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:
Apr. 02, 1991
Filed:
Jul. 19, 1982
Applicant:
Inventor:
Randall J Wright, Brookfield, WI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C / ;
U.S. Cl.
CPC ...
33379 ; 33389 ;
Abstract
A level vial for use in connection with a level instrument for determining angular relationships wherein the geometry of the internal vial components and, in particular, the bore and core surfaces co-act with the bubble to produce a level vial having an increased radius of curvature while maintaining standard sensitivity and having the capability of providing a visual measure of a relatively wide range of angular deflections from horizontal.