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:
Sep. 15, 1992
Filed:
Oct. 30, 1989
William A Driscoll, Maplewood, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
A device for providing the modulus and loss factor values of a damping material based upon temperature and frequency which includes (i) an insert having (a) temperature isotherms on one side, and (b) graphs of the modulus and loss factor values for the damping material as a variable of temperature and frequency on the other side, and (ii) a sleeve for the insert which has (aa) a temperature isotherm display window for displaying the temperature isotherms on the insert, (bb) a frequency scale proximate the temperature isotherm display window, and (cc) a means for highlighting a modulus value and a loss factor value from the modulus and loss factor graphs provided on the insert. The device is employed to obtain the modulus and loss factor values of a damping material at a particular frequency and temperature by (i) a coupling the temperature and frequency values of concern by sliding the insert within the sleeve until the isotherm representing the temperature of concern physically contacts the frequency value of concern, and (ii) reading the modulus value and loss factor value highlighted by the highlighting means.