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公开(公告)号：US5087291A
公开(公告)日：1992-02-11
申请号：US591046
申请日：1990-10-01
申请人： Frederick A. Schmidt , David T. Peterson , John T. Wheelock , Lawrence L. Jones , Lanny P. Lincoln
发明人： Frederick A. Schmidt , David T. Peterson , John T. Wheelock , Lawrence L. Jones , Lanny P. Lincoln
IPC分类号： C22B59/00
CPC分类号： C22B59/00 , Y02P10/214
摘要： Rare earth-transition metal (e.g. iron) scrap (e.g. Nd-Fe-B scrap) is melted to reduce the levels of tramp oxygen and nitrogen impurities therein. The tramp impurities are reduced in the melt by virtue of the reaction of the tramp impurities and the rare earth to form dross on the melt. The purified melt is separated from the dross for reuse. The oxygen and nitrogen of the melt are reduced to levels acceptable for reuse of the treated alloy in the manufacture of end-use articles, such as permanent magnets.
摘要翻译： 稀土过渡金属（例如铁）废料（例如Nd-Fe-B废料）被熔化以降低其中的氧气和氮杂质的水平。 借助于杂质杂质和稀土的反应，熔融物中的杂质杂质在熔体中形成浮渣。 将纯化的熔体与浮渣分离以供再利用。 将熔体中的氧气和氮气降低到可用于在最终用途制品（例如永磁体）的制造中重新使用经处理的合金的水平。
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公开(公告)号：US5174811A
公开(公告)日：1992-12-29
申请号：US591040
申请日：1990-10-01
CPC分类号： C22B59/00 , C22B9/18 , Y02P10/214
摘要： Rare earth-transition metal (e.g., iron) scrap (e.g., Nd-Fe-B scrap) is flux (slag) remelted to reduce tramp non-metallic impurities, such as oxygen and nitrogen, and metallic impurities, such as Li, Na, Al, etc., picked up by the scrap from previous fabrication operations. The tramp impurities are reduced to concentrations acceptable for reuse of the treated alloy in the manufacture of end-use articles, such as permanent magnets. The scrap is electroslag or inductoslag melted using a prefused, rare earth fluoride-bearing flux of CaF.sub.2, CaCl.sub.2 or mixtures thereof or the slag resulting from practice of the thermite reduction process to make a rare earth-iron alloy.
摘要翻译： 稀土过渡金属（例如铁）废料（例如，Nd-Fe-B废料）是重熔的助熔剂（渣），以减少诸如氧和氮的杂质非金属杂质，以及金属杂质如Li，Na ，铝等，由先前的制造操作的废料拾起。 将杂质杂质还原成可用于在最终用途制品（例如永磁体）的制造中重新使用经处理的合金的浓度。 废料是使用预制的含稀土氟化物的CaF 2，CaCl 2或其混合物的熔渣或由实施铝酸盐还原工艺产生的制成稀土 - 铁合金的炉渣熔化的电渣或电渣。
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公开(公告)号：US5073337A
公开(公告)日：1991-12-17
申请号：US554189
申请日：1990-07-17
CPC分类号： C01G49/009 , C01F17/0062 , C01P2002/72
摘要： A particulate mixture of Fe.sub.2 O.sub.3 and RE.sub.2 O.sub.3, where RE is a rare earth element, is reacted with an excess of HF acid to form an insoluble fluoride compound (salt) comprising REF.sub.3 and FeF.sub.3 present in solid solution in the REF.sub.3 crystal lattice. The REF.sub.3 /FeF.sub.3 compound is dried to render it usable as a reactant in the thermite reduction process as well as other processes which require an REF.sub.3 /FeF.sub.3 mixture. The dried REF.sub.3 /FeF.sub.3 compound comprises about 5 weight % to about 40 weight % of FeF.sub.3 and the balance REF.sub.3 to this end.
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公开(公告)号：US4612047A
公开(公告)日：1986-09-16
申请号：US791972
申请日：1985-10-28
IPC分类号： C22C33/00
CPC分类号： C22C33/00 , Y10S75/959
摘要： An improved method for the preparation of high-purity rare earth-iron alloys by the aluminothermic reduction of a mixture of rare earth and iron fluorides.
摘要翻译： 通过稀土和氟化铁混合物的铝热还原制备高纯度稀土 - 铁合金的改进方法。
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5.发明授权Method and apparatus for free-standing water removal from roof and siphon head therefor 失效用于从屋顶和虹吸头自由排水的方法和装置
公开(公告)号：US5179969A
公开(公告)日：1993-01-19
申请号：US653683
申请日：1991-02-11
申请人： David T. Peterson
发明人： David T. Peterson
CPC分类号： E04D13/0404 , F04F5/46 , F04F5/54 , Y10T137/0318 , Y10T137/272 , Y10T137/2842 , Y10T137/8359
摘要： A roof draining system including a series of portable siphon heads which can be placed anywhere on a flat roof where there is a ponding area that no longer can be drained by any pre-existing water drainage system, a series of upstanding pipes, and a second series of roof top pipes each connected at one end to one of the siphon heads and each connected at an opposite end to one of the upstanding pipes. A control valve structure is connected to the upstanding pipes. The control valve structure has a series of solenoid operated valves each connected to one of the upstanding pipes at one end. Manual discharge valves are each connected at an opposite end of one of the pipe tees. An electrical timer is operatively connected to each of the solenoid operated valves. Siphon pumps are each positioned in line with and operatively connected between one of the solenoid operated valves. The timer is cooperable with solenoid operated valves at timed intervals to cause the solenoid operated valves to open thus permitting city water to pass through the solenoid operated valves and the associated siphon pump, the siphon pumps each having a Venturi jet passageway therein which functions to generate a pressure differential causing roof water to be siphoned from the ponding areas on the roof into the associated upstanding pipe.
摘要翻译： 一种屋顶排水系统，包括一系列便携式虹吸头，可以放置在平屋顶上的任何地方，在那里有一个不再能被任何预先存在的排水系统排出的池塘区域，一系列直立的管道，以及第二个 一系列顶顶管道，其一端连接到虹吸头之一，并且每个连接在与一个直立管道相对的端部。 控制阀结构连接到立管上。 控制阀结构具有一系列电磁操作阀，每个阀都连接到一端的直立管之一。 手动排气阀各自连接在一个管道三通的另一端。 电定时器可操作地连接到每个电磁阀。 虹吸泵每个定位成与电磁阀之间的一个并且可操作地连接在一个电磁阀之间。 定时器与电磁阀一起以定时间隔配合，以使电磁阀打开，从而允许城市用水通过电磁阀和相关联的虹吸泵，每个虹吸泵都有一个文丘里喷气通道，其功能是产生 压力差导致屋顶水从屋顶上的池塘区域虹吸到相关的直立管道中。
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公开(公告)号：US06524803B2
公开(公告)日：2003-02-25
申请号：US09741982
申请日：2000-12-19
IPC分类号： G01N3353
CPC分类号： H01J49/0036
摘要： A mass spectrometer system analyzes a sample with the aid an associated computer system or processor which utilizes a relatively small compound deconvolution data library. The deconvolution library has a specific predefined order. The specific order of the compounds in the library is established based on predetermined knowledge of the sample being tested by the mass spectrometer. A deconvolution technique utilized by the computer system automates a deconvolution technique that would be utilized by an experienced process chemist for a similar sample and associated fragmentation or cracking pattern. The deconvolution technique steps through the deconvolution library's order of compounds and compares each compound's stored spectral data with the sample's spectrum. If it is determined that a compound's spectrum is found in the sample's spectrum, then at least one complete peak associated with the found compound's spectrum is removed from the sample's spectrum.
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7.发明授权Method and apparatus for free-standing water removal from roof and siphon head therefore 失效因此，从屋顶和虹吸头自由排水的方法和设备
公开(公告)号：US5063959A
公开(公告)日：1991-11-12
申请号：US553525
申请日：1990-07-17
申请人： David T. Peterson
发明人： David T. Peterson
CPC分类号： F04F5/46 , E04D13/0404 , F04F5/54 , Y10T137/2829 , Y10T137/2842 , Y10T137/2924
摘要： A siphon head for siphoning smooth or rough textured roof surfaces which is preferably comprised of a soft pliable elastomeric material such as rubber. The head includes a relatively flat foot flange adapted to rest flatwise on a roof to be drained. The flange is of an annular shape. A dome shaped head portion is centrally located and integrally formed with the relatively flat foot flange. The relatively flat foot flange extends outwardly in a relatively flat plane beyond the head portion and surrounds the head portion in all directions. The head portion is closed on its top side and has an interior cavity. An opening is located on an underside of the head portion in communication with the cavity for receiving fluids to be siphoned. A discharge nozzle is positioned in fluid receiving communication with the interior cavity and extends radially away from the head portion atop the foot flange. The discharge nozzle is integrally formed with the head portion and the foot flange and is in supported assembly therewith. The siphon head is used in combination with a roof draining system for flat roofs.
摘要翻译： 虹吸头用于虹吸光滑或粗糙纹理的屋顶表面，其优选地由软柔韧的弹性体材料例如橡胶构成。 头部包括相对扁平的脚部凸缘，其适于平坦地搁置在要排出的屋顶上。 凸缘为环形。 圆顶形头部位于中心并与相对平坦的脚法兰一体形成。 相对扁平的脚法兰在相对平坦的平面内向外延伸超过头部部分并且在所有方向上围绕头部部分。 头部在其顶侧封闭，并具有内腔。 开口位于与空腔连通的头部的下侧，用于接收要虹吸的流体。 放电喷嘴定位成与内部空腔流体接收连通并且在脚部凸缘的顶部径向远离头部部分延伸。 排放喷嘴与头部和脚部凸缘一体地形成，并且与其一起被支撑组件。 虹吸头与屋顶排水系统结合使用。
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公开(公告)号：US06623935B2
公开(公告)日：2003-09-23
申请号：US10304304
申请日：2002-11-26
IPC分类号： G01N3353
CPC分类号： H01J49/0036
摘要： A mass spectrometer system analyzes a sample with the aid an associated computer system or processor which utilizes a relatively small compound deconvolution data library. The deconvolution library has a specific predefined order. The specific order of the compounds in the library is established based on predetermined knowledge of the sample being tested by the mass spectrometer. A deconvolution technique utilized by the computer system automates a deconvolution technique that would be utilized by an experienced process chemist for a similar sample and associated fragmentation or cracking pattern. The deconvolution technique steps through the deconvolution library's order of compounds and compares each compound's stored spectral data with the sample's spectrum. If it is determined that a compound's spectrum is found in the sample's spectrum, then at least one complete peak associated with the found compound's spectrum is removed from the sample's spectrum.
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9.发明授权Method and apparatus for free-standing water removal from roof and siphon head therefore 失效因此，从屋顶和虹吸头自由排水的方法和设备
公开(公告)号：US5394657A
公开(公告)日：1995-03-07
申请号：US962
申请日：1993-01-06
申请人： David T. Peterson
发明人： David T. Peterson
CPC分类号： F04F5/46 , E04D13/0404 , F04F5/54 , Y10T137/2829 , Y10T137/2842 , Y10T137/2924
摘要： My invention relates to an improvement of a siphon head for use on a flat roof for a building having a recessed drain. The drain includes an inverted cup-shaped drain member with peripherally spaced elongated drain slots. The siphon head is comprised of a soft pliable elastomeric material including a relatively flat foot flange adapted to rest flatwise on a roof to be drained, and a dome shaped head portion centrally located and integrally formed with the relatively flat foot flange. The relatively flat foot flange extends outwardly in a relatively flat plane beyond the head portion and surrounding the head portion in all directions. The head portion is open on its top side providing an annular edge for nested engagement with the drain with a portion of the elongated slots lying below the edge, and other portions of the elongated slots lying above the edge. The edge is in snug nested engagement with the drain while the relatively foot flange is supported on the flat roof.
摘要翻译： 本发明涉及一种用于具有凹陷排水管的建筑物的平屋顶上的虹吸头的改进。 漏斗包括具有周向间隔开的细长排水槽的倒置杯形排出构件。 虹吸头由柔软柔韧的弹性体材料构成，该材料包括适于平坦地搁置在要排出的屋顶上的相对平坦的脚部凸缘，以及位于中心定位并与相对平坦的脚法兰一体形成的圆顶形头部。 相对平坦的脚法兰在相对平坦的平面内向外延伸超过头部部分并且在所有方向上包围头部部分。 头部在其顶侧开口，提供用于与排水口嵌套接合的环形边缘，其中一部分细长槽位于边缘下方，并且细长槽的其它部分位于边缘上方。 边缘与排水管贴合接合，而相对的脚法兰支撑在平屋顶上。
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