Patent · US Expired

Piezoelectric crystal assembly including protective mounting and covering means

US4431937A · kind A · utility

9Cited by
8References
14Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 26, 1981
Grant dateFeb 14, 1984
Priority date
Expiry dateOct 26, 2001

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03H9/19
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

An improved construction for piezoelectric crystal assemblies has significant advantages both from the standpoint of operational attributes of the finished product and of adaptability to being mass produced in an expeditous and economical manner. A related, improved method of making piezoelectric crystal assemblies, including those of the aforementioned improved construction, is also provided, which similarly has significant advantages from the standpoints of speed and economy.

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