Electrical transmission or interconnection systems – Switching systems
Patent
1987-07-01
1989-03-07
Roskoski, Bernard
Electrical transmission or interconnection systems
Switching systems
174 521, H05K 504
Patent
active
048108979
ABSTRACT:
A timer assembly for automatically controlling outdoor electrical devices such as low voltage lawn sprinkler systems includes a rugged, weatherproof housing for removably containing a conventional, indoor type timer and an optional step-down transformer. The housing comprises a box member, which is divided into two compartments by means of a ledge member, and a cover member hingedly connected to the box member to selectively provide and block access to the compartments. The ledge member comprises a pair of openings for allowing wires to pass between the two compartments. The bottom wall of the box member comprises a pair of openings for allowing input wires to enter the housing and output wires to exit the housing.
REFERENCES:
patent: 2462490 (1949-02-01), Hallett
patent: 2606218 (1952-08-01), Wickman
patent: 3646401 (1972-02-01), Freegard et al.
patent: 3691288 (1972-09-01), Sturdivan
patent: 4152671 (1979-05-01), Tuma et al.
patent: 4339231 (1982-07-01), Conery et al.
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