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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 |
| 7814670 | Laser level detection system A laser level detection system which detects a reference plane of laser at an arbitrary position includes a plurality of level detection units and an operation unit which displays a detection result of each of the level detection units and can operate each of the le... | 10/19/2010 |
| 7222430 | Object locator sight An object locator sight aiding a first person to communicate the location of a distant object to a second person provides a laterally elongate base, carrying upstanding forward and spacedly adjacent rearward panels. The forward panel is perpendicular to the base and... | 05/29/2007 |
| 7197829 | Laser guided celestial identification device Disclosed is a celestial identification device. According to some embodiments, the device includes a housing, a positioning sensor, and a light generator structured to generate an indicator beam that can be pointed at celestial objects. The positioning sensor can in... | 04/03/2007 |
| 7178477 | Adjustable pilot's tool for maintaining aircraft attitude A tool for use by a pilot as a reference for maintaining a desired aircraft attitude is provided. The tool is a simple mechanical tool that can be removably mounted adjacent to an aircraft windshield, in the pilot's field of view. The tool comprises a central shaft ... | 02/20/2007 |
| 7137209 | Level and protractor A level and protractor tool (100) includes a body (102) with three sections. The first section (106) includes a spring clip (108) mounted on the body. The spring clip is adapted to be attached to an item that is to be bent or otherwise me... | 11/21/2006 |
| 7127821 | Automated method and apparatus for distance measurement A device for measuring physical characteristics includes a beam generator selectively generating a target beam. The device further includes two angle detectors that measure the respective angles between the beams and, respectively a vertical and a horizontal axis. T... | 10/31/2006 |
| 7086162 | Method and apparatus for distance measurement A device for measuring physical characteristics includes a beam generator component generating first and second beams at two points. The device further includes a protractor that measures the angle between the beams. The device measures the distances to the two poin... | 08/08/2006 |
| 6948252 | Light projecting goniometer This device is a handheld, battery-operated instrument that utilizes light beams to project visible lines for increasing the accuracy in determining angles. A linear potentiometer is incorporated at the pivot point between the two diodes and measures a voltage chang... | 09/27/2005 |
| 6938457 | Phased array ultrasonic reference block The calibration device includes a guide surface and an angle gauge supported relative to the guide surface on a first side of the guide surface. The angle gauge is adjustable to measure a skew angle of the ultrasonic transducer on the guide surface. The angle gauge ... | 09/06/2005 |
| 6785972 | Method and system for recording a viewing point The present invention is a method and system for recording a point in space, which is to be used as the viewing point of from which the eye of an artist will view a copy easel and the subject to be copied. This viewing point is recorded so as to allow the artist to ... | 09/07/2004 |
| 6770000 | Apparatus and method for a golf alignment paddle The present invention 10 discloses an alignment paddle that allows the golfer 18 to identify a straight line between the golf ball 12 and the intended target 14. The hand held alignment paddle includes a vertical elongated aperture 26 ... | 08/03/2004 |
| 6724471 | Arrangement for the vertical orientation of a geodetic instrument An arrangement for the vertical orientation of a geodetic instrument over a ground point, comprises an optical observation device for visual sighting of the ground point with a target beam, a laser device for generating a laser beam, and an optical in-coupling eleme... | 04/20/2004 |
| 6636296 | Range finder A low-cost-of-manufacture, portable, capable-of-adjustment range finder for estimating distances between the user and one or more objects with a known width, height or other linear dimension (such as a cup on a putting green, a target for target shooting,... | 10/21/2003 |
| 6532675 | Device for measuring the angle of orientation with reference to a known frame of reference between a first object having a first axis and a second remote destination A device for measuring the angle of orientation with respect to a known frame of reference between a first object having a first axis and a second remote destination comprises a first arm member defining a first longitudinal axis and an object engaging su... | 03/18/2003 |
| 6405442 | Golf shot range finder For assisting a golfer to determine the yardage from a golf ball to a target golf hole and to select the proper base club for the golf shot, a flat card has an elongated aperture with its top edge spaced from its bottom edge at parallel intervals taken ac... | 06/18/2002 |
| 5594994 | Tree stand rangefinder and method of using the same A hand held device adapted to be used by an archer situated in an elevated position to aid in the determination of the approximate ground distance to a stationary or moving target in a simple and efficient manner in order that he might thereby increase hi... | 01/21/1997 |
| 5501018 | Tribrach device An improved tribrach device for attaching an optical sighting instrument to a support such as a tripod. The tribrach device includes a pivotable locking ring for securing the legs of the sighting instrument to the tribrach. The locking ring is biased towa... | 03/26/1996 |
| 5467531 | Tree stand rangefinder and method of using the same A hand held device adapted to be used by an archer situated in an elevated position to aid in the determination of the approximate ground distance to a stationary or moving target in a simple and efficient manner in order that he might thereby increase hi... | 11/21/1995 |
| 5394616 | Laser positioning device A laser positioning device is provided in which a level is associated with a demountable mounting set-up and a plate member. The plate member projects laterally from the level and is scribed with a protractor. A pointer is pivotally associated with the ap... | 03/07/1995 |
| 5124844 | Method and apparatus for locating celestial objects A method and an apparatus for locating in the sky celestial objects, using a telescope, wherein two guide stars and the celestial object are represented, according to their respective locations, on a disc which is able to rotate with respect to the telesc... | 06/23/1992 |
| 5054206 | Chain saw projection mensuration method and apparatus for determining the diameter of trees A projection scale apparatus and method uses a projection scale on the chain guide of a chain saw. The throttle of the chain saw may be continuously manipulated to prevent the saw from stalling while the diameter of a tree is measured with a scale provide... | 10/08/1991 |
| 5052114 | Golfers optical alignment instrument A golfing instrument that allows two dissimilar objects, one object presented to the right eye, and the second object presented to the left eye to be seen simultaneously by the golfer, which allows the golfer to align the intended target that the golf bal... | 10/01/1991 |
| 5038489 | Posture measuring instrument A hand held instrument for determining the degree of angular deviation of a line between selected points on a subject from a gravity-dependent reference, including a transparent base through which the selected points may be viewed and a gravity-dependent ... | 08/13/1991 |
| 5016357 | Artwork analysis device A convenient and economical artwork analysis device that visually aids an observer in determining the existence of geometric interrelationships among the artistic elements making up a work of art. The device includes a transparent sheet of synthetic resin... | 05/21/1991 |
| 4953303 | Tree felling spotter Disclosed is a specialized sextant of the clinometer type capable of providing the translation of the height of a tree (or any finite line) to a distance along the ground, (or any other orientation sharing a common end point with the first line) on any se... | 09/04/1990 |
| 4912853 | Reticle plate and method for establishment of a north-oriented or south-oriented line by circumpolar orientation A reticle plate provided with a reticle and three concentric circles of ving diameter and methods of use thereof, the invention allows a user to establish a north-oriented or south-oriented line by alignment of selected circumpolar stars with the circles... | 04/03/1990 |
| 4910875 | Longitude location device A longitude finder for locating the longitude on the earth of a defined location at which the user of the device is positioned. The device includes a reflective surface for viewing an image of one body in the solar system, such as the moon or a planet, wh... | 03/27/1990 |
| 4828377 | Telescope aiming device A sighting device for aiming an astronomical telescope. The sighting device comprises a tubular housing which is removably mountable in the eyepiece holder of the telescope. A light source is mounted within the tubular housing for projecting light into th... | 05/09/1989 |
| 4823476 | Method and apparatus for measuring physical attributes of a human body Method and apparatus are provided to measure a plurality of physical attributes of a human body in relation to the values of these attributes in a theoretically ideal human body. In one embodiment, by means of a novel proportional panel and measurement gu... | 04/25/1989 |
| 4754552 | Horticultural pruning template system and method of using same A horticultural pruning template system (10) is provided for aiding a user in pruning a horticultural object (12) to some predetermined contour. A template member (14) which is substantially transparent includes first indicia (18, 20, 22 or 24) formed the... | 07/05/1988 |
| 4734990 | Viewing apparatus A viewing apparatus for the purpose of separating a particular view from its surroundings and for the purpose of identifying the distance of the viewed object is disclosed. A viewing apparatus that attaches to and is used in conjunction with firearms weap... | 04/05/1988 |
| 4637143 | Plotting device A course plotting device comprises substantially parallel first and second legs, substantially parallel third and fourth legs which are pivotally connected to the first and second legs so that they cooperate therewith to define a collapsible parallelogram... | 01/20/1987 |
| 4601108 | Spacer device A spacer device for use in placing contour lines between known points of elevation when plotting stadia, in spacing of architectural units, and in making perspective drawings, includes a parallelogramic frame comprising a plurality of frame elements pivot... | 07/22/1986 |
| 4543727 | Determination and passing on of a target direction for tanks In a method of determining the direction of a target by means of an optical square and passing on this direction to a magnifying sight for warfare tanks the exit window (4) of the optical square is provided with a vertical line of sight (8) and the entry ... | 10/01/1985 |
| 4510695 | Method of calibration for the measuring of objects by pairs of theodolites The invention contemplates a method of calibration (FIG. 1) for determining the distance (base length Eb) between two angle-measuring instruments (theodolites 1, 2) used for triangulating measurement of coordinates of given points on larger obj... | 04/16/1985 |
| 4497117 | Slope compensating angle gauge The "Cruiser's Crutch" is a slope correcting basal area angle gauge to be used in variable plot sampling for determining basal area in square feet per acre. It incorporates the critical angle for the 10, 20, 30 and 40 basal area factors. This gauge enable... | 02/05/1985 |
| 4447962 | Adjustable bore target and gage A device having four engagement points movable along a bore and provided with an optical target or gage adjustable in cross directions normal to the bore axis and a probe mounted for rotation on the gage and engageable with the cylindrical surface of the ... | 05/15/1984 |
| 4417404 | Method and apparatus for measuring distances The invention discloses a method and device which allows one to measure distances from one object to a remote object, e.g., the distance from a driver of one car to a car ahead of him. The method allows an observer to determine easily and at any time the ... | 11/29/1983 |
| 4379364 | Artist's freehand sketching device A device for use by artists and others to aid in freehand sketching, comprising generally a base, a transparent sketching surface in an upright position and a chin rest less than an arm's length away from the sketching surface, said base being supported b... | 04/12/1983 |
| 4367949 | Aiming method and means A method of aiming or aligning in which two overlapping fields of view fixed with respect to each other are produced, one of which is inverted and reversed with respect to the other and superimposed thereon. Given a target in the overlapping fields of vie... | 01/11/1983 |
