System for introducing additive into a container
First Claim
1. A system for introducing flowable additive to paint, varnish, woodstain or the like contained in a closed container wherein the system comprises(a) a closed container containing paint, varnish, woodstain or the like, the container being provided with an inlet which is closed by an inlet closure but which is openable by a force exerted on the inlet closure,(b) a closed capsule separate from the closed container which capsule comprises a chamber having a shape in the form of two opposed adjacent dished shapes joined around their perimeters which chamber defines a volume which contains the flowable additive, which chamber can be opened to create an opening in the chamber which opening can communicate with the inlet into the container after the inlet has been opened, and which chamber is compressible whereby the volume defined by the chamber can be contracted to expel positively additive from the chamber through the opening and(c) co-operable locating means provided on the container and capsule which can at least assist in locating the opening created in the chamber in communication with the inlet into the container.
1 Assignment
0 Petitions
Accused Products
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.
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Citations
21 Claims
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1. A system for introducing flowable additive to paint, varnish, woodstain or the like contained in a closed container wherein the system comprises
(a) a closed container containing paint, varnish, woodstain or the like, the container being provided with an inlet which is closed by an inlet closure but which is openable by a force exerted on the inlet closure, (b) a closed capsule separate from the closed container which capsule comprises a chamber having a shape in the form of two opposed adjacent dished shapes joined around their perimeters which chamber defines a volume which contains the flowable additive, which chamber can be opened to create an opening in the chamber which opening can communicate with the inlet into the container after the inlet has been opened, and which chamber is compressible whereby the volume defined by the chamber can be contracted to expel positively additive from the chamber through the opening and (c) co-operable locating means provided on the container and capsule which can at least assist in locating the opening created in the chamber in communication with the inlet into the container.
Specification