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:
Dec. 21, 1976
Filed:
Dec. 23, 1974
Applicant:
Inventor:
Bruce Sargent Maccabee, Silver Spring, MD (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01H / ;
U.S. Cl.
CPC ...
73 713 ; 350285 ;
Abstract
A simple system is described which makes surface vibrations apparent by mechanical deviation of a light beam. The system comprises two or more U springs which are fastened to the vibrating surface and which mechanically amplify the vibrations thus creating large beam deviations from small surface vibrations that occur at mechanical resonance frequencies of the U spring system.