# US 5,341,948 A · Tamper evident seal

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- Number: US 5,341,948 A
- Document ID: US5341948A
- Status: Granted
- Kind: A
- Application number: 07/894,492
- Filed: 1992-06-05
- Granted: 1994-08-30
- Earliest claimed: 1992-06-05
- Assignees: CPC International Inc.
- Inventors: Stephen A. Gaeta
- Web page: https://patentgrep.com/patent/US5341948A

## CPC

- B65D 51/20: Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing {(B65D51/185 takes precedence; co-operating with an auxiliary container for additional articles or materials B65D51/28)}
- B65D 2251/0015: of the 41-type
- B65D 2251/0018: of the 43-type
- B65D 2251/0093: Membrane
- B65D 2577/2091: in cover
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES

## Abstract

This invention relates to a tamper evident inner seal for use on bottles, jars and other types of containers. More specifically, this invention provides a means for rendering a heat or adhesive sealed liner tamper evident by enabling the liner to tear upon removal or opening, while providing a peelable seal that does not leave seal residuals attached to the container.

## Claims

### Claim 1

A tamper evident seal comprising a sheet of directionally oriented material with the peripheral portion having a plurality of V-shaped notches each having two sides, wherein one side of the V-shaped notch is cut on the perpendicular to the periphery of the seal and the second side of the V-shaped notch is placed at an angle of from about 40.degree. to about 50.degree. from the perpendicular side, wherein the V-shaped notches are positioned so that the perpendicular side of the notch alternates from notch to notch.

### Claim 2 (depends on 1)

The tamper evident seal of claim 1 which is circular in shape and wherein the V-shaped notches are spaced approximately every 45.degree. around the periphery of the seal.

### Claim 3 (depends on 1)

The tamper evident seal of claim 1 wherein the directionally oriented material comprises foil, polyolefin and mylar.

### Claim 4 (depends on 1)

The tamper evident seal of claim 1, wherein the second side of the V-shaped notches is at a 45.degree. angle to the perpendicular side.

### Claim 5

A tamper evident seal for use on a container which includes a hollow body for holding material which has a neck at one end extending from the body to terminate in a lip and circumscribing an opening into which material is inserted and removed from the container and a cap for placement over the opening onto the neck, and wherein the seal comprises a sheet of directionally oriented material with a circular peripheral portion having a plurality of V-shaped notches comprising two sides wherein one side of the V-shaped notch is cut on the perpendicular to the periphery of the seal and the second side of the V-shaped notch is cut at an angle of 45.degree. from the perpendicular cut, wherein the V-shaped notches are spaced approximately every 45.degree. around the periphery of the seal and the perpendicular side of the V-shaped notches alternates from notch to notch.

### Claim 6 (depends on 5)

The tamper evident seal of claim 5 wherein the radii of the seal is less than the radii of a container of intended use.