Robert Blane Christensen
Plumbers in Perry, UT
License number
Utah 269034-5509
Issued Date
Jul 1, 1994
Expiration Date
Nov 30, 2008
Category
Plumber
Type
Apprentice Plumber
Address
Address
Perry, UT
Professional information
Template For Marking Rounded Corners
US Patent:
5285580, Feb 15, 1994
Filed:
Oct 9, 1992
Appl. No.:
7/958893
Inventors:
Robert J. Christensen - Brigham City UT
International Classification:
B43L 1320
US Classification:
33565
Abstract:
A device for making an arc of a predetermined radius at a square corner of a workpiece includes a positioning member having first and second edge members which are joined together at a right angle so that the positioning member may be seated against the square corner and an arc member extending across a portion of the right angle formed between the first and second edge members. The arc member is planar with the positioning member disposed on and extending from the arc member. The device may also include multiple positioning members and multiple arc members having different arc radii. A method of marking an arc of a predetermined radius at a square corner of a workpiece includes the steps of providing a device that has a positioning member having first and second edge members joined together at a right angle such that the positioning member may be seated against the square corner and an arc member extending across a portion of the right angle formed by the edge members, positioning the device such that the positioning member is in a seated position against the square corner and the arc member is disposed against the surface of the workpiece to be marked; and marking the arc on the surface of the workpiece by holding a marking implement against the arc member and, while moving the marking implement along the arcuate edge, pressing the marking implement against the workpiece to leave a mark.