Self-retained borescope plug

Details Self-retained borescope plug Self-retained borescope plug

1997-08-01

1999-02-09

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

415118, F02C 700

Patent

active

058679766

ABSTRACT:
A borescope plug apparatus includes a plug having a threaded inner end for threadingly engaging a borescope port in an inner casing, and an opposite outer end. A tubular sleeve surrounds the plug to define an annulus therebetween, and has opposite inner and outer open ends. A first retainer is operatively joined to the sleeve outer end for mounting the sleeve to an outer casing. A second retainer is operatively joined between the sleeve and the plug for retaining the plug inside the sleeve upon disengagement between the plug inner end and the borescope port.

REFERENCES:
patent: 2965286 (1960-12-01), Ledwith et al.
patent: 3362160 (1968-01-01), Bourgeois
patent: 4300774 (1981-11-01), Hollis et al.
patent: 4815276 (1989-03-01), Hansel et al.
patent: 4825642 (1989-05-01), Radtke
patent: 5115636 (1992-05-01), Zeiser
patent: 5431534 (1995-07-01), Charbonnel

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