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Class 73/862.382 - With detail of overload protection


Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein significance is attributed to a means
No. of patents: 71
Last issue date: 10/02/2007


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NumberTitleIssue Date
7275452Stop assembly for a beam type load cell
A beam load cell transducer is positioned between a stationary member and moveable member. The stationary member, as well as the moveable member are surrounded by a collar, which collar has an inner surface means to limit the movement of the moveable member of the t...
10/02/2007
7240571On-board scale sensor with mechanical amplification and improved output signal apparatus and method
A system for sensing the load carried in a structural member by attaching a load cell to a neutral axis of bending. Small deflections along an arc of bending create a desirable signal level via mechanical amplification. A load sensor is adapted for mounting on an ax...
07/10/2007
7171301Method and system for detecting an absolute pressure sensor malfunction
A method for detecting a malfunction in a manifold absolute pressure sensor used in an internal combustion engine. The method includes obtaining a plurality of samples from the manifold absolute pressure sensor. A plurality of samples is obtained from a mass airflow...
01/30/2007
7168333Monitoring system for pressurized container
A system and method of monitoring a pressurized container having an auxiliary device are provided. The system includes a sensor operable to provide a signal representative of at least one operating condition of the pressurized container. The system also includes a c...
01/30/2007
7086299Multi-load beam apparatus to prevent improper operation due to off-axis loads
A multi-load beam transducer includes a fixed member, a movable member, and a plurality of load beams positioned between the members, each beam separated by a given distance normal from each other and positioned about a longitudinal axis between the members. The plu...
08/08/2006
7082845Device for leaf chain load cell
A device having integrally formed channels that prevent forces on a sensor cable from damaging a load cell such that if the cable is overloaded it will break but the strain gauge within the load cell will be protected. ...
08/01/2006
7076990Load cell type weight measuring device
A load cell type weight measuring device includes a load cell formed of a strain member provided with a plurality of strain gauges and deforming according to a load applied to a load receptacle. The load cell type weight measuring device converts an output of a Whea...
07/18/2006
7009119Weight scale control system and pad
The present invention is directed to a weight scale having a control system that prompts users for their identity and then displays any one or more of: present weight, past weights, target weights and/or the differences therebetween, as well as a graphical represent...
03/07/2006
6948386Shock resistant strain gage—seat mounted
An over-travel protection device is provided for placing in a load path between a load cell and an object being weighed. The device has a first member positioned to be in the load path and a second member also positioned to be in the load path. The second member is ...
09/27/2005
6923062Sensor
For a sensor whose sensor structure is implemented in a micromechanical structural component and which has parts which are movable in relation to the stationary substrate of the structural component, and which also includes an unsupported a seismic mass, a spring sy...
08/02/2005
6923038Device for measuring of friction
The present invention concerns a device to be mounted on a vehicle that is in a position to measure, by means of own equipment, different data which is important for the road safety on roads and runways for aircrafts. The device is among other factors equipped with ...
08/02/2005
6916999Weighing pan with a means to protect the weighing object
A weighing pan for a comparator balance has a surface coated with a polymer lacquer. The coated surface is distinguished by a moderate hardness and increased levels of sliding friction and adhesive friction. By adding anti-static agents, the surface coating can be m...
07/12/2005
6912920Frame-based occupant weight estimation load cell with ball-actuated force sensor
A seat frame-based occupant weight estimation load cell transfers the seat force to a floor bracket through a spherical ball and a ball actuator. The ball is in contact with the force sensor and has minimal contact area with either the ball actuator or the force sen...
07/05/2005
6854343Torque sensor for electric power-assisted steering systems
Torsion in a shaft with two portions or a torsion bar caused by a torque is initially converted into an angular movement of a disc-shaped movement converter fastened to the first portion. A carrier surrounding the shaft as a sleeve is fastened to the second portion ...
02/15/2005
6769897Device for monitoring force and pressure in injection molding machines
Device for monitoring force and pressure in injection molding machines, with at least one sensor for measuring the deformation of a machine part that is deformed by the closing or injection pressure, wherein a supporting body (2) is provided that relieves the...
08/03/2004
6487908Micromachined devices with stop members
A micromachined device has a first body suspended over a substrate in a plane parallel to the substrate and movable in the plane in a first direction relative to the substrate. A driver moves the first body in the first direction. A stop member, anchored ...
12/03/2002
5773729Overload protected loadcell
A loadcell for a weighing scale includes an elongate beam having mounting and free ends spaced apart along a beam axis to define a cantilever. The beam includes an upper surface spaced above the beam axis, and a lower surface spaced below the beam axis. A...
06/30/1998
5591944Overload stop assembly for a load cell
A load cell assembly for measuring force loads between two elements includes a four-bar linkage with connection arms mounted at opposite corners. Each of the connection arms include a first end rigidly connected to the four-bar linkage and a free end. An ...
01/07/1997
5335544Apparatus for measuring mechanical forces and force actions
An apparatus for measuring mechanical forces and force actions by means of body, a restoring element and a movable mass, with elements for limiting the deflections of the movable mass. The movable mass is deflected against the resistance of the restoring ...
08/09/1994
5257549Variable range load cell system and method of application
A variable load cell arrangement operative for precisely measuring loads over a range beyond the range of a single conventional single low range load cell. The arrangement includes a low range measuring element positioned in a case and having one end adap...
11/02/1993
5056374Quickly installed load measuring apparatus and associated system
A load measuring apparatus is, in preferred embodiments, pre-assembled in a ready-to-use, portable assembly and comprises a load bearing body providing a deformable link between a shaft housing (such as a valve operator) and a shaft which moves relative t...
10/15/1991
4949799Electronic weighing structure
A method of constructing a three(3) load cell weighing appartus using four(4) strain gages is disclosed. The method is then expanded to show how eight(8) or more load cells could be incorporated into a single weighing platform....
08/21/1990
4912983Sealed tensiometer
A threadline tensiometer with strain gage sensors sealed inside a protective cover and capable of being located remote from the application of threadline forces....
04/03/1990
4912984Quickly installed load measuring apparatus and associated system
A load measuring apparatus is, in preferred embodiments, preassembled in a ready-to-use, portable assembly and comprises a load bearing body providing a deformable link between a shaft housing (such as a valve operator) and a shaft which moves relative to...
04/03/1990
4899599Strain force sensor means
A strain sensor device for measuring tension on a web or strand member including a frame member, a shaft member extending from the frame member and having a web or strand engaging member mounted thereon, the strain sensor device supporting one portion of ...
02/13/1990
4888997Control input device
The present invention teaches a control input device particularly suited to a number of applications on a motor vehicle. The device can be activated by the foot of an operator to transmit an electrical output signal which is a function of load or displace...
12/26/1989
4864874Force measuring device
A novel force measuring device of simple design is provided with complementary stop surfaces protecting the device against over-loading. Alternatively, overloading is prevented by duplicating the force measuring device with two portions operating in oppos...
09/12/1989
4862751Force-detecting apparatus
A force-detecting apparatus comprising an elastic member deformable symmetrically with respect to the center, a first displacement-detecitng means for detecting the displacements of the elastic member at the positions symmetric with respect to the center ...
09/05/1989
4735102Web tension transducer apparatus
An easily installed and disassembled web transducer device for measuring and monitoring the tension in a continuously moving web as it moves over a tensioning roller. The transducer device comprises a cantilever mounted strain beam with attached strain ga...
04/05/1988
4734671Strain gage beam having integral overload protection
A sensitive deflector beam having an integral deflectable element utilizes an immobilization pin and a limit pin to prevent damage to the deflectable element during fabrication and use. The immobilization pin is inserted through the beam and to the deflec...
03/29/1988
4680606Semiconductor transducer
A semiconductor transducer (10) including a substrate having a well (18) formed in one surface thereof and a semiconductor layer (14) having a first surface (26) bonded to the substrate about the periphery of the well to form a diaphragm (30) and a second...
07/14/1987
4674341Web tension transducer apparatus
An easily installed and disassembled web transducer device for measuring and monitoring the tension in a continuously moving web as it moves over a tensioning roller. The transducer device comprises a cantilever mounted strain beam with attached strain ga...
06/23/1987
4653599Load cells with overload protection and moment adjustment means
A load cell includes base and load receiving members connected together by a pair of parallel flexures to form a parallelogram configuration. One of the flexures has at least one strain gage secured thereon, along with a cantilevered stop member positione...
03/31/1987
4653329Pressure detector and strain member therefor
A circular diaphragm with an annular thin portion has a smooth front surface, and coaxial but spaced inner and outer cylinders are secured to a rear surface of the diaphragm across said annular thin portion. Opposite edges of a rectangular strain member w...
03/31/1987
4649363Sensor
A sensor having a silicon die having a central region and a flexible annular sensing portion surrounding the central region. The sensor has apparatus carried by the central region of the die for limiting the movement of the central region in each of two o...
03/10/1987
4632198Multi-range load cell weighing instrument
An improvement in a multi-range load cell weighing instrument of the type which has a plurality of load cells including a high weighing load cell positioned adjacent a base and a low weighing load cell positioned adjacent a tray. In the improved weighing ...
12/30/1986
4581947Linear force measurement apparatus or device
A linear force measuring device for measuring the tension upon a web comprises a measuring ring built into the bearing assembly of a deflection roller over which the web passes. The measuring ring has a pair of slits cut into the ring, the slits having pa...
04/15/1986
4467661Load cell with overload protection system
A load cell having a self-contained overload protection system for preventing the load cell from being loaded beyond its rated capacity, wherein the load cell includes fixed and movable end constraints in spaced relation, upper and lower flexures between ...
08/28/1984
4455880Electronic transmitter element and a lifting device comprising such element
An electronic transmitter element intended for use in connection with a lifting device in order to generate an electric signal corresponding to the load being handled. The transmitter element comprises a tensile link (1) to which strain gauges are fixedly...
06/26/1984
4438823Load cell
A load cell is disclosed which in its full operating range entirely eliminates the effects of off-center loading and lends itself to simplicity and economy in manufacturing. The core element of a linear variable differential transformer employed to measur...
03/27/1984
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