Patent · US Expired

Directional tank cleaning process

US4664720A · kind A · utility

12Cited by
5References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 15, 1985
Grant dateMay 12, 1987
Priority date
Expiry dateMay 15, 2005

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB05B3/0444
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A rotary spray nozzle directional tank cleaning machine has a first, stationary housing, a second housing mounted to the first housing for rotation about a first, typically vertical axis, and a third housing mounted to the second housing for rotation about a second axis. The second axis is at a first, acute angle to the first axis. The second housing is driven about the first housing through an impeller driven gear train by the pressurized cleaning liquid passing therethrough. The third housing is driven by a pair of bevel gears mounted to the first and third housings. One or more nozzles, mounted to the third housing, direct cleaning liquid along a third axis oriented at a second, acute angle to the second axis. The first and second, acute angles are preferably 45.degree. to create a hemispherical spray pattern.

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