Spring mechanism for power device

US10952833B2 · kind B2 · utility

Assignee

• Ranir, LLC · US

Inventors

• Scott P. Crossman · Rockford, US
• Kevin J. Kollar · Ada, US
• Kevin G. Yost · Evanston, US
• Dai Xiaoguo · 马宅镇, CN
• Michael A. Andrew · Milford, US
• Thomas P. Blandino · Madison, US
• Stephen J. Dieter · Oregon, US
• John C. Mehnert · Madison, US
• Andrew P. WILKE · Madison, US
• Mark A. Penrod · Delton, US

Key dates

• Filing date: Dec 4, 2014
• Grant date: Mar 23, 2021
• Expiry date: Jun 14, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/18856
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A spring mechanism for attaching to a power device drive unit includes a housing connectable to a portion of the power device and a shaft extending through the housing. One end of the shaft is coupled to a workpiece and a bottom member extends from the other end and is positioned adjacent the drive unit. The bottom member includes at least one of a ferromagnetic material and a permanent magnet. The bottom member, shaft and workpiece move upon actuation of the drive unit, and a spring extends laterally outwardly from the shaft between the shaft and the housing. The spring is affixed to one of the shaft and the housing, wherein the spring bends between a deformed position and a return position upon the movement of the bottom member.