Patent · US Expired

Cleaning method and apparatus

US4069541A · kind A · utility

41Cited by
5References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 23, 1976
Grant dateJan 24, 1978
Priority date
Expiry dateApr 23, 1996

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA47L11/4088
  • WIPO fieldFurniture, games
  • WIPO sectorOther fields

Abstract

A liquid application and vacuum pick up cleaning apparatus wherein more thorough cleaning is facilitated by subjection of liquid on a surface being cleaned to agitation at ultrasonic frequencies for causing cavitation of the liquid.

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