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51. 发明申请

US20020062771A1 Vacuum seed planter for test plots and method of use 失效
标题翻译：真空播种机用于试验地块和使用方法
公开(公告)号：US20020062771A1
公开(公告)日：2002-05-30
申请号：US09998253
申请日：2001-11-30
发明人： Stacy L. Unruh , Jack D. Hefling , Edward A. Spexarth
IPC分类号： A01C007/00 , A01C009/00 , B65H003/08 , B23Q007/04 , G07F011/10 , B65G059/04 , B65H003/00 , G07F011/16 , B65G059/00 , G07F011/24
CPC分类号： A01C7/046
摘要： A vacuum seed planter uses a single seed plate for planting multiple plots of seeds. The seed plate rotates through a seed chamber and uses vacuum pressure to pick up seeds to be planted, the seed chamber having an inlet passage for receiving seeds. A singulator dislodges excess seeds from the seed plate, and the excess seeds fall into an excess-seed compartment adjacent the seed chamber, the compartment having an outlet passage for evacuation of the excess seeds. A valve is movable between an operating position, in which the inlet passage communicates with a supply of seed and the outlet passage communicates with a vacuum source for evacuating excess seeds, and an evacuation position, in which the vacuum source is in communication with the inlet passage for evacuating the seeds in the seed chamber. Vacuum pressure on the seed plate can be maintained during evacuation of the seed chamber and excess-seed compartment.
摘要翻译：真空种子播种机使用单个种子板种植多个种子。种子板旋转通过种子室，并使用真空压力来拾取要种植的种子，种子室具有用于接收种子的入口通道。分选机从种子板上除去多余的种子，并且多余的种子落入邻近种子室的过剩种子隔室中，隔室具有排出多余种子的出口通道。阀可以在操作位置之间移动，在该操作位置，入口通道与种子供应源连通，出口通道与真空源连通以排出多余的种子，以及抽真空位置，真空源与入口连通在种子室中排出种子的通道。在种子室和过剩种子隔室抽真空期间，可以保持种子板上的真空压力。

52. 发明申请

US20020050238A1 Seed planter apparatus and method 有权
公开(公告)号：US20020050238A1
公开(公告)日：2002-05-02
申请号：US10025719
申请日：2001-12-17
申请人： Case Corporation
发明人： Richard J. Crabb , Guntis Ozers , David N. Slowinski , Chad M. Johnson , Donald Johnson , Lisle J. Dunham , John F. Stufflebeam , Thomas A. Olson , Stephen D. Berry , Thomas Brown , Gerald J. Tiedt
IPC分类号： A01C007/00
CPC分类号： A01C7/042 , A01C7/046 , A01C7/102 , Y10S111/90
摘要： A planter apparatus includes a seed meter including a housing assembly with a cover releasably connected to a shell. The housing assembly includes at least one opening formed therein adjacent a seed discharge area to promote the release of seeds from a disc rotatably attached to the housing assembly. The disc divides an interior of the housing assembly to include a vacuum chamber and a seed chamber. The disc including a plurality of openings formed adjacent a periphery of the disc. The planter apparatus may also include a singulator assembly having rotatably spools, a rotatable chute door, a disc having clusters of openings for simultaneous release, and a one-piece baffle.

53. 发明申请

US20020043200A1 Seed planter 失效
公开(公告)号：US20020043200A1
公开(公告)日：2002-04-18
申请号：US09847760
申请日：2001-05-02
发明人： Lyn A. Rosenboom
IPC分类号： A01C007/00
CPC分类号： A01C7/20 , A01C5/064 , A01C7/046
摘要： A seed planter is pulled behind a tractor and deposits seeds into an underlying trench in soil. The seed planter contains (a) a seed hopper for holding a quantity of seeds; (b) a seed meter for metering the flow of seeds to be planted which drops seed into a seed conveyor; (c) a trench former for forming an underlying trench in the soil; (d) a seed conveyor comprising a pair of rotating seed placement discs located behind the trench forming discs for conveying seeds from the seed meter into the trench at regular intervals, the seed placement discs having resilient annular rings attached to the perimeter of their inner facing sides, the rings being compressed together during a portion of their rotation below the seed meter and being spaced apart at a later portion of their rotation, such that a seed dropping from the seed meter is secured between the compressed rings and is then released to drop into the underlying trench as the rings separate; and (e) a trench closer located behind the seed placement discs for closing the trench and compacting the soil over the planted seeds.

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