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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7315003 | High resolution offset electronic weighing devices and methods Electronic weighing devices and method are disclosed wherein balances (particularly of the direct load type) are adapted to utilize less power thus creating less system heat and thereby enhancing weighing accuracy and range of operation. A preferred embodiment of th... | 01/01/2008 |
| 7214892 | Scale lever assembly The present invention discloses a weighing scale having a lever assembly which includes a pair of levers. Each lever has first and second pivotal ends and an intermediate region for engaging a weight sensing mechanism. A platform is provided upon the lever assembly.... | 05/08/2007 |
| 6978671 | Gas tank gauge A device for measuring and indicating the volume of the contents of a tank includes a fixed base. A spring deflectable with to the base is also provided. The spring supports at least a portion of the tank weight. A visible connector is connected to the spring such t... | 12/27/2005 |
| 6968805 | Fuel level indicator for a portable fuel tank A fuel level indicator for a portable fuel tank comprises a base, a platform hingedly connected to the base, a biasing member between the base and the platform to bias one end of the platform away from the base, and a visual indicator. When the fuel level indicator ... | 11/29/2005 |
| 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 |
| 6617531 | Seat load measuring device To provide a seat load measuring device which is capable of reducing production cost and assembly cost and which makes it possible to measure the weight of the person on the seat more accurately. The device measures the load of a seat of a passenger vehic... | 09/09/2003 |
| 6509532 | Electronic scale An electronic scale integrally formed within the housing of computer keyboard. The scale includes an item holder which may be removably attached to a weighing unit mounted in a clearance region located at a rear portion of the keyboard housing. In operati... | 01/21/2003 |
| 6448512 | Weight sensing apparatus A vehicle has a seat (12) for a vehicle occupant (14) and a vehicle floor pan (16) for supporting the vehicle seat (12). An apparatus (40) includes a vehicle seat frame (42) for supporting a weight load of the vehicle occupant (14) in the vehicle seat (12... | 09/10/2002 |
| 6376783 | Removable electronic scale cartridge, and a system and method which uses the scale cartridge to compute postal/carrier rates An electronic scale cartridge plugs into a piece of office equipment and/or a portable electronic device to provide a weight signal to be used in computing a postal or private carrier rate. The piece of office equipment may be a personal computer or one o... | 04/23/2002 |
| 6284987 | Embedded weight scale A weighing scale detects and indicates changes in a small weight that is embedded within a much larger residual weight. The scale device has a base and a top weighing pan above it, with a linkage supported between the base and the top pan. A counterbalanc... | 09/04/2001 |
| 6249778 | Integrated electronic scale, and a system and method which uses the scale automatically to compute postal/carrier rates An electronic scale integrally formed within the housing of a piece of office equipment increases a user's work space in a home or business environment. The piece of equipment may be a personal computer or one of its peripheral devices. A mailing system a... | 06/19/2001 |
| 6194671 | Electronic scale An electronic scale integrally formed within the housing of computer keyboard. The scale includes an item holder which may be removably attached to a weighing unit mounted in a clearance region located at a rear portion of the keyboard housing. In operati... | 02/27/2001 |
| 6069325 | Seat weight measuring apparatus A seat weight measuring apparatus measures a seat weight including a weight of a passenger sitting on an automotive seat. The seat weight measuring apparatus is formed of seat connecting mechanisms with arms for connecting the seat to seat fixing portions... | 05/30/2000 |
| 6028318 | Print media weight detection system A device that automatically detects the stiffness of the paper as an indicator of paper weight and thickness. The detection system of the invention includes a moveable media guide and a sensor responsive to movement of the guide. It is desirable that the ... | 02/22/2000 |
| 5962861 | Sheet media weight detector and method A device that automatically detects the strength of the paper as an indicator of paper weight and thickness. The detector includes a deflector acting on the paper or other sheet media and a deflection sensor that is responsive to the deflection of the pap... | 10/05/1999 |
| 4449597 | Flexure weighing system A flexure weighing system comprising a split-beam assembly consisting of two beams centrally connected by a flexure linkage system. The split-beam assembly is also connected to a frame and to mounting studs which connect the outer, load-bearing ends of th... | 05/22/1984 |
| 4387777 | Calorie counting method and apparatus Caloric counting method and apparatus comprises a base support structure, a plate support structure pivotally mounted on the base support structure, and scale means connected to said plate support structure at a point remote from the pivot line thereof. A... | 06/14/1983 |
| 4232798 | Automatic vending machine for delivering containers having edible product therein An automatic vending machine for delivering soft ice cream or the like to ice cream cones or other containers. A pivotally mounted arm receives a cone and then moves to a product-dispensing station. The product is dispensed into the cone until a weight-re... | 11/11/1980 |
