Patent · US Expired

Dynamically tunable resonant device with electric control

US4959568A · kind A · utility

28Cited by
25References
19Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 5, 1986
Grant dateSep 25, 1990
Priority date
Expiry dateAug 5, 2006

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB06B1/04
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

An element that moves resonantly has its resonant frequency dynamically tuned to a desired frequency by two components that cooperate via magnetic fields, one component being mounted for motion with the moving element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.