公开(公告)号：US5148005A

公开(公告)日：1992-09-15

申请号：US455715

申请日：1989-12-22

Applicant: Shou-Mean Fang ,  David A. Horsma ,  Guillaume Peronnet ,  Timothy E. Fahey ,  Andrew N. Au ,  William D. Carlomagno

Inventor： Shou-Mean Fang ,  David A. Horsma ,  Guillaume Peronnet ,  Timothy E. Fahey ,  Andrew N. Au ,  William D. Carlomagno

IPC: H01C7/02 ,  H01C7/13 ,  H05B3/14 ,  H05B3/34

CPC classification number: H05B3/34 ,  H01C7/027 ,  H01C7/13 ,  H05B3/146 ,  H05B2203/01 ,  H05B2203/013 ,  H05B2203/017 ,  H05B2203/02

Abstract: Circuit protection devices which comprise a PTC conductive polymer element and a second electrical component which is thermally coupled to the PTC element and which, when a fault causes the current in the circuit to become excessive, generates heat which is transferred to the PTC element, thus reducing the time taken to "trip" the PTC element. The second component is for example a voltage-dependent resistor which is connected in series with the PTC element under the fault conditions and is thus protected from damage. Alternatively, the second component is a thick film resistor which is connected in series with the PTC element.

Abstract translation: 电路保护装置包括PTC导电聚合物元件和与PTC元件热耦合的第二电气元件，并且当故障导致电路中的电流变得过大时，产生传递到PTC元件的热量，因此 减少PTC元件“跳闸”所需的时间。 第二组件例如是在故障条件下与PTC元件串联连接的电压相关电阻器，因此可以防止损坏。 或者，第二部件是与PTC元件串联连接的厚膜电阻器。

公开(公告)号：US4421582A

公开(公告)日：1983-12-20

申请号：US818711

申请日：1977-07-25

Applicant: David A. Horsma ,  Stephen H. Diaz

Inventor： David A. Horsma ,  Stephen H. Diaz

IPC: B29C65/00 ,  B29C65/34 ,  H01C1/146 ,  H01C7/02 ,  H05B3/06 ,  H05B3/14 ,  H05B3/12 ,  B29C27/00 ,  H05B3/38

CPC classification number: B29C65/342 ,  B29C65/344 ,  B29C66/73715 ,  B29C66/91411 ,  B29C66/91651 ,  B29C66/91921 ,  B29C66/91931 ,  H01C1/146 ,  H01C7/027 ,  H05B3/06 ,  H05B3/146 ,  B29C65/3468 ,  B29C65/3476 ,  B29C65/3488 ,  B29C65/3492 ,  B29C66/91655 ,  B29K2995/0005 ,  B29K2995/0049 ,  Y10S174/08 ,  Y10S428/913 ,  Y10T428/1328 ,  Y10T428/1331 ,  Y10T428/24314 ,  Y10T428/24942 ,  Y10T428/249922

Abstract: Articles which are heat-recoverable, or which can be rendered heat-recoverable or which have been heat-recovered, comprise a member composed of a conductive polymer and, attached to said member, at least two electrodes, at least one of which is an electrode comprising a plurality of pliable conductive elements, e.g., a braided tube. By connecting the electrodes to a source of electrical power, current is caused to pass through and heat the conductive polymer member. The heat generated can be used to provide all or part of the heat necessary to cause recovery of the heat-recoverable article. The conductive polymer preferably exhibits PTC behavior, thereby regulating the maximum temperature to which the article can be heated.

Abstract translation: 可热回收或可回收热量或已经回收热量的制品包括由导电聚合物构成的构件，并附着到所述构件上的至少两个电极，其中至少一个电极是 电极，其包括多个柔韧的导电元件，例如编织管。 通过将电极连接到电源上，使电流通过并加热导电聚合物构件。 所产生的热量可用于提供引起可回收物品回收所需的全部或部分热量。 导电聚合物优选表现出PTC行为，从而调节制品可加热的最高温度。

公开(公告)号：US5430815A

公开(公告)日：1995-07-04

申请号：US14040

申请日：1993-02-05

Applicant: Nelson M. Shen ,  David A. Horsma ,  Marc F. Moisson ,  Narendra Kulkarni

Inventor： Nelson M. Shen ,  David A. Horsma ,  Marc F. Moisson ,  Narendra Kulkarni

IPC: G01M3/04 ,  G01M3/38 ,  G01N19/10 ,  G02B6/00 ,  G01N5/02 ,  H01J5/16

CPC classification number: G01M3/047 ,  G01N19/10

Abstract: An optical fiber water sensor includes a mandrel having a convex or concave shape adjacent to an optical fiber which is adjacent to a water swellable material held in a reservoir. Upon coming in contact with water, the material swells and deforms a section of the optical fiber about a contour defined by the mandrel thus attenuating a signal propagating through the fiber which is detected by an optical detector to indicate the presence of water.

Abstract translation: 光纤水分传感器包括具有邻近光纤的凸形或凹形形状的心轴，该光纤与容纳在容器中的水可溶胀材料相邻。 当与水接触时，材料围绕由心轴限定的轮廓使一部分光纤膨胀并变形，从而衰减通过光学检测器检测到的光纤传播的信号，以指示水的存在。

公开(公告)号：US4654511A

公开(公告)日：1987-03-31

申请号：US775543

申请日：1985-09-12

Applicant: David A. Horsma ,  Bernard J. Lyons ,  Robert Smith-Johannsen

Inventor： David A. Horsma ,  Bernard J. Lyons ,  Robert Smith-Johannsen

IPC: B29C65/00 ,  B29C65/34 ,  H01C1/14 ,  H01C7/02 ,  H05B3/06 ,  H05B3/14 ,  H05B3/10

CPC classification number: H05B3/146 ,  H01C1/1406 ,  H01C7/027 ,  H05B3/06

Abstract: A self-regulating heating article comprising a layer of material exhibiting a positive temperature coefficient of resistance (PTC) and said PTC layer having at least partially contiguous therewith at least one layer of constant wattage output material. The article operates such that when connected to an electric power source, the current flows through at least a portion of the thickness of the PTC layer and of the constant wattage layer.

Abstract translation: 一种自调节加热制品，其包括呈现正温度系数电阻（PTC）的材料层，并且所述PTC层至少部分地与至少一层恒定功率输出材料邻接。 该物件工作时，当连接到电源时，电流流过PTC层和恒功率层的厚度的至少一部分。

公开(公告)号：US4177376A

公开(公告)日：1979-12-04

申请号：US601638

申请日：1975-08-04

Applicant: David A. Horsma ,  Bernard J. Lyons ,  Robert Smith-Johannsen

Inventor： David A. Horsma ,  Bernard J. Lyons ,  Robert Smith-Johannsen

IPC: B29C65/00 ,  B29C65/34 ,  H01C1/14 ,  H01C7/02 ,  H05B3/06 ,  H05B3/14 ,  H05B3/12 ,  H05B3/38

CPC classification number: H05B3/146 ,  H01C1/1406 ,  H01C7/027 ,  H05B3/06 ,  Y10S174/08

Abstract: A self-regulating heating article comprising a layer of material exhibiting a positive temperature coefficient of resistance (PTC) and said PTC layer having at least partially contiguous therewith at least one layer of constant wattage output material. The article operates such that when connected to an electric power source, the current flows through at least a portion of the thickness of the PTC layer and of the constant wattage layer. In a preferred embodiment, upon heating the article, a change in dimensions as well as activation of an adhesive occurs.

公开(公告)号：US5089688A

公开(公告)日：1992-02-18

申请号：US456030

申请日：1989-12-22

Applicant: Shou-Mean Fang ,  David A. Horsma ,  Guillaume Peronnet ,  Timothy E. Fahey ,  Andrew N. Au ,  William D. Carlomagno

Inventor： Shou-Mean Fang ,  David A. Horsma ,  Guillaume Peronnet ,  Timothy E. Fahey ,  Andrew N. Au ,  William D. Carlomagno

IPC: H01C7/02 ,  H01C7/13 ,  H05B3/14 ,  H05B3/34

CPC classification number: H05B3/146 ,  H01C7/027 ,  H01C7/13 ,  H05B3/34 ,  H05B2203/01 ,  H05B2203/013 ,  H05B2203/017 ,  H05B2203/02

Abstract: Circuit protection devices which comprise a PTC conductive polymer element and a second electrical component which is thermally coupled to the PTC element and which, when a fault causes the current in the circuit to become excessive, generates heat which is transferred to the PTC element, thus reducing the time taken to "trip" PTC element. The second component is for example a voltage-dependent resistor which is connected in series with the PTC element under the fault conditions and is thus protected from damage. Alternatively, the second component is a thick film resistor which is connected in series with the PTC element.

Abstract translation: 电路保护装置包括PTC导电聚合物元件和与PTC元件热耦合的第二电气元件，并且当故障导致电路中的电流变得过大时，产生传递到PTC元件的热量，因此 减少“跳闸”PTC元件所需的时间。 第二组件例如是在故障条件下与PTC元件串联连接的电压相关电阻器，因此可以防止损坏。 或者，第二部件是与PTC元件串联连接的厚膜电阻器。

公开(公告)号：US5064997A

公开(公告)日：1991-11-12

申请号：US456015

申请日：1989-12-22

Applicant: Shou-Mean Fang ,  David A. Horsma ,  Guillaume Peronnet ,  Timothy E. Fahey ,  Andrew N.S. Au ,  William D. Carlomagno

Inventor： Shou-Mean Fang ,  David A. Horsma ,  Guillaume Peronnet ,  Timothy E. Fahey ,  Andrew N.S. Au ,  William D. Carlomagno

IPC: H01C7/02 ,  H01C7/13 ,  H05B3/14 ,  H05B3/34

CPC classification number: H01C7/027 ,  H01C7/13 ,  H05B3/146 ,  H05B3/34 ,  H05B2203/01 ,  H05B2203/013 ,  H05B2203/017 ,  H05B2203/02

Abstract: Circuit protection devices which comprise a PTC conductive polymer element and a second electrical component which is thermally coupled to the PTC element and which, when a fault causes the current in the circuit to become excessive, generates heat which is transferred to the PTC element, thus reducing the time taken to "trip" the PTC element. The second component is for example a voltate-dependent resistor which is connected in series with the PTC element under the fault conditions and is thus protected from damage. Alternatively, the second component is a thick film resistor which is connected in series with the PTC element.

Abstract translation: 电路保护装置包括PTC导电聚合物元件和与PTC元件热耦合的第二电气元件，并且当故障导致电路中的电流变得过大时，产生传递到PTC元件的热量，因此 减少PTC元件“跳闸”所需的时间。 第二组件例如是电压依赖电阻器，其在故障条件下与PTC元件串联连接，从而防止损坏。 或者，第二部件是与PTC元件串联连接的厚膜电阻器。

公开(公告)号：US4560498A

公开(公告)日：1985-12-24

申请号：US84352

申请日：1979-10-12

Applicant: David A. Horsma ,  Teddy J. Hammack

Inventor： David A. Horsma ,  Teddy J. Hammack

IPC: C08L101/00 ,  H01B1/24 ,  H01B3/00 ,  H01C7/02 ,  H01B1/06

CPC classification number: H01C7/027 ,  C08L101/00 ,  H01B1/24 ,  H01B3/004

Abstract: Disclosed is a positive temperature coefficient of resistance (PTC) crosslinked polymeric composition comprising a first polymeric material exhibiting high green strength prior to crosslinking and elastomeric behavior subsequent to cross-linking, and a second polymeric material comprising a thermoplastic, both said materials having dispersed therein conductive particles, e.g., carbon black, and further, said composition exhibiting a rise in resistance with increased temperature at temperatures above the melting point of either material.

Abstract translation: 公开了一种正电温度系数（PTC）交联聚合物组合物，其包含在交联之前具有高生坯强度的第一聚合物材料和交联后的弹性体行为，以及包含热塑性材料的第二聚合物材料，所述两种所述材料分散在其中 导电颗粒，例如炭黑，此外，所述组合物在高于任一材料的熔点的温度下，随温度升高而呈现电阻上升。

公开(公告)号：US4419156A

公开(公告)日：1983-12-06

申请号：US903961

申请日：1978-05-08

Applicant: Stephen H. Diaz ,  David A. Horsma

Inventor： Stephen H. Diaz ,  David A. Horsma

IPC: B29C61/06 ,  H02G15/00 ,  H02G15/076 ,  H02G15/10 ,  H02G15/18 ,  B60B9/10

CPC classification number: H02G15/10 ,  B29C61/0625 ,  H02G15/003 ,  H02G15/076 ,  H02G15/1813 ,  B29K2995/0005

Abstract: A method of encapsulating a substrate, especially a splice in a telephone cable, comprises (1) preparing an assembly comprising the substrate; an enclosure, preferably a heat-shrinkable enclosure, around the substrate; sealing material within the enclosure; and a heater within the enclosure; and (2) using said heater to change the viscosity of the sealing material. Preferably the heater is a PTC heater, especially one which is attached to thermoplastic sealing material in the form of a sheet or tape. In this way a desired distribution of heat through the assembly can be obtained so that extended heating times can be used.

Abstract translation: 将基板，特别是拼接在电话电缆中的封装方法包括：（1）制备包含基板的组件; 围绕所述基底的外壳，优选地是热收缩外壳; 密封材料在外壳内; 和外壳内的加热器; 和（2）使用所述加热器改变密封材料的粘度。 优选地，加热器是PTC加热器，特别是加热器以片状或带状的形式附着到热塑性密封材料上。 以这种方式，可以获得期望的通过组件的热分布，从而可以使用延长的加热时间。

公开(公告)号：US5396575A

公开(公告)日：1995-03-07

申请号：US993946

申请日：1992-12-18

Applicant: Gregory P. Hayward ,  Robert J. Naidoff ,  David A. Horsma ,  Lowell I. Koht ,  Donald Del Fava ,  Damian Kaczorowski ,  Thomas A. Kridl

Inventor： Gregory P. Hayward ,  Robert J. Naidoff ,  David A. Horsma ,  Lowell I. Koht ,  Donald Del Fava ,  Damian Kaczorowski ,  Thomas A. Kridl

IPC: G02B6/24 ,  G02B6/00 ,  G02B6/44 ,  G02B6/36

CPC classification number: G02B6/4442

Abstract: An assembly capable of enclosing and sealing an intermediate section of an optical fiber includes a plurality of sealing mechanisms arranged such that the assembly can be entered to gain access to electronic components for servicing without affecting an environment occupied by optical fiber broken out of an optical fiber cable. Accordingly, physical integrity of the exposed fiber, and its associated connectors and splices, is not compromised. The assembly further includes a plurality of card cages, each of which has its own integral backplane having socket connectors which allow for connection to an adjacent card cage backplane within the assembly. During initial deployment of the assembly where less than all card cages for maximum capacity are initially required to be deployed, segmenting the backplane reduces the first installed cost of the assembly. Finally, multiple alarms are provided for the assembly to alert a central office that a cover of the assembly has been removed and a humidity level within a vicinity of the broken out fiber cable exceeds a predetermined level.

Abstract translation: 能够封闭和密封光纤的中间部分的组件包括多个密封机构，其布置成使得可以进入组件以进入用于维修的电子部件，而不会影响由光纤断开的光纤所占据的环境 电缆。 因此，暴露的光纤及其相关联的连接器和接头的物理完整性不受影响。 组件还包括多个卡笼，每个卡笼具有其自己的整体底板，其具有插座连接器，其允许连接到组件内的相邻卡笼背板。 在组装的初始部署期间，最初需要部署最少容量的所有卡笼时，分割背板会降低组件的首次安装成本。 最后，为组件提供多个报警，以警示中心局组件的盖已被移除，并且断裂的光纤电缆附近的湿度水平超过预定水平。