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:
Jan. 01, 1991
Filed:
Jun. 14, 1989
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An ultrasonic sensor for testing tubes of a heat exchanger having a U-shaped tube bundle includes a probe head unit having an ultrasonic vibrator and two opposite ends. Two flexible hollow shafts are each connected to a respective one of the ends of the probe head unit. One of the hollow shafts is rotatably supported in a guide tip and the other of the hollow shafts is rotatably supported in a cylindrical sheath. An electric drive unit is connected to and fixed against torque relative to the other hollow shaft. The flexible hollow shafts have supports at predetermined axial intervals. A sealing body is connected to the cylindrical sheath for sealing off a flow of a fluid for coupling the ultrasonic vibrator and a pusher hose is also connected to the cylindrical sheath.