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1. 发明授权

US4366768A Power steering direction sensor 失效
标题翻译：动力转向方向传感器
公开(公告)号：US4366768A
公开(公告)日：1983-01-04
申请号：US385735
申请日：1982-06-07
申请人： Walter Kulischenko , Philip E. Bloomfield , Richard A. Ferren
发明人： Walter Kulischenko , Philip E. Bloomfield , Richard A. Ferren
IPC分类号： B62D15/02 , B63H25/24 , G01L5/22 , B63H25/00
CPC分类号： B63H25/24 , B62D15/02 , G01L5/221 , Y10S310/80
摘要： A plastic material, preferably polyvinylidene fluoride (PVDF) film, made highly piezoelectric by known methods, is placed in a sensor unit structure wherein pressure is exerted against the piezoelectric film by means of rotation of the steering wheel of the boat or vehicle to thereby cause the piezoelectric film to generate electric signals which are used in controlling the rpm of a low-inertia, instantaneously reversible steering power assist motor. The rpm of the motor is substantially proportional to the input electric signals, which, in turn, are determined by, and responsive to, the degrees of rotation and speed of rotation of the steering wheel. The direction of rotation of the steering wheel determines the direction of steering assist, i.e., to the left or right. Available torque of the motor however is substantially inversely proportional to rpm of the engine propelling the boat or vehicle.
摘要翻译：通过已知方法制成的高度压电的塑料材料（优选聚偏二氟乙烯（PVDF））被放置在传感器单元结构中，其中通过船或车辆的方向盘的旋转对压电膜施加压力，从而导致该压电膜产生用于控制低惯量，瞬时可逆转向助力电动机的转速的电信号。马达的转速基本上与输入的电信号成比例，输入电信号又由方向盘的转动程度和转速决定，并响应于此。方向盘的旋转方向确定转向辅助的方向，即向左或向右。然而，马达的可用扭矩与推动船或车辆的发动机的转速大致成反比。

2. 发明授权

US4800048A Die drawing process and apparatus for piezoelectric polymer films and tubes 失效
标题翻译：用于压电聚合物膜和管的压模工艺和设备
公开(公告)号：US4800048A
公开(公告)日：1989-01-24
申请号：US126993
申请日：1987-11-30
申请人： Philip E. Bloomfield , Richard A. Ferren , Dean H. Wickwire
发明人： Philip E. Bloomfield , Richard A. Ferren , Dean H. Wickwire
IPC分类号： D02J1/22 , B29C55/30 , B29K27/12 , B29L9/00 , H01L41/45 , B29C47/02
CPC分类号： H01L41/45
摘要： Apparatus and processes for preparing polymeric piezoelectric films of one or more layers or tubular products having a central wire core by drawing a suitable polymeric blank through either a flat or a conically tapered drawing die having associated electrical field producing means, to simultanelusly stretch and pole the polymeric material within the die chamber.
摘要翻译：用于制备具有中心线芯的一个或多个层或管状产品的聚合物压电膜的装置和方法，其通过具有相关联的电场产生装置的平面或锥形拉拔模具拉制合适的聚合物坯料，以同时伸展和极化聚合物材料在模腔内。

3. 发明授权

US4225482A Concentrated aqueous latex of ethylene/C.sub.2 -C.sub.3 -perfluorocarbon copolymer or terpolymer 失效
标题翻译：乙烯/ C2-C3-全氟碳共聚物或三元共聚物的浓缩水性胶乳
公开(公告)号：US4225482A
公开(公告)日：1980-09-30
申请号：US968831
申请日：1978-12-12
申请人： Richard A. Ferren , Daniel A. Dimmig , John C. Grigger
发明人： Richard A. Ferren , Daniel A. Dimmig , John C. Grigger
IPC分类号： C08F6/20 , C08L27/18
CPC分类号： C08F6/20
摘要： A process for preparing an aqueous concentrated latex of a copolymer or terpolymer of ethylene and a C.sub.2 -C.sub.3 -perfluorocarbon by creaming a latex of 25-30% copolymer solids and recovering a concentrated latex having 1.5-2.5 times the concentration of the starting latex. The concentrated latex can be used to prepare crack-free or void-free coatings on substrates.
摘要翻译：一种制备乙烯和C2-C3-全氟化碳的共聚物或三元共聚物的水性浓缩胶乳的方法，其通过乳化25-30％共聚物固体的胶乳并回收具有起始胶乳浓度的1.5-2.5倍的浓缩胶乳。浓缩胶乳可用于在基材上制备无裂纹或无空隙的涂层。

4. 发明授权

US4127681A Single electrode poling of dielectric films 失效
标题翻译：介电薄膜的单极极化
公开(公告)号：US4127681A
公开(公告)日：1978-11-28
申请号：US726382
申请日：1976-09-24
申请人： Richard A. Ferren , Peter F. Radice
发明人： Richard A. Ferren , Peter F. Radice
IPC分类号： H01L41/193 , H01B3/44 , H01G7/02 , H01L41/45 , B05D5/12
CPC分类号： H01L41/45 , H01G7/02 , H01G7/023 , H01L41/193 , H01L41/257 , Y10T29/49226
摘要： A polarized pellicular resin article is prepared by bringing one surface of a pellicle of a polarizable, dielectric resin into intimate contact with a single electroconductive surface and charging said electroconductive surface with an electric potential at least sufficient to polarize said pellicular resin article.
摘要翻译：通过使可极化的电介质树脂的防护薄膜组件的一个表面与单个导电表面紧密接触来制备极化的薄膜树脂制品，并且将所述导电表面充电至少足以使所述薄膜树脂制品极化。

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