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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7997208 | Angle line transfer for overhead conveyors A lateral transfer apparatus for an overhead conveyor comprises generally horizontally extending, side-by-side load tracks for receiving load-bearing trolleys for movement along a first track, and for movement along a second track. A transfer shuttle unit has a norm... | 08/16/2011 |
| 7987794 | Side shift raise climbing system A side-shift raise climbing system is provided that utilizes a side-cut excavated into the wall of the access drift for a raise in a mine. A transfer section is incorporated into the existing length of rail servicing the raise. The transfer section includes a latera... | 08/02/2011 |
| 7735425 | Conveyor system with a conveyor carriage with axially aligned track rollers A conveyor system (10) includes a conveyor course (12), which has a curved portion and two tracks (22, 24) located one above the other, and a conveyor carriage (14); each of the tracks (22, 24) is assigned at least one horizontal t... | 06/15/2010 |
| 7409913 | Single-axis programmable positioning device A single-axis programmable positioning device for positioning a work piece in a work area comprising. The device includes a rail with a pair of parallel channels, a trolley with bearing that ride in the rails, a work piece stop mounted to the trolley, a motor assemb... | 08/12/2008 |
| 7392747 | Rail guide for a suspended and guided sliding component A rail guide having first and second guiding rails disposed in a mirror-inverted relationship with regard to one another. At least one pair of spaced leading and following carriages are displaceably mounted to the guiding rails so as to engage and transport a slidin... | 07/01/2008 |
| 7350247 | Hoisting device The present invention concerns a hoisting device including a hoisting module which is replaceably connected with a coupling arrangement for a trolley which is mounted in a ceiling-mounted rail arrangement, where the coupling arrangement is provided in two sections, ... | 04/01/2008 |
| 7296521 | Conveyance apparatus using movable body A conveyance apparatus using movable bodies, in which a plurality of lateral travel rail members capable of supporting and guiding guided devices situated on a main rail are provided to the side of a prescribed region of the fixed path, in such a manner that a frame... | 11/20/2007 |
| 7283897 | Method and system for compensating for wheel wear on a train A method and system for compensating for wheel wear uses position and/or speed information from an independent positioning system to measure some distance over which the train has traveled. Wheel rotation information is also collected over the distance. The wheel ro... | 10/16/2007 |
| 7205730 | Article transport vehicle The invention provides an article transport vehicle that includes: a vehicle body; a first wheel that supports the vehicle body; a second wheel that is disposed spaced apart from the first wheel in a fore-and-aft direction, and that supports the vehicle body; a firs... | 04/17/2007 |
| 7185744 | Double wheel chock frame A roller system for moving a load a predetermined distance includes a chock frame having a pair of spaced chocks connected between a pair of rigid siderails and a freely moveable roller unit. The roller unit includes a plurality of rollers and is positioned between ... | 03/06/2007 |
| 7137769 | Workpiece feeding apparatus A plurality of working blocks (A, B) are connected by rails (18). A branched transporting mechanism (100) is disposed at the intersections of the rails (18). A transportation vehicle (300) of non-self-propelled type moves on the rails ( | 11/21/2006 |
| 7107911 | Overhead transport apparatus An overhead transport apparatus includes a guide rail unit having a main rail having a pair of rail members, and a branch rail branching off the main rail; an auxiliary guide rail provided along the branch rail at an upper part of a branching region in which the bra... | 09/19/2006 |
| 7093543 | Carriage type conveyor A friction-drive carriage type conveyor includes a carriage 1 for running in a running direction along a horizontal track including a first track section and a second track section, which crosses a passage 26. Friction drivers 29 and 30 a... | 08/22/2006 |
| 7089868 | Conveyance apparatus using movable body A conveyance apparatus using movable bodies, in which a plurality of lateral travel rail members capable of supporting and guiding guided devices situated on a main rail are provided to the side of a prescribed region of the fixed path, in such a manner that a frame... | 08/15/2006 |
| 6935244 | Transport system A transport system has at least one track, preferably hung on supports or hanging from cables, on which transport cars may travel, by at east one trolley. Several running wheels are provided in the trolley and the trolley may be actively rotated about the axis of th... | 08/30/2005 |
| 6931996 | Conveyance system A pair of rail members have upward wheel supporting surfaces and inward roller guide surfaces, respectively. A fixed path includes linear path portions and a branching-and-joining path portion. Linear-side guide members extending along the linear path portions and a... | 08/23/2005 |
| 6829999 | Towing system for sorting machines A device for towing a train of carriages of a sorting machine includes a pair of wheels driven by respective motors, which wheels engage a blade arranged below the carriages. Each towing wheel is movable toward and away from the blade relative to its respective moto... | 12/14/2004 |
| 6708622 | Rail mounted patient lift A rail mounted patient lift comprises a ceiling mountable rail 10, a carriage 16 mounted for displacement along the rail, a flexible elongate support element and power operated lifting means for extending and retracting the support element relative to ... | 03/23/2004 |
| 6672466 | Transportation systems and methods A transportation system for transporting a load into and out of a serviced area. The transportation system comprises near and far support lines and a cross support line suspended from the near and far support lines. A trolley assembly traverses the cross ... | 01/06/2004 |
| 6655297 | Transfer system using movable bodies In a transfer system using movable bodies supported and guided by a rail through a plurality of guided devices so that they are capable of moving in a given path, when a movable body taken out from the given path is transferred to a separate given path or... | 12/02/2003 |
| 6629502 | Conveyance system A pair of rail members have upward wheel supporting surfaces and inward roller guide surfaces, respectively. A fixed path includes linear path portions and a branching-and-joining path portion. Linear-side guide members extending along the linear path por... | 10/07/2003 |
| 6581525 | Method and apparatus for transporting and steering a load A load-carrying transport apparatus for moving a heavy load, such as an oil drilling rig, over a surface includes a substructure for carrying the load, a track member positioned on the surface adjacent the substructure and a plurality of lift assemblies m... | 06/24/2003 |
| 6457418 | Conveyor system with an overhead load carrier The invention relates to an overhead conveyor system which includes a rail, at least one carriage which is provided with wheels and which is adapted to run along the rail and support a load suspended from the carriage, a rotatable drive shaft which extend... | 10/01/2002 |
| 6354224 | Conveyor system switch using tubular linear induction motor A conveyor switch for a conveyor track comprising a tubular linear induction motor as the switch drive. A switch tongue is adapted to be pivoted between first and second positions on the conveyor track and has a driving arm extending from one end thereof.... | 03/12/2002 |
| 6332406 | Transfer system using segmented intermediate section A system (1) for transferring a movable load (2) for an installation (3) for conveying the load (2), and to transfer the load (2) from an arrival track (8) where the load (2) is conveyed along an entry conveying path (C), to at least first (9) and second ... | 12/25/2001 |
| 6220173 | Trolley for rail tracks that are branched by means of switch points The invention concerns a trolley for rail tracks (3) that are branched by means of switch points. To avoid a switch point jam, while simultaneously saving power and maintenance effort, the trolley is equipped with moveable hooks and the switch points are ... | 04/24/2001 |
| 6202566 | High-speed high-capacity transportation system A high-speed high-capacity transportation system is composed of an elevated inverted U-shaped electrified guideway that provides traction and capture surfaces for wheeled motive modules that ride within. Payloads are suspended below the motive unit using ... | 03/20/2001 |
| 5829356 | Switching device for use in suspended conveyors Suspended conveyor systems frequently employ threaded spindles as the drive mechanism to transport trolleys within a track. The spindle cooperates with drive blocks positioned adjacent to wheels on the trolleys. To facilitate switching and turning of the ... | 11/03/1998 |
| 5806434 | Installation for the sorting of individually conveyed objects A suspension conveyor and sorting installation for the sequential sorting of individually conveyed objects. The installation includes two parallel conveyor paths arranged side by side and driven in opposite directions. Independent roller devices carry obj... | 09/15/1998 |
| 5794534 | Sorting installation for sorting individually conveyed objects A suspension conveyor comprises two conveyor circuits which circulate in opposite directions. The circuits are arranged on opposite sides of an additional conveyor path, where the conveying directions of the path and circuits are the same at their point o... | 08/18/1998 |
| 5784965 | Interlock mechanism for an overhead trackway system An interlock mechanism connects a movable trackway end-to-end to another trackway to allow rolling transfer of a crane trolley. The bridging trackway assembly is mounted on the movable trackway to be vertically movable to bridge a gap between the trackway... | 07/28/1998 |
| 5697301 | Suspension type conveyor means A suspension type conveyor device including conveyor paths for conveyed carrier members conveyed in suspended fashion, and a constructionally simple and operationally reliable switch for transferring the conveyed carrier members from at least two conveyor... | 12/16/1997 |
| 5570637 | Garage for a continuous cable railway A garage for storing vehicles of a continuous cable railway system. The garage has a plurality of side tracks arranged parallel or substantially parallel to one another to form preferably a rectangular shape. The garage is loaded with vehicles from the st... | 11/05/1996 |
| 5299506 | Guide apparatus for transportation system having differing in height rail joints to reduce noise and vibration during vertical travel A pair of vertical guide rails of a workpiece transporting system are comprised of upper and lower rail portions, the upper rail portions being movable into axial alignment with the lower rail portions, the upper and lower rail portions being supported fr... | 04/05/1994 |
| 5154123 | Rail conveyor and rail switches therefore Diversion-type switches and cross-type switches are provided for inclusion in suspended rail conveyor arrangements to form a rail conveyor system. Each of said switches includes at least one shiftable rail section movable between a first position of coope... | 10/13/1992 |
| 5115745 | Power transmitting assembly for reciprocatably moving a shuttle cart An article transporting wheeled cart is reciprocatably moved along a pair of transversely spaced rails by a power transmitting unit detachably mounted between and below the rails and comprising a pair of trolley tracks secured to the upstanding legs of tr... | 05/26/1992 |
| 5065678 | Conveyor system with transverse pusher to transfer load carrier between seperate conveying paths A conveyor system having at least two conveyor tracks for moving load carrying units to different locations within a facility in which the conveyor system as installed, includes a device for selectively engaging and disengaging the load carrying units to ... | 11/19/1991 |
| 5048426 | Integrated conveyor system with transfer of trollies A conveyor system includes a power and free section transporting product carriers on power and free type trolleys and a monorail section transporting utility carriers about a fixed loop. The monorail system is connected to the power and free section to re... | 09/17/1991 |
| 5016541 | Greenhouse transport system A greenhouse transport system for moving plants and plant trays through a greenhouse comprising a cart including a carriage assembly having at least one roller extending upwardly from the cart, an overhead track assembly including at least one track chann... | 05/21/1991 |
| 5005488 | Method for the transfer of an overhead conveyor carriage from one track onto another and an overhead conveyor system A device for the transfer of an overhead conveyor carriage (1) from one track (4) onto another track (4A) in an overhead conveyor system. The transfer takes place by altering the height positions of the wheels in relation to the track (4). An overhead con... | 04/09/1991 |
