Extendable edge reference tool

US8261459B2 · kind B2 · utility

Assignee

• D2M International PTY Ltd. · CN

Inventors

• Edward Cooper · Lafayette, US
• Jeff Hayashida · San Francisco, US
• Andrew Butler · Palo Alto, US
• David Titzler · Palo Alto, US
• Brian Lamb · San Francisco, US
• John E. Johnston · San Francisco, US
• Christopher Tacklind · Palo Alto, US

Key dates

• Filing date: Oct 4, 2010
• Grant date: Sep 11, 2012
• Expiry date: Nov 8, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G01B5/245
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An extendable edge reference tool is disclosed. A first segment having a extending end and a receptacle end is provided. The receptacle end includes a coupling mechanism for joining a second segment using an over-center locking force to secure said second segment to said first segment. This tool provides for a useful continuous reference edge over extended distances through adjoining segments. Each segment is suitably compact to be easy stowed. The segments are useful individually. The segments can be joined to extend tool to lengths useful in common construction tasks.