Negative stiffness apparatus

US9587701B2 · kind B2 · utility

Assignee

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

• Dvir Brand · Hod HaSharon, IL
• Avshalom Suissa · Renningen, DE
• Alon Capua · Afula, IL

Key dates

• Filing date: Jun 1, 2015
• Grant date: Mar 7, 2017
• Expiry date: Jun 11, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F2228/063
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A negative stiffness apparatus includes a fluid filled bellows interposed between a first surface and a second surface wherein the bellows and the first and second surfaces have an orientation of substantial equilibrium between the first and second surfaces. The bellows and the first and second surfaces include other orientations wherein the first and second surfaces are displaced from the orientation of substantial equilibrium and the bellows exerts a displacement force to urge the first and second surfaces further away from the orientation of substantial equilibrium.