Patent · US Active

Torsion spring system for convertible top

US8056957B2 · kind B2 · utility

0Cited by

12References

8Claims

0Family size

Assignee

Wilhelm Karmann GmbH · DE

Inventors

Frank Neubrand · Beverly Hills, US
Ryan Mitchell · Bothell, US
Wolfgang Richter · Haar, DE
Holger Schramm · Dietzenbach, DE
Sven Hollenbeck · Westerkappeln, DE

Key dates

Filing date	Mar 18, 2010
Grant date	Nov 15, 2011
Priority date	—
Expiry date	Jul 10, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60J7/1265
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A convertible top includes a linkage assembly that is movable between an extended position and a retracted position, with a mid position defined therebetween. A spring system assists movement of the linkage assembly from the extended position to the mid position and also from the retracted position to the mid position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.