The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.
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| Number | Title | Issue Date |
| 6521187 | Dispensing liquid drops onto porous brittle substrates A system for aspirating and ejecting microvolume drops of liquid onto porous sites of a substrate wafer is presented. The system includes a microdispenser employing a piezoelectric transducer attached to a glass capillary, a means for priming and aspirati... | 02/18/2003 |
| 6427869 | Method and apparatus for controlling the discharge of concrete from a concrete hose A concrete hose end insert for controlling the discharge of concrete from a concrete hose, having a base member and clamps for securing the insert to a concrete hose end, and having a vertical insert member for positioning within the interior of a concret... | 08/06/2002 |
| 5958136 | Device for powdering a product A device for powdering a product arranged on a transport, in particular for powdering new strip-shaped or plate-shaped glass by means of at least one application beam overhanging the transport, the application beam having a storage space supplied with a d... | 09/28/1999 |
| 5873533 | Vertical axis metering device for a particulate material dispenser A particulate material dispensing system suitable for metering seed for individual rows of a seed sowing drill. The seed sowing drill having a container which acts as a seed hopper. Positioned beneath the container is a metering device. Below the metering... | 02/23/1999 |
| 5215216 | Water flow responsive soap dispenser A volumetrically variable soap chamber partially collapses in response to an initial increased pressure state imposed by initiation of water flow and a predetermined quantity of liquid soap will be dispensed. The soap chamber is replenished from a source ... | 06/01/1993 |
| 4986450 | Toner cartridge A toner cartridge comprises a cylindrical cartridge body having a toner discharge port formed in a part of a peripheral surface thereof along its longitudinal direction, a pivot shaft disposed at the axis of the body, and a toner pressure feeding member j... | 01/22/1991 |
| 4522296 | Flail auger for semi-liquid manure spreader A flail auger assembly is disclosed which is useful for unloading semi-liquid material from a holding tank mounted on a tractor drawn trailer. A rotatably mounted shaft extends lengthwise through the lower portion of the tank. One end of the shaft penetra... | 06/11/1985 |
| 4442070 | Apparatus for the production of a flowable reaction mixture The present invention relates to an apparatus for the production of a flowable reaction mixture of at least two flowable components which mixture forms a foam or solid material, comprising: (a) storage means for said components; (b) supply lines leading from t... | 04/10/1984 |
| 4397409 | Toner dispensing apparatus Toner dispensing apparatus comprising a toner hopper, the walls of which form an elongated opening from which toner is capable of being dispensed and a dispensing roll to dispense toner from the hopper through the elongated opening into the developer cham... | 08/09/1983 |
| 4279220 | Automatic feeding device An automatic feeding device comprising a storage bin or hopper containing dry fodder, a feed delivery port or aperture at the bottom of the storage bin, a feed delivery mechanism forcing a quantity of feed through the aperture, and a prime mover, such as ... | 07/21/1981 |
| 4264023 | Agricultural dispensing mechanisms Mechanism for dispensing seed or fertilizer for agricultural row crop implements such as seed drills and precision planters. A resilient rotatable roller cooperates with a flat vertical glass dispensing plate to dispense seed or fertilizer from a hopper t... | 04/28/1981 |
| 4259912 | Agricultural dispensing mechanism A mechanism for dispensing seed or fertilizer, etc., for agricultural row crop implements such as seed drills and precision planters, comprises a resilient rotatable roller which cooperates with a flat vertical glass dispensing plate to dispense seed or f... | 04/07/1981 |
| 4078725 | Spray apparatus A hand-operated liquid spray apparatus operates on the air-lift pump principle wherein the air-forcing member and the spray-forming member are one and the same. Such an apparatus requires no nozzles or valves and no permanent pressurization of the sprayed... | 03/14/1978 |
| 4024993 | Toner-replenishing apparatus for use in dry process electrostatic copier Steady flow of dry toner from the discharge outlet of a toner tank is produced by inducing vortex-like motion of toner within the tank to inhibit toner bridging. A rotating brush associated with the discharge outlet has a rim in grazing contact with an ed... | 05/24/1977 |
| 4022031 | Method for producing frozen confection A method for producing frozen confections such as ice cream, or the like, wherein liquid mix is delivered from a storage tank through a freezing chamber to a draw-off valve from which the frozen mix is dispensed to cones or cups. The method is characteriz... | 05/10/1977 |
| 4000833 | Toner dispensing apparatus A toner dispensing apparatus for electrophotographic copiers. The apparatus includes a toner dispenser portion positioned within the developer housing of the copier, and a toner supply portion positioned exteriorly of the developer housing. The two portio... | 01/04/1977 |