Malvern M Hasha

US Patent:

49266802, May 22, 1990

Filed:

Feb 9, 1988

Appl. No.:

7/154981

Inventors:

Brian B. Hasha - Spring TX
Malvern M. Hasha - Houston TX
Bruce B. Hasha - Humble TX

International Classification:

G01M 328

US Classification:

73 46

Abstract:

A method and apparatus for hydrostatically testing connections between segments of pipe whereby pressurized hydrostatic test fluid is selectively applied to the connection such that the pressures are principally applied in the vicinity of the radial orifices leading into the sealing elements of the connection and not radially to the inner or outer annular surfaces of the connection in the vicinity of the sealing elements of the connection which would tend to substantially affect the bearing pressure of the sealing elements. In addition, a method and apparatus for selectively applying pressurized hydrostatic test fluid such that the pressures are applied to those areas where the bearing pressure of the sealing elements of the connection is sensitive to the applied pressures, thus manipulating the bearing pressure and controlling the sealing capacity of the connection during hydrostatic leak testing.

US Patent:

44071710, Oct 4, 1983

Filed:

Jul 10, 1981

Appl. No.:

6/282088

Inventors:

Malvern M. Hasha - Montgomery TX
Brian B. Hasha - Houston TX

International Classification:

G01M 308

US Classification:

73 46

Abstract:

An apparatus and method for hydrostatically testing the seal integrity against leakage of the sealing face surface of the end of a pipe is disclosed. A test pad is engaged against a sealing face surface of a pipe and urged into tight contact with said sealing face surface. Fluid is applied under pressure to the juncture between said test pad and said sealing face surface to determine the seal integrity against leakage of the sealing face surface.