Abstract:
The invention is a paint brush with the handle perpendicular to the brushes bristles. The brush is made up of a handle section, a brush head holder section and a brush head section. The brush head section and the bush head holder section is attached to the handle such that the handle is perpendicular to the bristles of the brush head section. The brush head section is releasably attached to the brush head section. This enables several different brush head section of differing sizes to be placed on the same handle.

Description:
This application is a continuation-in-part of prior application No. 60/719,877 that was filed on Sep. 24, 2005. 
    
    
     FIELD OF INVENTION 
     This invention relates to the field of paint brushes and more particularly to the field of paint brushes with interchangeable brush heads. 
     BACKGROUND OF THE INVENTION 
     In order to use a paint brush one has to move his wrist as he moves up and down or from side to side with the brush. If a person is employed as a painter he has to make this motion day in and day out. This will ultimately lead to the painter getting a repetitive stress injury or carpal tunnel syndrome and painting will cause him a great deal of pain. 
     Also, for older painters who have arthritis within their wrists, painting is painful. The inventor has designed a brush will greatly reduce these problems. Thus, the first objective of this invention is to create a brush which an individual can use without the normal up and down movement or side to side movement of the wrist. The feature that enables the inventor&#39;s brush to be used without movement of the wrist is that the inventor has moved the handle so that the handle would be ninety degrees or perpendicular to the brush head. This also enables the painter to grab the brush in a normal grip. He can now use the brush without movement of his wrist. The applicant has further made the brush handle slightly curved and shaped so that an individual can hold the brush in a normal grip. 
     Another problem of the brushes presently out on the market is that the brush head wears out far earlier than the handle of the brush. The brush head can wear out for several reasons. The first being that the brush was not properly cared for thus the paint for varnish or shellac has dried within the brush making it unusable. Brush heads also wear out from normal use. In both of these cases the brush head will wear out long before the handle wears out. 
     Thus, one of the objectives of this invention is to create a method of removing a brush head from the handle and replacing it with another. Applicant has developed a method for interchangeable brush heads so if the first one wears out one has another one to put in its place. This also enables the individual to place brush heads of different sizes on the brush. Thus, one handle can be used for a one inch brush as well as a three inch brush head. Like being able to take the brush head off the handle, it allows for easier clean up of the brush head and also for easier storage of the brush head in that the brush heads can easily be dropped into a plastic bag, especially when using water soluble paints. 
     SUMMARY OF THE INVENTION 
     The invention is a paint brush with the interchangeable brush heads. The brush is made up of a handle section, a brush head holder section and a brush head section. In one embodiment the brush head section and the bush head holder section is attached to the handle such that the handle is nearly perpendicular to the bristles of the brush head section. The brush head section is releasably attached to the brush head section. This enables several different brush head section of differing sizes to be placed on the same handle. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a side view of the invention. 
         FIG. 2A  is a side view of the invention with a small brush head. 
         FIG. 2B  is a side view of the invention with a different size brush head from  FIGS. 1 and 2A . 
         FIG. 2C  is a side view of the invention with two brush heads of differing sizes. 
         FIG. 2D  is a side view of the invention two brush heads different form  FIG. 2C  of differing sizes. 
         FIG. 2E  is a side view of the invention with two brush heads of the same size. 
         FIG. 3  is a top view of the brush holder section. 
         FIG. 4  is a section view along line c-c of  FIG. 3 . 
         FIG. 5  is an end view the dove tail grove. 
         FIG. 5A  is a section view along line d-d of  FIG. 5 . 
         FIG. 6  is a side view of the brush head. 
         FIG. 6A  is an end view of the brush head. 
         FIG. 7  is a side view of another embodiment of the invention. 
         FIG. 7A  is a side view of another embodiment of the invention with a different size of brush head. 
         FIG. 7B  is a side view of another embodiment of the invention with two brush heads of differing sizes. 
         FIG. 7C  is a side view of another embodiment of the invention with two brush heads of differing sizes whose size are different from  FIG. 7B . 
         FIG. 7D  is a side view of another embodiment of the invention with two brush heads of the same size. 
         FIG. 8  is a top view of the other embodiment of the invention of the brush holder section. 
         FIG. 8A  is a section view along line c-c of  FIG. 8 . 
         FIG. 8B  is an end view the dove tail grove of the other embodiment of the invention. 
         FIG. 8C  is a section view along line d-d of  FIG. 8B . 
         FIG. 9  is a side view of the brush head of the other embodiment of the invention. 
         FIG. 9A  is an end view of the brush head of the other embodiment of the invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       FIG. 1  is a side view of the invention.  FIG. 1  shows a paint brush  10  that has a handle  12  perpendicular to the strands  14  of the paint brush  10 . The handle  12  does not have to be exactly perpendicular to the strands  14  of the paint brush  10 . In fact it could vary up to 45 degrees either way from perpendicular. The inventor has found, however, that the closer to perpendicular the brush is the more painters like it. In  FIG. 1  the handle  12  is of sufficient size that a person can grip it easily. The brush holder portion  16  of the paint brush  10  is nearly perpendicular to this handle  12 . The brush holder portion  16  of the invention is designed and manufactured exactly as the brush portions of paint brushes presently in the market place. 
       FIG. 2A ,  2 B,  2 C,  2 D, and  2 E show another embodiment of the invention. In this invention the handle  12  is also perpendicular to the brush strands  14 . This handle  12 , like the previous embodiment, is of the size that an individual can grip easily. The brush holder portion  16  has one or more brush heads  18 . These brush heads  18  are interchangeable. Brush head  18  in  FIG. 2A ,  2 B,  2 C,  2 D, and  2 E can be removed from the paint brush  10  and be replaced with another brush head  18 . In this embodiment there are two brush heads in  FIGS. 2C ,  2 D, and  2 E,  18  and  20 , which have been placed on the brush  2 D, and  2 E brush holder portion  16  of the paint brush  10 . In the preferred embodiment the brush holder portion  16  is four inches wide and in  FIGS. 2C ,  2 D, and  2 E holds two brush heads  18  and  20 . These brushes can vary in width. The brush holder portion  16  of the paint brush  10  can be made to any width as a normal paint brush. Although the brush holder portion  16  in the preferred embodiment is four inches wide, brushes of many sizes can be placed upon it. Also, as in  FIG. 2A ,  2 B,  2 C,  2 D, or  2 E, two or more different brush heads  18  can also be placed on it. 
       FIG. 3  is a top view of the brush holder portion  16  of the embodiment of  FIG. 1 ,  2 A,  2 B,  2 C,  2 D, or  2 E.  FIG. 3  shows grooves  34  on the top of paint brush holder section  16  of paint brush  10 . These grooves  34  are placed on the bottom of dove tailed groove  28  which is shown in  FIG. 4  which is section c-c of  FIG. 3 .  FIG. 5  shows the shape of the dove tailed groove  28  which is placed on the top of the paint brush holder section  16 .  FIG. 5A  is a sectional view along line d-d of  FIG. 5  showing groove  34  which are placed on the bottom of the dove tailed groove  28  as shown in  FIG. 3 . The dove tailed groove  28  is designed to allow the paint brush heads  18  fit within. 
       FIG. 6  is a side view of the brush head  18 .  FIG. 6A  is a end view of the brush head  18 . The end view  6 A shows that the bottom of the brush head  18  has a dove tail extension  30 . This dove tail extension  30  fits within the dove tail groove  28  at the top of the brush holder portion  16 . 
       FIG. 6B  shows that at the bottom of the paint brush head  18  on its dove tail extension  30  are a set of bumps  32 . These bumps  32  are designed to fit within the grooves  34  shown in  FIGS. 3 and 5A . The paint brush head  18  of paint brush  10  has bumps  32  which fit within the groves  34  of paint brush holder  16 . One can also see the grooves  34  in  FIGS. 3 and 5A . The dove tail extension  30  and bumps  32  and the dove tail groove  28  and the grooves  34  hold the paint brush head  18  securely in place so it doesn&#39;t move while an individual is using it to paint. 
       FIGS. 7 ,  7 A,  7 B,  7 C, and  7 D shows another embodiment of the invention. In  FIGS. 7 ,  7 A,  7 B,  7 C, and  7 D the paint brush  40  looks very similar to the paint brushes now on the market.  FIG. 7  shows a paint brush  40  whose handle  42  is in line with the strands  44  of the paint brush  40 . This paint brush, however, has the same three parts as the paint brush  10  of the previous embodiment. Paint brush  40  has a handle  42 , a brush holder section  46 , and a brush head  48 . The brush holder section  46  has 1 or more brush heads  48  that can be placed up on the brush holder section  46 . In  FIGS. 7 ,  7 A,  7 B,  7 C, and  7 D the brush head  48  is interchangeable with other brush heads  48 . In this embodiment the brush holder section  46  and the brush head  48  attach together just as in the previous embodiment. The brush heads  48  for this embodiment are designed similarly to the brush heads  18  for the previous embodiment. Brush heads  18  and  48  could be interchangeable. The width of the brush holder section  46  can be made large enough so that more than one brush head could actually be placed on the holder. Thus, an individual could use, say two, two inch brush heads  48  if the brush head holder  48  width was four inches, or he could use one four inch brush head. 
       FIG. 8  shows a top view of the brush holder section  46  of the paint brush  40 . In  FIG. 8  one sees that the paint brush holder section  46  has a dove tail groove  58  at its top. This dove tail groove  58  is designed to allow the paint brush head  48  shown in  FIGS. 9 and 9A  to fit within.  FIG. 8  shows grooves  64  on the top of paint brush holder section  46  of paint brush  10 . These grooves  64  are placed on the bottom of dove tailed groove  58  which is shown in  FIG. 8A  which is section c-c of  FIG. 8 .  FIG. 8B  shows the shape of the dove tailed groove  58  which is placed on the top of the paint brush holder section  46 .  FIG. 8C  is a sectional view along line d-d of  FIG. 8B  showing groove  64  which are placed on the bottom of the dove tailed groove  58  as shown in  FIG. 8A . This dove tail groove  58  is designed to allow the paint brush head  48  shown in  FIGS. 9 and 9A  to fit within. 
       FIG. 9  is a side views the paint brush head  48 .  FIG. 9A  is an end view of the paint brush head  48 . The end view of  FIG. 9A  shows that the bottom of the paint brush head  48  has a dove tail extension  60 . This dove tail extension  60  fits within the dove tail groove  58  at the top of the paint brush holder section  46 . On its dove tail extension  60  are a set of bumps  62 . These bumps  62  are designed to fit within grooves  64  shown in  FIGS. 8 and 8C . The paint brush head  48  has bumps  62  which fit within grooves  64  of the paint brush holder section  46 . One can see the grooves  64  in the top view  8  paint brush holder section  46 . The dove tail extension  60  and bumps  362  and the dove tail groove  58  and the grooves  64  hold the paint brush holder section  46  securely in place so it doesn&#39;t move while an individual is using it to paint. 
     Changes and modifications in the specifically described embodiments can be carried out without departing from the scope of the invention which is intended to be limited only by the scope of the appending claims.