...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 6963036 | Accurate, high speed weighing apparatus and method The static or dynamic weighing apparatus for weighing an object or item, comprising a weighing assembly that includes a base with four (4) load cells attached to it, two (2) active load cells and two (2) passive load cells. Each active load cell has a mounting side ... | 11/08/2005 |
| 5003489 | Totalizer apparatus for flow rate measurement devices A totalizer apparatus, used with belt scales and other flow rate measuring devices producing output signals subject to zero drift, maintains an auxiliary totalizer register during zeroing operations so that should zero flow conditions be interrupted durin... | 03/26/1991 |
| 4866642 | Method and apparatus for determining the diameter of rail vehicle wheels The diameter of railroad wheels is calculated from data obtained by simultaneously producing two marker points on the tread surface of the wheel and simultaneously sensing these marker points and from data representing the known fixed location of the mark... | 09/12/1989 |
| 4862396 | Analyzing analog quadrature signals An apparatus and method for analyzing a pair of analog, generally sinusoidal, quadrature gauge signals from a conventional plunger-type gauge head includes digital ratio-metric comparison of signals using floating high and low reference conversion values ... | 08/29/1989 |
| 4674060 | Method and apparatus for counting currency and for confirming the count of strap currency A scale under microprocessor control weighs each batch of currency. The weight measurement is compared against predetermined stored weight values to determine if the currency being weighed is strap currency or unstrapped currency and to determine the rang... | 06/16/1987 |
| 4316384 | Digital moisture meter and method for determining percent weight loss The digital moisture meter includes means for taring an empty sample pan placed on the balance platen. After the balance has been tared, a small sample is placed in the sample pan and a heat lamp energized. At this same time, the initial weight of the sam... | 02/23/1982 |
| 4299326 | Weight sorting memory circuit A memory circuit is provided for use in conjunction with a conveying apparatus having a number of discharge or drop points at which articles may be discharged so that the articles may be sorted according to weight. A micro-processor is also provided which... | 11/10/1981 |
| 4294320 | Method and apparatus for weighing material being collected Process and apparatus for weighing material being collected. In the illustrative embodiment, plasma that has been separated from whole blood is collected. The tare weight is sensed and the weight of the material being collected is sensed. Pulses are provi... | 10/13/1981 |
| 4291374 | Mailing system A system for mailing articles includes an integrated circuit interface between a scale deflection transducer, a processor and an external memory. The interface includes a multifunction shift register array which is adapted to receive count data indicative... | 09/22/1981 |
| 4179747 | Mailing system A system for mailing articles includes an integrated circuit interface between a scale deflection transducer, a processor and an external memory. The interface includes a multifunction shift register array which is adapted to receive count data indicative... | 12/18/1979 |
| 4157738 | Method for counting the number of articles using a weighing machine A method for counting the number of articles or goods of the same kind using a weighing machine which comprises a step of measuring an average or mean weight of sample articles, a step of measuring a weight of all articles to be counted and a step of calc... | 06/12/1979 |
| 4152579 | Digital tracking system with analog signal resolution An optical detector provides an optically amplified function of displacement to be measured. The detector includes a first optical grating which moves with a displaceable member, while a second reticle grating is positioned in a plurality of phase displac... | 05/01/1979 |
| 4143364 | Optical displacement measuring system A system for processing cyclic signal pairs generated by an optical transducer to provide an accurate measurement of the displacement of one member with respect to a reference is suitable for determining weight by measuring spring scale tare deflection. T... | 03/06/1979 |
| 4134465 | Apparatus for measuring weight of bulk material conveyed by belt conveyor An apparatus for cumulatively measuring the weight of a continuous bulk material conveyed by a belt conveyer, comprising; a pulse generator operatively coupled to the conveyer for generating pulses of the frequency associated with the conveyer speed; a de... | 01/16/1979 |
| 4117898 | Electronic tare system for electrical balance An electronic tare system used in an electrical balance of the type which generates an electrical signal representing a mass being weighed for application to a digital read out or other display is capable of bipolar operation over a range much greater tha... | 10/03/1978 |
| 4051913 | Electronic postage scale A method of and apparatus for determining and displaying the postal rate for a parcel to be shipped to a destination zone by a selected class of shipment in accordance with the weight of the parcel. A memory is provided with plural sections, each section ... | 10/04/1977 |
| 4047007 | Clocked digital counting system A system for processing cyclic signal pairs generated by an optical transducer to provide an accurate measurement of the displacement of one member with respect to a reference is suitable for determining weight by measuring spring scale tare deflection. T... | 09/06/1977 |
| 3988874 | Poultry weighing and packing apparatus Poultry dropped from a conveyor line at a weighing station is automatically packed into containers by a container filling machine positioned below the weighing station. The birds received in the machine from the weighing station are rammed into an accumul... | 11/02/1976 |
| 3980871 | Device for registering and indicating the size of a load acting on a transducer A load size registering and displaying device is disclosed which can operate either statically or dynamically. The device is manually or automatically operable to account for tare weight. The load weight can be accumulated through a series of partial weig... | 09/14/1976 |
| 3979055 | Weighing system for conveying means A forage conveyor-scale apparatus includes a pivoted conveyor having a differential transformer load cell providing a weight signal. A Hall cell unit is coupled to the conveyor to produce a speed signal. An automatic gain amplifier is controlled by the sp... | 09/07/1976 |
| 3967690 | Digital readout diet scale An electronic digital readout diet scale including means for accurately detecting and displaying minute changes of weight in a dieter accurate to small fractions of pounds is described. One embodiment comprises a transducer for generating a signal represe... | 07/06/1976 |