Cook Electric Company

Northern Telecom Limited

Frank G Splitt

Eric A Scheithauer

Casimir Z Cwirzen

William W Hines

Arnold M Ladd

William P Frantz

Donald B Turner

A station protector, such as the type having pairs of arrestors positioned in adjacent wells, with screw cap enclosing the wells, is provided with positive protection by interconnecting a pair of screw caps by means which prevents turning of either screw cap, to provide access to a well, without breaking a connecting member and thus giving an indication of such turning, and access. The connecting member can be a bar attached to the screw caps, or cap member extending over the screw caps and connected to them. The cap members can be connected to the screw caps by bonding, crimping or other method.

Apparatus for providing positive protection for station protectors for

A gas filled surge arrester having improved impulse ratio, characterized by an ion source in an electric field outside of the spark gap.

Surge arrester with improved impulse ratio

A connector assembly designed to be mounted on a telephone main distribution frame includes a connector base having a plurality of rows of channels formed on one face by ledges extending between elongated edges of the connector base, a ground plate having a conductive side and an insulating side and a plurality of pedestals. A first set of terminals extends through the pedestals, the ground plate and the connector base into the channels, and a second set of terminals extends through the pedestals, the ground plate and the connector base so as to project from the ledges such that the first and second sets of terminals maintain the connector base, ground plate and pedestals together. A set of ground receptacles extends from the insulating side of the ground plate and is coupled to the conductive side of the ground plate and with receptacle portions of the terminals in the first and second sets of terminals forms rows and columns of socket groups in the pedestals into which plug-in type protector module may be inserted. Along one of the elongated edges of the connector base is disposed a fanning strip through which incoming and central office telephone lines are extended for connection to the pin portions of the terminals projecting into the channels and from the ledges and is disposed a mounting bracket which groups the incoming telephone lines by having them maintained in channels in the mounting bracket by clip devices and which mounts the connector assembly to the distribution frame such that it can be rotated for easy access of the pin portions of the terminals. Covers also may be provided for the channels and for the pins extending from the ledges. In addition, along the other edge of the connector base, an identification plate or a test field assembly may be mounted.

Connector assembly for telephone distribution equipment

A station protector is used in protecting pairs of telephone lines at a station from high voltages or surge currents occurring on the telephone lines and includes a base assembly having an upstanding wall at one end, an arrester mounting section adjacent the opposite end, and a pair of line terminals and a ground terminal disposed between the wall and the arrester mounting section. A removable ground clip assembly is disposed in the arrester mounting section so that a three-electrode gas tube arrester having a line electrode at each end of the tube and a ground electrode therebetween can be mounted on the base assembly to provide protection for the telephone lines. The ground clip assembly contains movable contact assemblies insertable into each of a pair of cavities located in the arrester mounting section and resiliently biased so that a contact rod portion in the contact assembly is normally coupled to the ground terminal. When a case having the three-electrode gas tube retained therein is mounted on the ground clip assembly such that the ground electrode is coupled to the ground terminal, contact shafts fusibly linked to each of the line electrodes cause the contact rod portion of each of the contact assemblies to be disconnected from the ground terminal and to connect the contact shafts to the line terminals. In the preferred embodiment, a cover is slidable over the base assembly so as to protect the base assembly from the weather, insects and tampering.

Methods of assembling and mounting three-electrode gas tube arrester

Station protector with a three-electrode gas tube arrester

A two pair station protector is used at a station to protect pairs of telephone circuit lines from high voltage or surge currents and includes a base assembly having an upstanding wall with a pair of notches, in each of which is insertable an insulating grommet and through each of which is extendable said lines. The base assembly also includes an overvoltage arrester mounting section for overvoltage arresters, a line terminal section containing four line terminals and a ground terminal coupled to the arresters and a storage space between the upstanding wall and line terminal section. In order to facilitate the wiring of the telephone lines extending through the grommets to the line terminals and to associate the line terminals with the arresters to which it is coupled, the line terminals are disposed between the upstanding wall and the arrester mounting section such that two of the line terminals are in alignment with one of the notches and the other two of the line terminals are aligned with the other notch. In the preferred embodiment, a cover is slidably mounted over the base assembly to protect the base assembly from the weather, insects and tampering and the station protector has two in line mounting holes and an offset mounting hole to facilitate mounting of the station protector to a mounting surface.

Two pair station protector

A connector block for mounting plug-in type protector assemblies to protect telephone equipment from high voltage and current surges occurring on incoming telephone lines includes an elongated, relatively narrow mounting panel having a mounting end portion at either end. Disposed along the mounting panel is a plurality of socket groups arranged in a single column and a plurality of terminal hole groups arranged in a single column adjacent the socket groups, each of the terminal hole groups being associated with one of the socket groups. Each of the socket groups contains four line terminal contacts and a ground terminal contact. The ground terminal contact in each of the socket groups has a holder portion extending from a rear face of the mounting panel to which is coupled a single ground terminal bus bar. The ground terminal bus bar is coupled to grounding plates positioned adjacent the rear of each of the end portions. In one embodiment, a fanning strip is detachably mounted to the end portions so as to be positioned along a side of the mounting panel to protect conductors coupled to contacts or terminals in the sockets or terminal holes.

Growing community of inventors

Arlington Heights, IL, United States of America

Frank G Splitt