Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 6932624 | Modular signal and power connection device An electrical connection box for wall mounting provides a recessed external plug for receiving or transmitting power to electronic components. The connection box is configured to receive a variety of signal connection modules for interconnecting associated audio/vis... | 08/23/2005 |
| 6492894 | Coaxial fuse and protector A protective device for excess current utilizes a fuse that incorporates a printed circuit board. The printed circuit board has a trace on one side which is of a desired width, length, and thickness of material for opening if excess current for a selected... | 12/10/2002 |
| 6307462 | Low profile mount for metal oxide varistor package with short circuit protection and method A low profile mount for a disc varistor. A thermally sensitive switch is provided both for single and multiple electrode embodiments. The switch may be placed in a shorting circuit and include a spring biased conductor prevented from closure by a heat sen... | 10/23/2001 |
| 6204746 | Thermal overload mechanism A thermal overload mechanism for providing protection to tip and ring conductors in a telecommunications system in the event of a power cross occurrence of telephone lines with power lines. The thermal overload mechanism includes a clip having front and r... | 03/20/2001 |
| 5952910 | Isolator device for arrester A device for connecting, and then isolating and disconnecting an arrester includes a non-conductive housing with two electrical terminals. The housing has opposite ends separated by an internal chamber. The terminals are mounted at the housing ends. A res... | 09/14/1999 |
| 5844785 | Protector device with isolated ground connector Disclosed is a protector device designed for insertion in connecting blocks. The device includes a ground connector which has a detent on one end for receiving a ground bar from the connecting block. The other end of the connector contacts the ground elec... | 12/01/1998 |
| 5805070 | Device for indicating a destroyed arrester A system for registering a malfunction in telecommunications equipment comprises a protective device including a terminal connector pin and a ground pin connected to ground. The system also includes a housing member for housing the protective device, the ... | 09/08/1998 |
| 5644465 | Surge arrester with external short-circuit device In a three-electrode surge arrester where the center electrode (3) is provided with a connecting wire (6) that projects outward radially and is provided with an outside short-circuit device, the latter consists of a two-arm spring clip (20) whose arms pro... | 07/01/1997 |
| 5561582 | Failsafe device for use with electrical surge suppressor A failsafe device is shown in which a solid state surge suppressor (12) is mounted thermally coupled to a heat transfer element (42). A shorting bar (60) is attached to element (42) by a thin layer of solder chosen to melt at a selected maximum temperatur... | 10/01/1996 |
| 5508675 | Miniature gas tube assembly with back-up air gap A miniature overvoltage protection device including a back-up air gap for use in miniature telephone modules and related equipment includes a generally U-shaped bracket adapted to receive an overvoltage protection device thereon and has a bracket insulati... | 04/16/1996 |
| 5424901 | Sidactor fail-safe device An improved fail-safe mechanism is provided for use with a sidactor for protecting telecommunication equipment against high voltage surges. A sidactor includes first and second end terminal pins and a central terminal pin. The fail-safe mechanism consists... | 06/13/1995 |
| 5398152 | Overvoltage protector An overvoltage protector for protection of telecommunication equipment having a pair of line terminals, and a respective pair of levers forming part of the ground circuit, with an overvoltage protective device bonded under tension between each line termin... | 03/14/1995 |
| 5371648 | Plug-in protection module for a module for rapid interconnection of telephone lines This invention relates to a protection module provided to receive an overvoltage arrester in a receptacle and designed to plug on the protection ring of a telephone line interconnection module. The receptacle presents a receiving cavity adapted to receive... | 12/06/1994 |
| 5359657 | Telephone line overvoltage protection apparatus An overvoltage protection apparatus used with a pair of telephone lines includes first voltage clamping circuitry for clamping voltage signals on the lines at a first predetermined voltage potential. The first voltage clamping circuitry is formed by at le... | 10/25/1994 |
| 5357568 | Telephone line overvoltage protection method and apparatus A telephone line overvoltage protection method and device are provided. An overvoltage protection apparatus used with a pair of telephone lines includes first voltage clamping circuitry for clamping voltage signals on the lines at a first predetermined vo... | 10/18/1994 |
| 5313183 | Gas-tube arrester A gas-tube arrester includes an arrester body containing an inert gas and having first and second electrodes positioned in spaced, facing relationship to each other and separated by an insulator. An insulating, heat-resistant film is in contact with the f... | 05/17/1994 |
| 5248953 | Thermal overload protection device for electronic components A thermal overload protection device for electronic components, in particular for the telecommunication and data technology. The overload device has a spring-elastic shorting link 6 and a melt element 13. Tripping of the shorting link 6 performed in depen... | 09/28/1993 |
| 5247273 | Surge absorber for protection of communication equipment connected to communication lines A surge absorber including a surge absorbing element for protecting communication equipment from transient surges and a thermal response switch with an automatic restoration function connected in parallel with the surge absorbing element. The inventive su... | 09/21/1993 |
| 5224013 | Miniature station protector modules A miniature station protector module for communication systems includes a hollow housing into which is disposed a pair of line terminals with a ground terminal therebetween. The line terminals extend into the hollow housing and include thereon a back-up s... | 06/29/1993 |
| 5195015 | Line protector for a communications circuit A line protector for a communications circuit comprises a housing, an over-voltage arrester received in said housing and having axially opposite electrodes and a ground strip for coupling one of the electrodes to electrical ground. An over-current arreste... | 03/16/1993 |
| 5157580 | Protective plug for connector banks of telecommunication and data systems The invention relates to a protective plug (1) for connector banks (20) of telecommunication and data systems, comprising a housing (2) for receiving protective elements (7, 8, 9) connected to establish an electrical connection to an earth rail (44) and w... | 10/20/1992 |
| 5101317 | Overload protector for telecommunications systems An overload protector for a telecommunications system with an overcurrent protection device for each signal line in a chamber formed between a housing and a base and in which the base carries the line and ground pins and also an overvoltage device for eac... | 03/31/1992 |
| 5029302 | Fail safe gas tube A fail-safe arrestor for electrical circuits utilizes a gas-filled tube to conduct at an over-voltage and also provides a clip to solidly couple the circuit to a ground lead at the melting from continuous current flow of an insulator interposed between an... | 07/02/1991 |
| 5027100 | Gas tube fail safe device for telephone protector modules A gas tube fail safe device for use in individual subscriber circuit telephone mmodules and related equipment, in which a fusible element is adapted to by-pass the conductive function of the gas tube in the event of gas tube failure. In one embodiment the... | 06/25/1991 |
| 5008772 | Telephone circuit protector module having plural circuit grounding means An improved telephone subscriber circuit protector module providing plural surge voltage and excess current protection elements including so-called sneak current protection. The module includes a three-element gas tube which protects against voltage surge... | 04/16/1991 |
| 4980909 | Protector module for laminar type telephone blocks An individual telephone subscriber circuit module for use with laminar type connector blocks employing conventional three-element gas tubes of diameter greater than the thickness of an individual lamina. The module houses two gas tubes in side-by-side rel... | 12/25/1990 |
| 4912592 | Gas-filled surge arrestor A gas filled surge arestor has at least one external air back-up gap comprising two spaced electrodes(7a,2 or 7a,3), one (7a) of which has at least one sharp edge or corner (9) adjacent the other electrode (2 or 3). The said one electrode (7a) is resilien... | 03/27/1990 |
| 4910489 | Gas tube fail-safe device for telephone protector modules A fail-safe secondary fuse device for assuring the grounding of a conductive gas tube used in modular protection devices for individual subscriber circuit pairs. The device resiliently engages each of the three end and center electrodes normally provided ... | 03/20/1990 |
| 4907120 | Line protector for a communications circuit A line protector for a communications circuit. The protector has a three electrode gas tube, the end electrodes of which are connected to the protector's line input terminals. The middle electrode of the tube is connected to the protector's ground termina... | 03/06/1990 |
| 4901188 | Line protector with spring A line protector module device for a communications circuit having a line protector circuit assembly including a base, a frame having a retaining portion, a spring mounted to the base, an arrester and a solder pellet compressibly held between the spring a... | 02/13/1990 |
| 4887183 | Communication system thermoprotection device for over voltage suppressor mounted in overvoltage suppressor magazines of communication systems A thermal protection device for overvoltage suppressor which includes spaced contacts 6 mounted in overvoltage suppressor magazines 11 of communication systems. A bow-type spring 3 and a melt element 2 l are arranged with the overvoltage suppressor which ... | 12/12/1989 |
| 4882748 | Homologated protector modules for telephone connector blocks A series of individual telephone subscriber circuit modules for use with telephone connector blocks having flat insulation displacement clips projecting from a planar surface thereof. The block mounts a grounding strip medially positioned on said surface.... | 11/21/1989 |
| 4876626 | Central office protector module with alarm indicator A central office protector module which includes a light to provide a visual indication whenever the module shorts either of the lines protected by the module to groud as a result of either a sustained overcurrent or overvoltage condition on either line. ... | 10/24/1989 |
| 4866561 | Lightning arrester device comprising at least one fusible element The lightning arrester device comprises an external metal casing (1) defining an enclosure (2) containing a neutral gas, and at least one metal rod (3a, 3b) forming an electrode and penetrating into the interior of the casing, insulating sealing means (4)... | 09/12/1989 |
| 4866562 | Self-contained air gap assembly A self-contained air gap spark arrester assembly is disclosed which may be constructed and tested prior to its incorporation into a fail-safe surge arrester assembly. The air gap spark arrester assembly comprises a rivet shaped electrode, on which are con... | 09/12/1989 |
| 4866563 | Transient suppressor device assembly A transient suppressor device assembly having at least two electrical components and a fail-safe clip. The fail-safe clip has means for simultaneously providing the necessary electrical conductive paths, providing fail-safe operation if an electrical comp... | 09/12/1989 |
| 4794362 | Alternating current power circuit and fuse therefor A fuse for an alternating current power circuit. The fuse comprises an input terminal (4), a first contact (5) electrically connected to the input terminal, an output terminal (9) and a second contact (8) electrically connected to the output terminal. A f... | 12/27/1988 |
| 4737880 | Station protector for communications lines A station protector for communication lines includes a line terminal formed for electrical connection to the communication lines and affixed to a base member of electrical insulator material. The base member has a well into which an arrester cartridge can... | 04/12/1988 |
| 4736269 | Voltage surge limiter with grounding assembly A protector module (30) for protecting the conductors of a telephone loop cludes a pair of protector assemblies (40-40') which are supported within a common housing (32). A gas tube voltage protection subassembly (42) of each protector assembly is connect... | 04/05/1988 |
| 4733325 | Electrical protective devices A protector module (30) for protecting tip and ring conductors of a telepe loop includes a pair of protector assemblies (40--40') which are supported within a common housing (32). A voltage protection subassembly (42) of each protector assembly is connec... | 03/22/1988 |
