Measuring and testing – Inspecting
Patent
1989-10-16
1990-11-06
Raevis, Robert
Measuring and testing
Inspecting
F16L 5510
Patent
active
049676075
ABSTRACT:
Inspection port plugs for fluid flow measuring sections are separated from the access and sealing flanges that have been employed in the past. This permits more accurate and faster positioning of the plug that is no longer vulnerable to faulty flange positions caused by flange gasket stiffness or bolt tightness.
REFERENCES:
patent: 1690183 (1928-11-01), Stoughton
patent: 2581536 (1952-01-01), Johns
patent: 3451432 (1969-06-01), Miller
patent: 3996124 (1976-12-01), Eaton et al.
patent: 4703664 (1987-11-01), Kirkpatrick et al.
Raevis Robert
The Mustan Corporation
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