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US 4,844,270 AGranted
Screw cap jar
AssigneeRampart Packaging Inc.
InventorPaul M. Coffman
Life of this patent
Estimating the term…
Abstract
A method for converting a thin-walled container to a jar with a rigid threaded neck which will accept a conventional threaded screw cap which comprises separately forming a thin-walled container and a rigid threaded neck ring and then attaching the ring to the outside of the container and the jar so made.
Claims19
A screw cap jar comprising:
- (a) a screw cap;
- (b) a container with an open end;
- and
- (c) a separately formed threaded neck ring which accepts the screw thread of the screw cap and which is attached to the outside of the container and which is comprised of at least two integrally fitting pieces which are combined on the outside of the container to form the neck ring and create an interference fit therein.
1 more element
A screw cap jar comprising:
- (a) a screw cap;
- (b) a container with an open end;
- and
- (c) a separately formed threaded neck ring which accepts the screw thread of the screw cap and which is attached to the outside of the container wherein the neck ring is discontinuous and has a hinge on one side and an opposing opening which includes means for mechanical interlocking.
1 more element
Dependencies are inferred from the claim text.