System for Supplying Paint from can to Brush

Abstract

The present invention describes a system for supplying paint, for painting, consisting of a brush or roller that in its central part has a manual suction pump built in the actual brush or control part of the roller where the paint arrives in order to be dispensed to the bristles; said pump consists of the connection of a circular cavity, located in a lower piece, with a central, round perforation in an upper piece, said pieces forming the brush. In the outer upper part of the chamber there is a channel that surrounds the entire central perforation but leaves a border between said channel and the edge of the perforation, in such a manner that the channel houses a ring that will tension and fix an elastic membrane functioning as a bellows for the suction and the expulsion of the paint. It also consists of a container for storing paint, which may be a can or closed container that has a perforation in the central upper part via which tubing is inserted for carrying the paint to the brush.

1 . A paint supply system which consists of a paint brush with a built-in pump on the body of the paint brush; where said pup is provided with two valves, an entry one and an exit one; where the entry valve is placed toward a channel which extends through the brush handle; while the exit valve is placed in an upper channel which delivers paint to the brush bristles; a flexible tube is required to bring paint to the brush, therefore one end of the flexible tube is connected to the handle base and the other end is immersed in a paint container which has a harness in order to be supported by an user. The system is characterized by that:
 i) the suction/expulsion pump is formed by an open cavity  8 , preferably circular, inserted into the body  1  brush; where the cavity is hermetically sealed by an elastic membrane  19  and a ring  20 , which has a slightly larger diameter from the cavity  8  and is placed on the membrane, within a circular channel  18  which externally surrounds the mentioned cavity in order to tense the membrane; the ring is fixed with at least two fixation locks  21  which are screwed on both diametrically opposed sides, regarding the cavity on the body brush surface; and   ii) the bottom part of the brush handle has a perforation  2  where protrudes a cannula  3  which connects the flexible tube  4 . And a fork hole  13  formed by said perforation  2  is transversally crossed by two conducts  14  and  15  which are connected between them by a transversal thin slot  29 ; one of the ducts has larger diameter  15  to allow the flexible tube to pass through in order to be connected to the cannula  3 ; while the other hole  14  is slightly smaller in order to affix the flexible tube when connected to the cannula; so that the transversal slot  29  allows the flexible tube to move from one duct to the other and is also used as a choke point in the flexible tube, suspending the flow of paint.   
   
   
       2 . A system for supplying paint, as requested in  claim 1 , characterized by that the paint container  23 , is a closed container, with a perforation in the central upper part, where the lower end of the flexible tube  4  is tightly inserted; and a conventional gasket  30  is used to hermetically seal the junction between the flexible tube and the perforation of the container. 
   
   
       3 . A system for supplying paint, as requested in the aforementioned claims, characterized by that the entry valve is placed inside the lower end of the flexible tube  4 . 
   
   
       4 . A system for supplying paint, as requested in the aforementioned claims characterized by that the suction/expulsion pump is placed into the handle of a roller brush; where said handle is connected to a tube  32  which supports the roller fabric  34  and delivers paint to the mentioned roller fabric through perforations  33  located in the far end of the tube  32  which supports said fabric.