Inspection port plug devices

Details Inspection port plug devices Inspection port plug devices

2008-02-07

2011-11-01

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

With inspection, signaling, indicating or measuring means

C415S135000, C415S136000, C415S138000, C415S201000, C060S039821

Reexamination Certificate

active

08047769

ABSTRACT:
An inspection port plug device is provided for sealing three or more oppositely placed inspection ports in a multi-chambered gas turbine engine. An embodiment of the inspection port plug device includes a cap and at least two shafts coupled end-to-end. A first shaft includes a first end coupled to the cap and a second end having a first sealing plug, wherein the first sealing plug includes a recess. A second shaft includes a third end coupled to the first sealing plug within the recess and a fourth end having a second sealing plug. The first shaft and the second shaft also include a first biasing mechanism and a second biasing mechanism, respectively, for maintaining the seals at the first and second sealing plugs when the inspection port plug device is installed.

REFERENCES:
patent: 3362160 (1968-01-01), Bourgeois
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patent: 4815276 (1989-03-01), Hansel et al.
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patent: 5185996 (1993-02-01), Smith et al.
patent: 5431534 (1995-07-01), Charbonnel
patent: 5867976 (1999-02-01), Ziegler, Jr.
patent: 6468033 (2002-10-01), Weidlich

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