Abstract:
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 use of a wide variety of existing components which are readily adapted for such assembly.
Abstract:
An improved telephone protector module construction for use with individual subscriber circuits in which the inner end wall having contact means thereon is recessed to accommodate a sealing gasket which surrounds the contact and ground pins, and provides a resilient seal against the corresponding surfaces of the engaged protector block to prevent accumulation of dirt, dust and vermin when installation is made in only partially shielded outdoor locations. The seal is formed from closed cell synthetic resinous sponge rubber so as to be non-absorbtive of ambient moisture while effectively closing the gap normally existing between the inner wall surface of the module and the corresponding surface of the block.
Abstract:
A protector block for connecting plural individual telephone subscriber circuits adapted to replace existing nonstandard installations to enable usage of standard protector modules is disclosed.
Abstract:
An improved and simplified voltage sensitive switching unit for opening a telephone subscriber pair at the line of demarcation for purposes of conducting line tests of the pair from the telephone central office to determine the state of the line. Relatively complex prior art circuitry is replaced by a combination of inexpensive solid state devices which eliminates the need for a prior art combination of diode bridge and transistor switching network.
Abstract:
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 protect the module until the heat coil assembly becomes operative, thereby preventing damage to the synthetic resinous housing element of the module which would interfere with its subsequent removal. An improved gas tube element is also disclosed having recesses disposed in the end surfaces thereof to prevent total shorting action by the heat coil element until the planar fusible member has melted. An improved gas tube element is also disclosed having recesses disposed in the end surfaces thereof to prevent total shorting action by the heat coil element until the planar fusible member has melted.
Abstract:
An improved guide means for conductors passing through a telephone connector block in which the conductors are prevented from becoming bunched or unidentifiable. The guide means includes a plurality of slidably engaged tray-like elements, each providing channels for a plurality of conductors connected to terminals in a given horizontal plane, the tray-like elements being serially insertible into corresponding recesses in the block as the block is progressively wired.
Abstract:
An improved terminal pin and mounting construction therefor, for use in multicontact switches using flexible wire type contacts mounted upon a stator element, the contacts being bridged by corresponding contacts on a coaxially mounted rotor element. The mounting utilizes improved flexibility of the contact portion of each of the pins to lessen the stress placed upon the fixed mounting portion thereof.
Abstract:
A self-centering plug and socket construction particularly adapted for connection of telephone components, such as protector modules and adaptors therefor, to be engaged upon a protector block. The construction is characterized in a generally circular socket formed to include a plurality of arcuate segments which are radially deflectable relative to the principal axis thereof, and a plug in the form of a pin having an engageable tip, the cross section of which is in the form of an open polygon which may be compressed laterally with respect to its axis to reduce the effective cross sectional dimension thereof. The construction is used to provide at least a single vapor tight joint which will not corrode in service.