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| Number | Title | Issue Date |
| 6624354 | Vehicle electrical junction box The junction box according to the invention includes a housing defined by a lower case and an upper case. A busbar substrate disposed within the housing includes a plurality of busbar substrates. The pier assembly is disposed on at least one of the lower ... | 09/23/2003 |
| 6570460 | Voltage-tunable oscillator with dielectric resonator including a ferroelectric ceramic material A voltage-controlled oscillator including a dielectric resonator having a ferroelectric ceramic material placed between two metallized surfaces and biased by an electric field created by a difference in potential applied between the two surfaces as a func... | 05/27/2003 |
| 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 |
| 6067003 | Surge absorber without chips There is provided a surge absorber without chips in which a pair of discharge electrodes arranged facing to each other in a housing 1 are fixed by welding of the housing 1 with a distance between the discharge electrodes maintained. Clean and dry air or a... | 05/23/2000 |
| 6006661 | Stamp-making apparatus, as well as function changeover mechanism, exposure system and stamp-making object material-detecting device therefor A stamp-making apparatus is provided in which a transparent presser plate is arranged such that the presser plate is parallel with a stamp-making object material, an ink ribbon having a stamp image formed thereon is urged against the stamp-making object m... | 12/28/1999 |
| 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 |
| 5907270 | Current-limiting switch A current-limiting switch, with current connections and contacts, at least one of which is movable, having an associated drive, for opening the moving contact when a predefined electric current intensity is exceeded, are provided. The drive is a thermoele... | 05/25/1999 |
| 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 |
| 5391961 | Gas-filled discharge tube A flange, which is integrally formed with the inner surface of the cylindrical member, is located at an intermediate point between the end surface position of the cylindrical member to which the electrode plate of one of the discharge electrodes is sealed... | 02/21/1995 |
| 5337035 | Discharge tube The discharge tube of this invention does not employ special shapes of electrodes that are difficult to manufacture, but can still provide a uniform electric field. The electrodes are disposed in the inwardly drawn portions of the cylindrical body in such... | 08/09/1994 |
| 5227944 | Breaker for surge protector A breaker assembly for use in conjunction with a surge or lightning arrestor of the type that includes at least one varistor. The varistor circuit is enclosed within a substantially airtight housing that includes a hinged panel. A cantilevered arm is fixe... | 07/13/1993 |
| 5184273 | Microgap type surge absorber A microgap type surge absorber comprises a columnar insulator element being covered with a conductive material and provided with a microgap around the center thereof, a pair of conductive caps being fixed on the both ends of the element, first and second ... | 02/02/1993 |
| 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 |
| 5057810 | Arrester isolator-disconnector A device for connecting and then isolating and disconnecting an arrester has a first electrical terminal, a second electrical terminal and first and second circuits for electrically connecting the first and second terminals. The first circuit includes a c... | 10/15/1991 |
| 4984125 | Arrester apparatus In a gas-filled arrester, a pair of main electrodes and a ground electrode are air-tightly fitted to an insulating tubular member. A springy, electrically-conductive short-circuiting element having an arcuate shape is fitted around the outer wall of the g... | 01/08/1991 |
| 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 |
| 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 |
| 4864455 | Arrester disconnecting device A surge arrester disconnecting device which includes a fixed electrode, a movable electrode, and a latch device for holding the two electrodes in engagement. A trigger device, associated with a first spring and a fusible wire stretched between the movable... | 09/05/1989 |
| 4774622 | Connecting apparatus for lightning arresters for overhead transmission lines A connecting apparatus includes a connecting conductor for connecting a supporting insulator supporting an overhead transmission line and a lightning arrester through a disconnecting member. The connecting conductor includes at least first and second cond... | 09/27/1988 |
| 4743996 | Electrical distribution apparatus having fused draw-out surge arrester Electrical distribution apparatus, such as a pad-mounted electrical distribution transformer, including an electrically grounded tank, an electrical element in the tank, and a draw-out surge arrester assembly which extends into the tank. The draw-out surg... | 05/10/1988 |
| 4730229 | Male base subscriber circuit protector module A male base subscriber pair protector module in which substantially all of the internal components thereof are assembled upon an axially elongated base element prior to insertion within a module housing, thereby facilitating manufacture and allowing the u... | 03/08/1988 |
| 4675778 | Overload protector for communications systems A protector for telephone systems and similar systems is in the form of an elongate housing formed by two hollow box-like members, one fitting within the other. In the bottom member, a line terminal is provided at each end, each terminal connected to a li... | 06/23/1987 |
| 4641218 | Protector with circuit disabler In response to spurious signals in a circuit connecting telecommunications equipment with a serving central office, the signals will pass through terminals of a protector module and through a protector unit inserted in the circuit causing a lead pellet to... | 02/03/1987 |
| 4573100 | Telephone two element gas tube protector module An improved telephone protector module for individual subscriber circuits of generally planar configuration, and having heat-sensitive means employing a solder pellet which, upon melting, flows through capillary action to effect a shorting to ground. Seco... | 02/25/1986 |
| 4535379 | Telephone protector module with auxiliary fusible element A subscriber pair protector module of gas tube type in which the heat coil assembly is supplemented by the provision of a planar fusible member placed in direct contact with the gas tube elements to provide a heat sink for a limited period of time to prot... | 08/13/1985 |
| 4527215 | Valve type voltage arrester device A low voltage valve type arrester device for connection between a domestic electric supply line and earth includes a varistor, a switching device and an encapsulated gas discharge voltage arrester connected in series. The switching device includes two swi... | 07/02/1985 |
| 4493005 | Overload by-pass conductor with an external short circuit path Overload by-pass conductor with an external short circuit heat conduction path, including an outer wall of the overload by-pass conductor, two electrodes, one of the electrodes being a counter electrode, a contact surface connected to the counter electrod... | 01/08/1985 |
| 4463403 | Plug type gas tube replacement module A replacement type gas tube protector for use with an older type telephone protector block utilizing a bayonet lug type engagement. The original carbon block protection is replaced by a gas tube element of smaller dimension, a conductive washer, and an in... | 07/31/1984 |
| 4458288 | Electrical protective devices A protector module (30) for protecting tip and ring conductors of a telephone 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 conne... | 07/03/1984 |
| 4447848 | Telephone surge protector and housings therefor An overvoltage surge protector and housing for telephone communication lines to protect equipment connected thereto includes an insulated housing having one terminal disposed therein which is adapted to be connected to earth ground and a second terminal d... | 05/08/1984 |
| 4434449 | Protector unit for telecommunications circuits A protector unit (30) for protecting tip-and-ring conductors of a telephone loop includes a pair of protector assemblies (40-40') which are supported within a common housing 932). A voltage protection subassembly (42) is connected electrically to a ground... | 02/28/1984 |
| 4424546 | Miniature central office surge protectors A miniature surge protector for use in telephone central offices, or the like which are provided with terminal blocks for communication lines includes an in-line over-current coil arrangement which grounds each communication line if an overcurrent flows t... | 01/03/1984 |
| 4422121 | Line protector for a communications circuit A line protector for central office use comprises an elongated housing open at one side for receiving components and a cover for the opening. First and second surge arresters are coaxially positioned within the housing. First and second line terminals are... | 12/20/1983 |
| 4420792 | Plug-in connector with arresters for separating blocks The subject-matter of the present invention is a plug-in connector with arresters (1) for separating blocks, comprising a cartridge-type housing (20) of insulating material having receptacles for the arresters (1), each of said arresters being connected t... | 12/13/1983 |
| 4405967 | Gas tube overvoltage protector with back-up gap A gas tube overvoltage protector has two opposed electrodes sealed in a tubular dielectric housing, the outer ends of the electrodes extending from the housing. The inner ends of the electrodes define a primary gap at sub-atmospheric pressure. The lower e... | 09/20/1983 |
| 4396969 | Gas tube protector module An improved gas type telephone protector module in which the firing of a heat-sensitive means causes a slidably mounted ground plate to bypass in both circuits to the flow of excess current and/or voltage surges to ground. Means are incorporated to provid... | 08/02/1983 |
| 4380036 | Clip-on protector A clip-on device to protect telephones and communication apparatus, wherein clips for releasably holding a 3-terminal gas protector are external extensions of electrically insulated spaced terminals within the housing. A heat coil in series with each comm... | 04/12/1983 |
| 4335416 | Telephone protector module having flag indicator A heat sensitive telephone protector module of a type having visual indicator means to indicate the actuation of heat sensitive means upon the occurrence of excessive current flow. The module includes dual heat sensitive units for protecting the tip and r... | 06/15/1982 |
| 4335415 | Antenna lightning arrestor A lightweight frame having a base of non-conducting material and end frame members consisting of aluminum mounts a pair of clip-type fuse supports. Each fuse support is attached to connectors which extend through the housing for connection to the lead in ... | 06/15/1982 |
| 4327393 | Protector module base assembly with an external spark gap An electrical surge arrester module having a back-up external spark gap in its base assembly comprising an insulator plate perforated at points intermediate a terminal contact surface in said base assembly and a conductive plate at ground potential when s... | 04/27/1982 |
