghouse Air Brake Company - Wilmerding PA

International Classification:

B60T 714

US Classification:

303 19

Abstract:

A brake control apparatus that applies and releases the brakes of a rail vehicle incorporates a penalty brake design. The brake apparatus includes a first mechanism for providing a service brake control pressure in accordance with a command for service braking and a second mechanism for providing an emergency brake control pressure in accordance with a command for emergency braking. The brake apparatus also includes a standard check valve for conveying to a standard load valve the higher of the service and emergency control pressures received from the first and second mechanisms. The standard load valve provides in response to whichever of the brake control pressures is received from the standard check valve a first brake cylinder control pressure that is proportional to weight borne by the rail vehicle. The brake apparatus further includes a relay valve that operates the brake apparatus in response to the first control pressure received from the standard load valve. The penalty brake design comprises a penalty check valve, a penalty load valve and a third mechanism for providing a penalty brake control pressure in response to a command for penalty braking.

US Patent:

57464855, May 5, 1998

Filed:

Oct 24, 1996

Appl. No.:

8/736265

Inventors:

Paul E. Jamieson - Greer SC

Assignee:

Westinghouse Air Brake Company - Wilmerding PA

International Classification:

B60T 714

US Classification:

303 19

Abstract:

A brake control apparatus that applies and releases the brakes of a rail vehicle generally according to changes in pressure occurring within a straight air pipe incorporates a penalty brake circuit. The brake apparatus includes a controlling device for initiating changes of pressure within the straight air pipe. The brake apparatus also includes a first mechanism for providing a service brake control pressure in accordance with a command for service braking and a second mechanism for providing an emergency brake control pressure in accordance with a command for emergency braking. The brake control apparatus further includes a standard check valve for conveying to a standard load valve the higher of the service and emergency brake control pressures received from the first and second mechanisms. The standard load valve effects operation of the brake apparatus in response to whichever of the brake control pressures is received from the standard check valve. The penalty brake circuit comprises a third mechanism for providing a penalty brake control pressure to the straight air pipe in response to a command for a penalty braking.

US Patent:

57000654, Dec 23, 1997

Filed:

Oct 24, 1996

Appl. No.:

8/736292

Inventors:

Paul E. Jamieson - Greer SC

Assignee:

Westinghouse Air Brake Company - Wilmerding PA

International Classification:

B60T 714

US Classification:

303 19

Abstract:

A brake control apparatus that applies and releases the brakes of a rail vehicle incorporates a penalty brake scheme. The brake apparatus includes a first mechanism for providing a service brake control pressure in accordance with a command for service braking and a second mechanism for providing an emergency brake control pressure in accordance with a command for emergency braking. The brake apparatus also includes a standard check valve for conveying to a standard load valve the higher of the service and emergency control pressures received from the first and second mechanisms. The standard load valve operates the brake apparatus in response to whichever of the control pressures is received from the standard check valve. The penalty brake scheme comprises a penalty check valve and a third mechanism for providing a penalty brake control pressure in response to a command for penalty braking. The penalty check valve connects between the first and third mechanisms and the standard check valve.