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:
Oct. 19, 1976
Filed:
Dec. 22, 1975
Klaus Berner, Salzgitter-Lebenstedt, DT;
Other;
Abstract
An ultrasonic testing apparatus which is mounted on the housing of a trimming device for one marginal portion of a sheet- or band-like workpiece moving lengthwise along a horizontal path. The testing apparatus has a deflector which is pivotably mounted on the housing by a hinge so that it can turn about a vertical axis and has ways for a pneumatic cylinder and piston assembly whose piston rod carries a roller follower movable at right angles to the path toward and away from engagement with one side of that marginal portion of a workpiece in the horizontal path which is about to be trimmed by the trimming device. The probe holder with the probe of the testing apparatus is mounted on a parallel motion mechanism which is carried by the piston rod and is biased by a spring so as to maintain the probe close to the one side of the one marginal portion of a moving workpiece when the latter is engaged by the roller follower. A spring automatically retracts the piston rod from the path in the event of malfunction of the cylinder and piston assembly, and the parallel motion mechanism carries a nozzle which discharges streams of compressed air serving to blow a liquid couplant off the one side of the workpiece downstream of the probe.