Tightly sealing safety cap

US4087016A · kind A · utility

Assignee

• Lermer Packaging Corp. · US

Inventors

• Edward J. Towns · Madison, US
• Edward M. Brown · Livingston, US
• Leonard Dykstra · Hasbrouck Heights, US
• Joseph Frank Spano · Westfield, US
• John Proctor · Fishers, US

Key dates

• Filing date: Jul 22, 1977
• Grant date: May 2, 1978
• Expiry date: Jul 22, 1997

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D50/061
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A safety type cap for medicinal and similar containers capable of effecting a tight seal upon the container opening by means of a sealing flange extending laterally from the inner surface of the cap top, and which is deflected centripetally upon contact with the inner surface of the mouth of the container to result in resiliently bowing the top wall of the cap to result in increased outward pressure applied to the flange against the inner mouth surface. The radial thickness of the flange is substantially greater than the thickness of the cap top, so that the flange maintains a substantially undistorted shape during compression.