Patent · US Active

Level

US7676940B2 · kind B2 · utility

10Cited by

15References

22Claims

0Family size

Assignee

THE STANLEY WORKS LTD · US

Inventors

James Spaulding · Bristol, US
Joseph R. Martone · Bristol, US

Key dates

Filing date	Jun 24, 2008
Grant date	Mar 16, 2010
Priority date	—
Expiry date	Aug 21, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01C9/28
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A level includes a body having first and second arms attached to each other for relative pivotal movement about a pivot axis between open and closed positions. The level also includes a bubble vial mounted to the body and having a longitudinal axis coaxial with the pivot axis. Movement of the arms from their closed position to their open position exposes a measurement portion of the first bubble vial for use. Movement of the arms from their open position to their closed position shields the measurement portion of the first bubble vial within the body to protect the bubble vial from damage during storage.

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