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US 5,634,496 AGranted
Collapsible tube
AssigneeTeledyne Industries, Inc.
InventorJohn N. Grabner, Jr.
Life of this patent
Estimating the term…
Abstract
The invention is an improved cap for a collapsible tube, particularly a tube having tamper evident means as is used on tubes having eye medications. The cap has a flexible substantially cylindrical wall which can be squeezed into an elliptical shape to permit the user to exert substantial force, by means of a "thumb screw" effect, to unscrew the cap from the tube.
Claims11
In a one-piece cap for a collapsible tube having:
- a) a rigid post extending longitudinally from a rigid base,
- b) the post being smaller in cross section than the base;
- the improvement comprising a continuous, hollow, flexible, substantially cylindrical, wall extending longitudinally from the base and around the post for substantially the length of the post, wherein the wall can be deformed by squeezing into an elliptical cross section about the post.
A one-piece cap for a collapsible tube comprising
- a) a rigid base,
- b) a rigid post extending longitudinally from said rigid base,
- c) a flexible substantially cylindrical wall extending from the base and around the post, and
- d) a flexible skirt extending from the base;
- in combination with a collapsible tube having:
- a) a shoulder, and
- b) a flange extending inwardly from the shoulder,
- wherein
- a) the skirt of the cap initially is in a position beneath the flange, and
- b) a user initially removes the cap from the tube and the skirt from beneath the flange by squeezing the cylindrical wall into an ellipse shape around the post, whereby the user can exert a rotational force on the cap.
7 more elements
Dependencies are inferred from the claim text.