Receptacles – Closures – Having gasket or packing
Patent
1976-03-02
1978-03-14
Engle, Samuel W.
Receptacles
Closures
Having gasket or packing
220200, 29401R, B22D 1910
Patent
active
040786978
ABSTRACT:
Breaks in the lining of a protectively lined reactor vessel are repaired without introducing unwanted electrical paths through the vessel. Specifically, the breaks are repaired using a plug comprising an insulated anchor stud anchored into the portion of the metal support wall underlying the break; a sealing gasket disposed on the portion of the protective lining surrounding the break; a washer disposed outside the sealing gasket; and a clamping arrangement mechanically coupling the washer and the anchor stud for clamping the gasket onto the protective lining throughout a path surrounding the break. In preferred embodiments, the insulating stud is a threaded cylindrical stud anchored into the wall by threading into a correspondingly threaded aperture, the sealing gasket is a corrosion-resistant, insulating plastic material such as a fluorocarbon, the washer is concave with respect to the gasket and filled with insulating cement, and the clamping arrangement is either a nut threadedly engaged to the insulating stud or a nut in combination with a second stud attached to the first. Reactor vessels using such repair plugs can utilize dip tubes of dissimilar metal without premature deterioration.
REFERENCES:
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patent: 2890845 (1959-06-01), Kiekhaefer
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patent: 3831085 (1974-08-01), Kratavil
patent: 3858114 (1974-12-01), Voellmin
Lerman Michael J.
Schlosberg Seymour
Cangialosi S. A.
Engle Samuel W.
R. Gelb & Sons, Inc.
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