Compliant backrest

US11819139B2 · kind B2 · utility

Assignee

• Steelcase Inc. · US

Inventors

• Nickolaus William Charles Deevers · Holland, US
• Kurt R. Heidmann · Grand Rapids, US
• Pascal Rolf Hien · Radebeul, DE
• Jeffrey A. Hall · Birmingham, US
• John Colasanti · Jenison, US
• Michael Yancharas · Ferguson Road, US

Key dates

• Filing date: Jan 13, 2023
• Grant date: Nov 21, 2023
• Expiry date: Jan 13, 2043

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47C31/02
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

A backrest includes a primary frame having a pair of laterally spaced first uprights defining a first opening therebetween, a first front surface and a first rear surface. A secondary frame includes a pair of laterally spaced second uprights defining a second opening therebetween, a second rear surface facing the first front surface of the primary frame and a second front surface, wherein the secondary frame is coupled to the primary frame, and wherein at least portions of the first and second openings are aligned. A flexible shell overlies and is coupled to the second front surface of the secondary frame. The flexible shell includes a third rear surface visible through the aligned portions of the first and second openings.