Assignee: Loram Maintenance of Way, Inc.

Location: Hamel, MN
No. of patents: 28

Number	Title	Issue Date
7987620	Rotary undercutter for rail line maintenance A railroad ballast removal system capable of removing ballast material from below a rail line. The railroad ballast removal system includes at least one rotary cutting wheel having a plurality of individually replaceable cutting attachments positioned about a perime...	08/02/2011
7895950	Long rail pick-up and delivery system A long rail pick-up and delivery system providing increased efficiency and safety. The long rail pick-up and delivery system can include a power car, a rail train, a loading car, an unloading car, a transition car and two independent gantries. The dual gantry design...	03/01/2011
7845098	Rotary undercutter for rail line maintenance A railroad ballast removal system capable of removing ballast material from below a rail line. The railroad ballast removal system includes at least one rotary cutting wheel having a plurality of individually replaceable cutting attachments positioned about a perime...	12/07/2010
7350467	Long rail pick-up and delivery system A long rail pick-up and delivery system providing increased efficiency and safety. The long rail pick-up and delivery system can include a power car, a rail train, a loading car, an unloading car, a transition car and two independent gantries. The dual gantry design...	04/01/2008
7156723	Method and apparatus for non-interrupted grinding of railroad crossing and main line track A system for the grinding of unencumbered and encumbered sections of rail includes a locomotive that pulls a first and a second grinding module. The first grinding module is movable between a first and a second position. In the first position, the first grinding mod...	01/02/2007
6823614	Rail bounded snow blower equipment A snow removal apparatus having a frame, a first snow removal device, and a second snow removal device. The first snow removal device is operably mounted to the frame for removing snow from a front end of the frame. The second snow removal device is operably mounted...	11/30/2004
6769365	System and method for on site maintenance of railcar wheels The on site maintenance system for metal railcar wheels enables the user to establish a portable, stationary guide rail system about a remotely located railcar and then through use of a traversing guide rail system and lathe assembly grind the many wheels of a railc...	08/03/2004
6719616	Rail grinding apparatus A rail grinding apparatus for use in grinding rails. The rail grinding apparatus includes a transport vehicle and a rail grinding unit. The transport vehicle is capable of moving along the rails or a conventional road. The rail grinding unit is capable of grinding a...	04/13/2004
6033291	Offset rail grinding A grinding stone for grinding a railhead surface of a rail includes abrasive material. The abrasive material has a first side surface and an opposed second side surface. The first and second sides surfaces are joined by a circumferential surface. The circ...	03/07/2000
5793492	Wheel profile sensor The present invention is a method and measurement apparatus for measuring the profile of a railway wheel while the railway wheel is in rolling motion on a rail. The railway wheel has a gage side and a field side and a circumferentially defined running sur...	08/11/1998
5417165	Self-clearing discharge door assembly for railroad ballast hopper car A railroad hopper ballast discharge door assembly includes pliant side panels along a discharge gate opening. The pliant side panels are strong enough to retain the ballast within the hopper when the door is closed, yet are flexible enough to yield when b...	05/23/1995
5347933	Railway ballast cleaning machine with integrated hopper car The disclosed shoulder ballast cleaning machine with integrated hopper car is particularly designed to provide for the temporary conveyance and storage of clean ballast. The shoulder ballast cleaning machine digs up the stone ballast of the railroad bed, ...	09/20/1994
5339692	Ultrasonic rail web centerline detector An ultrasonic rail web centerline detector locates the web centerline (18) of a longitudinal rail (12) having a head (80), a base (82), and a web therebetween. The detector includes an ultrasound sensor (14) acoustically coupled to the head (80) of the ra...	08/23/1994
5293718	Tangential grinding machine particularly for railway rails A tangential grinding machine for railway rails has a rotating member, a plurality of abrasive sectors mounted on supports radially movable on the rotating member, elements which radially move the supports in order to move the abrasive sectors outwards by...	03/15/1994
5284097	Ballast distribution, regulation and reclaiming railroad maintenance device A railroad maintenance device distributes, regulates and reclaims ballast along a railway road bed. The device includes one or more hopper cars for transporting and depositing ballast, a regulating car including a track regulator, a shoulder regulator, an...	02/08/1994
5172638	Dust suppression system for railroad track ballast cleaning apparatus A dust suppression system is particularly designed for the control of dust generated by a self-propelled, on-site, shoulder ballast cleaning machine. The shoulder ballast cleaning machine scoops up the stone ballast of a railroad track bed, separates the ...	12/22/1992
5140776	Apparatus and method for measuring and maintaining the profile of a railroad track rail A strobe light, oriented directly over a railroad track rail and at a 45° angle to the horizontal, projects a light line across the rail. A pair of cameras oriented directly over the rail view the light image on the rail. The light lines reflected from t...	08/25/1992
5131798	Railroad car conveyor Material handling apparatus for conveying loose material into an elongated container such as a railroad car. An endless belt conveyor is mounted above and extends the full length of the container. A plurality of equally-spaced, individually, selectively o...	07/21/1992
5111624	Method and apparatus for limiting the dispersion of rail grinding machine spark and dust residue A fan is passively, detachably carried by the grinding head assembly of a railroad track rail grinding machine. The fan plate is oriented above the grinding stone and rotates with the grinding stone during grinding operations. A downward draft of air is i...	05/12/1992
4862647	Rail grinding machine A railroad mounted grinding machine for maintaining the railhead profile of railroad track rails. A plurality of grinding modules are mounted on an undercarriage. The undercarriage is shiftably carried, by a track engaging platform, for side to side posit...	09/05/1989
4829723	Rail grinding machine A rail grinding machine especially designed for grinding railroad track rails at railroad track switches and road crossings. The grinding machine includes an articulated grinding module supporting undercarriage suspended from the grinding machine main fra...	05/16/1989
4713898	Railroad mounted trench digger A trench digger for digging and maintaining drainage ditches along railway road beds. The trench digger includes a compact rotary drum cutting head mounted on a boom that can be swung about a boom base pivot axis to position the cutting head to either sid...	12/22/1987
4693039	Grinding head assembly A grinding head assembly especially designed for heavy duty grinding applications, such as maintenance of railroad track rails, is disclosed. The grinding head assembly hereof broadly includes an abrasive grinding stone, a backing plate for the stone havi...	09/15/1987
4622781	Rail grinding machine The angle through which the grinding modules of a railroad track rail grinding machine can be tilted is increased by pivotally mounting the grinding modules on a carriage which is in turn pivotally mounted relative to the rail grinding machine's supportin...	11/18/1986
4579060	Tie exchanger with compound clamping head Railroad right-of-way maintenance equipment and method for removing old ties from beneath railroad rails and replacing them with new ties, characterized by a compound clamping head. The compound clamping head simultaneously grips a new tie and an old tie ...	04/01/1986
4507897	Grinding head assembly A grinding head assembly for use in maintaining railroad tracks. The invention is typically used in longitudinally spaced series to grind the surface of the rails to remove corrugations, to restore a smooth regular travel surface. The grinding head assemb...	04/02/1985
4464995	Method and apparatus for removing railway ties A method and apparatus for removing defective railroad ties from the right-of-way in one piece and without disturbing the elevation, cross-level and line, of a track system. The method is carried out by first removing the tie plates from an individual tie...	08/14/1984
4250812	Undertrack fabric applicator A pair of spaced apart arms disposed on the side of a railway maintenance machine, the arms extending outwardly and carrying vertically positioned sleeves at their outer ends. Bars are slidably held in the sleeves for mounting of a fabric roll on their up...	02/17/1981

PatentStorm

Bizarre Patents

PatentStorm News

Assignee: Loram Maintenance of Way, Inc.