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:
Aug. 15, 1978
Filed:
Apr. 04, 1977
Applicant:
Inventor:
William L McKeown, Euless, TX (US);
Assignee:
Textron, Inc., Providence, RI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
73104 ; 416 61 ; 340 / ; 340652 ; 340679 ;
Abstract
A finger tip actuated structural crack monitor operation wherein a conductive array is adhered to a structure which is susceptible to development of cracks upon fatigue. An interrogation module is mounted on the structure and is connected to the array with circuit means in the module to sense any momentary discontinuity in the array and to store a failure condition therein upon detection of such discontinuity. A readout means is manually operated to provide a human sensible indication of the existence of the failure condition.