AU2005100657A4 - Pressure paint brush - Google Patents

Description

AUSTRALIA

Patents Act 1990 COMPLETE SPECIFICATION INNOVATION PATENT PRESSURE PAINTBRUSH The following statement is a full description of this Invention, including the best method of performing known to me: PRESSURE

PAINTBRUSH

For many years painters have used paintbrush and bucket for painting.

Even though technology presenting new methods for painting, still in some cases using paintbrush and bucket is the only option for painter, but we should notice that using paintbrush and bucket has its own problems and limitations.

Here are some of problems causes by using paintbrush and bucket: Paintbrush and bucket has to be washed after each use and at the end of every working day, with every wash some paint is throwing away and causing damage to environment.

Carrying bucket of paint is hard and needs carefulness specially when working in high places like at the top of ladder and sometimes causes loosing concentration and potentially is dangerous.

Always there is probability of overturning bucket and dropping paint on the floor and causing damage.

A lot of time is wasting because painter has to take a small amount of paint by using paintbrush for each use, and after every working day he has to spend a lot of time for washing and cleaning of paintbrush and bucket.

This Invention significantly reduces defects of using paintbrush and bucket.

A pressure paintbrush according with this invention is a normal paintbrush that a number of thin and flexible pipes are placed between its bristles and these thin pipes by a hose are connected to an airtight container of paint with compressed air, pressure of air carries paint to the thin pipes and to the tip of paintbrush, also exition of paint can be controlled by a valve that is placed inside the handle of paintbrush, this paintbrush has a cap for covering its head and keeping it from drying while is not in use.

Figures 2 and 3 Figure 2 is showing pressure paintbrush from thickness.

Figure 3 is showing pressure paintbrush from width.

1 Paint from container of paint through a hose enters to the paintbrush, pressure of compressed air inside the container pushes the paint to the hose and from hose enters to the paintbrush.

2 Paint passes through a filter; this filter stops pollutions and bigger substances those may cause damage to sensitive parts of paintbrush like thin pipes (part This filter can be made from plastic or metal and it is removable so that after each use can be removed and cleaned.

3 Paint after passing through filter enters to a pipe this pipe can be made from plastic or metal caliber of this pipe depends on the size of paintbrush and pressure of paint and should be enough to carry paint to all thin pipes(part 7).

4 Paint after passing through this pipe stops behind a valve, entering amount of paint to thin pipes (part 7) can be controlled by opening and closing of this valve.

Opening and closing of the valve can be controlled by using a button placed on the handle of paintbrush.

6 Paint after passing through valve enters to a short pipe and from there enters to all thin pipes.

7 These thin pipes are placed between the bristles of the paintbrush they should be exactly in the middle of the bristles so that number of bristles around the thin pipes be the same, these thin pipes should be made from flexible plastic, their flexibility should be the same with the bristles, caliber and number of these thin pipes depend on the size of paintbrush and pressure of paint, for example in paintbrush with ten centimeters width and two centimeters thickness, by using container of paint with hand pump their caliber should be about 0.5 millimeter and their number should be about 200 to 400. Their length depends on the size of paintbrush and should be about 5 millimeters shorter than the bristles so that thin pips have no direct contact with the surface of job. Also these thin and flexible pipes can be used instead of the bristles of paintbrush, in this case they have direct contact with the 3 surface of job and this reduces the quality of work and it is better to use a combination of thin pipes and bristles.

8 Paint after passing trough thin pips exits from their end that placed at the near end of the bristles of the paintbrush where can be used for painting.

9 The bristles of the paintbrush like a normal paintbrush can be made from plastic or natural hairs.

As it mentioned in number 7the bristles of the paintbrush -should be longer than thin pips.

11 The bristles of the paintbrush and thin pips are fixed together by glue on the handle of the paintbrush so that the only way for pant to exit is trough the thin pips.

12 Body or handle of pressure paintbrush can be made from wood or plastic or metal or a combination of them.

Figure 4 Figure 4 is showing pressure paintbrush and its removable parts from outside.

1 A pressure paintbrush, trough a hose is connected to. an airtight container of paint, this hose from one of its ends like bolt and nut tightly screws to the exit pipe of container of paint. This part can be made from metal or plastic.

2 The hose should be made from flexible plastic; its length depends on the distance between paintbrush and container of paint.

3 Other end of this hose also tightly screws to entry pipe of paintbrush (part 4).

4 Entry pipe of paintbrush can be made from metal or plastic.

Entry pipe is connected to a cup-shape part that is removable and can be screwed and unscrewed to the bottom of paintbrush (part 8).

A removable filter is placed in this part, paint passes trough this part and filter and enter to paintbrush, this cup-shape part can be made from plastic or metal.

6 There are two washers that are placed between both sides of removable filter and parts 5 and 8, to stop paint from leaking.

These washers can be made from rubber.

7 The removable filter can be made from metal or plastic, its holes should be smaller than bores of thin pipes that are placed between the hairs of the paintbrush. This filter can be removed and cleaned.

8 Bottom of paintbrush screws to cup-shape part of paintbrush (part and trough a pipe is connected to the valve that is placed inside the handle of paintbrush, it can be made from plastic or metal.

9 The button for controlling exition of paint is placed on the handle of paintbrush, by pushing this button paint exits from thin pipes that are placed between the hairs of the paintbrush.

Pressure paintbrush also has a cap. This cap covers the head and the bristles of the paintbrush and keep it from drying while is not in use, so that the paintbrush does not need to be washed after each use and after every working day and same paintbrush without washing can be kept until end of job. Also by using this cap carrying paintbrush will be easier because by placing this cover on the paintbrush it can be carried in pocket or specified place so that both hands of painter will be free, this is important specially when claiming ladder or coming down from it and this reduces theriskof falling down from high places. This cap covers the bristles and some part of the handle of paintbrush. Its length considering the size of paintbrush is abut 20 percent longer than the bristles, this extra length covers some part of the handle that is designed to fit in the cap, this part is distinguished by a corrugation from other part of the handle, dimensions of the opening of the cap is the same with this part of handle, so that when it placed on the paintbrush stops air to enter and stops paint to leak, in other words it will be air tight. To put the cap on the paintbrush simply it should be pushed from the head of paintbrush towards the handle. This cap is preferably made from plastic so that flexibility of plastic helps to put it on the paintbrush tightly and take it of easily without damaging the paintbrush. However metal can also be used.

11 As it mentioned in number 10, handle of paintbrush before bristles is corrugated. When the cup is placed on the paintbrush this corrugation helps to place the cup tightly and in the right position.

Figure Figure 5 is showing an example of the container of paint; this container is the same with pressure sprayer with some changes.

1 Body of the container considering the size of paintbrush and its application can be in deferent shapes and sizes. It can be made from plastic or metal.

2 This container has a lid that tightly screws on the opening of container and make the container airtight so that stops air to exit and stops paint from leaking, it can be made from plastic or metal.

3 Like a pressure sprayer this container has an air pump and using this pump compresses the air inside the container, pressure of air pushes the paint to the exit pipe and to the paintbrush. This air pump can be made from plastic or metal.

4 Exition of paint can be controlled by a valve. By opening this valve paint flows to the hose and paintbrush. When paintbrush is not in use, this valve should be closed. It can be made from metal or plastic.

Paint exits from a short pipe placed on the lid of the container, the hose from one of its ends tightly screws to this part and from other end screws to the bottom of paintbrush.

6 This container has a handle. For carrying the container this handle can be used to put the container on belt and wear it on waist.

Considering type ofjob and size of container it can also be carried on back or by hand or can be putten on the ground.

Carrying the container of paint on waist or on back helps painter to move easily without being worried about dropping the paint and this is important specially when working in high places, because both hands are free to keep the balance and this reduces risk of falling down.

Also a container of paint with an electric pump or an electric pump or a hand pump inside the handle of paintbrush can be used instead of using container of paint with compressed air, but the cheapest and easiest way to carry paint to the paintbrush as explained is using container of paint with compressed air.

Claims (12)

1. A handle that is made from wood or plastic or metal. The shape of this handle is like the handle of a normal paintbrush.

2. A number of thin pipes those instead of bristles are placed on the bottom end of the handle or a combination of thin pipes and bristles are placed on the bottom end of the handle, these thin pipes are made from flexible plastic and their flexibility are the same with the bristles of the paintbrush. They are parallel with the bristles and same with the bristles from one end are free and from other end are fixed in the handle, their place are in the middle of the bristles so that the number of bristles around the thin pipes are the same and their length are five millimeters shorter than the bristles. Their caliber and their number are depended on the size and the function of paintbrush.

3. As claimed in claim 2 thin pipes are fixed to the handle and from one end are free and from other end are connected to a thicker pipe that is placed inside the handle of paintbrush. This thicker pipe is made from plastic or metal and from one end is connected to the thin pipes and from other end is connected to a valve and from there is connected to a removable filter and from filter is connected to the exit pipe of pressure paintbrush that is placed on the top end of the handle of the paintbrush.

4. As claimed in claim 3 a valve is placed between the thin pipes and the removable filter. This valve can be made from plastic or metal and can be opened and closed by using a button that is placed on the handle of paintbrush. According to claim 3 a removable filter is placed between the valve and the entry pipe of paintbrush. This filter can be made from plastic or metal and its holes should be smaller than caliber of the thin pipes. This filter can be removed and cleaned; it has two washers those are placed in both sides of filter.

These washers are made from rubber.

6. Pressure paintbrush, at the top end of its handle has a cup-shape part that is removable and as claimed in claim 5 a removable filter is placed in this part. This part can be screwed to the bottom of paintbrush and by unscrewing this cup-shape part; the filter can be removed and cleaned. A short pipe is placed on this cup-shape part that is the entry pipe of paintbrush and a hose screws on it.

7. As claimed in claim 6 a pressure paintbrush has a hose that connects the paintbrush to a container of paint with compressed air, this hose from one end screws to the entry pipe of pressure paintbrush and from other end screws to the exit pipe of container of paint. This hose should be made from flexible plastic and its caliber and length depends on the size and the function of paintbrush.

8. According to claim 7 a pressure paintbrush, through a hose is connected to a container of paint; shape and size of this container depend on the size and function of pressure paintbrush and it can be made from plastic or metal. This container has a lid that screws tightly on the opening of container and makes the container airtight. An air pump and an exit pipe and a valve are fixed on the lid; the air pump can work by electricity or by hand, using this air pump compresses the air inside the container.

9. According to claim 8 the container of paint has an air pump, using this air pump compresses the air inside the container and pressure of the air carries paint to a pipe that is placed inside the container, paint after passing trough a filter stops behind a valve that is placed on the lid; by opening and closing this valve exition of paint can be controlled; paint after passing trough this valve exits from the exit pipe that is placed on the lid and from there enter to the hose and after passing trough the hose enters to the pressure paintbrush.

A pressure paintbrush has a cap that can be used for covering the bristles of the paintbrush and keep them from drying while the paintbrush is not in use; the length of this cap is 20 percent longer than the bristles, this extra length covers some part of the handle of the paintbrush that is designed to fit in the cap and by a corrugation is distinguished from other part of the handle, dimensions of the opening of the cap is the same with this part of the handle; this cap can be made from plastic or metal.

11 .According to claims 1 to 10 a pressure paintbrush also can work by using an electric pump that is placed inside the handle or a hand pump that is placed inside the handle or an electric pump that is placed inside the container of paint; in these cases electric pump or hand pump, directly pump the paint to the thin pipes.

12.A pressure paintbrush substantially as herein before described with reference to figures 1-5 of the accompanying drawings. Ali Dehghani Ashkezari 15 August 2005