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 |
| 6323637 | Miniature crossed coil gauge having an active flux ring A miniature crossed coil gauge is provided having an oriented rare earth magnet fixedly mounted on a rotary shaft for supplying a magnetic flux directed transverse to the shaft axis. The gauge housing provided by an upper and lower bobbin surrounds the ma... | 11/27/2001 |
| 6304072 | Pointer resetting mechanism for a magnet disc operated gauge A pointer resetting mechanism for a magnet disc operated gauge mainly adapted for use in vehicles is made up of a coil spring particularly housed together with a floatable magnet disc for protection in a sealed shelter case and at least an auxiliary magne... | 10/16/2001 |
| 6216630 | Bearing arrangement and indicating instrument using the same In a bearing arrangement, a rotary shaft has an annular groove opposite a bearing portion so that a part of the annular groove extends outward from the bearing portion, and lubrication oil is disposed between the rotary shaft and the bearing portion.... | 04/17/2001 |
| 6190049 | Fluid thrust bearing for indicating instruments and the like The present invention is a novel fluid thrust bearing system and method for assembling the same. When used in an indicating instrument, the fluid thrust bearing of the present invention reduces the number of necessary parts and simplifies assembly when co... | 02/20/2001 |
| 6046583 | Miniature crossed coil gauge having an active flux ring A miniature crossed coil gauge is provided having an oriented rare earth magnet fixedly mounted on a rotary shaft for supplying a magnetic flux directed transverse to the shaft axis. The gauge housing provided by an upper and lower bobbin surrounds the ma... | 04/04/2000 |
| 5582129 | On-vehicle display An on-vehicle display apparatus includes an analog meter mounted with a display surface facing downwardly within a meter hood of an instrument panel of a vehicle. A reflector is disposed below the meter to reflect a display image of the analog meter throu... | 12/10/1996 |
| 5399966 | Induction watt-hour meter rotary disc mounting and bearing system An electro-mechanical induction watt-hour meter bearing system that includes end cap pilot bearings snap fit onto respective opposite ends of the shaft. The bearing system also includes a lower shaft support bearing selectively adjustable in increments fo... | 03/21/1995 |
| 5079508 | Electric power meter adjustment and indication method and apparatus A method and apparatus for adjustment of the assembly of an electric power meter which rotates in response to power consumption which enables successive test positions to temporarily support the assembly without marking the bearing, and provides only a si... | 01/07/1992 |
| 5062135 | Cross coil type indicating gauge An indicating gauge for automobiles for displaying the amount of a measurement on a gauge board by a movement. The movement comprises a pair of coils for generating a combined magnetic field in response to a predetermined measurement amount, a magnet roto... | 10/29/1991 |
| 5061893 | Mounting for the rotary magnet of a rotary magnet-ratio meter The pointer shaft 1 of a rotary-magnet ratio meter is mounted by means of radial bearings (15 and 20 respectively) one near its pointer 2 and one at the end facing its rotary magnet 4. The lower radial bearing 20 arranged near the rotary magnet 4 is forme... | 10/29/1991 |
| 5012184 | Adjustment of disposition of rotation axis in moving coil measuring instruments to correct for their non-ideal operation A moving coil measuring instrument wherein at least one end of the axis (3) of rotation of the moving coil (1) is supported so as to permit adjustment of that end of the axis (3) in a direction substantially perpendicular to the axis (3), such adjustment ... | 04/30/1991 |
| 4988944 | Cross coil type instrument A cross coil type instrument includes a plurality of coils cross-arranged around a movable permanent magnet, a needle fastened to the movable permanent magnet through a shaft projecting from the movable permanent magnet and penetrating the coils, a reset-... | 01/29/1991 |
| 4977369 | Ferromagnetic measuring apparatus A ferromagnetic measuring apparatus comprising a shaft on which is fixed a needle displaceable over a dial, and a first metallic plate. The shaft is pivotally mounted at its ends, in bearings, within the housing of a coil body, for displacement relative t... | 12/11/1990 |
| 4956601 | Apparatus for measuring an electrical quantity with an adjustable zero position and double pivot arrangement Apparatus for measuring an electrical quantity comprises a fixed body and a movable device having a pivot shaft fixed to an indicator needle which moves in front of a graduated scale. The movable device is pivotably mounted in the fixed body by pivot pins... | 09/11/1990 |
| 4929891 | Exciting unit for internal magnet type meters An exciting unit used in an internal magnet type meter, wherein a spacer, having a thickness corresponding to the length of a gap, is attached to the circumference of a permanent magnet and a screw is fitted in a yoke so that the permanent magnet may be m... | 05/29/1990 |
| 4751456 | Arrangement for or in moving iron or moving coil instruments An arrangement for moving coil or iron instruments with an axis and a moving member attached thereto. The moving member is a moving coil or iron designed in the shape of a circular segment and has one or two arms at the axis for retention and for fixing i... | 06/14/1988 |
| 4745813 | Extended spindle electric gage mechanism An electric gage driving a pointer has an extended spindle so that the gage movement can be substantially spaced from the pointer. The gage includes a spindle, an armature driving the spindle, a bobbin supporting a bearing for the spindle and electrical c... | 05/24/1988 |
| 4617514 | Disk and gear mounting in electric watthour meter A watthour meter frame for an electric watthour meter includes pairs of orthogonal machined plane surfaces against which bearings are urged for accurately positioning the ends of a disk shaft of an electric watthour meter. Clearances are provided in the w... | 10/14/1986 |
| 4564806 | Taut band instrument having accurate taut band positioning means A taut band instrument having a moving coil hung by a pair of taut bands to measure electrical current and the like by way of rotating a moving coil in magnetic field. A pair of boss members are provided to hold the moving coil and the boss members includ... | 01/14/1986 |
| 4490672 | Breakway meter pointers and shafts A register pointer for an electric utility meter is described as having a weakened section at which fracture can occur to break away the pointer when an attempt is made to tamper with the pointer, such as by manually resetting the pointer's position on th... | 12/25/1984 |
| 4340260 | Magnetic suspension bearing A magnetic suspension bearing for a rotating body having at least two magnet systems of coaxial permanent magnets arranged sequentially along the axis of rotation of the rotating body. Each magnet system is provided with two permanent magnets disposed on ... | 07/20/1982 |
| 4335351 | Moving magnet electrical meter with single pivot pin for the moving magnet and a fixed return magnet The invention contemplates a moving-magnet meter movement wherein frame structure to pivotally support the moving element also includes coil-supporting bobbin structure, so that a fixedly mounted coil can be wound directly on the frame structure after ass... | 06/15/1982 |
| 4331916 | Meter movement having reinforced armature assembly A reinforced bobbin which when wound with a sensing winding forms the armature of a D'Arsonval movement measuring instrument. The reinforced bobbin consists of a thin elongated open rectangular bobbin with detent holes centered along the axis of revolutio... | 05/25/1982 |
| 4326413 | Liquid-level gauge for vehicles A liquid-level gauge includes an indicator for indicating an amount of fuel corresponding to a liquid level of the fuel detected by a liquid level detector mounted within a fuel tank of a vehicle. The indicator used is of the leaving pointer type in which... | 04/27/1982 |
| 4237418 | Electrical current indicating meter A compact and symmetrically arranged construction for electrical current indicating meters of small size. The novel construction for a meter comprises a unitary frame member combined with concentrically arranged components.... | 12/02/1980 |
| 4223266 | Adjustable spring regulator for setting indicating instrument pointer Adjustment of an electrical measuring instrument of the D'Arsonval type is achieved by rotation of an annular leaf spring contact mounted to rotate between an annular plate and a flanged eyelet extending through the plate and leaf spring. A conducting coi... | 09/16/1980 |
| 4062316 | Flexible instrument pointer A flexible pointer is provided for use as a movable indicator, hand or arm on such devices as dial indicators, movable arms for electrical contacting devices, and the like. The pointer is comprised of a pair of strips of spring material joined at their up... | 12/13/1977 |