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:
Jul. 19, 2011
Filed:
Jul. 08, 2010
Donald S. Oblak, North St. Paul, MN (US);
Satinder K. Nayar, Woodbury, MN (US);
Paul M. Fettig, Oakdale, MN (US);
Donald L. Pochardt, Hastings, MN (US);
Donald S. Oblak, North St. Paul, MN (US);
Satinder K. Nayar, Woodbury, MN (US);
Paul M. Fettig, Oakdale, MN (US);
Donald L. Pochardt, Hastings, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A system for applying ultrasonic energy to a workpiece, the system including a horn stack; a mounting system upon which the horn stack is mounted; a source of energy coupled to the horn stack; an anvil having a surface for supporting the workpiece; and a controller configured to receive a resonant frequency of the horn stack, and to determine a quantity standing in known relation to a change in gap between the horn stack and the anvil.