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:
May. 30, 1978
Filed:
Feb. 04, 1976
Applicant:
Inventor:
Peter Antony Stewart, Bristol, EN;
Assignee:
Rolls-Royce (1971) Limited, , GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ; G03C / ;
U.S. Cl.
CPC ...
250314 ; 250402 ;
Abstract
The passage of foreign objects such as bullets or stones through a gas turbine engine compressor is observed by directing beams of x-radiation through the engine, receiving the beams on fluorescent screens, to form fluorescent images, intensifying the fluorescent images by respective image intensifiers and recording the intensified images with respective high speed cine cameras.