Field of the Invention
The present invention relates to a portable device for scraping coconut pulp from the coconut shell. More specifically, the present invention relates to an automatic, portable, muted, coconut pulp Scraping device. Background of Invention
Coconut fruit is made up of a thick fibrous fruit coat known as the husk, a hard protective endocarp or shell (hereafter called shell) and a fleshy white edible pulp enclosed in the shell. Coconut has a large spherical or elliptical hard shell and the outer dimension of the coconuts shells varies from 3.5 to 6 inches. The removal of this pulp from the shell is a laborious task. Conventionally, the pulp is scraped out of the shell by holding the scraper plate by the legs in a sitting position and pushing the halved shell of the coconut back and forth by both hands over the scraper. This technique puts great strain on arms and legs of the person scraping and often leads to hand injury due to slippage.
Tabletop manual coconut scraper are also available in the market where the operation involves fixing the scraper on table by a fixing mechanism and then holding the shell with pulp on the grating blade and manually turning the shaft connected to a grating blade to rotate the blade. The shell is then pressed onto the rotating blade to grate the pulp. This involves both hands of the user and considerable muscle power. Improvement over table mounted coconut graters are electric power graters where the shaft is rotated by a driving means such as a motor power. Although this feature facilitates minimal effort of muscle power, the user has to still hold the shell by hand over the scraper and will be restricted to the machine until the process of scraping is completed. Also, chances of injury due to accidental slippage of hand remain. US6722269 describes a coconut shredding/grating apparatus that includes a base member including main base portion having top and bottom sides; and also includes a housing being mounted upon the top side of the base member and having front, rear and side walls, and also having a hole being disposed through the front wall; and further includes a coconut shredding assembly including a motor being disposed in the housing and having a motor shaft, and also including a control assembly for energizing and operating the motor, and further including a coconut shredding member being detachably connected to the motor shaft for rotation therewith; and also includes a coconut support assembly including a coconut support member being removably secured upon the base member; and further includes a tray being

removably disposed upon the base member for receiving shredded and grated
coconut.
1649/CHE/2006 discloses a Semi-Automatic Coconut Scraping machine has three
main parts. One is the rotating Coconut holding mechanism, which is a semi-spherical
dome inside which the split coconut is placed, with the help of a tightening mechanism
which hold the coconut from three sides. It is rotated with the help of an AC motor.
The coconut is scrapped with the help of a Scraping blade which is bud shaped and
which can be moved to any part of the rotating coconut with the help of a lever which
is placed behind the coconut scrapper shaft and which moves up and down and
forward and backward according to our need and the coconut can be scrapped without
much efforts when it come into contact with the kernel of the coconut. It uses AC
motor having a quarter horse power and 1440 rpm.
A problem with US6722269 and 1649/CHE/2006 is that their coconut holding
mechanism or coconut support member is a fixed system that has to be manually
maneuvered to allow uniform grating of the entire interior surface of pulp side of the
shell. Moreover both the devices are complicated, bulky having numerous
attachments. Additionally, 1649/CHE/2006 uses an AC motor having a quarter horse
power and 1440 rpm that creates a lot of noise and consuming high energy in the
process. Also, none of the above patents states as to how the coconut shells of varying
sizes canbe shredded using the same device.
Thus, none of the above state of the art device individually or collectively
attempts to provide a portable automatic coconut pulp scraper functional with
coconut shell of varying sizes and eliminates the need for any physical contact of
the user during the scraping process, thereby preventing any kind of slippage
accident.
Accordingly there was a long felt need to have a portable automatic coconut pulp
scraper functional with coconut shell of varying sizesand requiring no involvement
at the user end during scraping process. Also, there was a need for such portable
automatic coconut pulp scraperto beeconomical, time saving, noise free and energy
efficient.
Object of the Invention
It is thus the basic object of the present invention is to provide a portable automatic
coconut pulp scraper requiring minimal time and attention at the user end.

Another object of the present invention is to provide a portable automatic coconut pulp scraper, which is functional with coconut shell of varying sizes. Another object of the present invention is to provide a portable automatic coconut pulp scraper that eliminates the use of muscle power during coconut pulp scraping process.
Another object of the present invention is to provide a portable automatic coconut pulp scraper that eliminates the need for any physical contact of the user during the scraping process thereby preventing any kind of slippage accident. Another object of the present invention is to provide an economical, energy efficient, muted, automatic portable coconut pulp scraper. Summary of the Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the claimed subject matter. This summary is not an extensive overview. It is not intended to identify key elements or to delineate the scope of the claimed subject matter. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later. Thus, according to the basic aspect of the present invention there is provided a portable automatic coconut scraper comprising, a bottom housing holding the driving means;
a shaft fitted with female coupler at one end and connected to the driving means at other end;
a collector for collecting the scraped coconut pulp;
a metal bush having a specially designed scraping member at one end and a male coupler at other end;
a specially designed metallic frame attached to the metal bush at one end and a coconut holder at other end;
a driving means to actuate the shaft and impart rotary motion;
an AC to DC converter fitted inside the bottom housing to give required power supply to the driving means;
a power source to power the driving means;
a switching means to activate and deactivate the power source for energizing or de-energizing the driving means.

In an aspect of the invention there is provided a portable automatic coconut scraper
wherein the metallic frame comprises of two halves that is attached with a spring to
exert pressure vertically on the scraping member to aid in scraping during operation.
In an aspect of the invention there is provided a portable automatic coconut scraper
wherein the coconut holder consists of multiple clamps secured with multiple springs
to a central disc having serrated margin. A lever operates the clamp to hold in coconut
shell of varying dimension.
In an aspect of the invention there is provided a portable automatic coconut scraper
wherein the scraping member consisting of two blades in the shape of quadrant of a
circle attached together at their straight face with a spring such that it can slide in
closer or slide out further thereby adjusting its dimension automatically as per the
changing inner dimension of coconut shell. Thus, ensuring uniform scraping of the
entire interior surface of the pulp side of coconut shell.
In an aspect of the invention there is provided a portable automatic coconut scraper
wherein the curved face of the quadrant blades has serrated margin with each
serration of the depth of approximately 0.5 to 1 mm.
In an aspect of the invention, here is provided a portable automatic coconut scraper
wherein the specially designed scraping member on the metal bush is connected to the
shaft through the male female coupler.
In an aspect of the invention, there is provided a portable automatic coconut scraper
wherein the driving means impart rotary motion to the scraping member at a desired
speed and torque.
In an aspect of the invention, there is provided a portable automatic coconut scraper
fitted with an overload protection that stops the driving means in case of overload.
In an aspect of the invention, a method of operation of a portable automatic coconut
scraper comprising:
Loading a half.shell of a split coconut in the coconut holderby maneuvering the lever
such that the pulp side is in contact with the scraping member, wherein the metallic
frame attached to the coconut holder exerts pressure vertically on the scraping
member and the scraping member adjust its dimension constantly according to the
changing dimension of inner surface of the coconutduring operation;
Switched on the switching means to activate the driving means for rotation of the
shaft;

scraping of pulp by means of rotating motion of the scraping member by the rotation of the shaft at a desired speed and torque; Collecting the scraped coconut pulp is the collector.
Description of accompanying Drawings:
The accompanying drawings, which are incorporated in and constitute a part of the
specification, illustrate an embodiment of the invention, and together with the
description, serve to explain the principles of the invention.
Fig. 1 Illustrates a preferred a portable automatic coconut scraper in accordance with
the present invention
Fig. 2 Illustrates an exploded view of metal frame and coconut holder
Fig 3. Illustrates a view of the Scraping member
Detailed description of Invention with reference to Drawings:
An exemplary embodiment of the present invention will be described in reference to
the accompanying drawing. Wherever possible, same or similar reference numerals
are used in the drawings and the description to refer to the same or like parts or steps.
Reference is now drawn from accompanying figure 1. As shown in figure 1 the
present a portable automatic coconut scraper embodiment comprises,
a bottom housing (108) holding the driving means (107);
a shaft (109) fitted with female coupler (106) at one end and connected to the driving
means (107) at other end;
a collector (104) for collecting the scraped coconut pulp;
a metal bush (103) having a specially designed scraping member (102) at one end and
a male coupler (105) at other end;
a specially designed metallic frame (100) attached to the metal bush (103) and having
a coconut holder (101) to hold the coconut shell in place;
a driving means (107) to actuate the shaft (109) and impart rotary motion to the
scraping member (102);
an AC to DC converter fitted inside the bottom housing to give required power supply
to the driving means; a power source to power the driving means;
a switching (110) means to activate and deactivate the power source for energizing or
de-energizing the driving means.
Reference is now drawn from accompanying figure 2. As shown in figure 2 the
present embodiment of a portable automatic coconut grater includes a metal frame

(200) and coconut holder (204) for holding the split coconut shell.The metallic frame
(200) comprises of two halves, attached with a spring (202) to exert pressure
vertically on the scraping member to aid in scraping during operation. The coconut
holder (204) consists of multiple clamps (205) secured with multiple springs (207) to
a central disc having serrated margin (203). A lever (206) operates the opening and
closing of the clamps (205) to hold in coconut shell of varying dimension.
The alignment of the scraping member and the coconut holder (204) is made in such
way that coconut will always remain pressed against the scraping blade irrespective of
the position of the blade. This ensures uniform scraping of the entire interior surface
of the pulp side of coconut shell.
Reference is now drawn from accompanying figure 3. As shown in figure 3 the
present portable automatic coconut grater embodiment includes a specially designed
scraping member (102) consisting of two blades (104, 105) in the shape of quadrant
of a circle attached together at their straight face with a spring (103) such that it can
slide in closer or slide out further thereby adjusting its dimension automatically as per
the changing inner dimension of coconut shell. Thus, ensuring uniform scraping of
the entire interior surface of the pulp side of coconut shell. The curved face of the
quadrant blades have serrated margin with each serration of the depth of
approximately 0.5 to 1 mm. The blades are made up of stainless steel sheet of 1mm in
thickness. The scrapping member is attached to the main shaft (111).
In accordance with the preferred embodiment of the invention, there is provided a
portable automatic coconut scraper wherein the specially designed scraping member
on the metal bush is connected to the shaft through the male female coupler.
In accordance with the preferred embodiment of the invention, there is provided a
portable automatic coconut scraper wherein the driving means impart rotary motion to
the blade at a desired speed ranging from 100 rpm - 300 rpm.
In accordance with the preferred embodiment of the invention, there is provided a
portable automatic coconut scraper wherein the driving means impart rotary motion to
the scraping member at a desired torque ranging from 22 kg cm -8 kg cm. However
stall torque is around 32 kg cm.
In accordance with the preferred embodiment of the invention, power supply from a
power source is provides required power to the driving means, which may be a DC
gear motor of 12 V consuming current ranging from 0.8A to 1.9A when working on
maximum efficiency.

In accordance with the preferred embodiment of the invention, the housing and collector of the portable automatic coconut scraper are preferably made up of thermo plastic & thermo setting materialand the scraping member, shaft, metal frame, coconut holder are preferably made up of stainless steel /brass/gun metal. In accordance with the preferred embodiment of the invention, the power source for energizing the gear motor may be rechargeable battery, solar, electric and the like. In accordance with the preferred embodiment of the invention, there is provided a portable automatic coconut scraper fitted with an overload protection that stops the gear motor in case of overload.
In an aspect of the invention, a method of operation of a portable automatic coconut scraper comprises of loading a half shell of a split coconut in the coconut holder, by maneuvering the lever, such that the pulp side is in contact with the scraping member. The switching means is switched on to activate the gear motor for rotation of the shaft. The shaft rotates the scraping member at a preferable speed of 200 rpm with torque of 11 Kg Cm when performing the scraping of thepulp. The metal frame exert pressure on the scraping member during operation and the coconut holder hold the coconut shell firmly onto the scraping member while the scraping member constantly adjust its dimension with changing dimension of inner surface of the coconut due to scraping off of pulp, thereby ensuring uniform scraping of the entire interior surface of the pulp side of coconut shell within 4 to 5 minutes. The scraped coconut pulp is collected in the collector.
The speed, torque and energy efficiency of the machine using a 12 V DC gear motor is documented through numerous and presented in Table 1:
Table 1

si no. Speed (in rpm) Stall
Torque(in Kg cm) No load current Maximum Current ( in Ampere) Time taken for complete Scraping of a half shell of a split coconut( mins)
1 100 22 0.8 1.9 6-7
2 200 11 0.8 1.9 4-5
3 300 8 0.8 1.9 3-4
The production cost of one unit would be estimated to be rupees twelve hundred only, making it fairly economical for average household.

It will readily be apparent that numerous modification and alterations can be made to the processes described in the foregoing examples without departing from the principles underlying the invention, and all such modifications and alterations are intended to be embraced by this application.

Claims
I claim
1. A portable automatic coconut scraper comprising
a bottom housing holding the driving means;
a shaft fitted with female coupler at one end and connected to the driving
means at other end;
a collector for collecting the scraped coconut pulp, a metal bush having a
specially designed scraping member at one end and a male coupler at other
end;
a specially designed metallic frame attached to the metal bush at one end and a
coconut holderat other end;
a driving means to actuate the shaft and impart rotary motion to the metal
bush;
an AC to DC convertor fitted inside the bottom housing to give required
power supply to the driving means;
a power source to power the driving means;
a switching means to activate and deactivate the power source for energizing
or de-energizing the driving means.
2. A portable automatic coconut scraper as claimed in Claim 1 wherein the metallic frame comprises of two halves that is attached with a spring to exert pressure vertically on the scraping member to aid in scraping during operation.
3. A portable automatic coconut scraper as claimed in Claim 1 wherein the coconut holder consists of multiple clamps secured with multiple springs to a central disc having serrated margin and a lever maneuvering the clamps.
4. A portable automatic coconut scraper as claimed in Claim 1 wherein the specially designed scraping member comprises of two blades in the shape of quadrant of a circle attached together at their straight face with a spring such that it can slide in closer or slide out further thereby adjusting its dimension automatically as per the changing inner dimension of coconut shell during scraping.
5. A portable automatic coconut scraper as claimed in Claim land 4 wherein the curved face of the quadrant blades has serrated margin with each serration of the depth ranging from0.5 to 1 mm.

6. A portable automatic coconut scraper as claimed in Claim 1 and 5 wherein the specially designed scraping member on the metal bush is connected to the shaft through the male female coupler.
7. A portable automatic coconut scraper as claimed in Claim 1 wherein the driving means impart rotary motion to the scraping member at a desired speed ranging from 100 rpm - 300 rpm and desired torque ranging from 22 kg cm -8 kg cm.
8. A portable automatic coconut scraper as claimed in Claim 1 is fitted with an overload protection that stops the driving means in case of overload.
9. A method of operation of A portable automatic coconut scraper comprising: Loading a half shell of a split coconut in the coconut holder by maneuvering the lever such that the pulp side in contact with the scraping member, wherein the metallic frame attached to the coconut holder exerts pressure vertically on the scraping member and the scraping member adjust its dimension constantly according to thechanging dimension of inner surface of the coconut during operation;
Switched on the switching means to activate the driving means for rotation of
the shaft;
Scraping of pulp by means of rotating motion of the scraping member by the
rotation of the shaft at a desired speed and torque;
Collecting the scraped coconut is the collector.