Quotables
"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7748129 | Apparatus and method for measuring the trigonometric cosine and trigonometric sine of an angle An apparatus for displaying or measuring a trigonometric sine or cosine is provided, which includes a planar surface with a circle or a portion thereof and a bisecting line through the center of the circle. Two arms are attached to the apparatus. The circle, bisecti... | 07/06/2010 |
| 7278217 | Trigonometric teaching aid A trigonometric teaching aid for providing students with real life applications for the principles of trigonometry includes a transit assembly having a sight tube with cross hairs, a level and an upper protractor pivotally connected to an upper end of a vertical sca... | 10/09/2007 |
| 6823603 | Device for enabling a single user to easily and accurately mark right and oblique angles and method for employing same The present invention is directed to an apparatus and method for marking an angles relative to a baseline, the apparatus comprising two elongate arms, one arm having a length greater than that of the other, the arms being pivotally joined at one end by a connecting ... | 11/30/2004 |
| 5894671 | Compass with angle trisecting capability A new geometric instrument-compass for a practical use that allows the trisection of an arbitrary angle as well as retains its effective functionality for operations that can be performed by the conventional compass is disclosed. The design proposed makes... | 04/20/1999 |
| 5639966 | Machine height measuring method and machine height measuring device for surveying machines A method of measuring machine height of a surveying machine includes setting a surveying machine such that the machine center situates on a vertical line passing through a measuring point defining a crossing point between a horizontal line passing through... | 06/17/1997 |
| 5142787 | Means and method for defining a layout A layout for a static structure, such as a building or the like, is defined using a plurality of triangles and a plurality of tethering cables. The layout is effected by measuring from a property line for a starting point and for a length of a base line. ... | 09/01/1992 |
| 5029397 | Method of measuring a vehicular frame to determine alignment A method of measuring a vehicular frame to determine alignment, where measurements provided in the manufacturer's specifications are known. The method consists of the following steps. Firstly, establishing at least one reference point spaced from a vehicu... | 07/09/1991 |
| 4575943 | Right angle measuring apparatus Apparatus for marking a reference line on a working surface at a predetermined angle or disposition from an established base line. Three tape measures each have a housing and a retractable tape extending therefrom. The free ends of each tape are connected... | 03/18/1986 |
| 4381607 | Carpenter's tool A tool for use by carpenters and the like for conveniently establishing a reference line on a working surface at a predetermined angular disposition from an established base line on said surface. The tool includes an elongated member from which angle line... | 05/03/1983 |
| 4347669 | Navigational calculating device This disclosure relates to a new navigational calculating device which provides a mechanical means of solving position finding problems by solving a plane right triangle. It is an alternative to traverse tables, trigonometric formulas, and chart plotting ... | 09/07/1982 |
| 4270278 | Wind vector resolution device The disclosure teaches a device for creating an infinite number of vector triangles such that a vehicle's speed may be set as one leg of a vector triangle and the apparent wind's speed and direction may be set as a second leg, solution of the third leg yi... | 06/02/1981 |
| 4208805 | Navigational calculating device This disclosure relates to a new navigational calculating device which provides a mechanical means of solving position finding problems by solving a plane right triangle. It is an alternative to traverse tables, trigonometric formulas, and chart plotting ... | 06/24/1980 |
