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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 |
| 6955311 | Self-propelled recycling machine, and base unit and base frame of self-propelled recycling machine In a self-propelled recycling machine for receiving recyclable materials and processing the recyclable materials to produce recycled products, the self-propelled recycling machine comprises traveling units 2 disposed side by side in a spaced relation, a base ... | 10/18/2005 |
| 6832851 | Container concrete mixing plant The invention relates to a transportable concrete mixing plant (10) which comprises a plurality or releasably interconnected mixing plant components. Said mixing plant components are contained in a plurality of containers (C1, C2, C3, C | 12/21/2004 |
| 6193403 | Bucket mixer attachment for skid steer vehicle A mixer for particulate materials, such as soil, dirt, sand, concrete, lime, fertilizers, aggregate, and water, hitched to a skid steer motor vehicle has a bucket for accommodating the particulate materials. A pair of augers having opposite spiral flights... | 02/27/2001 |
| 5067818 | Cement mixer system A cement mixer is provided for use with a pick-up truck, generally as a retrofit to an existing truck. The cement mixer can sit on the truck bed, having pivot mounts that engage the tailgate brackets, to facilitate dumping of a mix from the mixer. The sys... | 11/26/1991 |
| 4913554 | Lifting apparatus A lifting apparatus includes a load support device for engaging and supporting a load as the load support device and the load are moved between a lowered position and a raised position relative to a base. A pair of spaced lifting arms are connected at fir... | 04/03/1990 |
| 4850701 | Skid-mounted self-leveling mixer apparatus A self-leveling mixing apparatus includes a transportable skid frame. A mixing tub is supported from the frame in a manner such that the tube is movable between first and second positions relative to the frame. The tube has a tub fluid outlet defined in a... | 07/25/1989 |
| 4810097 | Dispensing apparatus A dispensing apparatus is located in the rear of a tip truck body. When the tipping body of the truck is inclined gravity causes bulk material held in the tipping body at either side of a partition to feed augers. The dispensing apparatus includes at leas... | 03/07/1989 |
| 4692028 | Sealant melter/applicator with automatic load switching system A sealant melter/applicator includes a sealant melting chamber, an internal combustion engine having a rotating power output shaft and an hydraulic pump which converts the rotary motion of the engine power output shaft into a flow of pressurized hydraulic... | 09/08/1987 |
| 4575254 | Transit mixer support pedestal mounting apparatus A mounting apparatus for a transit mixer support frame and pedestals including flexure joints and rotational joints. The flexure joints allow the front of the front pedestal and the back of the rear pedestal to move both vertically and laterally in respon... | 03/11/1986 |
| 4487507 | Portable waste processing unit A processing apparatus for sludge and liquid waste comprising a wheeled vehicle having a frame, a drum type mixer mounted for rotation on said frame, motive power means including a hydraulic pump, a hydraulic motor for rotating said drum type mixer mounte... | 12/11/1984 |
| 4441821 | Apparatus for increasing the delivery range of a mixing and delivery auger trough A mixing and delivery system for concrete or the like wherein the delivery range of a mixing auger trough is extended by two (2) delivery chutes which can be selectively deployed. The chutes are stored secured to and beneath the trough in end-to-end relat... | 04/10/1984 |
| 4268175 | Tractor mounted self-loading concrete mixing apparatus Tractor mounted mixing apparatus is disclosed including a mounting frame attachable to a three-point tractor hitch, a mixing drum rotatably mounted to the frame and having mechanism for rotatably driving the drum, and a scoop pivotally connected to the su... | 05/19/1981 |
| 4268174 | Concrete mixer A concrete mixer and the like adapted to be attached to the lifting system of a tractor or other vehicle. This mixer comprises a bucket having a cylindrical drum shape, the lateral wall of which is provided with an aperture having a maximum opening of one... | 05/19/1981 |
| 4159180 | Ground fed blender A land vehicle for use as a blender for the mixing of dry, particulate, and liquid materials comprising a chassis having an articulated frame thereon, the articulated frame including a first translatable portion and a second translatable, rotatable portio... | 06/26/1979 |
| 4130364 | Method and portable apparatus for treating asphalt paving material A method and apparatus for treating paving material wherein the asphalt material is tumbled within an inclined drum so that it initially passes through the center portion of a stream of hot gases and is conveyed rearwardly and then is subsequently dropped... | 12/19/1978 |
