Patent · US Expired

Contact ultrasonic transducer head

US4868798A · kind A · utility

5Cited by
4References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 18, 1988
Grant dateSep 19, 1989
Priority date
Expiry dateNov 18, 2008

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2291/2638
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A contact ultrasonic transducer head assembly. A stationary housing is adapted to be fitted to a remotely operated manipulator. A movable assembly slidably received by the stationary housing has a plurality of independently suspended ultrasonic transducers mounted thereon. A position encoder mounted in the movable assembly monitors movement within the stationary housing. A limit switch is used to electrically disable the remotely operated manipulator when the movable assembly slides a predetermined distance into the stationary housing to prevent damage to the transducers or the surface being inspected.

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