Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7096796 | Brake handle with integral position sensing switch A brake handle for a train or other vehicle has a grip that may be grasped by a human operator, a shaft that is fastened to the grip, a hub that is fastened to the shaft and is rotated by the shaft, a mounting block that is supported by the hub for rotating movement... | 08/29/2006 |
| 7093694 | Release hold mechanism with gravity weighted indicator flag The present invention discloses a hand brake mechanism having a gravity based release hold mechanism with a visual indicator to prevent unwanted application of the railcar brakes and indicate such release hold condition. The release hold mechanism comprises a gravit... | 08/22/2006 |
| 6990908 | Transportation subassembly for materials destabilized in presence of destabilizing contaminants A transportation subassembly is provided for transporting a material that is destabilized in the presence of a destabilizing contaminant. The subassembly has a structural body having a cavity constructed and arranged to receive the material to be stored, a breather ... | 01/31/2006 |
| 6323441 | Ultrasonic distance measuring system for monitoring railroad car loads An ultrasonic distance measuring system for monitoring railroad car loads. The system includes an ultrasonic transducer, a pulse generation and detection circuit and a measurement circuit. The transducer produces a transmitted ultrasonic pulse beam to be ... | 11/27/2001 |
| 6059075 | Railroad freight car including pneumatic brake system module A fully protective multi-unit railroad freight car for carrying motor vehicles on two or three levels with the lowest level being in a cargo well between a pair of deep side sills. A pair of vehicle-carrying decks are adjustable in height and are counterb... | 05/09/2000 |
| 5784968 | Locomotive top deck cover support bracket A locomotive engine top deck cover support apparatus for supporting the top deck cover of a locomotive engine in a selective position, has a ratchet member with a plurality of radially disposed ratchet teeth and a support arm pivotal between a fully raise... | 07/28/1998 |
| 5307744 | Magnetic skirt product protection assembly for transporting on railroad cars A magnetic skirt assembly is provided which is used as a metallic particle and grit collector on a railroad car to protect transported products. The magnetic skirt (20) includes a supporting frame structure (21) and a magnetic material (36) operatively at... | 05/03/1994 |
| 5224428 | Strengthened structure for a steering arm assembly having a compound radial fillet at juncture A steering arm assembly for a railway truck has compound fillets between the cross-beam or body portion and each sidearm to provide increased flexural strength to the assembly while maintaining the clearance between the steering arm and truck components.... | 07/06/1993 |
| 5216958 | Brake arrangement for a railroad gondola car with tie rod running inside center sill A brake arrangement for a railroad car having a semi-closed box beam center sill and including a first aperture communicating with the interior of the center sill, a second aperture communicating with the interior of the center sill, a tie rod extending b... | 06/08/1993 |
| 5025734 | Locomotive equipment carriage An equipment carriage for locomotive air brake valve components including a box-like frame having a rear section separating parallel end sections. The frame is arranged to guidably receive, through an open front section, a group of one or more unitized va... | 06/25/1991 |
| 4951479 | Refrigeration system An improved refrigeration system is provided for use in a rail car or the like to refrigerate perishable items such as produce. The refrigeration system includes a plurality of modular ceiling panels mounted near the roof of a rail car or the like to defi... | 08/28/1990 |
| 4811818 | Transit rail lubricant applicator An applicator for mounting a block of solid lubricant to deposit a thin film of lubricant on the flange of a transit rail car wheel. The applicator (10) includes a bracket (12) adapted to mount the applicator to an unsprung portion of a transit rail car. ... | 03/14/1989 |
| 4801927 | Method and apparatus for indicating the dynamic instability of railway or tramway rolling stock A method is described for indicating the dynamic instability of railway or tramway rolling stock. The method essentially consists in detecting, by means of at least one accelerometer sensor, the acceleration of the wheel arrangement of the rolling stock i... | 01/31/1989 |
| 4794863 | Motive structure for transporting workpieces An improved motive structure for transporting workpieces (wafers, chip, packages, etc.) between processing stations or tools in a manufacturing operation. The structure includes a first circular crankshaft assembly connected to center axles disposed at ri... | 01/03/1989 |
| 4766819 | Saddle frame for passive steering single-axle truck for a railway freight car An improved saddle frame for a passive steering single-axle truck for a railway freight car that allows for unobstructed passage of infrared rays from the wheel bearings, so that they may be sensed by a hot-box detector mounted on a rail bed. The saddle f... | 08/30/1988 |
| 4753174 | Railway vehicle bolster with integral and brake system car reservoir A railway vehicle bolster having an air brake system air reservoir formed integrally in a cavity defined by a top web and side walls of said bolster by enclosing the cavity with end walls and a bottom wall. Air inlet and outlet means provide communication... | 06/28/1988 |
| 4562633 | Railway box car conversion to highway trailer-carrying flatcar and method of accomplishing it A railway flatcar for carrying a highway trailer, the flatcar having been converted from a conventional railway box car. The sides, ends and roof of a conventional box car are cut and removed therefrom substantially at the floor line. The side sill assemb... | 01/07/1986 |
| 4407203 | Railroad tank car lift lug A lift lug for receiving and securing a lifting device to a railroad tank car for re-railing the tank car. The lift lug includes a bolster pad mounted adjacent an end of the tank car and a vertically disposed bolster web, the bolster web having a substant... | 10/04/1983 |
| 4329927 | Railway car roping staple A roping staple (and lifting lug) especially for securing to the side sill of a railroad car. The roping staple is uniquely provided with the strength and accessibility required for modern day railroading and yet is suitable for economical construction.... | 05/18/1982 |
| 4223612 | Lifting device for railway tank car In accordance with the present invention, a lifting pocket is provided in a tank car bolster bottom cover plate or other tank car support plate. The support plate includes an opening for receiving a U-shaped lifting hook having a first leg having an eye f... | 09/23/1980 |
| 4180228 | Pipe clamp A vibration accommodating clamp for securing pipes which carry brake lines and the like to the underframes of railway cars. The clamp is initially mounted by placing a U-shaped bolt over the pipe and through holes in a mounting bracket and permanently sec... | 12/25/1979 |
| 4166520 | Protective elastomeric brake rod sealing boot In a railway freight car an elastomeric boot is attached to the entrance and/or exit of a hollow sill or hollow structural member through which a brake rod passes. The brake rod passes through a brake rod opening in the boot in entering and/or leaving the... | 09/04/1979 |
| 4164906 | Schnabel car bogie An improved multiple span bolster or "schnabel" car arrangement in which a first arrangement is provided for inhibiting lifting of the lower inboard span bolster in response to compressive forces when the schnabel car halves are being transported empty an... | 08/21/1979 |
| 4143615 | Acceleration indicator An acceleration indicator including an anti-tampering arrangement adapted to be secured to a railway freight car for detecting pre-selected destructive impacts on the the car. The indicator includes a generally hat-shaped casing having a normally obscured... | 03/13/1979 |
| 4079818 | Brake rod support arrangement for railroad cars A support arrangement for brake rods of railroad car brake rigging comprising a U-shaped support member suspended from the underside of the car, a slotted sleeve snap fitted on the brake rod and located to rest on the bight portion of the support member, ... | 03/21/1978 |
| 4013017 | Remote railway container locking system A system for issuing instructional signals to individual cars of a train for causing actuation of a device such as a container locking device of the individual car. A plurality of instructional signal lines and a plurality of feedback lines extend through... | 03/22/1977 |
| 3995720 | Truck damping A method of damping relative movement between components of a railway car and more particularly a method of damping such movement which is operable only when the railway car is normally operating in a loaded condition.... | 12/07/1976 |
