Patent Application
20140048459
The present invention relates to a grape processing apparatus and method for processing grapes, and more specifically to a grape processing apparatus and method which functions to separate the individual grapes from the associated stem material in a gentle fashion so as to not injure the individual grapes during the separation process, and which further collects and transports the individual grapes for further processing.
Various sorting devices and methodology have been developed through the years for the purposes of identifying defective produce in a stream of produce so as to provide a uniformly sorted produce stream which may be utilized for various end uses. In U.S. patent application Ser. No. 13/373,622 which was filed on Nov. 22, 2011, the teachings of which are incorporated by reference herein, a sorting apparatus is described and which has particular usefulness in sorting a stream of grapes which might be subsequently processed for use in wine production, for example. The sorting apparatus as described in this co-pending application is useful, in particular, in identifying ruptured or damaged grapes which have been separated from associated stem material and further is operable to remove non-grape substances, so-called, Material Other Than Grapes (MOG) from the stream of grapes which are being processed.
In this co-pending patent application, a prior art de-stemming apparatus comprising a drum-and-beater arrangement is employed and which separates the grapes from the stem material (MOG). The separated grapes are thereafter directed to an inspection station where they are optically inspected and then separated from MOG so as to provide a uniform final grape product stream which may be processed for wine production, and the like.
The prior art drum-and-beater de-stemmers produce a relatively large quantity of stem pieces which are known in the industry as “jacks.” The production of MOG complicates the effective sorting of the resulting separated individual berries. It has been discovered, that the present prior art de-stemmer designs produce a fair amount of smashed, or split grapes which are considered to be a lost product. In prior art practices, the smashed/split grapes, and jack stems are removed mechanically, typically with vibrating screens or in the case of the above-identified earlier filed pending U.S. application are removed optically. It has been discovered that these two defects, that being the split grapes, and large numbers of jack-stems may tend to cause optical sorting problems during the sorting process, and therefore as a result, good grape product is often lost during the separation process. Therefore, high density product passing through the inspection station will typically result in ejected good product along with defective products. In the prior art drum-and-beater arrangement, the device literally beats the individual berries off of the stem. The high speed rotation of the beater also tends to impact the individual grapes producing many split-skin berries. This same impact of the beaters often breaks the main stem into smaller pieces which then have to be removed by the sorting station which is positioned downstream from the de-stemmer. This high concentration of split grapes, and jacks (MOG) suggests that the prior art drum-and-beater de-stemmer designs are aggressive in their material handling qualities, and therefore produces a needless amount of defective downstream product.
A grape processing apparatus and method which avoids the detriments individually associated with the prior art devices employed heretofore for separating grapes from their associated stem material is the subject matter of the present patent application.
A first aspect of the present invention relates to a grape processing method which includes providing a screen having a top surface which defines a multiplicity of apertures having a given size; providing a cleated conveyor belt having a bottom flight which is spaced a predetermined distance from the top surface of the screen; and supplying a source of bunches of grapes having both individual grapes which are attached to associated stems, and which is fed into the predetermined space defined between the bottom flight of the cleated conveyor belt and the screen, and wherein the bottom flight of the cleated conveyor belt moves the individual bunches of grapes along the screen in a rolling and tumbling action to separate the individual grapes from the associated stems, and wherein the individual grapes pass through the multiplicity of apertures which are defined by the screen for collection.
A further aspect of the present invention relates to a grape processing method which includes providing a vibratory conveyor having a supporting, conveying surface which reciprocates, so as to cause a source of harvested and individual grapes to move along a given path of travel, and wherein the source of harvested individual grapes are derived from individual bunches which include both a multiplicity of individual grapes and associated stems attached to the grapes; providing a screen, defining a multiplicity of apertures, and which is mounted on the vibratory conveyor, and which is further located in spaced relationship relative to the supporting, conveying surface of the vibratory conveyor, and which additionally reciprocates in unison with the supporting conveying surface; and providing a cleated continuous conveyor belt and positioning the cleated continuous conveyor belt in spaced, at least partially covering relationship over the screen and which is mounted on the vibratory conveyor, and wherein the cleated continuous conveyor belt has a top flight, and a bottom flight which is located in spaced relation relative the screen; and depositing the source of the harvested bunches of grapes are first deposited on the top flight, and then secondly depositing the bunches of grapes onto the screen, and wherein the respective cleats on the bottom flight of the cleated continuous conveyor belt forcibly move the harvested bunches of grapes along the reciprocating screen in a rolling and tumbling action which facilitates the separation of the respective grapes from the associated stems, and further causes the separated grapes to pass through the apertures defined by the screen, and be received on the supporting, conveying surface of the vibratory conveyor for transport along the path of travel for collection.
These and other aspects of the present invention will be discussed in greater detail hereinafter.
Preferred embodiments of the present invention are described, below, with reference to the following accompanying drawings:
This disclosure of the invention is submitted in furtherance of the constitutional purposes of the U.S. patent laws “to promote the progress of science and useful arts.” (Article I, Section 8).
A grape processing apparatus and related method of the present invention is generally indicated by the numeral 10 in
Referring still to
As should be understood, the vibratory motor 31, when energized, is operable to impart vibratory force so as to cause reciprocal vibratory motion of the vibratory conveyor bed 35, and which is effective for moving a given product along the vibratory conveyor bed 35. The presently designed arrangement as seen in the drawings is considered to be an excited frame vibratory conveyor which is well known in the art. However, other vibratory conveyor designs such as direct-drive conveyors would work with equal success. Still referring to
The grape processing apparatus and method of the present invention 10 further includes providing a screen assembly which is generally indicated by the numeral 50 and which is releasably mounted by way of the releasable latches 45, in a predetermined spaced relationship over the supporting, conveying surface 44 as defined by the vibratory conveyor bed 35. The screen assembly 50 includes a first portion which is indicated by the numeral 51 (
The first portion 51 of the screen assembly 50 has a first intake end 60 (
The screen assembly 50 includes a third portion 70, as best seen in
Again, referring to
As will be appreciated from a study of
The operation of the described embodiment of the present invention is believed to be readily apparent, and is briefly summarized at this point.
In its broadest aspect, the present invention relates to a grape processing apparatus and methodology 10 which includes providing a screen 50 having a top surface 56, and which defines a multiplicity of apertures 66 having a given size. The present invention also includes providing a cleated conveyor belt 100 having a bottom flight 104 which is spaced a predetermined distance from the top surface 56 of the screen 50. Still further, the grape processing apparatus and methodology 10 includes supplying a source of bunches of grapes 110 having both individual grapes 111 which are attached to associated stems 112. The bunches of grapes are fed or delivered into the predetermined space defined between the bottom flight 104 of the cleated conveyor belt 100 and the screen 50. The bottom flight 100 of the cleated conveyor belt 100 moves the individual bunches of grapes 110 along the screen 50 in a rolling and tumbling action to separate the individual grapes 111 from the associated stems 112. The individual separated grapes then pass through the multiplicity of apertures 66 which are defined by the screen for collection. The separated stems 112 as seen in
The grape processing apparatus and methodology 10, as described, includes supplying a vibratory conveyor 35 having a supporting conveying surface 44 which is mounted in spaced, gravity receiving relationship relative to the screen 50. The screen 50 is releasably mounted on the vibratory conveyor and reciprocally vibrates in substantial unison with the vibratory conveyor 35. In the arrangement as described, above, the cleated continuous conveyor belt 100 is held in spaced relationship relative to the vibratory conveyor 35 by a frame. In this arrangement, the frame is substantially stationary, and is not affected by the vibratory motion of the underlying vibratory conveyor 35.
The vibratory conveyor 35 has a length and width dimension, and a first intake end 41, and a second, opposite discharge end 42. The screen 50, as earlier described, is located in at least partial covering relation over the supporting conveying surface 44 of the vibratory conveyor 35. Still further the screen 50 has a length and width dimension which is less than the length and width dimension of the underlying vibratory conveyor 35. The cleated conveyor belt 100 is continuous, and has a top flight 103 which is spaced from the bottom flight 104. The supplied source of bunches of grapes 110 are first deposited on the top flight 103, and are then carried along a given path of travel 108 for deposit in a location near to, but spaced upwardly from, the first intake end 41 of the vibratory conveyor 35. The bottom flight 104 of the cleated conveyor belt 100 forcibly engages the individual bunches of grapes and then moves the individual bunches of grapes 110 along the top surface 56 of the screen 50 in a rolling and tumbling action to facilitate the separation of the individual grapes 111 from the associated stems 112. The individual grapes, as earlier described, pass under the influence of gravity through the apertures 66 which are defined by the screen 50 for collection on the supporting conveying surface 44 of the vibratory conveyor 35, and for transport to the second discharge end 42 therefor. In the arrangement as seen in the drawings the cleated conveyor belt 100 has individual cleats 105 which are flexible, and which are located in a substantially non-perpendicular orientated relative to the cleated conveyor belt 100. The respective cleats 105 only minimally engage the top surface 56 of the underlying screen 50. The individual cleats are located in predetermined, spaced locations of greater than about 4 inches of separation along the cleated conveyor belt.
The bottom flight 104 of the cleated conveyor belt 100 is spaced from the top surface of the screen 50 by distance of greater than about 4 inches. The respective apertures 66 which are defined by the screen 50 have a width dimension of greater than of about one-half inches. In the arrangement as seen in the drawings, the screen 50 comprises a multiplicity of elongated, spaced, substantially transversely disposed members 65. The apertures 66 are defined between the respective elongated spaced, substantially elongated members 65. In an alternative form of the invention the screen 50 comprises a wire mesh or grating which defines a multiplicity of apertures. This second form of the invention is not shown. In the arrangement as seen in the drawings the cleated continuous conveyor belt 100 moves the individual bunches of grapes 110 to be processed at a speed of greater than amount 50 feet per minute. Still further the vibratory conveyor 35 moves the separated grapes 111 at a speed of about 50 feet per minute. As will be recognized from the drawings, the initial movement of the bunches of grape 110 on the top flight 103 of the cleated conveyor belt 100 is in a direction opposite to that which is provided by the vibratory conveyor 35. It is possible, in one form of the invention, that the initial deposit of the individual bunches of grapes 110 may be made at the first end 60 of the first portion 51 of the screen assembly 50 as opposed to what has been depicted, that being that the individual bunches of grapes are first deposited on the top flight 103 of the cleated conveyor belt 100.
Therefore it will be seen that the present invention provides a convenient means by which bunches of grapes may be processed in a manner and methodology not possible heretofore, thereby resulting in the separation of the individual grapes from the associated stem materials, and material other than grapes (MOG), so as to provide a resulting uniform grape product which may then be conveniently processed for wine production and other end uses.
In compliance with the statute, the present invention has been described in language more or less specific as to structural and methodical features. It is to be understood, however, that the invention is not limited to the specific features shown and described, since the means herein disclosed comprise preferred forms of putting the invention into effect. The invention is, therefore, claimed in any of its forms or modifications within the proper scope of the appended claims appropriately interpreted in accordance with the Doctrine of Equivalents.
