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:
Mar. 31, 1981
Filed:
Sep. 07, 1979
Gerard O Fontaine, Cumberland, RI (US);
Checon Corporation, Attleboro, MA (US);
Abstract
Method and apparatus for in line ultrasonic inspection of linearly extending brazed composite workpiece including a linearly extending bonded region, traveling linearly at a given speed. A source of ultrasonic signals is focussed on the workpiece and is reciprocated in the plane of the workpiece in a sweep transverse to the direction of workpiece travel, the sweep being at least commensurate with the width of the bonded region. The signals reflected from the workpiece are received and processed to derive control signals, which are input to a marker. The marker is reciprocated in phase with the reciprocation of the signal source. A linearly extending record medium is moved past the marker transversely to the reciprocation of the marker at a speed not greater than one-half the workpiece speed, whereby the marker traces successive generally parallel strokes against said record medium. The resulting record gives a useful representation of the condition of the entire bonded region, allowing the bonding conditions to be correct during production.