1. Field of the Invention
The present invention is directed generally to methods and devices for opening coconuts.
2. Description of the Related Art
Young coconuts are typically sold with an outermost portion of their husks removed. However, the shell of such young coconuts remains completely encased inside the remaining portion of the husk. The remaining portion of the husk is typically shaped in manner that facilitates shipping. Referring to
Currently, most people use a knife or cleaver to open young coconuts to obtain the coconut water and/or coconut meat. For example, the tapered portion “P” of the remaining portion of the husk 12 of the young coconut 10 may be removed using a knife to form an opening into the interior chamber 16 of the shell 14. Unfortunately, this conventional approach involves cutting into a hard curved surface with a knife, which carries with it a substantial risk of injury to the person trying to open the coconut. Further, to be successful and avoid injury, this approach requires skill and practice.
Complex coconut opening devices exist but such devices are too complex to be used in a domestic or small business environment. Therefore, a need exists for easier and safer methods of opening coconuts. Methods usable within a home or small business are particularly desired. Further, methods and devices for opening food and beverage items, like coconuts, must be sanitary and safe for use with food. The present application provides these and other advantages as will be apparent from the following detailed description and accompanying figures.
Turning to
The cutting assembly 106 includes a shaft 112 and a cutting mechanism 114. The shaft 112 has a proximal end portion 116 opposite a distal end portion 118. The distal end portion 118 is coupled to the cutting mechanism 114. The proximal end portion 116 is coupled to the motor 110. The cutting mechanism 114 rotates with the shaft 112 as a unit when the shaft 112 is rotated by the motor 110. The motor housing 111 helps isolate the motor 110 from the coconut 10 and pieces of coconut cut from the coconut by the cutting mechanism 114.
The proximal end portion 116 may be permanently coupled to the motor 110. Alternatively, the proximal end portion 116 of the shaft 112 may be selectively attachable to and detachable from the motor 110. For example, the shaft 112 may be detached from the motor 110 for cleaning and reattached for use. When the shaft 112 is coupled to the motor 110, the motor is operable to selectively rotate the shaft 112.
The motor 110 may be implemented using any electric motor capable of applying sufficient torque to the shaft 112 to turn the shaft and the cutting mechanism 114 when the cutting mechanism 114 is engaged with the coconut 10 to form the opening 102 therein. For example, the motor 110 may be implemented as a rotary electric motor. The motor 100 may be implemented as a fixed speed motor, a variable speed motor, and the like. In embodiments in which the motor 110 is implemented using a variable speed motor, the device 100 may include a speed control (not shown) configured to control the speed at which the motor rotates the shaft 112. The speed control (not shown) may be implemented as a button, a dial, a switch, and the like. The motor 110 may be configured for use with food products and may be sized and shaped to be portable and hand operated.
As is apparent to those of ordinary skill in the art, in embodiments in which the motor 110 is implemented as a rotary electric motor, when the motor is turned on, the motor rotates. That rotation is translated to the proximal end portion 116 of the shaft 112. The motor 110 may include an opening 122 configured to receive the proximal end portion 116 of the shaft 112. The motor housing 111 may include an opening adjacent the opening 122 configured to allow the proximal end portion 116 of the shaft 112 to be inserted into (and optionally removed from) the opening 122. In embodiments in which the shaft 112 is selectively attachable to and detachable from the motor 110, the motor includes a connector or coupler (not shown) positioned inside the opening 122 that is operable to selectively couple the proximal end portion 116 of the shaft 112. The coupler (not shown) is further configured to be decoupled from the proximal end portion 116 of the shaft 112. Any coupler suitable for coupling a shaft to a motor and selectively uncoupling a shaft from a motor may be used to construct embodiments of the device 100.
The motor 110 may include a timer (not shown) configured to limit the duration of operation of the motor when the motor is turned on. For example, the duration of operation of the motor 110 may be limited to a predetermined amount of time (e.g., about one minute, about two minutes, and the like).
The shaft 112 is configured to translate sufficient torque from the motor 110 to the cutting mechanism 114. In embodiments in which the shaft 112 is selectively attachable to and detachable from the motor 110, the proximal end portion 116 of the shaft 112 may include a key portion (not shown) or other structure configured to couple with the coupler (not shown) of the motor 110. Any structure suitable for selectively coupling a shaft to a motor and selectively uncoupling a shaft from a motor may be used to construct embodiments of the device 100.
The cutting mechanism 114 may be integrally formed with the shaft 112 or coupled thereto. The cutting mechanism 114 may be permanently or removably coupled to the distal end portion 118 of the shaft 112. By way of an example, any structure suitable for selectively coupling a cutting mechanism to a shaft and selectively uncoupling a cutting mechanism from a shaft may be used to construct embodiments of the device 100. The cutting mechanism 114 illustrated in the drawing is implemented using a conventional hole saw. In such embodiments, the cutting mechanism 114 may be coupled to the shaft 112 using an structure suitable for coupling a hole saw to a shaft for rotation thereby.
The cutting mechanism 114 illustrated has a generally cylindrical shape defined by a continuous outer sidewall 124. The sidewall 124 defines an internal channel 126. Optionally, cutting teeth 127 are formed along a lower edge 128 of the sidewall 124 defining an opening 129 into the internal channel 126. Alternatively, the cutting mechanism 114 may include a sharp blade or a serrated blade positionable against the husk 12 of the coconut 10.
A hole saw provides advantages over using a conventional drill bit because the tapered portion “P” of the coconut 10 may be at least partially received inside the internal channel 126 through the opening 129 adjacent the lower edge 128 of the sidewall 124. Thus, the tapered shaped of the tapered portion “P” may help prevent slippage of the cutting mechanism 114 on the outer surface of the husk 12 of the coconut 10. In contrast, conventional drill bits tend to slide on curved or tapered surfaces. An operator can be injured when a drill bit slips in this manner.
Optionally, the device 100 may include a housing or enclosure 130 that houses the motor 110 and at least a portion of the rotatable shaft 112. The motor 110 may be fixedly and nonrotatably mounted inside the enclosure 130. The enclosure 130 includes a lower portion 133 having an aperture 132 formed therein through which the shaft 112 may extend to position the cutting mechanism 114 outside the enclosure 130 for engagement with the coconut 10. An outside surface 131 of the enclosure is configured to be gripped by the operator when the operator is operating the device 100. Optionally, the outside surface 131 may be textured, include gripping projections, and the like to help the operator grip the enclosure 130. When forming the opening 102 in the coconut 10, the operator may press on the outside surface 131 of the enclosure 130 to press the cutting mechanism 114 against the coconut 10. As illustrated in
A switch 140 may be coupled to the enclosure 130. The switch 140 may be operated manually by an operator. The switch 140 is electrically connected to the motor 110 and is operable to selectively turn the motor 110 on and off. Thus, the switch 140 may be selectively positionable in an “on” position to turn the motor 110 on and an “off” position to turn the motor 110 off. When the motor 110 is on, the motor rotates the shaft 112. When the motor 110 is off, the motor does not rotate the shaft 112.
The enclosure 130 and the switch 140 have been omitted from
Referring to
The device 100 and/or the device 100′ may include a first detection mechanism (not shown) configured to detect when the cutting mechanism 114 is positioned against the coconut 10. If the first detection mechanism detects the cutting mechanism 114 is positioned against the coconut 10, the operator may be able to turn the motor 110 on (e.g., using the switch 140, the switch 138, and the like). On the other hand, if the first detection mechanism fails to detect that the cutting mechanism 114 is positioned against the coconut 10, the operator may be unable to turn the motor 110 on. The first detection mechanism may be implemented using a proximity sensor to detect the device 100 is within a predetermined distance from another object, such as the coconut 10. Alternatively, the first detection mechanism may be implemented as a pressure sensor configured to detect when the cutting mechanism 114 is being pressed against the coconut 10.
The device 100 and/or the device 100′ may include a second detection mechanism (not shown) configured to detect when the cutting mechanism 114 has cut through the shell 14 and is therefore inside the interior chamber 16 of the coconut 10. When the second detection mechanism detects the cutting mechanism 114 has cut through the shell 14, the motor 110 may be turned off automatically. When the second detection mechanism has not detected that the cutting mechanism 114 has cut through the shell 14, the motor 110 may be allowed to rotate the shaft 112. For example, the second detection mechanism may detect the cutting mechanism 114 has cut through the shell 14 by detecting when the motor 110 is applying less torque to the shaft 112. Thus, a reduction in an amount of torque applied by the motor 110 to the shaft 112 may signal that the cutting mechanism 114 has cut through the shell 14. By way of a non-limiting example, the second detection mechanism may detect the cutting mechanism 114 has cut through the shell 14 when the amount of torque applied by the motor 110 to the shaft 112 has reduced by a predetermined amount or is below a threshold value. Alternatively, the second detection mechanism may be implemented as a pressure sensor configured to detect when the cutting mechanism 114 is no longer being pressed against the coconut 10 (e.g., because the cutting mechanism has entered the interior chamber 16), the amount of pressure has reduced by a predetermined amount, or the amount of pressure is less than a threshold value.
The first and second detection mechanisms may be implemented using the same detection mechanism or different detection mechanisms.
As may best be viewed in
The sidewall 154 has an upper edge 157 opposite the base portion 153. When the coconut 10 is received inside the coconut receiving portion 152, the sidewall 154 helps maintain the coconut in a substantially upright orientation for opening by the device 100 (see
Optionally, the coconut holder 150 may include one or more handles 158. By way of non-limiting examples, the coconut holder 150 may include two handles. The coconut holder 150 may be used to hold the coconut 10 while a user drinks the coconut water 18 (see
The coconut holder 150 may include suction cups 160 coupled to the underside of the base portion 153 to improve the stability of the coconut holder. The suction cups 160 may be used to at least partially adhere the coconut holder 150 to a support surface “S” (such as a table top, a counter top, and the like).
The enclosure 130 and the coconut holder 150 may be combined into a single integrated assembly.
Returning to
Then, the cutting mechanism 114 is positioned against the upper portion of the coconut 10. In embodiments in which the cutting mechanism 114 is implemented as a hole saw, the hole saw is placed over the tapered portion “P” of the coconut 10. Then, the motor 110 is turned on. For example, the switch 140 is placed in the “on” position. In embodiments including the switch 138 (see
As the motor 110 operates, it rotates the shaft 112 and the cutting mechanism 114. The operator may press down on the enclosure 130 or (in embodiments that do not include the enclosure) the motor housing 111 to press the cutting mechanism 114 against the coconut 10 as the cutting mechanism 114 cuts through the husk 12 and/or the shell 14.
When the device 100 cuts completely through the husk 12 and the shell 14 of the coconut 10, the opening 102 is formed and provides access to the coconut water 18 and/or coconut meat 20. Then, the motor 110 is turned off. For example, the switch 140 is placed in the “off” position to discontinue operation of the motor 110. In embodiments including the switch 138 (see
The shaft 112 and the cutting mechanism 114 are removed from the opening 102. The shaft 112 and the cutting mechanism 114 may be removed either before or after the motor 110 is turned off (or powered down).
Optionally, after the opening 102 is formed in the coconut 10, the shaft 112 may be detached from the motor 110. For example, the proximal end portion 116 may be removed from the opening 122 in the motor 110. Once removed, the shaft 112 and/or the cutting mechanism 114 may be cleaned. In embodiments in which the cutting mechanism 114 is detachable from the shaft 112, the cutting mechanism 114 may be detached from the shaft 112 and replaced with a different cutting mechanism.
Depending upon the implementation details, the device 100 may be configured to be simple to operate, portable, easy to manufacture, easy to maintain, and/or low cost. Further, the device 100 may be configured to create an opening in a coconut quickly and safely.
The foregoing described embodiments depict different components contained within, or connected with, different other components. It is to be understood that such depicted architectures are merely exemplary, and that in fact many other architectures can be implemented which will achieve the same functionality. In a conceptual sense, any arrangement of components to achieve the same functionality is effectively “associated” such that the desired functionality is achieved. Hence, any two components herein combined to achieve a particular functionality can be seen as “associated with” each other such that the desired functionality is achieved, irrespective of architectures or intermedial components. Likewise, any two components so associated can also be viewed as being “operably connected,” or “operably coupled,” to each other to achieve the desired functionality.
While particular embodiments of the present invention have been shown and described, it will be obvious to those skilled in the art that, based upon the teachings herein, changes and modifications may be made without departing from this invention and its broader aspects and, therefore, the appended claims are to encompass within their scope all such changes and modifications as are within the true spirit and scope of this invention. Furthermore, it is to be understood that the invention is solely defined by the appended claims. It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits any particular claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and/or “an” should typically be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of “two recitations,” without other modifiers, typically means at least two recitations, or two or more recitations).
Accordingly, the invention is not limited except as by the appended claims.
This application claims the benefit of U.S. Provisional Application No. 61/264,264, filed Nov. 25, 2009, which is incorporated herein by reference in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| 61264264 | Nov 2009 | US |