The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 1997
Filed:
Jul. 02, 1996
Applicant:
Inventor:
Eric Watts, Long Beach, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; B43L / ;
U.S. Cl.
CPC ...
33 / ; 33494 ; 235 69 ;
Abstract
This invention pertains to a new type of ruler for measuring the angle of inclination of a portion of terrain from a topographical map. Topographical maps contain precise information relating to elevation changes and distances. These two pieces of information can be used together to devise a scale to measure the angle of inclination, or pitch, of any slope represented on the map. The invention is simply the inscription of such a scale on a straight, flat material. The invention can be made with a unique scale for any given map scale and contour interval height.