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US 5,350,115 AGranted
Lawn sprinkler with cam-controlled variable spray pattern
AssigneeVermont American Corporation
InventorsDouglas J. Burnworth, Joachim H. Lungershausen
Life of this patent
Estimating the term…
Abstract
An oscillating sprinkler adjustable to selectively alter and adjust the spray pattern as desired is provided. Adjustment is provided by an internal selectable cam connected to an external rotary dial at the distal end of the sprinkler. Placing the spray adjustment dial at the distal (non-hose) end of the sprinkler minimizes the chances of the operator getting wet while selecting the desired spray pattern while the sprinkler is in operation.
Claims26
An oscillating water sprinkler comprising:
- a water tube to carry water having a plurality of orifices in the top thereof;
- a cam shaft extending longitudinally of and disposed within said water tube, said cam shaft including a plurality of rotatable plungers therealong, and a plurality of cam surfaces, said rotatable plungers being in cooperating relation with and movable in response to positioning of said cam surfaces to selectably permit or interrupt water flow to said orifices;
- means to rotate said cam shaft;
- means to oscillate said water tube;
- and
- means to add water to said water tube.
3 more elements
An oscillating water sprinkler comprising:
- an elongated casing disposed between first and second support housings at either end of said casing, each support housing having a base portion and an upper portion concentric of said casing, and said casing having a generally longitudinal opening therein along the top surface thereof;
- a water tube to carry water carried within said casing and connected to said upper portion of said first and second support housings at each end of said water tube, said water tube being in sealed relationship with a water motor so that water is directed only into said water tube and not into any other portion of said casing, said water tube having a plurality of orifices in the top thereof, said orifices being placed along the length of said water tube in corresponding relationship with said opening of said casing, said orifices being grouped in thee distinct groups, one of which is open at all times and the second and third of which are selectably open or closed in response to water flow interruption plungers located upon a cam shaft;
- a cam shaft extending longitudinally of and disposed within said casing, said cam shaft including a plurality of rotatable water flow interruption plungers therealong and a plurality of cam surfaces positioned along the longitudinal axis of said casing in corresponding relationship to said second and said third grouping of orifices, each said rotatable water flow interruption plunger being in cooperating relation with and movable in response to positioning of said cam surfaces to selectably permit or interrupt water flow to said orifices;
- a generally circular cam dial to rotate said cam shaft to one of several selectable positions each of which actuates one or more preselected rotatable plungers to open or close corresponding preselected orifices, said cam dial being mounted concentric to said casing and in cooperation with said second support housing and connected to one end of said cam shaft, said cam dial rotation being independent of said casing;
- a water motor within said first support housing to oscillate said casing, said motor having gears connected to drive means connected to said casing, whereby said casing oscillates in response to water flowing through said water motor;
- and
- a hose fitting upon said first support housing to accept a water supply and direct water through said water motor and into said water tube and out of said orifices which are open.
4 more elements
Dependencies are inferred from the claim text.