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. 04, 1994
Filed:
Jul. 08, 1991
Federico Mancosu, Milan, IT;
Simone Schiatti, Desio, IT;
Pirelli Prodotti Diversificati S.p.A., Milan, IT;
Abstract
A flexible mounting (2) having a ring made of elastomeric material (3) fixedly engaged between an inner metal collar (4) and an outer metal collar (5) is mechanically stressed so that it undergoes a gradual elastic deformation corresponding to a relative displacement of 15 mm between the collars in a period of 20 seconds. Acoustic transducers (7) carry out the detection of the acoustic emissions occurring within the mounting itself and caused by structural instabilities arising in the flexible mounting while it is deformed. The acoustic transducers convert the acoustic emissions to electric signals that, after suitable amplification and discrimination, provide a reliable quality evaluation of the mounting being tested.