Famous Patents
William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5720527 | Continuous highwall mining machine with armless conveyor A continuous highwall mining machine (10) includes a frame (12) and a ground engaging loading shovel (32) that is mounted to extend forwardly from the frame. A cutter (16) for winning aggregate material is mounted to the frame (12) so as to extend above a... | 02/24/1998 |
| 5518353 | Arrangement in an unloading system An arrangement for unloading bulk material (1a) from holds (2a-2e) in a transport vessel (1), comprising a belt conveyor (3a, 3b, 3t) extending in the longitudinal direction of the ship close to the bottom (9) thereof, the belt conveyor supporting incline... | 05/21/1996 |
| 5042240 | Recovery apparatus A recovery apparatus having a frame adapted for earth traversing movement along an elongated sheet bearing a crop to recover the crop; a first conveyor mounted on the frame for receiving the sheet and conveying the sheet therealong; a second conveyor moun... | 08/27/1991 |
| 5000306 | Chain conveyor for loading devices and/or conveying devices In a chain conveyor (6) for loading devices and/or conveying devices, in which engaging pieces (10) are swivelably linked to a chain (9), noting that the engaging pieces (10) are linked to the chains approximately at their longitudinal center and the chai... | 03/19/1991 |
| 4813530 | Conveyor drive for miner A conveyor drive transmission for a secondary conveyor system is disclosed. The secondary conveyor system is designed to feed material cut by a mining machine onto a primary conveyor which would convey mine material to the rear of the machine for discharg... | 03/21/1989 |
| 4784560 | Apparatus for trimming and emptying bulk material An apparatus for trimming and emptying bulk material in a cargo room (2) comprises two rake devices (18, 19) which at one end are connected to the lower end of a cargo lifter in the form of a vertical conveyor (16). The cargo lifter is suspended in a hous... | 11/15/1988 |
| 4588071 | Chain conveyor with diverging interleaved scrapers A load conveyor for a cutting machine comprises two outer, endless chains, and an endless further chain positioned between the two outer chains. Each of the chains carries scrapers. All of the chains are driven, via a common drive drum, by a drive station... | 05/13/1986 |
| 4390312 | Round bale transporter and feeder A spirally wrapped, round bale transporter and feeder comprising a support frame having first and second ends and including a pair of bale-supporting members; an assembly for coupling the frame to a wheeled vehicle; a plurality of wheels coupled to the fr... | 06/28/1983 |
| 4199193 | Underground mining machine having temporary roof support means and roof bolting means associated therewith The mining machine consists of a main frame having a front portion and a rearwardly extending portion, and cutter heads disposed for movement across the front portion for dislodging mineral. A conveyor system is provided which extends across of the front ... | 04/22/1980 |
| 4121724 | Apparatus for removing bulk material from a dump or stockpile Apparatus for progressively removing bulk material from a dump or stockpile having a generally trapezoidal cross-section includes a gantry having a bridging girder extending between a pair of upright end supports. At least one of the supports is movable a... | 10/24/1978 |
| 4037875 | Full face miner A miner especially adapted for high-production mining of low-coal seams (24-36 inches thick) while providing maximum miner safety and complying with applicable federal safety regulations. One or more cutting heads rotatable about the vertical axes are pro... | 07/26/1977 |
