Combination C-shaped spring and system

US9769974B2 · kind B2 · utility

Assignee

• Deere & Company · US

Inventors

• Jacob W. Cross · Norwalk, US
• Luc Janelle · Ankeny, US
• Adam D. Sporrer · Ankeny, US
• Anthony Sikora · Urbandale, US
• Mark D. Beeck · Ankeny, US
• Richard J. Connell · Slater, US
• Robert T. Casper · Mingo, US
• John M. Schweitzer · Ankeny, US
• Dolly Y. Wu · Richardson, US

Key dates

• Filing date: Nov 18, 2014
• Grant date: Sep 26, 2017
• Expiry date: Oct 3, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F2230/007
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A C-spring contains an inner spring that is spaced apart from the outer primary spring. In one example usage, the upper and lower legs of the C-spring have rear regions respectively configured for being mounted to a tubular frame tool frame member of a ground working implement, such as a disk, and to a bearing housing.