Patent · US Expired

Door frame for a motor vehicle

US6305738A · kind A · utility

2Cited by

17References

10Claims

0Family size

Assignee

Benteler Aktiengesellschaft · US

Inventors

Ludger Gehringhoff · Paderborn, DE
Christian Smatloch · Paderborn, DE
Dieter Topker · Paderborn, DE

Key dates

Filing date	Nov 17, 1999
Grant date	Oct 23, 2001
Priority date	—
Expiry date	Nov 17, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60J5/0444
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A door frame for motor vehicles includes a window channel laterally defined by an outer door panel and an inner door panel, wherein the outer door panel and the inner door panel are provided adjacent of the window opening with longitudinally extending stiffening or reinforcement members located in the window channel. The reinforcement members are circumferentially closed tubular sections having an essentially oval cross-section, wherein the reinforcement members are adapted in their shape to the inner surfaces of the outer door panel and the inner door panel.

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