Dispensing container having improved torque response and closure sealing

Abstract

There is a dispensing container. The dispensing container has a head, a body, and a closure. The head has a neck and a shoulder. The neck also has a bore extending longitudinally therethrough. The neck defines one or more external threads. The head has an indentation extending therein and circumferentially therearound proximal to the junction of the neck and the shoulder. The indentation is bounded by a tapered surface tapering outward with respect to the neck towards a top surface of the shoulder. The body is connected to the shoulder. The body has a chamber therein adapted to retain a product. The bore is in communication with the chamber. The closure defines one or more internal threads therein. The one or more internal threads are intermated with the one or more external threads. The closure has a skirt having a leading edge. The indentation in the head receives the leading edge. The leading edge contacts the tapered surface. The closure is openable and reclosable with respect to the head. The head and the closure are adapted such that the leading edge returns to contact with the tapered surface upon reclosure by the closure.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a container for dispensing a product. The present invention also relates to a tubular dispensing container of small diameter. The present invention further relates to a dispensing container having improved torque retention and response and closure sealing. [0003] 2. Description of the Related Art [0004] Dispensing containers are employed commercially to dispense products for a variety of consumer and industrial applications. Such dispensing containers typically have a head, a body or receptacle, and a closure. Particularly useful are tubular dispensing containers, which have a body or receptacle in the form of a tube. Tubular dispensing container of small head and tube diameter, i.e., about 10 millimeters (mm) to about 25 mm, have been useful in pharmaceutical and cosmetic applications. [0005] Industry has avoided use of screw-type tube dispensing containers of small diameter due to ...

AI Technical Summary

Benefits of technology

[0007] According to the present invention, there is a dispensing container. The dispensing container has a head, a body, and a closure. The head has a neck and a shoulder. The neck also has a bore extending longitudinally therethrough. The neck defines one or more external threads. The head has an indentation extending therein and circumferentially therearound proximal to the junction of the neck and the shoulder. The indentation is bounded by a tapered surface tapering outward with respect to the neck towards a top surface of the shoulder. The body is connected to the shoulder. The body

Problems solved by technology

Industry has avoided use of screw-type tube dispensing containers of small diameter due to handling and use problems.

As the closure is screwed onto the neck, excessive torque is generated when the leading edge of the closure contacts the shoulder.

The excessive torque forces the thread-bearing surface of the closure, usually a skirt or wall of the closure, outward due to insufficient rigidity of the skirt or wall.

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