Safety lock boltless closures

Details Safety lock boltless closures Safety lock boltless closures

2006-09-19

2006-09-19

Caldarola, Glenn (Department: 1764)

Distillation: apparatus

Apparatus

Elements

C202S244000, C202S245000, C202S246000, C202S250000, C202S262000

Reexamination Certificate

active

07108768

ABSTRACT:
An apparatus comprises a movable lock ring and a lock arm that prevents inadvertent movement of the lock ring. Contemplated configurations are especially useful in delayed coking vessels to prevent opening of the vessel while the vessel is in operation.

REFERENCES:
patent: 5098524 (1992-03-01), Antalfy et al.
patent: 5221019 (1993-06-01), Pechacek et al.
patent: 6022454 (2000-02-01), Fetzer
patent: 6228225 (2001-05-01), Meher-Homji

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