Patent · US Expired

Pneumatic control unit for at least partial opening of a movable body part of a motor vehicle

US6041690A · kind A · utility

0Cited by

8References

25Claims

0Family size

Assignee

Daimler-Benz AG · DE

Inventors

Dieter Feichtiger · Aidlingen, DE
Martin Lindmayer · Sulz, DE
Kurt Schaible · Aidlingen, DE

Key dates

Filing date	Feb 13, 1998
Grant date	Mar 28, 2000
Priority date	—
Expiry date	Feb 13, 2018

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF15B15/10
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A pneumatic drive unit is provided for partially opening a vehicle body part such as a trunk lid. The pneumatic drive unit includes a working chamber which in use applies pressure to move a control member which engages a contact surface of the vehicle body part. A vent channel is provided which selectively connects the working chamber with the atmosphere as a function of the position of a movable closing element of the drive unit element and contact of the control member with the vehicle body part such that when the body part is closed after a partial opening, the drive unit is ready for another control operation.

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