System for introducing additive into a container
US4821875A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1988 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Feb 12, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S366/605
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A system for introducing a flowable additive (3) from a capsule (1) to paint (4), varnish, woodstain or the like in a closed (preferably lidded) container (2) (for example a paint container) modified by the provision of a relatively easily openable inlet (9) into the container. Preferably the inlet is located in a lid (6). The capsule comprises a chamber (23) which defines a volume which contains the additive. The system is provided with means (25 and 34) for creating an opening in the chamber which can communicate with the inlet and means (preferably a compressible chamber) for positively expelling additive through the opening by contracting the volume which contains the additive. The capsule and container are also provided with co-operable locating means (10 and 30 with 25) which can co-operate to assist in locating the opening created in the chamber in communication with the inlet. Also a capsule and a closed container for use in the system and a method of introducing additive using the system. Use of the system reduces the risk of spillage and splashing and permits more controlled tinting of paint and therefore is more suitable for use by inexperienced people.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.