Closure apparatus and method of closing an opening

Details Closure apparatus and method of closing an opening Closure apparatus and method of closing an opening

2005-05-03

2005-05-03

Ngo, Lien (Department: 3727)

Receptacles

Closures

Having means for securing or retaining closure in its closed...

C220S833000, C099S324000

Reexamination Certificate

active

06886709

ABSTRACT:
A closure apparatus comprises a collar2having a collar periphery and having a collar inner surface defining an opening3, a closure10, having a closure periphery, said closure10being for closing said opening3, a bearing structure7being located around said collar periphery or said closure periphery, a locking ring18being mounted for rotation with respect to said closure10and said opening3on said bearing structure7, so that said locking ring18is rotatable between a locking position for locking said closure10to said opening3and an unlocked position for permitting said closure10to be moved away from said opening3.

REFERENCES:
patent: 1925492 (1933-09-01), Mohler
patent: 2869752 (1959-01-01), Hall
patent: 3653533 (1972-04-01), Mortensen
patent: 3990605 (1976-11-01), Hanke et al.
patent: 5768976 (1998-06-01), Suk

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