ELEKTRONISCHER ZEITSCHALTER FUER BEWAESSERUNGSANLAGE.

摘要

Apparatus for connection with a sill cock for communicating water under pressure from the sill cock (12) with hose having a lawn sprinkler communicating therewith comprising a water control unit having a female coupler (58) for connection with the sill cock, a male coupler (34) for connection with the hose, a valve (42) between the couplers and a battery operated valve mechanism (68-108) operable in response to the connection of the electric current thereto for effecting movement of the valve from a closed position into an opened position, and a manually portable programming unit (14) containing a battery operated programming keyboard, a battery operated display, and batteries operatively connected therewith. Plug and socket assemblies serve to mount the portable unit (14) in supported relation on the first unit (16) in an operative position and for disengagement to enable the portable unit to be disposed in a remote position with respect to the fixed first unit such that a user can operate the programming keyboard (14) remote from the first unit (16) allowing for observation of the display at close eye-level proximity both with respect to the selection of future sprinkling time periods and single immediate opening and closing movements of the valve. An extension cord accessory is provided which renders the portable unit operable to operate the first unit either in its operative position or when the portable unit is disposed in a remote position. When the portable unit (14) is provided with a modified keyboard permitting programming of three separate water cycles, the apparatus forms part of a whole lawn watering system which includes a stepping valve unit (478) operable as each watering cycle occurs to connect the outlet of the water control unit to a different sprinkler.