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:
Jan. 27, 2004
Filed:
Jun. 27, 2002
Wes Bowden, Emporia, KS (US);
Pedestal Corporation, Emporia, KS (US);
Abstract
A bubble level ( ) comprises a base ( ) and a vial ( ). The vial ( ) includes two inwardly sloped outwardly bowed interior side-walls ( ) and a top exterior surface ( ). The interior side-walls ( ) are aligned at an approximately forty-five degree angle to the top exterior surface ( ) and meet slightly below the top exterior surface ( ) at an approximately ninety degree angle. When a longitudinal axis of the level ( ) is horizontal, a bubble ( ) is centered with respect to graduations ( ) and thereby indicates that the level ( ) is level. This is true without regard to how the level ( ) is rotated about the longitudinal axis. For example, when the level ( ) is rotated so that the top exterior surface ( ) is aligned downwardly, the bubble ( ) is centered due to the effect of surface tension acting upon the bubble ( ) and against the interior side-walls ( ).