Patent · US Expired

Inflatable plug assembly for borehole

US6302202A · kind A · utility

2Cited by
7References
10Claims
0Family size

Inventor

Key dates

Filing dateJan 28, 2000
Grant dateOct 16, 2001
Priority date—
Expiry dateJan 28, 2020

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF42D1/26
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

An inflatable plug assembly suitable for use in the plugging of boreholes. The plug assembly having quick and slow inflation working modes selectable by the operator. The slow inflation working mode is obtained by orientation of the plug assembly such that the gas phase of the expandable working fluid is released on actuation by the operator. The quick inflation working mode is obtained by orientation of the plug assembly such that liquid phase expandable working fluid is released on actuation by the operator.

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