公开(公告)号：US5972264A

公开(公告)日：1999-10-26

申请号：US871596

申请日：1997-06-06

申请人： Mohammad Ghassem Malekmadani ,  Charles Biddle ,  Hung Nguyen ,  Reza Sheikhrezai

发明人： Mohammad Ghassem Malekmadani ,  Charles Biddle ,  Hung Nguyen ,  Reza Sheikhrezai

IPC分类号： B04B5/02 ,  B04B7/08 ,  B29C45/00 ,  B29C45/14 ,  B29C70/08 ,  B29C70/48 ,  B28B7/16 ,  B32B31/04

CPC分类号： B04B7/085 ,  B29C70/081 ,  B29C70/48 ,  Y10T442/2025 ,  Y10T442/2074 ,  Y10T442/209 ,  Y10T442/2107 ,  Y10T442/2123 ,  Y10T442/3854 ,  Y10T442/3927

摘要： A method for fabricating fiber-reinforced composite structures, including centrifuge rotors, by resin transfer molding (RTM) is disclosed. The method involves loading reinforcing fibers into a mold and then injecting resin into the mold to coat the fibers to form the composite structure. Two types of reinforcing fibers are used--fabric preforms at the surfaces of the structure and chopped fibers at the interior of the structure. Also disclosed is a fiber-reinforced composite structure comprising a skin layer of reinforcing fabric, chopped fibers distributed throughout the interior of the structure, and epoxy resin that binds the fabric and chopped fibers together into a fiber-reinforced composite structure. The resin transfer molding method is especially useful for fabricating composite centrifuge rotors.

摘要翻译： 公开了一种通过树脂传递模塑（RTM）制造纤维增强复合结构的方法，包括离心转子。 该方法包括将增强纤维加载到模具中，然后将树脂注入模具中以涂覆纤维以形成复合结构。 使用两种类型的增强纤维 - 结构表面处的织物预制件和在结构内部的短切纤维。 还公开了一种纤维增强复合结构，其包括增强织物的表皮层，分布在整个结构内部的短切纤维，以及将织物和短切纤维结合在一起的纤维增强复合结构的环氧树脂。 树脂传递模塑法特别适用于制造复合离心机转子。

公开(公告)号：US06482342B1

公开(公告)日：2002-11-19

申请号：US09401589

申请日：1999-09-22

申请人： Mohammad Ghassem Malekmadani ,  Charles Biddle ,  Hung Nguyen ,  Reza Sheikhrezai

发明人： Mohammad Ghassem Malekmadani ,  Charles Biddle ,  Hung Nguyen ,  Reza Sheikhrezai

IPC分类号： B04B502

CPC分类号： B04B7/085 ,  B29C70/081 ,  B29C70/48 ,  Y10T442/2025 ,  Y10T442/2074 ,  Y10T442/209 ,  Y10T442/2107 ,  Y10T442/2123 ,  Y10T442/3854 ,  Y10T442/3927

摘要： A method for fabricating fiber-reinforced composite structures, including centrifuge rotors, by resin transfer molding (RTM) is disclosed. The method involves loading reinforcing fibers into a mold and then injecting resin into the mold to coat the fibers to form the composite structure. Two types of reinforcing fibers are used—fabric preforms at the surfaces of the structure and chopped fibers at the interior of the structure. Also disclosed is a fiber-reinforced composite structure comprising a skin layer of reinforcing fabric, chopped fibers distributed throughout the interior of the structure, and epoxy resin that binds the fabric and chopped fibers together into a fiber-reinforced composite structure. The resin transfer molding method is especially useful for fabricating composite centrifuge rotors.

摘要翻译： 公开了一种通过树脂传递模塑（RTM）制造纤维增强复合结构的方法，包括离心转子。 该方法包括将增强纤维加载到模具中，然后将树脂注入模具中以涂覆纤维以形成复合结构。 使用两种类型的增强纤维 - 结构表面处的织物预制件和在结构内部的短切纤维。 还公开了一种纤维增强复合结构，其包括增强织物的表皮层，分布在整个结构内部的短切纤维，以及将织物和短切纤维结合在一起的纤维增强复合结构的环氧树脂。 树脂传递模塑法特别适用于制造复合离心机转子。

公开(公告)号：US20060136337A1

公开(公告)日：2006-06-22

申请号：US11019771

申请日：2004-12-20

申请人： Reza Sheikhrezai ,  Rahul Khona ,  Sanjay Nighojkar

发明人： Reza Sheikhrezai ,  Rahul Khona ,  Sanjay Nighojkar

IPC分类号： G06Q40/00

CPC分类号： G06Q20/385 ,  G06Q20/02 ,  G06Q20/12 ,  G06Q20/40 ,  G06Q30/00

摘要： The invention provide a method for verification of receipt of services delivered in person to a buyer in an online service sales transaction prior to release of funds by a service sales system to the seller of a service. An electronic buyer's voucher generated by the service sales system is issued to the buyer upon obtaining funds from the buyer in a financial transaction. The funds are not released to the seller until the service is dispensed to the buyer. The buyer's electronic voucher contains both a transaction identification code which identifies the commercial transaction between the seller and the buyer, and a funds release authorization code. An electronic seller's voucher is also issued by the service sales system to the seller, the seller's electronic voucher containing the transaction identification code. In order to receive services the buyer must provide the seller with the transaction identification code. The buyer also provides the seller with a funds release authorization code, in order for the service sales system to release funds to the seller. The method further provides for a rating code, which is used to rate the quality of service received by the buyer without disclosing that rating to the seller.

摘要翻译： 本发明提供一种用于验证在由服务销售系统向服务卖方发放资金之前在线服务销售交易中亲自交付给买方的服务的接收方法。 由买方在金融交易中获得资金后，由买方发放服务销售系统产生的电子买方凭单。 在将服务发放给买方之前，这些资金不会向卖方发放。 买方的电子凭证包含识别卖方与买方之间的商业交易的交易识别码，以及资金发放授权码。 电子卖家的凭单也由服务销售系统发给卖方，卖方的电子凭单包含交易识别码。 为了接收服务，买方必须向卖方提供交易识别码。 买方还向卖方提供资金发放授权码，以便服务销售系统向卖方发放资金。 该方法进一步提供评级代码，其用于评估买方接收的服务质量，而不向卖方披露该评级。