Apparatus for producing a reference plane
December 31, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3771876 3822943 Light transmitter Apparatus for establishing a level plane Reference plane production Penta-prism module having laser alignment error detection and correction capability Apparatus and method of measuring surface heights Laser apparatus for effectively projecting the axis of rotation of a rotating tool holder Three dimensional laser beam survey system Apparatus and method for projection of reference planes of light InventorApplicationNo. 10334760 filed on 12/31/2002US Classes:33/286, Alignment device33/276, Multisight line33/281, Vertical and horizontal angle measurer356/138, ANGLE MEASURING OR ANGULAR AXIAL ALIGNMENT33/290, Level (i.e., surveyor's type)356/247, FIDUCIAL INSTRUMENTS356/73, PLURAL TEST356/248, Artificial reference33/291, Self leveling359/629, By partial reflection at beam splitting or combining surface33/227, STRAIGHT-LINE LIGHT RAY TYPE340/974, Attitude372/107, Mirror support or alignment structure356/399, BY ALIGNMENT IN LATERAL DIRECTION33/283, Having gravity responsive indicating means (e.g., pendulum, etc.)359/197, Using a periodically moving element (periodic change of optically reflecting, refracting or diffracting element)356/250, Pendular suspension of optical element or reticle385/115, OPTICAL FIBER BUNDLE250/203.1, Following a target (e.g., a star or instrument pointer or other object) other than a pattern356/143, Artificial reference356/148, Artificial reference359/641, COLLIMATING OF LIGHT BEAM359/618, SINGLE CHANNEL SIMULTANEOUSLY TO OR FROM PLURAL CHANNELS (E.G., LIGHT DIVIDING, COMBINING, OR PLURAL IMAGE FORMING, ETC.)362/259Laser typeExaminersPrimary: Gutierrez, DiegoAssistant: Guadalupe, Yaritza Attorney, Agent or FirmInternational ClassG01C015/00AbstractThe present invention provides an apparatus and method for projecting a reference plane. The invention features emitting a light beam, splitting the light bean into two or more resulting beams, and converting the resulting beams into respective projected lines. The projected lines can be used to indicate a reference plane that substantially spans greater than 90 degrees from a reference point. The invention also features at least two lasers configured and arranged to emit a laser beam. An optical element corresponds to each laser to convert each laser beam into an output line that are projected to form only a single reference plane.Field of SearchSTRAIGHT-LINE LIGHT RAY TYPEProcess Multisight line Common viewpoint Vertical and horizontal angle measurer Vertical angle Having gravity responsive indicating means (e.g., pendulum, etc.) Including distance finding feature Horizontal angle measurer Alignment device Level (i.e., surveyor's type) Self leveling With damper or governor for sensor Magnetic | |
