Patent · US Active

Level

US8910390B2 · kind B2 · utility

23Cited by

69References

20Claims

0Family size

Assignee

Milwaukee Electric Tool Corporation · US

Inventors

Michael S. Steele · Waukesha, US
Wade F. Burch · Wauwatosa, US

Key dates

Filing date	Oct 11, 2012
Grant date	Dec 16, 2014
Priority date	—
Expiry date	Jun 12, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH02G2200/30
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A level for indicating the orientation of a surface includes a first planar surface, a second planar surface, a web coupled to the first planar surface and the second planar surface such that the first planar surface is spaced apart from and is parallel to the second planar surface, and a vial having a long axis and containing a liquid and a gas bubble. The level also includes a first magnet coupled to the first planar surface, a second magnet coupled to the first planar surface and spaced apart from the first magnet by a first distance, and a third magnet coupled to the first planar surface and spaced apart from the second magnet by a second distance that is different than the first distance. The first, second, and third magnets are positioned along the first planar surface successively without any additional magnets positioned therebetween.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.