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| Number | Title | Issue Date |
| 7285735 | Method of measuring the weight of bulk liquid material within a trailer Method of measuring the weight of bulk liquid material within a container of a tractor-trailer combination in which air bag pressure of a pneumatic suspension system is sensed and correlated with the weight of the bulk liquid material within the container. In accord... | 10/23/2007 |
| 7234346 | System and method for detecting and displaying an amount of chemical in a cylinder or vessel A system and method for detecting and displaying the amount of chemical in a vessel. The system includes a vessel with a variable quantity of gas supported upon a moveable platform. A hydraulic load cell is positioned under the platform, and generates a hydraulic pr... | 06/26/2007 |
| 7196277 | Device and apparatus for measuring the load in a chamber of a vehicle A cement mixer truck and a weight measuring system is provided, comprising a mixing chamber, at least one rear roller bearing assembly, and a front mounting assembly. The rear roller bearing assembly includes a roller bearing and a first weight measurement device. T... | 03/27/2007 |
| 7180016 | Weight sensor accessory This invention provides a housing (60) for a weight sensor (10). The housing (60) is made from fluid-impervious material and is shaped and configured to completely enclose the weight sensor (10) in a fluid tight manner. The housing (60... | 02/20/2007 |
| 7072763 | Intelligent load distribution system A vehicle information system has a first load sensor for generating a first load signal based on a first vehicle load. A first position sensor generates a first position signal based on a position of a vehicle axle. A second position sensor generates a second positi... | 07/04/2006 |
| 7059446 | Frame-based bladder apparatus for seat occupant weight estimation A frame-based occupant weight estimation apparatus for a vehicle seat that is supported by two or more floor brackets secured to the vehicle floor spans an open space between the floor brackets to prevent shunting of the occupant weight through a foreign object lyin... | 06/13/2006 |
| 7047827 | Folding digital scale A portable digital scale is foldable for ease of storage and transport. The scale includes a fluid-filled elastomeric bladder and electronic module disposed in a hard-sided case that is opened in use and folded to encase the bladder and electronic module during tran... | 05/23/2006 |
| 6101436 | Vehicle occupant weight estimation apparatus having fluid-filled multi-cell seat bladder An improved weight estimation apparatus in which a closed, multiple cell elastomeric bladder filled with fluid is installed in the foam cushion of a vehicle seat bottom, with at least one pressure sensor installed in a closed exit port of the bladder. The... | 08/08/2000 |
| 6089106 | Force sensor assembly Several force sensor assemblies are disposed within a vehicle seat to determine seat loading and assist in safety device activation. Each force sensor assembly has a sealed body filled with a liquid or a gel. A pressure transducer, together with a support... | 07/18/2000 |
| 6058341 | Vehicle occupant weight estimation apparatus having controlled volume seat bladder A weight estimation apparatus for the passenger seat of a motor vehicle, in which a single bladder substantially encompassing the seat bottom is evacuated and then inflated with a known volume of air. The average pressure in the bladder is determined to e... | 05/02/2000 |
| 5984349 | Low profile hydraulic seat weight sensor A hydrostatic weight sensor comprises one or more fluid containing bladders in fluid communication with one another and with a pressure sensor, each constructed from a plurality of sheets of semi-rigid material sealably connected at the periphery thereof ... | 11/16/1999 |
| 5957491 | Seat weight sensor having fluid filled bladder A seat weight sensor incorporates a fluid containing bladder placed in series with the load path in the seat, whereby a load applied to and distributed across the bladder increases the pressure of the fluid therein. The pressure of the fluid is measured b... | 09/28/1999 |
| 5904219 | Vehicle seat air bladder pressure sensor An air bladder type pressure sensor for a vehicle seat includes an integral pressure reservoir and interconnecting valves to keep the sensor membrane automatically properly inflated. An air pump refills the reservoir intermittently, while the reservoir ke... | 05/18/1999 |
| 5234065 | Portable weight measuring device A portable weight measuring device including a plurality of flat, flexible generally nonelastic fluid-containing bladders arranged edge to edge and interconnected by flexible tubes for fluid flow between the bladders. Flat, rigid upper and lower support p... | 08/10/1993 |
| 5170856 | Weighing scale with fluid pressure transmission means A weighing scale of the type comprising a scale is disclosed wherein the weighing scale is table for bearing the thing to be measured; a first hydraulic cylinder disposed below the scale table; a feeler transmitting the pressure applied at the scale table... | 12/15/1992 |
| 5167289 | Air spring load monitoring system An air spring load monitoring system provides a vehicle operator with an on-board visual display of the load distribution imposed on each axle from front to rear of a truck and trailer, and displays differential loads imposed from side to side across each... | 12/01/1992 |
| 4697656 | Device for weighing individuals on a toilet seat The weighing device comprises at least a force sensor (1,2,3) integrated in a toilet seat (4) resting on the upper edge of the bowl (11); the sensor works with an electronic unit (6) comprising means for formatting the measurement signal that drives a mea... | 10/06/1987 |
| 4673049 | Weighing device for weighing wheel loads The weighing device for wheel loads has a platform (3) which distributes the load over a plurality of elongated hollow elements (2) disposed parallel with and at equal distances apart from and alongside one another on a baseplate (1). The hollow elements ... | 06/16/1987 |
| 4651838 | Air spring control system and method A method and system are set forth for determining the force necessary to separate a first and a second mass by using an inflatable member such as an air spring. More specifically, the invention includes a system and method for load leveling of a vehicle. ... | 03/24/1987 |
| 4606419 | Truck mounted load scale An air/hydraulic scale for use on a truck or trailer and having frame mounted hydraulic cylinders with piston rods contactible with a vehicle axle. Fluid expelled from the cylinders actuates a load indicating displacement cylinder located adjacent the loa... | 08/19/1986 |
| 4588038 | Load weight measuring method In a measuring method of a load weight carried by a vehicle wherein the load weight is measured by subtracting the weight of vehicle when the vehicle is empty from the weight of the vehicle when it is loaded, the load weight being supported by suspension ... | 05/13/1986 |
| 4498550 | Weight measuring apparatus with corrugated spring elements A weighing scale (10) includes a base (12) with a connecting channel (14) disclosed therein. A layer (16) of elastically deformable material is disposed over this channel with longitudinal corrugations (18) disposed therein. Each of these corrugations (18... | 02/12/1985 |
| 4489799 | Weight measuring apparatus with a distributed array of spring elements A weighing scale (10) includes a base (12) with an array of cylindrical bores (16) disposed therein. A network of interconnecting channels (18) is formed on the lower surface of the base (12) with a cover (20) disposed thereover. A layer of elastically de... | 12/25/1984 |
| 4489798 | Weight measuring apparatus with weight distributed along an array of longitudinal axes A weighing scale (10) includes a base (12) with longitudinal channels (14) milled therein. A layer (20) of elastic deformable material is disposed over these channels with longitudinal rods (22) disposed over the layer (20) and oriented along the longitud... | 12/25/1984 |
| 4431072 | Weighing device A portable weighing scale device is disclosed for determining the axle load weight of a vehicle such as a semi-truck, trailer and the like. The weighing scale device includes a platform with tire guide rails and inflatable air bags. An air pressure gauge ... | 02/14/1984 |
| 4366876 | Hydraulic bellow type scale A hydraulic bellow type scale comprises a scale body, a plurality of hydraulic bellows, a variable capacitor, an integrated circuit and a display unit. By means of the pressure in the hydraulic bellow, the weight of an object on a pan of the scale body is... | 01/04/1983 |
| 4248046 | Vent accumulator for hydraulic integrator A vent accumulator for a hydraulic integrator of the type having at least three pistons arranged in end-to-end relationship within an elongated housing. Each piston is adapted to move under hydraulic pressure in a direction away from one longitudinal end ... | 02/03/1981 |
| 4085810 | Weight bearing treadle An improved treadle for use in a compact, portable weighing scale comprising a load-bearing, pressure-developing displacement treadle connected to a volume-reacting, weight-indicating readout means. The treadle contains a first sealed collapsible chamber ... | 04/25/1978 |
| 4078624 | Modular weighing apparatus A weighing apparatus comprises a plurality of weighing apparatus modules, each of which includes an elongated platform structure under which lies an elongated frame structure. A load cell is interposed between a downwardly directed area of the platform st... | 03/14/1978 |
| 4056156 | Weighing device Combination hydraulic-pneumatic weighting scale which has a base in which is located multiple load cell units to effect displacement of a quantity of hydraulic fluid. A flexible conduit interconnects the load cells with the gauge. The gauge indicator is m... | 11/01/1977 |
| 4036317 | Apparatus for measuring loads An apparatus for measuring loads with the use of a plurality of measuring points, for instance in motor vehicles, in which one load-supporting measuring element is placed at each measuring point and contains a resilient material, such as rubber, for takin... | 07/19/1977 |
| 4007800 | Force measuring device A force measuring device comprises at least one gauge element which, at least, in some regions, is conceived as a spring element, the deformation of which changes the volume of liquid contained in a chamber delimited by the gauge element; the spring eleme... | 02/15/1977 |
| 4002216 | Portable scale Portable scale comprises a platform supported by an air bag with the air bag connected to a pressure-reading device calibrated in weight so that, when a load is placed on the platform, the pressure-reading device indicates its weight. In the preferred emb... | 01/11/1977 |
| 3992946 | Hydraulic weighing apparatus A weighing apparatus comprises a plurality of hydraulic load cells each including a piston, a cylinder, and a flexible diaphragm of fluid impervious material sealed in the cylinder and overlying the piston to form a fluid pressure receiving chamber. The c... | 11/23/1976 |
| 3974491 | Load signaling device for a patient's foot A device for signaling a patient when a predetermined load is placed on the patient's foot comprises a resilient foot pad having a toe end and a heel end and adapted to substantially cover the inner sole of a shoe. A resilient liquid filled tube is mounte... | 08/10/1976 |
| 3933212 | Weighing apparatus Platform weighing apparatus combines a foundation frame, a two layer platform, and interposed load cells of highly restricted vertical dimensions. The load cells are interfitted within cut-away portions of the underlayer of the platform, being removably a... | 01/20/1976 |
