Geometrical instruments inventions 02/07

20070039195 - Motorized chalk box: The motorized chalk box includes a chalk line reel having an internal ring gear. An electric motor drives a pinion gear, which engages the ring gear, thus resulting in a very compact assembly. The motor and gearing are sealed from the chalk dust reservoir, through which the chalk line passes.... Agent: Litman Law Offices, Ltd

20070039196 - Method for the in-process dimensional checking of orbitally rotating crankpins: An apparatus for checking the diameter of crankpins of a crankshaft in the course of the machining in a grinding machine includes a Vee-shaped reference device, a measuring device associated with the reference device and including a feeler axially movable along the bisecting line of the Vee-shaped reference device, and... Agent: Dickstein Shapiro LLP

20070039197 - Wireless tram gauge assembly: The present invention relates to a digital tram gauge assembly having an extendible elongate tram bar having a first height rod at a first end and a second height rod at a second end. A digital measuring device is positionable about the tram bar and is capable of digitally sensing,... Agent: Patent Department Larkin, Hoffman, Daly & Lindgren, Ltd.

20070033816 - Rapid workpiece engraving apparatus: An engraving apparatus for engraving workpieces includes a sliding assembly (10), a cutting tool assembly (40), and a driving mechanism (30). The sliding assembly includes at least one rail (11) and at least two worktables (13). The worktables are used for carrying the workpieces, and are slidably positioned on the... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang Jeffrey T. Knapp

20070033817 - Apparatus and method for measuring and controlling pendulum motion: A magnetically damped inclinometer has a shaft with attached pendulum that rotates. The rotation causes an index member to rotate past one or a set of magnets or electromagnets that are connected to the load. The magnet or electromagnet may be mounted directly the load or it may be in... Agent: Gregory Smith & Associates

20070033818 - Azimuth measurement device and azimuth measurement method: There are provided an azimuth measurement device and its method for realizing an update of an offset calculated from the data acquired by azimuth measurement. A geomagnetism output measured by a 3-axis magnetic sensor is amplified and input to an A/D conversion section. A chopper section is arranged for switching... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070033819 - Measuring methods for use on machine tools: On a machine tool, a program 12 receives data from a scanning or analogue probe P, measuring a feature of a workpiece W. This data is combined with assumed machine position data during the scanning movement. This avoids having to break into the servo feedback loop 24 to get actual... Agent: Oliff & Berridge, PLC

20070033820 - Head for the linear dimension checking of mechanical pieces: A gauging head includes a substantially closed casing, a movable arm with a first portion, partly located inside the casing and associated with a position transducer, and a second portion, outside the casing, carrying a feeler for contacting a piece to be checked, and a zero-sening mechanism for adapting the... Agent: Dickstein Shapiro LLP

20070033821 - Template for ruling index cards: The template for ruling index cards is a guide for marking a number of parallel lines on an unruled writing surface, such as a 3″×5″ index card. The template has a number of parallel slits spaced at predesignated distances from each other. Preferably, a template with horizontal slits is used... Agent: Litman Law Offices, Ltd

20070033822 - Drywall tool: A tool for use in cutting drywall is provided. The tool is comprised of a plate with at least one indentation it the top edge of the plate. The tool is placed flush against a piece of drywall so that the drywall may be cut with indentations matching the at... Agent: Ratnerprestia

20070033823 - Position sensor: A measuring-cable position sensor is provided in a pressure tight, in particular explosion protected manner, wherein all functional elements besides the cable drum and the measuring cable are located in a pressure tight housing, which is stable enough, so that also in case of an explosion in the interior of... Agent: Head, Johnson & Kachigian

20070022616 - Easy mark ruler: A tool for measuring and marking material, the tool is formed of an elongated sheet of rigid material such as wood, plastic or metal. Having on one edge of the sheet of rigid material, a series of equally spaced notches (6) that are sized to fit the point of a... Agent: Jerry S. Trainello

20070022617 - Invert measuring device: A measuring device for obtaining inlet invert measurements, pipe invert measurements, and pipe diameter measurements includes an invert measuring rod having a plurality of rod segments, each a threaded bore at a first end and an axially extending threaded stud at a second end, a foot assembly comprising a guide... Agent: Charles N. Quinn Fox Rothschild LLP

20070022618 - Method and apparatus for measurement of thickness and warpage of substrates: An apparatus comprises one or more pairs of mutually coaxial and opposing linear measuring devices including movable, biased fingers for simultaneously determining the thickness and warpage of a substrate such as a circuit board passing between the fingers. Each measuring device is calibrated to a zero point by bringing the... Agent: Trask Britt, P.C./ Micron Technology

20070022619 - Tool damage detection device: A tool damage detection device includes a contact rod for abutting against a side face of a rotating tool piece at a right angle. The contact rod is a beltlike hardening leaf spring with a width capable of spanning a spiral flute in the rotating tool piece. In view of... Agent: Kanesaka Berner And Partners LLP

20070022620 - Apparatus for measuring step height or depth against another surface: An apparatus for measuring step height or depth against another surface with a measuring arm mounted horizontally beside the scale which has a beveled end allowing precise readings regardless if the apparatus is being held perpendicular, the apparatus has exchangeable measuring arms with various reaching capabilities, and a handle mounted... Agent: Robert Alan Batora