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Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| 4542469 | Programmable demand register with two way communication through an optical port and external reading devices associated therewith A Programmable Demand Register (PDR™) which has a multi-function externally programmable time based measuring system is disclosed. An optical communication port is provided for bidirectional communication of data, said meter being capable of recordation... | 09/17/1985 |
| 4514686 | Power transducer A Power Transducer is disclosed, such as a watt-watthour Transducer, having a dual multiplier circuit receiving inputs from a power source to be monitored and a triangle wave generator. The circuit includes first and second transformers which separately r... | 04/30/1985 |
| 4500230 | Pneumatic gate for railway hopper cars A pneumatic gate for railway hopper cars which includes a non-tubular valve member deployed above a gate discharge tunnel, with said valve member being actuated by rotation about a bearing shaft which is disposed along an axis parallel with the axis of th... | 02/19/1985 |
| 4478369 | Apparatus for spreading granular material Granular spreader apparatus for easy attachment to, and detachment from, a truck equipped with a hopper bed, including dual troughs that each house a continuous conveyor belt that overlies a slotted trough which permits granular material of dissimiliar si... | 10/23/1984 |
| 4461219 | Single lever hatch cover A hatch cover opening and closing assembly which includes a hat member rockably secured to the hatch at about its center, the hatch cover being pivotably secured to the railway car coaming through the hat member at one end and the other end of the hat mem... | 07/24/1984 |
| 4456280 | Hydraulic trailer steering system A trailer includes a frame having a plurality of bell cranks pivoted to the frame. A plurality of suspension units are pivotally connected to the frame to permit independent directional displacement of each suspended unit with respect to the frame. A dire... | 06/26/1984 |
| 4426808 | Method of non-agricultural production of jojoba wax This invention relates to a method for the non-agricultural production of jojoba wax through the culture of asexual embryos of jojoba.... | 01/24/1984 |
| 4423884 | Booster axle connection system for a trailer assembly A trailer assembly comprises a main frame, main axles carrying laterally spaced wheels for supporting the main frame, a suspension system connecting the main axles to the main frame, a kingpin for coupling the main frame to a power unit, a secondary frame... | 01/03/1984 |
| 4417198 | Average responding RMS indicating type transducer Transducers of the average responding RMS indicating type are disclosed that are particularly useful for monitoring currents and voltages in a power distribution network. The transducer includes transformer, inductively compensated voltage divider, active... | 11/22/1983 |
| 4413836 | Tractor-trailer coupling means An apparatus is disclosed for coupling a tractor to a trailer employing a detachable gooseneck type of connecting means, and has particular utility where loading and unloading is required without force binding of the mechanism. A trailer assembly is descr... | 11/08/1983 |
| 4397423 | Material distribution device A material distribution device is disclosed for spreading material such as grain during bin loading. A hopper, having a plurality of funnels therein acts in conjunction with the grain to automatically establish the path of the grain through the hopper acc... | 08/09/1983 |
| 4387714 | Electrosurgical dispersive electrode An electrosurgical dispersive electrode is disclosed that is useful in conjunction with an electrosurgical unit to establish capacitive-coupling with the skin of a patient receiving therapeutic signals from the electrosurgical unit. The electrode includes... | 06/14/1983 |
| 4301619 | Plant tissue produced by non-agricultural proliferation of cacao embryos This invention is a non-agricultural method for producing cotyledons of those plant species whose cotyledons have commercial value for the manufacture of useful products or for direct use as foodstuffs such as Theobroma cacao L. (cacao). The method involv... | 11/24/1981 |
| 4291498 | Method for production of mature asexual cacao embryos, and product thereof A method for growth, development and maturation of cacao embryos from the precursor stage disclosed in U.S. application Ser. No. 951,267, and product of such method of production.... | 09/29/1981 |
| 4245005 | Pellicular coated support and method A pellicular coated support and method for producing such a support are disclosed. The support includes a thin layer of adsorbate that is adsorbed to and cross-linked on an inorganic support material with the thus formed support being particularly well su... | 01/13/1981 |
| 4230485 | Method of increasing grain yield in field corn by application of triacontanol A field corn specific method of treatment with 1-triacontanol [CH3 (CH2)28 CH2 OH] which produces a significant yield increase is disclosed. The method teaches that the stage of plant maturity is the key to the ... | 10/28/1980 |
| 4222115 | Spread spectrum apparatus for cellular mobile communication systems An apparatus is disclosed for a cellular mobile communication system utilizing a spread spectrum. A plurality of fixed base stations is connected with a central processor so that calls originating in any cell can terminate in any other cell. The available... | 09/09/1980 |
| 4216549 | Semi-stable total knee prosthesis A three piece prosthetic knee joint comprised of a femoral component in the form of a shell member having convex condylar portions with an insert having a top surface with concave portions which receive said condylar portions of the femoral component and ... | 08/12/1980 |
| 4215577 | Utilization of diodes as wide range responsive thermometers A device is disclosed, and a method for construction, in which gallium arsenide phosphide diode chips are employed to produce an inexpensive thermometer that has a broad range, accurate, temperature sensitivity. The thermometer does not require recalibrat... | 08/05/1980 |
| 4215090 | Flame ionization detector A flame ionization detector is disclosed that is particularly useful for liquid chromatography. The detector is preferably utilized with a disc transport assembly with flame jets being positioned at opposite sides of the solute-bearing periphery of the di... | 07/29/1980 |
| 4211061 | Flexible disc crop pick-up device A harvester pick-up is disclosed for harvesting agricultural products which are located above, but in contact with, or very close, to the field surface. The agricultural products, such as tomatoes, are seized between two contra-rotating flexible discs whi... | 07/08/1980 |
| 4207987 | Apparatus and method for spiral separation of materials An apparatus and method are disclosed for spiral separation of materials. The apparatus includes spiral separator flights mounted on a vertical tube within an enclosure with the material, such as seeds, to be separated being introduced into the apparatus ... | 06/17/1980 |
| 4204366 | Method of non-agricultural production of cotyledons This invention is a non-agricultural method for producing cotyledons of those plant species whose cotyledons have commercial value for the manufacture of useful products or for direct use as foodstuffs such as Theobroma cacao L. (cacao). The method involv... | 05/27/1980 |
| 4193031 | Method of signal transmission and reception utilizing wideband signals A method is disclosed for signal transmission and reception utilizing wideband signals, and, more particularly, the use of time-frequency coded signals to achieve more efficient use of the electromagnetic spectrum. The method can be generally utilized for... | 03/11/1980 |
| 4189677 | Demodulator unit for spread spectrum apparatus utilized in a cellular mobile communication system A demodulator unit is disclosed for spread spectrum apparatus utilized in a cellular mobile communication system. The cellular mobile communication system includes a plurality of fixed base stations connected with a central processor so that calls origina... | 02/19/1980 |
| 4174976 | Acid hydrolysis of cellulose to yield glucose A process to yield glucose from cellulose through acid hydrolysis. Cellulose is recovered from cellulosic materials, preferably by pretreating the cellulosic materials by dissolving the cellulosic materials in Cadoxen or a chelating metal caustic swelling... | 11/20/1979 |
| 4171791 | Releasable mold for forming a ribbed transformer casing A releasable mold is disclosed for forming a ribbed transformer casing. The mold includes a plurality of sections first and second ones of which are endwise joined to form an annular ring. Each section has an inner portion with a concave face for forming ... | 10/23/1979 |
| 4146137 | Adjustable unit for spiral separator An apparatus is disclosed for an adjustable movable unit for a spiral separator seed cleaning machine. The apparatus may take a variety of forms depending on the particular spiral separator it is to be mounted upon. The movable unit mounts on a rod and is... | 03/27/1979 |
| 4143575 | Electronic sound generating system for a stringed musical instrument An electronic sound generating system is disclosed for use with a stringed musical instrument such as a guitar. An RF oscillator is connected with an electrically conductive string of the instrument and a pickup coil is positioned adjacent to the string s... | 03/13/1979 |
| 4140591 | Photoelectrolytic apparatus for water splitting Platinized chlorophyll a dihydrate polycrystals are used to expedite the photochemical cleavage of water to yield molecular hydrogen and oxygen. The peak quantum efficiency of this photoelectrolytic apparatus at 740 nm is about 20%.... | 02/20/1979 |
| 4138021 | Ducted material handling device for top unloading of a storage receptacle A material handling device is disclosed for use in a material holding, or storage, receptacle. The device includes a vertically positioned discharge duct having spaced apertures therein with the bottom of the duct connected to a discharge access passage w... | 02/06/1979 |
| 4130295 | Hitch assembly for a farm tractor A hitch assembly is disclosed that is particularly useful for a farm tractor to pull ancillary farm equipment, such as ammonia applicators, across a field to be treated during a farming operation. The hitch assembly is connected to the front of the tracto... | 12/19/1978 |
| 4118667 | Method for making a heat sensitive fault detecting and indicating device for watthour meter A method for making a heat sensitive fault detecting and indicating device for a watthour meter is disclosed herein. The illustrated method is particularly useful for a watthour meter that conventionally includes a potential stator and a current stator bo... | 10/03/1978 |
| 4115062 | Cancer detection by serum analysis of glycolipids In humans and experimental animals, serum levels of sialic acid-containing glycolipids are elevated 1.5 to 3 fold. A method is described whereby the ganglioside content is estimated on as little as 0.5 ml of serum or plasma. The procedure permits, based o... | 09/19/1978 |
| 4108718 | Vapor filtration process and system A process and system for recovering the materials from an aqueous solution is disclosed. Dissolved materials in the aqueous solution are solidified as the aqueous solution is caused to be changed from liquid to vapor state, and the solidified materials al... | 08/22/1978 |
| 4108603 | Method for rapid analysis of hemoglobin variants by high speed liquid chromatography A method for analysis of hemoglobin variants by high speed liquid chromatography and, more particularly, by ion-exchange chromatography. Through the use of high flow rates and pressures, the hemoglobin variants can be rapidly forced through the separation... | 08/22/1978 |
| 4103793 | Folding gooseneck trailer with positioning system A folding gooseneck trailer is disclosed having a positioning system for positioning the main bed of the trailer relative to the ground as well as the loading bed, or hitch platform, relative to the main bed and the ground. The loading bed of the trailer ... | 08/01/1978 |
| 4103261 | Laser beam shutter and beam indicator A combined laser beam shutter and beam "on-off" indicator is disclosed. A rotatable shutter pin is mounted in a beam interrupting positon with the shutter having an aperture thereon which, when the pin is rotated to the proper position, permits passage of... | 07/25/1978 |
| 4084143 | Transformer mounting assembly A transformer mounting assembly is disclosed for mounting a plurality of current transformers on a wire. A pair of parallel mounting plates are positioned normal to one another with one of the mounting plates having first and second current transformers m... | 04/11/1978 |
| 4080567 | Heat sensitive abnormal condition detecting and indicating device and method A heat sensitive abnormal current condition detecting and indicating device associated with a watthour meter indicates that a possibly damaging surge has been experienced by the meter. The abnormal condition detecting and indicating device includes indica... | 03/21/1978 |
