Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7337946 | Device for resolving interpersonal relationship issues A device for resolving interpersonal relationship issues comprising: (a) a plurality of text sheets comprised of flexible, transparent material; (b) a rigid front cover; and (c) a rigid back cover; wherein each text sheet comprises an opaque band bearing text on eit... | 03/04/2008 |
| 7251903 | Method for spacing guides on fishing rods and chart for spacing same A chart for locating guides on a fishing rod comprising a plurality of side by side lanes each having a vertical portion and in a predetermined plane and arcuate lane portions of different radii and curved through an arc of about ninety degrees (90°) from said pred... | 08/07/2007 |
| 7204034 | Method for spacing guides on fishing rods and chart for spacing same A chart for locating guides on a fishing rod comprising a plurality of side by side lanes each having a vertical portion and in a predetermined plane and arcuate lane portions of different radii and curved through an arc of about ninety degrees (90°) from said pred... | 04/17/2007 |
| 7152332 | Navigational assist system Disclosed is a navigational assist system to assist a pilot or other person in the entry into an entry environment, such as a holding pattern or runway traffic pattern. The navigational assist system is comprised of a plurality of entry determining elements moveably... | 12/26/2006 |
| 6950731 | Traffic pattern approach computer A mechanical computer used in tandem with a GPS to approach, enter and fly the traffic pattern of any uncontrolled airport. Pilots must navigate to a relatively small area or approach point before entering the traffic pattern of an uncontrolled airport. While airpor... | 09/27/2005 |
| 6279958 | Food portion tabulator and method of use A food portion tabulator device that is an aid for calculating and evaluating an individuals daily intake of food portions. The device is self-contained, having various indicia pertinent to various food groups thereon, includes movable pins which correspo... | 08/28/2001 |
| 5886331 | Electronic calculator for determining truck driver log book values An electronic calculator for determining truck driver log book values including a liquid crystal display. Also included is a conventional numeric keypad having a matrix of numeric keys for allowing the entering of value signals representative of whole num... | 03/23/1999 |
| 4551620 | Biorhythms analog computer-calendar A Biorythms analog computer-calendar is provided to display without computations the level of the physical, the emotional, and the intellectual biorythms of a human body. The level of the three biorythms appears on display in analog and digital forms for ... | 11/05/1985 |
| 4538352 | Shrinkage compensated measuring device The disclosure describes a shrinkage compensated measuring device comprising a first scale calibrated in units of length, e.g., inches or centimeters, and a second scale calibrated in units of percent shrinkage. Each point on the second scale corresponds ... | 09/03/1985 |
| 4476380 | Calculator A calculator of flat design with a surface chart showing marginal scales and diagonal inner ones. The top of the calculator serves as a cover attached marginally to a case underneath. Also, the top has a diagonal slot, and is surmounted by a flat pointer ... | 10/09/1984 |
| 4274204 | Aircraft traffic pattern computer An aircraft traffic pattern computer employing a slotted frame having a window surrounded by a compass rose which is movable in relation to the frame about a pivot point, the slotted frame being adapted for holding a placard having a pair of surfaces upon... | 06/23/1981 |
| 4203542 | Calculating apparatus A calculator is described which greatly simplifies the calculation of the required feeder head parameters, e.g. size, amount of antipiping compound, in casting metals. Only the size of the casting section being fed and the normalized inscribed circle rela... | 05/20/1980 |
| 4122994 | Method and means for determining optimum average cycle lengths A method and computational aid for determining the optimum cycle lengths for use in a vehicular traffic control system wherein inbound and outbound traffic flow are equally favored. The method employs the technique of determining optimum cycle lengths by ... | 10/31/1978 |
| 4117973 | Calculating devices This invention relates generally to graphic calculating methods and apparatuses, and in particular to an apparatus by which the values and other factors pertaining to bonds, stocks and other securities may be calculated when certain values and other facto... | 10/03/1978 |
| 4074116 | Selector A device for selection of compressors, condensers, expansion valves, and evaporators for air conditioning or refrigeration systems.... | 02/14/1978 |
| 3984657 | Stock trend indicator A stock trend indicator and method of using is disclosed. The manipulable instrument is used with a standard stock chart to forecast an evaluation of future stock behavior.... | 10/05/1976 |
