Patent · US Expired

Closure for a packaging container

US4489859A · kind A · utility

6Cited by
4References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 29, 1982
Grant dateDec 25, 1984
Priority date
Expiry dateOct 29, 2002

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB65D47/242
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A closure for a packaging container is provided, the closure permitting the continuous or intermittent dispensing of a liquid or free-flowing product. The closure comprises a continuous pipe sleeve with a bottom opening molded in the product dispensing opening, which pipe sleeve is provided with a tubular ball bearing housing within which a valve ball is free to move, which tubular housing includes a sealing cone which acts as a ball valve seat at the longitudinal sleeve outlet and a flared annular ball chamber above the bottom opening, which forms the longitudinal sleeve inlet end, and a freely movable valve ball located within the continuous tubular ball bearing housing.

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