Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7997786 | Heating and cooling cup A heating and cooling cup includes a cup body, a stirring device, a heating and cooling chip, and a heat sink module. A heat conductive block is disposed under the cup body, the heat conductive block abuts against the heating and cooling chip, the stirring device ha... | 08/16/2011 |
| 7784995 | Vehicle mounted concrete mixing drum and method of manufacture thereof A method of manufacture of a vehicle mounted rotary concrete mixing drum of the type having an opening at one end for receiving and/or discharge of concrete therefrom and at the other end, means for engaging a drive assembly so as to rotate the drum for mixing or di... | 08/31/2010 |
| 7370565 | Apparatus for mixing explosive materials and for filling of ordnance Described herein is apparatus for the mixing of explosive materials utilising a static mixer (26) for combining pre-mix explosive material and hardener prior to introducing the combined mixture into any ordnance (38). ... | 05/13/2008 |
| 7144170 | Dual component dispensing and mixing systems for marine and military paints A device for applying a coating comprising a multi-component cartridge comprising at least two cylindrical cartridges, each cylindrical cartridge comprising an aperture and an open filling end that is disposed opposite the aperture and that is slidingly sealed by a ... | 12/05/2006 |
| 7064314 | Concrete-dispensing counter for ready mix trucks A concrete-dispensing counter for ready mix trucks for measuring the volume of concrete discharged by a ready mix concrete truck. The concrete-dispensing counter for ready mix trucks includes a prime mover having a drum being rotatably mounted thereupon and also hav... | 06/20/2006 |
| 7048430 | Hydraulic concrete mixer A hydraulic concrete mixer includes a drum (110) having a mixing blade (120) attached to an interior thereof, a frame (130) supporting the drum, an engine (140) mounted on the frame, and a drive train (150) extending through at lea... | 05/23/2006 |
| 6942375 | Vehicle accessory power arrangement A vehicle with one or more accessory systems that are capable of drawing power from a flow of pressurized hydraulic fluid and utilizing that power toward their intended functionality. The vehicle has a powertrain including a primary internal combustion engine and dr... | 09/13/2005 |
| 5683177 | Cylindrical high-capacity transport mixer for bulk material and liquids A transporter-mixer for bulk-material/liquid mixtures has a cylindrical transport container mounted on a support frame with its longitudinal axis approximately horizontal and a controllable container-drive unit whose direction is reversible as a function ... | 11/04/1997 |
| 5605398 | Flap for cement truck back A rigid cover attached to the chute of a cement truck can prevent the accidental discharge of cement residue from the chute of the cement truck while the truck is moving. The use of a rigid cover prevents the bending of the cover under the weight of the c... | 02/25/1997 |
| 5492402 | Combination trailer and self propelled vehicle The present invention is a combination trailer and self propelled vehicle which combines the maximum gradeability of all wheel drive with the ability to be efficiently and conveniently towed by conventional means at maximum permissible highway speeds. As ... | 02/20/1996 |
| 5380085 | Concrete mixer with reciprocating discharge chute A horizontal drum concrete batch mixer comprising a cylindrical mixer drum which may be rotated in a mixing direction or a discharge direction. The interior of the drum has mixing blades provided thereon for mixing the concrete when the drum is rotated in... | 01/10/1995 |
| 5232282 | Food waste mixing and heat treating vehicle, hog lot and method of raising and feeding hogs A food waste mixing and heat treating vehicle used in feeding hogs has a wheeled chassis. A mixing drum is rotatably mounted on the chassis having an inner wall forming a mixing and heating cavity and having an opening into the cavity. Means are provided ... | 08/03/1993 |
| 5039226 | Portable concrete mixer A trailer for transporting and mixing concrete or similar products, comprising a wheeled frame and a mixing drum mounted to the wheeled frame for rotation in a first direction for mixing concrete and in a second direction for discharging concrete from the... | 08/13/1991 |
| 4846581 | Rear discharge-two way concrete mixer A rear discharge concrete mixer vehicle having a chassis comprising a cab for the vehicle operator; control means in the cab for operation of the vehicle; a rotary drum on the vehicle chassis; a discharge chute associated with the rotary drum; and auxilia... | 07/11/1989 |
| 4792234 | Portable concrete batch plant The invention comprises a mobile concrete batch plant transportable by highway as a single unit. A cement storage hopper, a cement weigh hopper, and an aggregate weigh hopper are mounted on a standard trailer bed. The cement hopper is loaded to the desire... | 12/20/1988 |
| 4730934 | Mobile mixer, preferably having counterrotational emptying, for building materials, in particular concrete In a mobile mixer, preferably having counterrotational emptying, for building materials, in particular concrete, in a mixing drum (1) which, on its inner wall (9), has one or more flat elevators (11, 12) following a helix and extending from the closed dru... | 03/15/1988 |
| 4506983 | Bulk material storage and mixing apparatus A portable dry bulk material storage and mixing unit comprising a generally cylindrical drum mounted on a frame for rotation about a generally horizontal axis and having a conical discharge nozzle with a cylindrical discharge opening at one end thereof. T... | 03/26/1985 |
| 4462690 | Apparatus for the production of applicable coating _material for coating milled-off or peeled-off road surfaces The invention relates to a process and an apparatus for the production of applicable coating material for coating road surfaces, by which the old coating material together with aggregates and/or new coating material is mixed in a mixer device provided on ... | 07/31/1984 |
| 4403865 | Device in connection with mixing apparatuses A mixing apparatus having a rotatable drum with a horizontal axis of rotation and an input and a discharge end. The drum supports a number of first mixing wings which upon rotation of the drum in the mixing direction convey the material to be mixed toward... | 09/13/1983 |
| 4382683 | Mixing machines In a rotary drum mixing machine of the kind in which the drum is rotated in opposite directions to mix and eject its contents respectively by a prime-mover operating through driving and driven means on a prime-mover driven shaft and the closed end of the ... | 05/10/1983 |
| 4291503 | Workpiece treating barrel A barrel apparatus for use in treating workpieces with grinding media, comprising a novel rotary barrel provided on its inner peripheral wall with a spiral flight extending lengthwise of the barrel and one or more ancillary flights extending straight or i... | 09/29/1981 |
| 4199262 | Bulk explosive mixing and delivery apparatus A mobile mixing and delivery apparatus for bulk slurry explosive compositions is provided. The apparatus comprises a vehicle body upon which is mounted a rotatable drum mixer. Explosive ingredients are fed into the mixer, mixed and then delivered close to... | 04/22/1980 |
| 4188127 | Mixing blades of concrete mixing drums A rotary concrete mixing drum which has a throat area leading to a mixing chamber is provided with a mixing blade which includes a leg portion projecting inwardly from the inner wall thereof and a discharge lip portion and a mixing lip portion. The mixing... | 02/12/1980 |
| 4187028 | Mixing blade for concrete mixer An improved and more rapid mixing of concrete is achieved in a rotary concrete mixing drum according to the present invention by the simple expedient of providing passages which open through the body of the mixing blade which permit concrete flow therethr... | 02/05/1980 |
| 4154534 | Transit concrete mixer adapted for loading and discharging aggregates of a wide range of slump value A transit concrete mixer includes a drum which is mounted for discharge either forwardly or reversely of the vehicle and has two sets of flights for two-stage concrete loading and discharging. One set of flights is particularly useful for carrying the agg... | 05/15/1979 |
| 4097925 | Process and apparatus for mixing and transporting cement By a combination of a slump indicator calibrated for each of the several particular trucks in a system of concrete mixer transport trucks and a particularly readily locatable dynamically balanced emergency power unit, the contents of the drum or mixer of ... | 06/27/1978 |
