.~ Predetermined delay governs start of closure movement
DEFINITION
Classification: 49/30
(under subclass 29) Device wherein the means detains the closure in its open position for a preselected period of time before imparting or permitting closing movement, e.g., cyclically operated closures which, after a movement initiation; open, delay, and then close.
SEE OR SEARCH THIS CLASS, SUBCLASS:
138, for a closure having a means to vary its speed during closing movement.
