Back to results
US 4,502,606 AGranted
Locking closure for disposable containers
AssigneeMed-Safe Systems, Inc.
InventorsRichard A. Shillington, Alec Oberschmidt
Life of this patent
Estimating the term…
Abstract
A locking closure for disposable containers includes an annular wall structure defining a container opening and including a radially outwardly extending annular locking ridge with a closure defined by a generally flat circular disc having an axially extending peripheral skirt with an inwardly extending annular locking ridge for forceably extending over and lockingly engaging the outwardly extending annular locking ridge.
Claims9
A permanent locking closure structure for a container, comprising:
- annular wall structure defining an opening for a container, said wall structure having a stepped outer diameter defining a generally tubular neck, and end portion defining a circular opening and having a first outer diameter, an adjacent sleeve portion defining a second outer diameter greater than said first diameter, and a radial annular shoulder separating said end portion and said sleeve portion, said end portion including a radially outwardly extending annular locking ridge,
- a non-removable closure defined by a generally flat circular disk having an axially extending peripheral skirt, a radially inwardly extending annular locking ridge on the interior of said skirt for forceably enaging over said outwardly extending annular locking ridge, said skirt having a radial annular face for tight engagement with said shoulder, and an outer diameter equal to or less than said second outer diameter.
A permanent locking closure structure for a container having a circular opening, comprising:
- annular tubular neck structure having a generally stepped outer diameter defining a circular opening, said annular tubular structure having a first diameter end portion defining said opening and a second portion having a second outer diameter greater than said first diameter with a radial annular shoulder separating said end portion from said second portion,
- a radial outwardly extending annular locking ridge formed on said first end portion on the outer diameter thereof,
- a non-removable closure defined by a generally flat circular disk having an axially extending peripheral skirt with a radially inwardly extending annular locking ridge on the interior of said skirt for forceably engaging over said outwardly extending annular locking ridge, said skirt having radial annular face for tight engagement with said shoulder, and an outer diameter equal to or less than the diameter of said second outer diameter portion,
- an orienting strap means securing said closure to said wall structure in a non-closure orientation for non-closing engagement with said structure, and
- pass-through closure structure comprising a plurality of radially inwardly extending generally pie-shaped flaps formed on said end portion for extending across said opening,
- said pass through closure structure defining a first mode for passing articles to said opening into a container of which said structure is mounted and said non-removeable closure defining a second mode for permanent closure of said opening.
3 more elements
Dependencies are inferred from the claim text.