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公开(公告)号:US3978185A
公开(公告)日:1976-08-31
申请号:US468114
申请日:1974-05-08
Applicant: Robert R. Buntin , James P. Keller , John W. Harding
Inventor: Robert R. Buntin , James P. Keller , John W. Harding
IPC: B29C48/345 , D01D5/098 , D04H3/16 , B29C17/06
CPC classification number: D01D5/0985 , B29C47/30 , D04H3/16 , B29C47/0014 , Y10S264/75
Abstract: Melt blown non-woven mats prepared from thermoplastic polymer fibers and substantially completely free of polymer shot are produced at high polymer throughput rates in an improved melt blowing process in which thermoplastic polymer resins, preferably polypropylene, having initial intrinsic viscosities of at least 1.4, are degraded, optionally in the presence of a free radical source compound, to have both reduced intrinsic viscosities and an apparent viscosity in the melt-blowing nozzle orifices of from about 50 to about 300 poise.
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公开(公告)号:US4048364A
公开(公告)日:1977-09-13
申请号:US651328
申请日:1976-01-21
Applicant: John W. Harding , James P. Keller
Inventor: John W. Harding , James P. Keller
CPC classification number: D04H3/16 , Y10S264/75 , Y10S428/903 , Y10S428/91 , Y10T428/24124 , Y10T428/24826 , Y10T442/68
Abstract: A novel nonwoven article useful as a scrim support for other materials, such as paper toweling and wiping cloths, or as porous, nonadsorbent coverings for adsorbent packaging such as bandages or sanitary napkins, or a ribbon for packaging and decorative applications, is produced by post drawing certain melt-blown thermoplastic mats under defined conditions of draw ratios and temperatures. A moderate strength yarn or twine can be produced by twisting the post-drawn, melt-blown thermoplastic web.
Abstract translation: 用作其它材料(例如纸巾和擦拭布)的稀松布支撑物的新型非织造制品,或用作吸收剂包装如多孔,非吸附性包覆材料如绷带或卫生巾,或用于包装和装饰用途的带材,是通过邮寄 在规定的拉伸比和温度条件下拉制某些熔喷热塑性垫。 可以通过扭转后拉伸的熔喷热塑性纤维网来生产中等强度的纱线或麻线。
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公开(公告)号:US07992623B2
公开(公告)日:2011-08-09
申请号:US11621862
申请日:2007-01-10
Applicant: James P. Keller
Inventor: James P. Keller
Abstract: A wall covering system for radiant heating includes a first wall covering portion and a second wall covering portion. The first portion is releasably connectable to the second portion in a direction substantially perpendicular to an outer surface of the first portion. The first portion includes a bottom side and top channel portion downwardly depending from the bottom side. The second portion includes a top side and a bottom channel portion extending upwardly from the top side. The top channel portion and the bottom channel portion bound a channel for receiving a heating conduit. The channel extends longitudinally relative to the first portion and the second portion.
Abstract translation: 用于辐射加热的墙壁覆盖系统包括第一壁覆盖部分和第二壁覆盖部分。 第一部分可在基本上垂直于第一部分的外表面的方向上可释放地连接到第二部分。 第一部分包括从底侧向下悬垂的底侧和顶部通道部分。 第二部分包括从顶侧向上延伸的顶侧和底通道部分。 顶部通道部分和底部通道部分限定了用于接收加热导管的通道。 通道相对于第一部分和第二部分纵向延伸。
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公开(公告)号:US6124758A
公开(公告)日:2000-09-26
申请号:US136637
申请日:1998-08-19
Applicant: Theodore H. Korte , Jeffrey M. Malec , Zhiqun Hu , Carlos Abascal , James P. Keller
Inventor: Theodore H. Korte , Jeffrey M. Malec , Zhiqun Hu , Carlos Abascal , James P. Keller
CPC classification number: H03G3/3042
Abstract: An RF power amplifier control system is presented herein. The system includes a group of power amplifier modules for amplifying an RF signal. Each group includes first and second group controllers for, when on, controlling the operation of the power amplifier modules including turning on and turning off each of the modules within the group. The first group controller is normally on for controlling the amplifier operation and the second group controller is turned on for controlling the operation only when the first controller is turned off. First and second central controllers are provided for, when on, controlling the operation of the first and second group controllers. The first central controller is normally on to provide the control operation and the second central controller monitors the operation of the first controller and performs the control operation in the event that the first central controller malfunctions.
Abstract translation: 本文提出了RF功率放大器控制系统。 该系统包括用于放大RF信号的一组功率放大器模块。 每个组包括第一和第二组控制器,用于当开启时控制功率放大器模块的操作,包括打开和关闭组内的每个模块。 第一组控制器通常用于控制放大器操作,并且仅当第一控制器关闭时,第二组控制器被接通以控制操作。 提供第一和第二中央控制器,用于控制第一和第二组控制器的操作。 第一中央控制器通常是提供控制操作,第二中央控制器监视第一控制器的操作,并且在第一中央控制器发生故障的情况下执行控制操作。
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公开(公告)号:US4487153A
公开(公告)日:1984-12-11
申请号:US429237
申请日:1982-09-30
Applicant: Terrence S. McMahon , James P. Keller
Inventor: Terrence S. McMahon , James P. Keller
CPC classification number: B65H75/364 , B63C11/36
Abstract: A cage to retain an undersea vehicle therein and tether reel-in and play-out mechanism is provided. The cage includes a latch for retaining the vehicle in a "garage" portion. A tether drive assembly reels in and out the tether line through a bale which cooperates with a narrow, annular drum to retain the tether line in an annular, cylindrical coil having a width of a single strand of line. The bail, with or without cooperation from additional means, winds and unwinds the tether in the drum.
Abstract translation: 提供了一种将海底车辆保持在其中的笼子和系绳卷入和放出机构。 保持架包括用于将车辆保持在“车库”部分中的闩锁。 系绳驱动组件通过与窄的环形鼓配合的捆捆将绳系进入和退出,以将系绳线保持在具有单条线宽度的环形圆柱形线圈中。 保释,无论是否与其他方式合作,都可以将滚筒上的系绳卷起并放松。
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