Patent · US Expired

Plastic container

US3968880A · kind A · utility

33Cited by
4References
15Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 28, 1975
Grant dateJul 13, 1976
Priority date
Expiry dateAug 28, 1995

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB65D2543/00916
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A "childproof" container having reproducible opening and closing characteristics is disclosed. The container is an integrally formed, one-piece, plastic container having a bottom section and an overlying top section hinged to the bottom section. A latching assembly which prevents undesirable "relock" when the container is being opened is featured. The portion of the locking assembly which is carried by the bottom section comprises an upwardly projecting latching lug which is thicker at its distal end than at its proximate end. The top section carries the other portion of the locking assembly which features a downwardly projecting latching protuberance on its top wall and an inwardly projecting latching protuberance on its front wall. The two protuberances are spaced apart so that the distance between them is less than the distal thickness of the latching lug carried by the bottom section. In this manner the latching lug will snap into place between the two latching protuberances with the application of a closing pressure on the top and bottom sections. Without this closing pressure however, the relocking of the container is not possible.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.