Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 7360438 | Advanced thick film load cell A load cell apparatus and method for forming the same. A load cell apparatus is configured to include a load cell housing and a modular strain gage element that is modularly assembled into the load cell housing. The load cell housing and the modular strain gage elem... | 04/22/2008 |
| 7334489 | Dual rate force transducer A dual rate force transducer is disclosed. A spring is machined to have a first spring portion with a first spring rate, a second spring portion with a second spring rate, and a platen between the spring portions. A pair of flanges are affixed to the distal ends of ... | 02/26/2008 |
| 7275452 | Stop 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 |
| 7270008 | Inertial testing method and apparatus for wafer-scale micromachined devices A method and apparatus for simultaneous fracture and fatigue testing of a semiconductor wafer which includes installing an array of cantilever beams on the wafer, wherein each of the cantilever beams includes a proof mass; mounting the wafer on a base; actuating the... | 09/18/2007 |
| 7093506 | Force measurement cell A force measurement cell having a block-like mechanism unit includes a Roberval mechanism and a lever mechanism formed by cutting out a single piece of parent material. The Roberval mechanism has a fixed part and a movable part on which a measured force acts. A gapp... | 08/22/2006 |
| 7086299 | Multi-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 |
| 6817255 | Apparatus and method for testing of microscale to nanoscale thin films Apparatus and method for testing a thin film material. A chip is fabricated that includes the specimen to be tested, held by a force sensor beam at a first longitudinal end and by a support structure at a second longitudinal end. The chip is configured to be placed ... | 11/16/2004 |
| 6672176 | Torsional sensing load cell A torsional sensing load cell, particularly for mounting at support locations of an automotive seat in order to determine weight and sitting position of an occupant of a motor vehicle. The load cell has the shape of a tuning fork, with one arm fixed to a ... | 01/06/2004 |
| 6499360 | Torsional sensing load cell with overload protection A torsional sensing load cell, suitable for mounting at support locations of an automotive seat in order to determine weight and sitting position of an occupant of a motor vehicle. The load cell has the shape of a tuning fork, with one arm fixed to a foot... | 12/31/2002 |
| 6230571 | Beam strain gauge Disclosed is a beam strain gauge to measure strain in a material which incorporates the theory of beam mechanics and the use of a full Wheatstone bridge circuit. In all cases the beam or beams used are not attached directly to the material to be measured,... | 05/15/2001 |
| 5337618 | Load sensing assembly A load sensing assembly adapted to measure the weight of loads which act with both vertical and horizontal direction force components by resolving such force components solely into a vertical downward force component representative of the weight of the lo... | 08/16/1994 |
| 5321209 | Electronic weighing device A spring structure for a weight scale is described which is assembled from four extruded aluminum parts. The structure readily lends itself to the addition of a platform for placing weights and its deflection resulting from a weight is essentially invaria... | 06/14/1994 |
| 5259253 | Dynamometer with parallel guide The parallel guide of an elastic force reducing dynamometer comprises a frame secured to a base plate, two essentially parallel plates, a load carrier, and four elastic tie joints. The load carrier supports a balance pan for receiving weights. A load-carr... | 11/09/1993 |
| 5190116 | Deflection transducer for measuring vehicle loads and a system for mounting same A transducer which includes a central portion (12) having two longitudinally extending parallel rigid beam members (14,16) and two transverse parallel flexure members (30,32) which extend between the two rigid beam members (14,16) at right angles thereto.... | 03/02/1993 |
| 5113709 | Convertible web tension transducer A convertible web tension transducer and a roll assembly including two such transducers in which each transducer includes a coupling supported by a pair of resilient beams from a support member through a self-aligning bearing permitting pivotal movement o... | 05/19/1992 |
| 5088334 | Leaf spring dynamometer A dynamometer comprising a pair of similar leaf springs (4 and 5), lying in approximately the same plane, and at least one additional leaf spring (24). The outer part of the additional leaf spring (24) and any other supplementary leaf springs (6, 7, 19, a... | 02/18/1992 |
| 5078015 | Balance and dynamometer An elastic force reducing balance and dynamometer comprising a primary spring and a secondary spring which are stressed by bending when an input force is exerted. In at least one of the primary and secondary springs, at least one bar is formed which is st... | 01/07/1992 |
| 4964306 | Field-based movement sensor A field-based movement sensor adapted for measuring strain along a certain axis in an object on which the sensor is attached. The sensor includes a substrate having a working surface and formed with a pair of fingers projecting from a first direction, and... | 10/23/1990 |
| 4951764 | Digital display scale An improved digital display scale of the type with a load receiver acting on an arrangement of two parallel leaf springs which are movable relative to a base member, in which the leaf springs, a mounting support on the base and a load receiver supporting ... | 08/28/1990 |
| 4899600 | Compact force transducer with mechanical motion amplification A compact force transducer has at least one flexible beam mounted at one or both its ends to a force summing member or members. The force-to-be-measured is applied to the force summing member along a first axis generally transverse to the beams to deform ... | 02/13/1990 |
| 4846294 | Capacitance type weight sensor A capacitance type weight sensor including an upper strictive member integratedly forming the upper half of a stationary strut portion, the upper half of a movable strut potion and an upper beam, and a lower strictive member integratedly forming the lower... | 07/11/1989 |
| 4771640 | Load introducing device A load introducing device includes a rectangular yoke having a pair of opposite flexible sides, a pair of opposite rigid sides connected to the flexible sides and a cantilever portion extending from one of the rigid sides parallel with the flexible sides.... | 09/20/1988 |
| 4691579 | Tension transducer An improved transducer of a cantilevered beam type wherein a force to be measured is applied perpendicularly to the end of the beam through the joint and the improved joint comprises a self-aligning first roller bearing having an axially aligned center bo... | 09/08/1987 |
| 4677860 | Yarn tension sensor A yarn tension sensor is disclosed which is adapted for use with a textile yarn processing machine. The sensor includes a spring arm which is contacted by a running yarn, and such that the tension in the yarn acts to deflect the arm. In order to render th... | 07/07/1987 |
| 4649759 | Force transducer Two pairs of parallel plate electrodes forming respectively a sensor capacitor and a reference capacitor are mounted on a parallelogram structure designed to deform under load in such a way that the gap width of the sensor capacitor changes as a function ... | 03/17/1987 |
| 4597297 | Tension measurement device A tension measurement device, the device being four-sided, the device utilizing a parallelogram configuration. The tension measurement device utilizes a two-part position sensor which is preferably a Hall-Effect device. The tension measurement device util... | 07/01/1986 |
| 4572006 | Load cells A load measuring transducer comprises a frame structure machined out of a single piece and constituted by an inflexible fixed member and a movable member interconnected by parallel arms and resiliently articulated. The fixed member carries plates of a ref... | 02/25/1986 |
| 4558600 | Force transducer A force transducer has (1) a pair of opposed rigid-body force summing members that each include a sensor member and (2) a pair of beam members that each extend between and couple the force summing members. These sensor members have opposing sensing portio... | 12/17/1985 |
| 4550619 | Suspension for a linear force transducer A linear force transducer includes an inclined plate mounted in a chute to be impacted by a flow of granular material, the plate being supported by one or more leaf springs from the chute. An actuator rod is mounted to the plate and extends to a servo mec... | 11/05/1985 |
| 4467661 | Load 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 |
| 4463614 | Force transducer A force transducer includes a pair of rigid force summing members that each extend toward one another along a central axis and a pair of beam members that each extend along the central axis and couple the force summing members to form a parallelogram fram... | 08/07/1984 |
| 4448085 | Force transducer A force transducer includes a pair of rigid force summing members that each extend toward one another along a central axis and a pair of beam members that each extend along the central axis and couple the force summing members to form a parallelogram fram... | 05/15/1984 |
| 4438823 | Load 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 |
| 4343196 | Mass and force meter Mass and force meter with a body, a load support, a load cell, an intermediate body mounted between said body and said load support and supported by said body over a number of supporting points, said load support being supported by said intermediate body ... | 08/10/1982 |
| 4308929 | Integral parallelogram charge receiver and capacitive transducer The invention relates to a load receiver for weighing purposes, of the type comprising a stationary upright integral with a frame, a loaded upright integral with a load-carrying plate, and two arms 21 and 22 hinged onto these uprights in order to form the... | 01/05/1982 |
| 4260305 | Device for preventing tool breakage in tool machines An accessory for tool machines is provided comprising a tool holder isolatedly carried on bar springs to effect a floating mount. The holder yields in response to selective load stress during cutting and is restricted to a linear force path to relieve str... | 04/07/1981 |
| 4170270 | Apparatus for preventing the overload of a load cell An apparatus for preventing the overload of a load cell used to measure deflection by providing a safety mechanism that will act upon the support of the load cell when an overload condition is reached. The invention is described in the environment of a le... | 10/09/1979 |
| 4168518 | Capacitor transducer A pressure sensing transducer and method of construction therefor. The device includes a pair of contoured dielectric plates joined together at their periphery and having a central portion with conductive film on opposed portions of the inner surfaces of ... | 09/18/1979 |
| 4162632 | Load cell Indicator means for indicating the magnitude of force applied to a load cell in accordance with the deflection of the free end of a cantilever member of the load cell having the force applied thereto, comprising a scale, a pivoted indicator arm, the pivot... | 07/31/1979 |
| 4103545 | Load cell A flexure-based transducer especially adapted for very precise measurement of small forces in either direction along or parallel to a single axis, without being adversely affected by forces applied in any other direction or by moments applied about any ax... | 08/01/1978 |
