Rigid thermoplastic squeeze container having self-sealing dispensing valve
US5911344A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1997 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | Nov 21, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D35/14
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A rigid thermoplastic squeeze container having a self-sealing dispensing valve, for use with flowable substances, has a cylindrical shell with a body portion, a first sealable open end and an opposite end having a head portion with a dispensing orifice closed off by a self-sealing valve. A thermoplastic cylindrical support sleeve is fitted within the cylindrical body portion which extends from a position adjacent the head portion to a location spaced from the sealable end of the cylindrical body portion of the shell, such that that end can be sealed. The cylindrical shell and cylindrical body portion may be bonded together, and the head portion of the cylindrical body portion of the shell may have a downwardly depending flange to trap an end of the cylindrical support sleeve between the flange and the cylindrical body portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.