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A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.
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| Number | Title | Issue Date |
| 5479431 | Solid-state laser with active etalon and method therefor An active etalon comprising a laser gain chip interposed between an input mirror and an etalon end mirror is provided. In an intracavity frequency-doubled solid-state laser, a pump source emits pump radiation which passes through the input mirror and into... | 12/26/1995 |
| 5465493 | Pipe alignment apparatus and method using green light A pipe alignment system and method is provided for positioning a pipe line along a predetermined path. A light transmitter generates a reference light beam along which the pipe line is to be positioned. The light beam has wavelengths substantially in the ... | 11/14/1995 |
| 5450429 | Efficient linear frequency doubled solid-state laser A solid-state laser comprises a pump diode for generating pump radiation and transmitting the pump radiation into a laser cavity. The pump radiation passes through an entrance mirror and enters a laser gain chip which lases to produce fundamental laser li... | 09/12/1995 |
| 5440574 | Solid-state laser A solid-state laser for generating harmonic laser light substantially at a desired wavelength has a pump diode body made of a first material, which is preferably aluminum, having a first coefficient of expansion and a laser diode mounted in the pump diode... | 08/08/1995 |
| 5426507 | Laser-based pipe alignment device and method A pipe alignment device and method is provided for efficiently generating an air flow in sections of pipe such that the sections of pipe may be aligned along a prepositioned reference laser beam without refraction errors. A fan blade assembly is supported... | 06/20/1995 |
| 5420876 | Gadolinium vanadate laser An intracavity frequency-doubled solid-state laser uses a Nd:GdVO4 laser gain chip to generate a beam of visible laser light which may have wavelengths substantially in the green portion of the optical spectrum. A back end of the laser cavity i... | 05/30/1995 |
| 5375663 | Earthmoving apparatus and method for grading land providing continuous resurveying An earthmoving apparatus and method for grading a tract of land to a desired finish contour wherein a continuously updated contour map is displayed to the operator of the earthmoving apparatus during the grading process is provided. The earthmoving appara... | 12/27/1994 |
| 5335244 | Technique and apparatus using a moveable weak lens An assembly for use in a laser instrument which produces a plane of laser light by reflection from a cone. The assembly includes a weak focusing lens which improves the control over the planarity of the plane of light produced. Because it is weak, the wea... | 08/02/1994 |
| 5334987 | Agricultural aircraft control system using the global positioning system An aircraft control system for applying chemicals to an agricultural field in one of a plurality of flight patterns is provided. A global positioning system receiver receives radio frequency signals from satellites and the position of the aircraft is dete... | 08/02/1994 |
| 5301005 | Method and apparatus for determining the position of a retroreflective element A method and system for determining the position of at least one position retroreflective element in a predetermined frame of reference using two benchmark positions of known coordinates. A light transmitting and detecting means and a reference retrorefle... | 04/05/1994 |
| 5287627 | Automatic plumb and level tool with acoustic measuring capability An automatic plumb, level, pointing and distance measuring tool uses a visible laser diode to project a beam in any of several different modes through a beam exit window. The tool, approximately the size and shape of a tape measure, can be placed on one e... | 02/22/1994 |
| 5257279 | Adjustable focus technique and apparatus using a moveable weak lens An assembly for use in a laser instrument which produces a plane of laser light by reflection from a cone. The assembly includes a weak focusing lens which improves the control over the planarity of the plane of light produced. Because it is weak, the wea... | 10/26/1993 |
| 5227864 | System for leveling workpieces A laser alignment apparatus is provided for use in positioning workpieces relative to one another and first and second spaced-apart substantially parallel reference planes. The laser alignment apparatus comprises a first projector for providing first and ... | 07/13/1993 |
| 5225928 | Focus compensating lens for use in extreme temperatures A focus compensating lens structure wherein a lens means for collimating laser light produced by a source has an index of refraction which varies with temperature and wavelength to compensate for temperature effects on the wavelength of light produced by ... | 07/06/1993 |
| 5182863 | Automatic plumb and level tool with acoustic measuring capability An automatic plumb, level, pointing and distance measuring tool uses a visible laser diode to project a beam in any of several different modes through a beam exit window. The tool, approximately the size and shape of a tape measure, can be placed on one e... | 02/02/1993 |
| 5166831 | Light beam deflecting apparatus including a fluid A light beam deflecting apparatus is provided for diverting a light beam from an initial path. The apparatus includes first and second substantially transparent plates. The light beam passes through the first and second plates when the first and second pl... | 11/24/1992 |
| 5144486 | Laser beam apparatus for providing multiple reference beams A laser beam projector apparatus is provided and includes a laser tube for producing a primary light beam in an initial path. A first beam diverter is included for diverting a first portion of the primary beam into a first direction to emerge from the app... | 09/01/1992 |
| 5142963 | Load referenced pressure reducing valve A load-referenced, pressure reducing valve, and a system which incorporates one or more of such valves provide needed response to rapidly changing hydraulic system load demands which are experienced with automatic control systems. The valve provides rapid... | 09/01/1992 |
| 5107932 | Method and apparatus for controlling the blade of a motorgrader A method and apparatus are disclosed for controlling the cross slope angle cut by the blade of an articulated frame motorgrader being steered through a turn, operated in a straight frame mode, in a crabbed steering position and/or traveling in a non-horiz... | 04/28/1992 |
| 5095629 | Laser beam target A laser beam target for use with a projector capable of providing a reference laser beam of light traveling in a predetermined path is provided and includes a main body portion having first and second surfaces. A plurality of projections are provided on a... | 03/17/1992 |
| 5078215 | Method and apparatus for controlling the slope of a blade on a motorgrader A method and apparatus is provided for controlling the parallel blade slope angle of a blade in order to maintain a desired cross slope during normal operation of a motorgrader regardless of whether the motorgrader is turning, the front wheels are side-ti... | 01/07/1992 |
| 5076690 | Computer aided positioning system and method A position sensing system calculates the X-Y coordinates of a point using triangulation and determines the direction in which the point is moving. The triangulation calculation is based on the coordinates of at least three retroreflective elements spaced ... | 12/31/1991 |
