Abstract:
A bulk seed handler and dispenser is provided for transporting bulk seed containers and for dispensing the seed within the containers into planting equipment. The bulk seed handler and dispenser is comprised of a trailer having a plurality of bulk seed containers mounted thereon, each of which is in communication with individual hoppers located therebelow. A discharge auger conveyor is in selective communication with each of the hoppers and is adapted to convey the seed from the hoppers through a discharge tube which is maneuvered for placement adjacent planter unit hoppers.

Description:
Your Petitioner, TOM J. BECK, a citizen of the United States and a resident of the State of Nebraska, whose post office address is 2433 “Y” Road, Clarks, Nebr. 68628, prays that Letters Patent may be granted to him for the invention set forth in the following specification: 
   BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   This invention relates to a bulk seed handling and dispensing system and more particularly to a system wherein a plurality of bulk seed containers are selectively removably positioned on a trailer and means for dispensing the seed therefrom into planting units is provided thereon. 
   2. Description of the Related Art 
   Agricultural seeding machines such as a row crop planter or grain drill are used to place seeds at a desired depth within a plurality of parallel seed trenches. Historically, row crops such as corn are planted with row planters which normally consist of a plurality of spaced-apart planter units mounted on a supporting frame such as a tool bar or the like. Usually, each of the planter units includes a seed box or hopper thereon which must be filled with seed. Non-row crops such as wheat, soybeans, oats, barley, etc., are planted by means of grain drills. The grain drills include a seed hopper positioned thereon. In both types of planting, the seed boxes or hoppers thereof must be filled with seed. In many cases, individual bags of seed are hand-carried to the planters with the seed being poured therefrom into the planter boxes or hoppers. In recent years, seed has been supplied to the farmers in bulk form, that is, the seed is contained in large seed containers, sometimes called “totes,” carried on a trailer or the like and is dispensed therefrom to the planter boxes or hoppers by an auger conveyor. 
   It is believed that the prior art bulk seed handling or dispensing systems suffer from one or more drawbacks or disadvantages. First, in certain systems where two or more seed containers or totes are positioned on a trailer, the seed from the two or more seed containers flow into a common hopper from which the seed is dispensed which makes it impossible to have different seed hybrids or varieties in different containers on the trailer. Second, the prior art bulk seed handling systems are not believed to have a convenient means for cleaning out the seed hopper beneath the seed container thereby possibly resulting in contamination of one seed hybrid or variety with another seed hybrid or variety if the system first dispenses one seed hybrid or variety and is then used to dispense another seed hybrid or variety. Third, the prior art bulk seed handling systems are believed to have a high center of gravity due to the fact that the seed containers are positioned substantially above the ground or road surface. Such a high center of gravity may result in the system overturning when traveling around a curve or corner or over rough terrain. Fourth, the prior art bulk seed handling systems are not believed to be convenient to use. 
   SUMMARY OF THE INVENTION 
   A bulk seed handling and dispensing cart, caddy, trailer, apparatus, etc., is described for transporting bulk seed containers and for dispensing the seed from the containers into the seed hoppers or boxes on planting equipment. The apparatus includes a wheeled frame such as a trailer having a forward end, a rearward end, and first and second sides. The wheeled frame has a forwardly extending hitch tongue for connection to a prime mover such as a truck or tractor. A generally horizontally disposed deck is positioned on the wheeled frame which defines a front deck portion and a rear deck portion. The front and rear deck portions are adapted to have front and back bulk seed containers positioned thereon, respectively. The front deck portion has a front seed inlet opening formed therein and the rear deck portion has a rear seed inlet opening formed therein. A front seed hopper is positioned beneath the front seed inlet opening and has an open upper end in communication therewith. The front seed hopper has a selectively closeable seed discharge opening at its lower end. A rear seed hopper is positioned beneath the rear seed inlet opening and has an open upper end in communication therewith. The rear seed hopper has a selectively closeable seed discharge opening at its lower end. A housing is positioned at the lower ends of the front and rear seed hoppers and which is in communication with the discharge openings thereof. A seed discharge auger conveyor is provided on the wheeled frame and has upper and lower ends. An internal combustion engine is provided on the wheeled frame and is adapted to operate the discharge auger conveyor. The lower end of the discharge auger conveyor is in communication with the housing with the discharge auger conveyor extending upwardly and generally laterally from the wheeled frame. A telescopic seed discharge tube has its upper end connected to the upper end of the discharge auger conveyor. The lower end of the seed discharge tube may be maneuvered to each of the seed boxes or hoppers on the planters to fill the same. A remote control is provided at the lower end of the discharge tube to control the operation of the seed discharge auger conveyor by varying the speed of the engine. 
   It is therefore a principal object of the invention to provide an improved bulk seed handling and dispensing system. 
   A further object of the invention is to provide a bulk seed handling and dispensing system wherein at least two bulk seed containers are positioned on a wheeled frame such as a trailer. 
   Yet another object of the invention is to provide a system of the type described wherein seed in each of the seed containers is fed into an individual hopper which is in selective communication with a discharge auger conveyor. 
   Still another object of the invention is to provide a system of the type described which has a low center of gravity. 
   Still another object of the invention is to provide a system of the type described which has an improved clean out mechanism associated therewith. 
   Yet another object of the invention is to provide a system of the type described which is convenient to use. 
   These and other objects will be apparent to those skilled in the art. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is a rear perspective view of the seed handling and dispensing system of this invention; 
       FIG. 2  is a side view of the seed handling and dispensing system of this invention which illustrates the bulk seed containers removed therefrom; 
       FIG. 3  is a perspective view of the deck portion of the apparatus which supports the bulk seed containers thereon; 
       FIG. 4  is a partial sectional view illustrating the bulk seed containers and the relationship thereof with respect to the apparatus of this invention; 
       FIG. 5  is a partial sectional view illustrating the manner in which the slide gates of the hoppers of the apparatus are controlled; 
       FIG. 6  is a perspective view illustrating the operating levers for each of the slide gates; and 
       FIG. 7  is a perspective view of the lower end of the discharge auger conveyor and the clean out mechanism associated therewith. 
   

   DETAILED DESCRIPTION OF THE INVENTION 
   The seed dispensing cart, caddy, trailer, system or apparatus of this invention is generally designated by the reference numeral  10  which is designed for transporting bulk seed containers  12  and  14 , which are identical to each other, and for dispensing the seed within the containers into seed boxes or hoppers of planting equipment such as row crop planters or grain drills. The containers  12  are sometimes referred to as totes and are readily available from one or more manufacturers. The containers are usually constructed of plastic. The containers or totes  12  include a sloped floor  15  so that the seed therein will gravity flow to the discharge opening  16  therein which is selectively closed by a manually operated slide gate  18 . 
   The seed cart, caddy, apparatus, system or trailer will be referred to herein, for purposes of description, as a “trailer.” Trailer  10  includes a wheeled frame  20  supported by wheels  22  at each side thereof. A forwardly extending tongue or hitch  24  is provided on the wheeled frame  20  so that the trailer may be towed by a prime mover such as a truck, pickup, tractor, etc. An internal combustion engine  26  is mounted on the frame  20  for powering the conveyor auger as will be described in more detail hereinafter. It is preferred that an internal combustion engine  26  be utilized but the power source for the conveyor auger could be electrically driven, hydraulically driven or combinations thereof. Further, if the trailer  10  is being pulled by a tractor or the like, the source of power for the conveyor auger could be the tractor power take-off (PTO). 
   For purposes of description, the trailer  10  will be described as having a forward end  28 , rearward end  30 , a left side  32  and a right side  34 . Trailer  10  is provided with a generally horizontally disposed deck  36  which defines a front deck portion  38  and a rear deck portion  40 . The deck portions  38  and  40  are provided with attachment means for securing the containers or totes  12  thereon. Front deck portion  38  is provided with a seed inlet opening  42  which is in communication with the discharge opening  16  of the container  12  which is positioned on front deck portion  38 . Seed inlet opening  44  is provided in deck portion  40  and is in communication with the discharge opening  16  in the container  12  positioned on rear deck portion  40 . 
   Hopper  46  is positioned beneath inlet opening  42  in deck portion  38  and includes a back wall  48 , front wall  50  and opposite side walls. As seen in the drawings, front wall  50  is sloped downwardly and rearwardly so that the seed falling from the container  12  through the inlet opening  42  will gravity move to the lower rearward end of the hopper  46 . The lower rearward end of hopper  46  is provided with a selectively closeable opening  56  which communicates with a housing  58 . Opening  56  is selectively closed by means of a slidable door  60  which is moved upwardly and downwardly with respect to the opening  56  by means of an operating handle  62  pivotally connected thereto and extending upwardly therefrom through the deck  36  at the left side of the trailer so that the operator may selectively open and close the opening  56  to prevent seed from flowing from the hopper  46  into the housing  58 . Hopper  64  is positioned beneath inlet opening  44  and deck portion  40  and is identical to hopper  46  but is the mirror image thereof. For purposes of description, the operating lever for controlling the slide gate at the lower forward end of hopper  64  will be referred to by the reference numeral  66 . 
   The numeral  68  refers to a conveyor screw auger including a lower auger section  70  and an upper auger section  72  which is selectively pivotally secured to the upper end of auger section  70 . Conveyor auger  68  includes a rotatable auger  74 , the lower end of which is positioned within the interior of housing  58 . As stated earlier, the conveyor auger is selectively rotatable by the engine  26  by the belt and pulley assembly  75 . The lower end of auger portion  70  extends below the lower ends of the hoppers  46  and  64  as well as the housing  58  and has a bearing provided therein which rotatably supports the lower end of the auger shaft. A pulley or sprocket  76  is operatively secured to the lower end of the auger shaft  77  so that rotation thereof by the engine  26  causes the auger  68  to rotate. The lower end of the lower section  70  is closed by a plate  78  having a semi-circular opening  79  formed therein which is selectively closed by a pivotal gate  80 . When the gate  80  is in its closed position, the seed in the housing  50  cannot flow downwardly from the housing  50 . When the gate  80  is in its open position, the housing  50  and either of the hoppers  46  or  64  may be “cleaned out.” Thus, the gate  80 , in cooperation with the opening  79 , acts as a clean out mechanism. 
   A telescopic flexible tube  82  extends from the upper end of the conveyor auger  68  so that the operator may position the discharge end of the tube  82  over the planter seed boxes or hoppers to fill the same. A remote control is provided at the discharge end of the tube  82  for controlling the speed of the engine  26 . When the housing  50  is full of seed, the idling engine was not cause the rotation of the auger  68  due to the resistance of the seed on the auger. When the remote control is energized, the engine speed will be increased which will cause the conveyor to overcome the resistance of the grain in the housing  50  so that the seed will be conveyed upwardly through the conveyor  68  and downwardly through the tube  82 . When the planter box or hopper is full, the operator releases the remote control which causes the engine to again idle which in turn causes the conveyor to discontinue its rotation. 
   An extremely important feature of this invention is that each of the containers has its own hopper with each of the hoppers being selectively closed so that only seed from a particular container will be discharged into the planter. For example, the operator or farmer may plant different hybrids or varieties in different fields. The trailer  10  may be pulled to a first field and the seed from one of the containers may be discharged into the housing  50  into the planters. The trailer may then be taken to a different field where a different hybrid or variety is to be planted with the other container then being placed in communication with the housing  50  and the first container being shut off from the housing  50 . Although it is preferred that a pair of the bulk seed containers be accommodated, the trailer may be provided with more than two hoppers and more than two deck portions which support the containers thereon. 
   The apparatus of this invention is a low profile apparatus which makes it very easy to transport the same over highways without fear that the apparatus will tip over as it is being negotiated through a curve or over irregular ground. 
   Thus it can be seen that the invention accomplishes at least all of its stated objectives.