Abstract: A sprinkler is designed to be stacked upon a like sprinkler. The sprinkler includes a spray tube, a sled, a projection extending from either a top or bottom surface of the sled, and a recess formed at the top or bottom surface of the sled. The recess accommodates the projection extending from the sled of the like sprinkler so that the sprinkler can be stacked with the like sprinkler.

Abstract: A variable range sprinkler apparatus includes a sprinkler portion, a bypass unit housing a plurality of valves, and a water inlet portion. The sprinkler portion of the apparatus, which may be a rotary sprinkler unit, is attached to the bypass unit, and the bypass unit is coupled to the water inlet portion. Inside the bypass unit is a plurality of valves, at least one of which is adjustable, that are designed to open a water passage in the bypass unit.

Abstract: A smart water timer which includes a water timer, a receiving unit connected to the water timer, and a moisture sensing unit which is in wireless communication with the receiving unit. The smart water timer can sense when the moisture level in the soil is too moist (based on a user setting) and turn off a water supply to a sprinkler as a result A soil moisture sensing unit is placed in the soil in the area to be watered. The soil moisture sensing unit uses a moisture sensing probe and wirelessly transmits a data signal to the receiver, which is connected to the water timer, indicating whether or not the water timer should be permitted to open a water valve.

Abstract: A watering device for watering bushes, grass, etc., which has a base unit connected to a substantially vertical riser which is connected to a sprinkler head, wherein the base unit can also have a receiving unit which holds a substantially vertical riser and a plurality stabilizing units, wherein the plurality of stabilizing units are adapted to be inserted in the ground, and wherein the stabilizing units are removable from the receiving unit.

Abstract: A water sensor apparatus used in connection with a watering system. The water sensor apparatus includes a main housing comprising an inlet and an outlet. A valve mechanism is provided inside the main housing. The valve mechanism opens and closes the outlet of the main housing in response to a water level collected in the main housing and a water pressure entering the inlet of the main housing.

Abstract: A smart water timer which includes a water timer, a receiving unit connected to the water timer, and a moisture sensing unit which is in wireless communication with the receiving unit. The smart water timer can sense when the moisture level in the soil is too moist (based on a user setting) and turn off a water supply to a sprinkler as a result A soil moisture sensing unit is placed in the soil in the area to be watered. The soil moisture sensing unit uses a moisture sensing probe and wirelessly transmits a data signal to the receiver, which is connected to the water timer, indicating whether or not the water timer should be permitted to open a water valve.

Abstract: An impulse ink jet print head including a compliant chamber and a check valve coupled between an ink supply and an ink chamber. The compliant chamber attenuates pressure disturbances of short duration. The check valve prevents the reverse flow of ink and depriming of the print head.

Abstract: An electrical connector device to connect an electric power cord to a hand-held electric appliance, the connector device having an outer case housing with an inner chamber and at least one spring contact extending thereinto; a main housing rotatively supported in the outer case chamber, the main housing having two separated sockets therein, a stepped cylindrical top portion, and a bottom wall with an opening therethrough; at least one conductor compressively positioned on the stepped cylindrical portion of the main housing, the conductor being electrically connected to the power cord and to the spring contact; and a cord bushing having oppositely extending arms and a body portion with a bore therethrough, the power cord extending through the body portion bore, the arms being pivotly mounted in the separated sockets and the body portion extending through the bottom opening of the main housing; wherein the electrical connector device provides the power cord with two free axes of movement.