Mechanism for eficiently supplying paint to a roller or brush

Abstract

The invention relates to a mechanism for efficiently supplying paint to a roller or brush, formed by a suction/discharge pump including a deep cavity ( 1 ). The pump includes two externally threaded cylindrically-hollow extensions ( 5 and 5 ′) which are located diagonally opposite one another in relation to the cavity ( 1 ) and serve as connectors for attaching accessories, such as, for example, a brush, roller handle or hose. The lower extension ( 5 ) includes a narrow channel ( 7 ) which is connected to the cavity ( 1 ) and the other end of which is connected to a wide channel ( 6 ) into which is inserted a first valve ( 8 ) having a duckbill-shaped nozzle, made from a deformation-resistant material. The upper section ( 5 ′) has a similar structure to the lower section ( 5 ), but differs in that, instead of having a wide channel ( 6 ), this section ends in a tip ( 15 ) of equal thickness to that of the wide end ( 9 ) of the male connector, so that a second valve ( 8 ′) having a duckbill-shaped nozzle can be mounted thereon.

1 . A mechanism to efficiently deliver paint to a roller or brush, consisting of a suction/expulsion pump, which in turn is constituted of an open cavity, preferably circular, inserted into the front of the body; said cavity is hermetically closed hermetically with an elastic membrane and a ring, with a diameter slightly larger than the diameter of the cavity, is placed on the membrane and is inserted in a circular canal surrounding externally the cavity, in order to tighten the membrane; the ring is fixed with at least two screw which are diametrically opposed, with respect to the cavity on the surface of the brush. Said mechanism system is characterized by:
 i) The suction/expulsion pump has a deep cavity  1 , which is sealed with a lid formed by a circular elastic membrane  2  with a thickened and strengthened perimeter which is pressed into a channel  4  that surrounds the cavity externally. The pump has two externally striated and threaded extensions  5  and  5 ′, diametrically opposed to each other, with respect to the cavity  1 , which serve as connectors for attaching accessories such as a brush, a roller handle or a tube, among others;   ii) The lower extension  5  has a narrow channel  7  which is connected to the depression of cavity  1  and have its other end attached to a wide channel  6  where is introduced a first valve  8  with a duckbill-shaped nozzle, made of an elastic material and resistant to deformation. This first valve  8  is mounted on the wide end  9  of a male connector shaped in an arrow form, so that in the wide channel  6  stay fixed said first valve  8  and the wide end of the connector  9 , the nozzle being oriented towards the narrow channel  7 , to allow the introduction of paint into the cavity of the pump. The other extremity  11  of the male connector is thinner and ends in an arrowhead, which is inserted into the narrow channel  13  of a removable piece  12  until the upper limit  10  of the male connector reaches the internal step of the removable piece  12 ; so it is clear that said removable piece is an open cylinder, which interior denotes two sections, the already mentioned narrow channel  13  and an upper channel  14  which is wider and internally threaded, to receive the external thread of the lower extension so both parts stay assembled.   iii) The upper extension  5 ′ if similar in construction to the lower extension  5 , with the difference that instead of having a wide channel  6 , this one is ending in a tip  15  of equal thickness than the extreme width of the male connector  9 , so that can be mounted a second valve  8 ′ with a duckbill-shaped nozzle, once mounted the valve  8 ′ is inserted into the cavity  16  of an arrow shaped female connector, whose tip  18  is inserted in a second removable cylindrical piece  12 , until its limit  17  makes contacts with the internal step of said removable piece. In this case the second valve  8 ′ stays oriented towards the arrow-shaped tip  18 , in such a way as to allow the output of paint to the painting device.   
     
     
         2 . A mechanism to efficiently deliver paint to a roller or a brush, as claimed in  claim 1 , to which is added a ring gasket  19  at the junction of sections  5  and  5  with the removable cylindrical parts. 
     
     
         3 . A mechanism to efficiently deliver paint to a roller or a brush, as claimed in  claims 1  and  2 , characterized in that the lid has a tongue  2 ′ in its perimeter, used to pull and remove the cover from the channel  4  that surrounds the cavity  1  so that Channel  4  has a small cavity  4 ′ which holds the tongue  2 ′. 
     
     
         4 . A mechanism to efficiently deliver paint to a roller or a brush, as claimed in previous claims, where a roller is added to said mechanism, for which it is necessary to implement a handle to hold the roller, where said handle is formed of a cylindrical body  24 , preferably, inside which pass through a conduit  77  to allow the passage of paint, its upper extremity ends in an externally threaded bushing  26  for threading it with an internally threaded cap  27 , and its inferior extremity terminates in an arrow-shaped tip  25  to have it connect to a flexible tube  29  which in turn is connected to the paint supplying mechanism described above. The threaded cap  27  has a central perforation  23 , where it inserted the open end of a tube  20  which hold the roller plush  21 , to have the paint continue his way through said tube  20  until exiting through a series of small perforations  22  which are located at the opposite end of the tube  20 , so this tip should be closed, to force the paint to go out through the holes  22  and then moisten the plush  21  of the roller. 
     
     
         5 . A mechanism to efficiently deliver paint to a roller or a brush, as claimed in  claim 4 , wherein to the handle is adapted a circular brush instead of a roller, where the brush has an internally threaded lower cavity  28  to be screwed into the tip  26  of the handle, and therefore must provide a conduit  79  to allow the paint to exit through the bristles  45 . 
     
     
         6 . A mechanism to efficiently deliver paint to a roller or a brush, as claimed in  claims 5  and  6 , characterized in that at the junction of the threaded cap  27  and the upper threaded end  26  of the body  24  of the handle can be placed a third valve  78  with a duckbill-shaped nozzle where the nozzle stay oriented towards the roller, in order to prevent the return of the paint to the components mentioned above. 
     
     
         7 . A mechanism to efficiently deliver paint to a roller or a brush, as claimed in  claims 1 ,  2  and  3 , characterized in that said system is coupled to a paint brush, to this end, the suction/expulsion chamber is inserted into the body  51  of the brush, so the lower mechanism is exactly the same, except that the inferior extension  5  is longer in order to be a part of the handle of the brush, while the upper section  5 ′ forms the body  51  of the brush. The body  51  has in its internal part, on the cavity  1 , a channel  46  with an internal step, where is located a valve  52  with a duckbill-shaped nozzle, but with a different body than the valves already mentioned, as this valve  52  have a circular ledge in the middle, which is the part that rests on top of said channel  46 , thus allowing the passage of the paint to a detachable base  44 , so that said body  51  has in its upper part a longitudinally passing channel  43 , where is inserted the detachable base  44  which contains the bristles  45 . The body includes at one of its extremity a fastener  47  and on the other end an opening  53 , which serve to hold firmly to the detachable base  44 , which is solid and has a vertical channel  48  for the passage of the paint; where said channel  48  must be in the same position as the channel  46  of the body of the brush, but have to be projected out and down from the base, by way of a transversal tubular ledge, so that can be inserted in it the nozzle of the valve  52 ; the tubular ledge has an outer ring gasket  54  to prevent the paint from coming out of this junction.
 The base provides an outgoing 49-hook on the end where it is to secure the safe  47  and at the other end a ledge without hook  55  to be inserted into the opening  53 , thus the base is securely fastened to the body of brush. The upper perimeter edge of the detachable base  44  projects into thin walls  50 , forming a container  51 , where a tube  56  is inserted into the duct  48 , to have the paint exit; on the perimeter and immediately after the thin walls  50  are mounted the bristles  45  while leaving a central space, where is first attached an outer plastic bag  57  opened in its superior part, and of a lower height than the bristles; then is placed a closed inner bag  58  of a lower height than the outer bag  57 , with perforations  59  in its upper end, where said inner bag  58  holds in its interior and at the same height than the tube  56 , a small bag  60  which covers said tube  56 ; so the small bag is open at its bottom and right side; therefore when the paint come out of the tube  56 , it disperses to the other end of the inner bag  58 , where the paint goes out through the perforations  59 , before being poured into the outer bag  57 , and finally be distributed to the bristles  45 , achieving this way an uniform and constant flow throughout the whole brush. 
 
     
     
         8 . A mechanism to efficiently deliver paint to a roller or a brush, as claimed in  claim 7 , where to the mechanism is inserted, in the channel  46 , a tube that holds a roller, as described in  claim 4 , instead of inserting the detachable base. 
     
     
         9 . A mechanism to efficiently deliver paint to a roller or a brush, as claimed in the previous claims, characterized in that to its inferior part is added another stretch of flexible tube  29  exactly at the arrow tip of the male connector  11 , which in turn connects to a conventional paint container paint, where is added a filter  30  to the end of the flexible tube  29  that goes into the container, by means of copy  31 , to prevent the entry of lumps or any impurities that can be found in the paint. 
     
     
         10 . A mechanism to efficiently deliver paint to a roller or a brush, as claimed in  claim 9 , characterized in that is added a paint heater, between the stretch of the flexible tube  29  coming from the paint supplying mechanism and the extremity of the flexible tube  29  coming from the container. Said heater is constituted of: an outer cylindrical tube  32  open at both ends, with both ends  34  internally threaded to screw a copy  35  on each extremities, forming an internal cavity which houses an inner tube  33  passing through to form a conduit through which pass the paint. Between the inner tube  33  junction with copy  35  is sealed with a circular package  37 , to prevent the paint from spilling and prevent outside air from entering. Said heater includes electrical elements to heat the paint such as a sensor  38 , a resistance sensor  39 , an electrical resistance  40 , a temperature controller  41  and electric cables  36 , which can be placed between the space between the inner cylindrical tube  33  and outer cylindrical tube  32 , or in another way suitable to a person skilled in the art. The space formed between the outer tube  32  and inner tube  33  is filled by insulating material  42 , to protect the electric components and to prevent the heating of the outer tube  32 . 
     
     
         11 . A mechanism to efficiently deliver paint to a roller or a brush, as claimed in  claim 10 , characterized in that the container or pot containing the paint becomes a portable heater, for that said container must be of a material resistant to high temperatures, because it will be heated by a resistor  65  that surrounds it externally, which is connected to a power cable  66 ; on the container is placed on a vibration sensor  67  which detect the presence of vibrations and then shut off the power for safety, a temperature sensor  68  that interrupt the electrical current when the container is heated from 30 to 60° C., so that the paint do not overheat, a three-position switch  69 , an inflammable and thermally insulated sleeve  70 , used to cover the container components and keep it warm longer; and a strap  71  for carrying it.
 In the cap  72  of the container is implemented a fireproof valve  73  which allows the entrance and exit of gases to be regulated in a controlled manner and prevents the paint to ignite. 
 
     
     
         12 . A mechanism to efficiently deliver paint to a roller or a brush, as claimed in the previous claims, characterized in that is added a mechanism that provides vibration, which is made up of a circuit  61  with its respective electric motor  62 , a switch  63  and its respective power source  64 . The disposition of this mechanism shall be to the convenience of one skilled in the art, as some components may be placed either inside or outside the body and the handle of the paint supplying mechanism. The vibration mechanism is intended to provide vibration to the painting system of the present invention, to cause a liquefaction of the paint in order to make it flow easily through the system. 
     
     
         13 . A mechanism to efficiently deliver paint to a roller or a brush, as claimed in the previous claims, characterized in that the threaded cap  74 , where is inserted the flexible tube  29 , is designed to connect to a water faucet  75  and if the water inlet  75  is not threaded, then a connector  76  can be adapted.