The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2001
Filed:
Aug. 30, 1999
Norbert Fischer, Sehnde, DE;
Roland Altsinger, Burgdorf, DE;
ContiTech Luftfedersysteme GmbH, Hannover, DE;
Abstract
The invention is directed to an air spring arrangement having a device for making ultrasonic distance measurements. An ultrasonic sensor, which is built into an air spring (,) for making measurements, can be disturbed when high frequency sonic oscillations occur when filling and venting the air spring. An air supply line (,) is disposed between the air spring (,) and a source of compressed air (,). To prevent the above disturbing frequencies, the air supply line (,) includes an air connecting pipe stub (,) which is lined with a net-shaped layer (,) on its inner wall surface. The layer (,) is preferably a plastic mesh. The filaments (,) of the mesh-shaped layer (,) are slightly inclined to the longitudinal center axis (,) of the pipe stub (,).