US 4,379,097 AGranted

Hydrotherapy jet unit

OwnerWilbur P. Leggettinventor

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Abstract

A hydrotherapy jet unit used singly or in multiples for jetting pressurized water and air under submerged conditions into a water-bearing vessel, and provided with a means to fix the direction of jetted flow at an optimum angle not susceptible to change of alteration by the vessel user; however, each unit being readily adaptable to provide directional jetted flows at differing fixed angles by means of removable and interchangeable deflection nozzles. The unit features both water and air supply pipes entering the hydrotherapy jet housing at its rear extremity, said pipes being substantially parallel to each other and axially aligned with the jet action produced within the unit. This arrangement provides a means for simple removal and replacement of the unit if required without need to damage, alter or reconfigure pipe means supplying either water or air. An additional feature is an integral and functional cover cap for the frontal or exit end of the unit which is easily removable and interchangeable, and which affords a means for aesthetic change of unit external appearance whenever differing colors or finishes are desired by the user.

Claims11

Dependent claims

An improvement in a hydrotherapy jet unit for use under submerged conditions comprising a cylindrical housing bearing external threads throughout substantially its entire cylindrical length, and provided with means for attaching said housing to pipe means connected to a pressurized water source and by separate and substantially parallel pipe means to ambient air, said housing bearing an integral circular mounting flange at the exit end of the cylindrical housing, said flange being of larger diameter than said cylindrical housing to facilitate insertion of said housing in a wall of a water-bearing vessel, said housing containing a water-air mixing chamber into which air is induced via said air pipe means and an axially aligned integral plenum cavity, said housing further containing an expansion chamber, a deflection nozzle cavity adjacent said expansion chamber, a deflection nozzle mounted in the deflection nozzle cavity, and a cover cap, whereby water and air which are brought together and mixed in said water-air mixing chamber are jetted through said housing at high velocity passing from said water-air mixing chamber to said expansion chamber, thence through said deflection nozzle and thence through an opening in said cover cap.

Dependencies are inferred from the claim text.