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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 7669486 | Weighing device The weight sensing device may include a base, a cover, a first load cell attached to the base and the cover, a second load cell attached to the base and in contact with the cover but not attached, and an analyzing circuit which is connected by electrical wires to th... | 03/02/2010 |
| 7404338 | Force sensor The resolution and the signal-to-noise ration of known force sensors as e.g. capacitive force sensors decrease when scaling them down. To solve this problem there is a solution presented by the usage of a nanostructure as e.g. a carbon nanotube, which is mechanicall... | 07/29/2008 |
| 7402763 | MIM force measuring device A force sensing device has a single-component metal housing. The housing has an upper rigid housing part and a lower rigid housing part that are interconnected by way of U-shaped spring elements and can be elastically displaced along a displacement axis in relation ... | 07/22/2008 |
| 7156595 | Load indicating fastener insert A method and apparatus for determining fastener axial loading includes a fastener insert having an arched bottom surface, which deflects correlative to the level of axial loading. A load indicating mechanism determines axial loading by measuring the amount of deflec... | 01/02/2007 |
| 7078631 | Spring scale A spring scale, in particular for weighing loads in the μg-mg range, comprises a load platform suspended by at least three flexural springs in a surrounding frame, and has bridge-connected strain gauges arranged for measuring strain on one side of the flexural spri... | 07/18/2006 |
| 7069795 | Sensor using electro active curved helix and double helix Various sensors use an electro-active device (11) electrically connected to a detector circuit. The electro-active device (11) comprises an electro-active structure in the form of a continuous electro-active member (12) curving in a helix around... | 07/04/2006 |
| 7004040 | Support structure for a load-bearing device A mechanism for reducing horizontal force in load measurement is presented. The mechanism includes a structure having surfaces of nonuniform radii of curvature (e.g., oblate spheroid surfaces) at both ends. The ends of the structure contact a force-sensor coupling e... | 02/28/2006 |
| 6898989 | Load cell A load cell comprising a load carrying structural framework is arranged with at least one measuring zone (15, 16) arranged with a measuring means. A load F applied in the x-direction parallel to two outer beams (1, 4) of the framework is transferred to... | 05/31/2005 |
| 6832528 | Load cell In order for a load cell with a force transducer for recording a weight, the force transducer having a part which does not deform under loading and a force introduction part with an elastically deformable part, the elastically deformable part and the non-deforming p... | 12/21/2004 |
| 6701260 | System for measuring loadings in a structure, measuring unit and measuring sensor The invention relates to a system for measuring loading, stresses and/or material fatigue in a structure. The invention also relates to a measuring sensor unit (50) and a measuring sensor (302) suitable for use in connection with said method. The inventio... | 03/02/2004 |
| 6308583 | Axle force and moment transducer A transducer assembly adapted for use for measuring forces and moments including a stationary center load axle having an elongated extend extending along an elongated axis between spaced opposed ends. The transducer assembly including first and second loa... | 10/30/2001 |
| 5847289 | Profile for accommodating a sensor A rubber-like section with one or several hollow chambers is provided as a sensor receiving section for housing and protecting pressure-actuated sensors, in particular for mounting behind screens and as window guiding sections, in particular for car windo... | 12/08/1998 |
| 5824917 | Force measuring device A force measuring device for measuring forces between mutually parallel machine parts, preferably in force bypass. The device has two mutually parallel abutment faces (5,6) having an adjustable distance between them. A force sensor (18) is integrated in a... | 10/20/1998 |
| 5777239 | Piezoelectric pressure/force transducer A pressure/force transducer having a sensor body with a load-receiving member at one end, a load button positioned within the sensor body and having a curved surface in surface-to-surface continuous contact with the load-receiving member, a piezoelectric ... | 07/07/1998 |
| 5714695 | Helical load cell A helical load cell is disclosed which is capable of accurately measuring axially applied forces, whether the force is applied axially within the diameter of the helical coil or outside of the coil diameter. A pair of strain gage modules are disposed on d... | 02/03/1998 |
| 5509317 | Load cell mounting A load cell mounting arrangement for a load cell having first and second ends and a pair of output terminals across which an output signal appears when the load cell is subjected to compressive stress exerted between the first and second ends. The mountin... | 04/23/1996 |
| 5497669 | Force measuring device Force measuring device including a rigid, piston-type inner element (2) and a rigid, cylindrical outer element (4) having an interior conture complementary to the peripheral surfaces of the inner element (2); a narrow annular gap (3, 3a, 3b) between surfa... | 03/12/1996 |
| 5247840 | Bending element for a force-measuring apparatus A force measuring apparatus comprises a steel base body and a bending element joined thereto. The bending element comprises a composite of at least first and second layers. The first layer is comprised of steel and is welded to the base body. The second l... | 09/28/1993 |
| 5209119 | Microdevice for sensing a force A microsensor or micromechanical device based upon the piezoelectric properties of thin film lead zirconate titanate (PZT) with a thickness of between 0.1 and 5 microns. The thin film PZT is sandwiched between first and second electrodes which are provide... | 05/11/1993 |
| 5036714 | Coupling device for controlling axial thrust forces The present invention provides an apparatus for recording the axial force exerted by a coupling device. This apparatus measures the pressure which the axial force exerts on an elastomer-type spring-like element and for this purpose a pressure sensor is mo... | 08/06/1991 |
| 4982611 | Multiple-degree-of-freedom sensor tip for a robotic gripper A sensor tip (10) for use in a robotic hand has a three-dimensional compliant elastomeric body (12) with an outer boundary (22) having a circular base (24) and a convex surface (26) extending therefrom. Four strain transducers (14, 16, 18, and 20) produce... | 01/08/1991 |
| 4964302 | Tactile sensor A sensor comprising a deformable medium, such as rubber, an ultrasonic transducer for transmitting a signal through the medium to a face of the medium and for sensing an echo of the signal returned from the face through the material to the transducer and ... | 10/23/1990 |
| 4864874 | Force 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 |
| 4827240 | Force measuring device A force measuring device includes a rigid base plate and a first diaphragm symmetrical about a central normal axis and arranged in spaced parallel relationship to the base plate. An elastic connection between the base plate and a peripheral rim of said fi... | 05/02/1989 |
| 4770050 | Force or pressure measuring device Force or pressure measuring device. Between a support member and a force or pressure introduction member elastomeric material is provided which strongly adheres to the two members and is in contact with at least one pressure sensor. With a preferred embod... | 09/13/1988 |
| 4754653 | Force measuring device The force measuring device comprises two plates arranged essentially parallel to each other and having therein between an elastomeric material into which a pressure sensor is embedded.... | 07/05/1988 |
| 4641539 | Sensor responding to the action of a force A sensor (10) responding to the action a force comprises a base body (12) and a force takeup element (14) which is connected to the base body (12) via at least one support element (16, 18, 20, 22). The support element deforms under the influence of a forc... | 02/10/1987 |
| 4512189 | Liquid quantity detecting device A liquid quantity detecting device includes a float-type liquid-quantity meter and a torsion bar-type liquid meter. In the float-type liquid-quantity meter, the liquid quantity is detected by a float in a tank and the position of the float is converted to... | 04/23/1985 |
| 4487079 | Dual range force transducer A force transducer producing two output signals having different proportionalities to the magnitude of a force applied to a force receiving platform cantilevered from a base through a C-shaped flexure producing a displacement of the platform proportional ... | 12/11/1984 |
| 4350048 | Measuring journal for the conversion of force to electric signal The measuring journal according to the invention permits the construction of a measuring body which solves the troublefree transmission of a force between the structural elements, when measuring is carried out with the conversion of forces to electric sig... | 09/21/1982 |
| 4329881 | Extremely sensitive force detector A device having a movable element which floats in a force field. Such placement allowing a minimum of friction. Such element is so placed that it can continuously interrupt and vary an energy field, which variation is then detected as a signal and amplifi... | 05/18/1982 |
| 4320667 | Load transducer A load transducer includes a hollow body and a movable control element mounted in the body and extending through the body to an external surface of the body so that an external mechanical load can be applied to the control element to move the control elem... | 03/23/1982 |
| 4295379 | Gage to measure track tension A pair of flanged telescoping covers houses a main spring comprising two osed Belleville discs, which provide the elastically deformable metal that is squeezed when the gage is placed between the track and an idler wheel. Cam mechanism occupies a central... | 10/20/1981 |
| 4287776 | Force transducer In a force transducer for producing an output signal proportional to the magnitude of a force applied to a force receiving platform cantilevered from a base through a compound flexure unit, comprising: (a) a C-shaped flexure having a thin, flexible middle... | 09/08/1981 |
| 4273204 | Capacitive force load cell for weighing scale A weight scale includes a capacitive force load cell for linearly transducing force into electrical capacity. A C-shaped spring supports two capacitor plates adjacent the distal ends of the arms with the surfaces of the plates being normally parallel. Wei... | 06/16/1981 |
| 4258565 | Force detector A force detector for detecting a force directly as a stress is disclosed which includes a piezoelectric unit for detecting a stress, a vessel for housing the piezoelectric unit, and a seal member for sealing the piezoelectric unit firmly and integrally in... | 03/31/1981 |
| 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 |
| 4089036 | Capacitive load cell A capacitive type load cell utilizing a support, a diaphragm member mounted with respect to said support for movement relative thereto, said diaphragm having a conductive surface, and a capacitor plate attached to the diaphragm so that upon deflection of ... | 05/09/1978 |
| 4081996 | Force-measuring devices Force-measuring devices are provided for measuring the force transmitted between two members, including a force-transmitting element of resiliently deformable material and of generally C-shaped cross-sectional configuration having inner and outer generall... | 04/04/1978 |
| 4079624 | Load washer transducer assembly A load washer transducer assembly includes a cylindrical housing symmetrically disposed about a given axis and having a longitudinal central aperture extending from a top to a bottom surface. The loop and bottom surfaces each have a peripheral flange coax... | 03/21/1978 |
