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| Number | Title | Issue Date |
| 7350309 | Extendable spacer device A spacer device for laser-optical measurement of hollow cylinders has at least two, preferably three arms which are coupled or interlaced with one another and which can be moved relative to one another. Each of the arms has a measurement roller on one end which is b... | 04/01/2008 |
| 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 |
| 6820345 | Folding carpenter's square, bevel, and sliding bevel A combination carpenter square and bevel/sliding bevel having three triangle-shaped adjoining legs, with an articulating joint between the hypotenuse leg and each adjoining leg. The other two non-hypotenuse legs are capable of forming a substantially 90 degree angle... | 11/23/2004 |
| 6662460 | Folding carpenter's square, bevel, and sliding bevel A combination carpenter square and bevel/sliding bevel having three triangle-shaped adjoining legs, with an articulating joint between the hypotenuse leg and each adjoining leg. The other two non-hypotenuse legs are capable of being latched or detached by... | 12/16/2003 |
| 6334261 | Collapsible square A collapsible square constructed according to the principles of the present invention includes a first elongated rigid leg having first and second ends and a second elongated rigid leg having first and second ends. The second elongated rigid leg is pivota... | 01/01/2002 |
| 5974677 | Layout tool for laying out perpendicular lines The layout instrument or tool of this invention includes a pair of members arranged together to form an "L" at a right angle. The unique feature of this arrangement is that the two opposing ends of the "L" are also affixed to another member changing the s... | 11/02/1999 |
| 5384967 | Collapsible rafter square A square is disclosed which is especially adapted for the marking of angular dimensions on, or the transfer of angular dimensions from, rafters or other building materials and the like in that only one adjustment is needed to vary the angle being marked o... | 01/31/1995 |
| 4916822 | Angle and distance measuring instrument An angle measuring instrument provides two straight arms connected at one end for relative pivotal movement. A telescoping assembly includes two elongated telescoping members each providing a free end. The free end of one telescoping member is pivotally c... | 04/17/1990 |
| 4872267 | Measuring device A measuring device is in the form of a triangle with the three legs and associated angles of the triangle being selectively adjustable. Each leg of the triangle is formed by two elongated strips secured in spaced parallel relation. A slot is formed betwee... | 10/10/1989 |
| 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 |
