Telephonic communications – Subscriber line or transmission line interface – Protective circuit
Patent
1992-08-31
1994-11-08
Friedman, Carl D.
Telephonic communications
Subscriber line or transmission line interface
Protective circuit
379397, H04M 900
Patent
active
053634420
ABSTRACT:
An apparatus and a method for retrofitting RIDs onto conventional surge protectors at the boundary between a subscriber's telephone lines and the telephone company's wiring comprises a mounting unit which serves as an interface between the surge protector and the RID. The mounting unit connects to the surge protector terminals and retains a RID device. The mounting unit includes connection terminals which receive incoming subscriber wires and form a conductive contact between the subscriber terminals and the RID terminals. In one aspect of the invention, the mounting unit is configured so that the mounting unit as well as the attached RID both fit conveniently beneath the already existing surge protector housing. In a further aspect of the invention, the mounting unit may be configured to interface with a variety of differently configured surge protector devices. In still another aspect of the invention, intermediate mounting brackets are used in conjunction with the mounting units. In yet another embodiment of the invention, the RID is configured so that the RID fits conveniently within the normal jumper path between the columns of an industrial surge protector device.
REFERENCES:
patent: 3773986 (1973-11-01), Tremblay
patent: 4624514 (1986-11-01), Smith
patent: 4800588 (1989-01-01), Poster, Jr.
Dernbach Donald F.
Perkins Donald W.
Friedman Carl D.
Smith Creighton
Training Delivery Services, Inc.
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