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:
Jun. 25, 1996
Filed:
Oct. 02, 1995
Applicant:
Inventors:
Jerome Hartmann, Carlisle, IA (US);
John E Schenken, Des Moines, IA (US);
Charles A Haas, Des Moines, IA (US);
Assignee:
Cobbs Manufacturing Company, Des Moines, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C / ;
U.S. Cl.
CPC ...
33356 ; 33364 ;
Abstract
An adjustable magnetic compass for adjustably compensating for the magnetic variation between magnetic north and map north. The adjustable compass includes a compass dial having directional indicia applied thereto, and a lubber line for operative alignment relative to the directional indicia. The lubber line can be rotatably adjusted relative to the directional indicia so as to visually compensate for the magnetic variation between magnetic north and map north with respect to the geographic location in which the adjustable magnetic compass is to be located.