Tree trimming apparatus

US7422041B2 · kind B2 · utility

Inventors

• George E. Smith · Sunnyvale, US
• John Crews · Garland, US

Key dates

• Filing date: Dec 22, 2004
• Grant date: Sep 9, 2008
• Expiry date: Dec 30, 2024

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01G23/0955
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

“A tree trimming device that automatically climbs a tree or other vertical member and shears limbs or debris as it climbs has an anchor structure with substantially horizontal clamps, a cutting assembly with substantially horizontal clamps, vertical connecting pistons, and a cutting blade assembly.”