公开(公告)号：US4913707A

公开(公告)日：1990-04-03

申请号：US270006

申请日：1988-12-02

申请人： Pat F. Moreno ,  Robert H. Lewis ,  Robert G. MacIvergan ,  Harold B. King, Jr.

发明人： Pat F. Moreno ,  Robert H. Lewis ,  Robert G. MacIvergan ,  Harold B. King, Jr.

IPC分类号： G21C3/34 ,  G21C3/344

CPC分类号： G21C3/3424 ,  G21C3/344 ,  G21Y2002/202 ,  G21Y2002/205 ,  G21Y2002/302 ,  G21Y2004/30 ,  G21Y2004/401 ,  Y02E30/40 ,  Y10T29/531 ,  Y10T29/53404 ,  Y10T29/53426

摘要： To assemble nuclear fuel bundle spacers comprised of a multiplicity of rod-positioning ferrules, automated apparatus is provided comprising an indexing table mounting a plurality of identical, angularly spaced ferrule fixtures which are successively positioned at a first station for receipt of a pair of properly oriented ferrules. The table is indexed to present the ferrule pairs in turn to a second station where a spring is loaded in pre-assembly relation thereto. At the next table index position, a third station manipulates the successive fixture-mounted ferrule pairs to interlock the spring with each ferrule pair as a subasssembly which is then indexed in turn to a fourth station for assembly into a spacer fixture.

公开(公告)号：US4821500A

公开(公告)日：1989-04-18

申请号：US123050

申请日：1987-11-19

申请人： Robert G. MacIvergan

发明人： Robert G. MacIvergan

IPC分类号： A01D7/00 ,  A01D7/10

CPC分类号： A01D7/00 ,  A01D7/10

摘要： A lawn rake is disclosed which comprises a main body portion supported by wheels. A plurality of broad, closely spaced gathering tines formed from a sheet of spring steel or other resilient material extend downwardly and rearwardly from the main body portion. These tines are forwardly disposed at their lower end to engage the ground to gather pine needles, grass clippings and leaves when the rake is pushed forward, and to pass over such debris when the rake is pulled backward. When the rake is pulled backward, debris previously gathered by the gathering tines is transferred to a second set of tines disposed forwardly of the gathering tines. These pusher tines keep the gathered pine needles, grass clippings, etc., in front of the gathering tines thereby preventing the same from clogging with debris.

摘要翻译： 公开了一种草坪耙，其包括由车轮支撑的主体部分。 由一片弹簧钢或其他弹性材料形成的多个宽而紧密的聚集齿从主体部分向下和向后延伸。 当耙子向前推时，这些叉子向前放置在其下端以接合地面收集松针，草屑和叶子，并且当耙子向后拉时，这些叉子经过这些碎屑。 当耙子向后拉时，由收集齿先前聚集的碎屑被转移到设置在聚集齿前面的第二组尖齿。 这些推杆将聚集的松针，草屑等保持在集束尖之前，从而防止其被碎屑堵塞。

公开(公告)号：USD297815S

公开(公告)日：1988-09-27

申请号：US727798

申请日：1985-04-26

申请人： Robert G. MacIvergan ,  James T. MacIvergan

设计人： Robert G. MacIvergan ,  James T. MacIvergan