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US4523718A Expired / Lapsed US ⏱️ 0.0 years remaining

Showerhead

Assignee: Individual
•
Filing: 1980-03-03
•
Granted: 1985-06-18
•
Expires: 2000-03-03
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Abstract

Abstract A showerhead of the type including an inlet end, an outlet end, and a bore defining a passage between the two. Diffusing stages are incorporated within the bore. These diffusing stages consist of a plurality of orifices arranged with their centers spaced at regular intervals around a circle of predetermined diameter. A diffusing washer is rigidly mounted to the diffusing stage nearest the outlet end to deflect the water stream from a substantially parallel path to an inclined path which intercepts the interior wall of the outlet end. Aeration holes extending substantially perpendicular to the flow of water allows air to be drawn into the water stream producing turbulence and diffusion of the water stream. In one embodiment the last diffusing stage is movably mounted within said bore in such a manner that if its orifices become clogged it can move axially downstream to allow the water to flow around the stage and exit the showerhead.

Inventors

  • 👤 H. Alton Pearson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 06:38
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/30; B05B1/3006; B05B7/00; B05B7/02; B05B7/04; B05B7/0416; B05B7/0425; B05B1/14; B05B1/18

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 162 words
A showerhead for reducing water usage while providing effective shower effect comprising a body having an inlet end adapted to be connected to a source of water under pressure, a water outlet end spaced apart from said inlet end, and a bore defining a passage extending between said inlet and outlet ends, comprising: at least one diffusing stage within said bore comprising a disc having a plurality of orifices essentially parallel to the direction of water flow; a diffusing washer within said bore fixedly attached to the downstream face of said disc to deflect the water from a path essentially parallel to the axis of said bore to a path which intercepts the interior wall of said water outlet before exiting the showerhead, wherein said diffusing washer and disc are movably mounted within said bore allowing said disc and washer to move axially downstream creating an alternate path for water flow around said disc if the orifices of said disc are clogged.
Claim 2
Dependent Claim 162 words
A showerhead for reducing water usage while providing effective shower effect comprising a body having an inlet end adapted to be connected to a source of water under pressure, a water outlet end spaced apart from said inlet end, and a bore defining a passage extending between said inlet and outlet ends, comprising: at least one diffusing stage within said bore comprising a disc having a plurality of orifices essentially parallel to the direction of water flow; a diffusing washer within said bore fixedly attached to the downstream face of said disc to deflect the water from a path essentially parallel to the axis of said bore to a path which intercepts the interior wall of said water outlet before exiting the showerhead, wherein said diffusing washer and disc are movably mounted within said bore allowing said disc and washer to move axially downstream creating an alternate path for water flow around said disc if the orifices of said disc are clogged.

References Cited (Backward Citations)

US2858120A Cited
US2990123A Cited
US3322352A Cited
US3358934A Cited
US3831860A Cited
US3999714A Cited
US4013230A Cited
US4139022A Cited
US4145004A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-06-17 1988-12-17 1989-06-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-06-17 1992-12-17 1993-06-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-06-17 1996-12-17 1997-06-18 $7700.00 Window Closed / Lapsed

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