| Patent application number | Description | Published |
|---|
| 20080264890 | Taper under tapered plate to increase side force on the movable plate - The present invention increases the capacity and resistance to closure of the draft gear assembly by providing an angled surface on the tapered plates intermediate of the inner and outer friction surface in the area where the tapered plate contacts the third horizontal rib of the housing. Providing an angle on the edge surface of the tapered plates in this area increases the side force on the movable plates during the application of a buffing shock to the draft gear assembly. | 10-30-2008 |
| 20090008352 | Draft gear assembly - A friction clutch mechanism for a draft gear assembly includes a pair of outer stationary plate members, a pair of movable plate members, a pair of inner stationary plate members having an inner surface which is tapered at an angle of approximately 4.5°, a pair of wedge shoe members having an upper surface which is tapered from a point disposed inwardly from the tapered outer surface inwardly toward and at an acute angle relative to a longitudinal axis of the friction clutch mechanism, and a center wedge member which includes a pair of correspondingly tapered surfaces frictionally engageable with the upper tapered surface of a respective one of the pair of wedge shoe members. The tapered upper surface of the pair of wedge shoe members is tapered at an angle of approximately 49.0°-50.0°. The pair of tapered surfaces of the center wedge is tapered at an angle of about 49.5°. | 01-08-2009 |
| 20090065312 | Slack adjuster for railway vehicle brake rigging - The present invention teaches a double-acting compression actuatable slack adjuster to adjust the slack in the brake rigging of a railway vehicle which includes a pair of elongated members movable with respect to each other in a longitudinal direction. A positioning device carrying a pair of opposed abutting surfaces is threadedly engaged with a threaded portion of the elongated rod. Pair of opposite facing abutment surfaces are positioned within the hollow housing. A first urging device is positioned to urge the positioning device into a disengaged position. A second urging device overcomes the force of the first urging device and urges an abutting surface on the positioning device into engagement with an adjacent abutment surface. A first overtravel control device is provided which is activated by a trigger device. A second overtravel control device is provided to prevent jamming condition of the positioning device with one of the abutment surfaces when the elongated rod is fully extended. | 03-12-2009 |
| 20090321376 | TWO PIECE DRAFT GEAR HOUSING HAVING AN INTEGRAL YOKE - A housing for a railway car draft gear assembly for cushioning buff and draft shocks includes a rear portion engageable with the rear stops of such railway car and a front portion configured for attachment to a coupler arm. Opposed ends of the front and rear portions are provided with complimentary flanges for removable attachment of the front portion to the rear portion with threaded fasteners. | 12-31-2009 |
| 20100000956 | TWO PIECE DRAFT GEAR HOUSING HAVING A INTEGRAL YOKE - A housing for a railway car draft gear assembly for cushioning buff and draft shocks includes a rear portion engageable with the rear stops of such railway car and a front portion configured for attachment to a coupler arm. Opposed ends of the front and rear portions are provided with complimentary flanges for removable attachment of the front portion to the rear portion with threaded fasteners. | 01-07-2010 |
| 20110259680 | PARKING BRAKE ASSEMBLY FOR RAILWAY VEHICLE BRAKE SYSTEM - A parking brake assembly for a railway car includes a ratchet mounted for rotation on a threaded piston rod of a brake actuator and a holding pawl engageable with the ratchet for maintaining a push rod of the parking brake assembly to apply braking force when the air pressure is lost in the brake pipe and releasing the push rod to accordingly release the braking force when the supply of air pressure in the brake pipe is restored. An operating lever and a cylinder connected thereto are provided for selectively rotating the holding pawl. Valve is provided for supplying air pressure to and evacuating it from the cylinder. Release mechanism is provided for manually releasing the braking force. The parking brake assembly is employed with either truck-mounted or carbody-mounted braking system. | 10-27-2011 |
| 20110259681 | PARKING BRAKE ASSEMBLY FOR RAILWAY VEHICLE BRAKE SYSTEM - A parking brake assembly for a railway car includes a ratchet mounted for rotation on a threaded piston rod of a brake actuator and a holding pawl engageable with the ratchet for maintaining a push rod of the parking brake assembly to apply braking force when the air pressure is lost in the brake pipe and releasing the push rod to accordingly release the braking force when the supply of air pressure in the brake pipe is restored. An operating lever and a cylinder connected thereto are provided for selectively rotating the holding pawl. Valve is provided for supplying air pressure to and evacuating it from the cylinder. Release mechanism is provided for manually releasing the braking force. The parking brake assembly is employed with either truck-mounted or carbody-mounted braking system. | 10-27-2011 |
| 20110266101 | PARKING BRAKE ASSEMBLY FOR RAILWAY VEHICLE BRAKE SYSTEM - A parking brake assembly for a railway car includes a ratchet mounted for rotation on a threaded piston rod of a brake actuator and a holding pawl engageable with the ratchet for maintaining a push rod of the parking brake assembly to apply braking force when the air pressure is lost in the brake pipe and releasing the push rod to accordingly release the braking force when the supply of air pressure in the brake pipe is restored. An operating lever and a cylinder connected thereto are provided for selectively rotating the holding pawl. Valve is provided for supplying air pressure to and evacuating it from the cylinder. Release mechanism is provided for manually releasing the braking force. The parking brake assembly is employed with either truck-mounted or carbody-mounted braking system. | 11-03-2011 |
