Water jet regulating cap for water delivery nozzle, particularly for lawn sprinklers with oscillating arm

• US 5,868,318 A
• Filed: 03/27/1997
• Issued: 02/09/1999
• Est. Priority Date: 03/28/1996
• Status: Expired due to Fees

• Current Assignee: Claber SpA
• Original Assignee: Claber SpA
• Inventors: Roman, Gianfranco
• Primary Examiner(s): Kashnikow, Andres
• Assistant Examiner(s): Douglas, Lisa Ann
• Application Number:
  US08/825,211
• Time in Patent Office: 684 Days
• Field of Search: 239/390-5, 239/436, 239/242, 285/921
• US Class Current: 239/242
• CPC Class Codes: B05B 1/3026 the controlling element being a gate valve, a sliding valve or a cock B05B1/3006, B05B1/326 take precedence; gate valves or sliding valves in general F16K3/00; cocks in general F16K5/00

Abstract

A water jet regulating cap for a water delivery nozzle, for e.g., lawn sprinklers with an oscillating arm, comprises two parts of differing plastic materials tightly fixed together. A first part, formed of a rigid plastic material, has a sleeve-like shape and is attachable to the nozzle in such a way as to be held in an axial direction and revolvable around the axis of the nozzle between two end angular positions. A second part, formed of a soft plastic material, has a cup-like shape with a base through which extends an off-center hole which is selectively alignable with a corresponding off-center hole of the nozzle according to the angular position of the cap with respect to the nozzle.

Claims

1. A water jet regulating cap for water delivery nozzle for a lawn sprinkler with an oscillating arm, the cap comprising two parts formed of different plastic materials tightly fixed together, a first of the two parts being made of a rigid plastic material having a sleeve-like shape and being attachable to the nozzle so as to be held in an axial direction and turned around the axis of the nozzle between two end angular positions, a second of the two parts being made of a soft plastic material having a cup-like shape with a base crossed by an off-center hole alignable or non-alignable with a corresponding off-center hole in the nozzle according to the angular position of the cap with respect to the nozzle, wherein the said sleeve-shaped part of the cap is attachable to the nozzle by snap means able to permit the rotation of the cap around the axis of the nozzle and to prevent an axial slipping out of the same.

2. The apparatus of claim 1, wherein said snap means comprise an internal coverage ring-like groove of the sleeve-like part of the cap that is adapted to accommodate a corresponding external convex ring-like protrusion of the nozzle.

3. A water jet regulating cap for water delivery nozzle for a lawn sprinkler with an oscillating arm, the cap comprising two parts formed of different plastic materials tightly fixed together, a first of the two parts being made of a rigid plastic material having a sleeve-like shape and being attachable to the nozzle so as to be held in an axial direction and turned around the axis of the nozzle between two end angular positions, a second of the two parts being made of a soft plastic material having a cup-like shape with a base crossed by an off-center hole alienable or non-alienable with a corresponding off-center hole in the nozzle according to the angular position of the cap with respect to the nozzle, wherein said end angular positions of the cap are secured by engagement of a protruding angular sector of said cup-like piece of the cap with a protruding tooth of the nozzle.