US4941217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow enhancing jet fitting
Assignee: Hayward Industries Inc
•
Filing: 1989-03-13
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Granted: 1990-07-17
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Expires: 2009-03-13
Abstract
Abstract A jet fitting for a hydrotherapeutic receptacle includes an internal chamber which functions as a mixing chamber as well as a suction chamber. More particularly, a primary stream of water is supplied to the mixing chamber in such a manner that a low pressure condition is created within the mixing chamber for the purpose of entraining a secondary stream of water which flows from the hydrotherapeutic receptacle to the mixing chamber. The combined streams exit the fitting together so as to increase its discharge flow rate.
Inventors
- 👤 Samuel Tobias
- 👤 William E. Treene
- 👤 George E. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:35
CPC Classifications
A; A61; A61H; A61H33/00; A61H33/60; A61H33/601; A61H33/6021; A61H33/6063; A61H33/02; A61H33/027; A61H33/6047
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
290 words
In combination, a hydrotherapeutic receptacle, said hydrotherapeutic receptacle having a wall and a body of water contained therein, and a jet fitting mounted in said wall of said hydrotherapeutic receptacle, said jet fitting comprising a mixing chamber located within and below said water contained in said hydrotherapeutic receptacle, said mixing chamber being substantially open along its top, bottom and sides; first inlet means for providing communication between said mixing chamber and said water contained in said hydrotherapeutic receptacle, said first inlet means substantially surrounding said mixing chamber so as to permit said water contained in said hydrotherapeutic receptacle to enter said mixing chamber through said top, bottom and sides thereof; second inlet means mounted in said wall of said hydrotherapeutic receptacle at a location below said water contained therein for providing communication between said mixing chamber and a source of pressurized water, said second inlet means including accelerating means for increasing the velocity of water being discharged into said mixing chamber from said second inlet means to thereby create a low pressure condition within said mixing chamber which is sufficient to suck said water contained in said hydrotherapeutic receptacle into said mixing chamber through said first inlet means and said top, bottom and sides of said mixing chamber, whereby said mixing chamber also functions as a suction chamber; discharging means located within and below said water contained in said hydrotherapeutic receptacle for discharging water into said hydrotherapeutic receptacle from said mixing chamber; and mounting means for mounting said discharging means from said second inlet means such that said mixing chamber is positioned therebetween, said mounting means having a flexibility sufficient to permit said discharging means to be deflectable in response to physical contact by a user inside the hydrotherapeutic receptacle.
Claim 2
Dependent Claim
290 words
In combination, a hydrotherapeutic receptacle, said hydrotherapeutic receptacle having a wall and a body of water contained therein, and a jet fitting mounted in said wall of said hydrotherapeutic receptacle, said jet fitting comprising a mixing chamber located within and below said water contained in said hydrotherapeutic receptacle, said mixing chamber being substantially open along its top, bottom and sides; first inlet means for providing communication between said mixing chamber and said water contained in said hydrotherapeutic receptacle, said first inlet means substantially surrounding said mixing chamber so as to permit said water contained in said hydrotherapeutic receptacle to enter said mixing chamber through said top, bottom and sides thereof; second inlet means mounted in said wall of said hydrotherapeutic receptacle at a location below said water contained therein for providing communication between said mixing chamber and a source of pressurized water, said second inlet means including accelerating means for increasing the velocity of water being discharged into said mixing chamber from said second inlet means to thereby create a low pressure condition within said mixing chamber which is sufficient to suck said water contained in said hydrotherapeutic receptacle into said mixing chamber through said first inlet means and said top, bottom and sides of said mixing chamber, whereby said mixing chamber also functions as a suction chamber; discharging means located within and below said water contained in said hydrotherapeutic receptacle for discharging water into said hydrotherapeutic receptacle from said mixing chamber; and mounting means for mounting said discharging means from said second inlet means such that said mixing chamber is positioned therebetween, said mounting means having a flexibility sufficient to permit said discharging means to be deflectable in response to physical contact by a user inside the hydrotherapeutic receptacle.
Claim 3
Dependent Claim
56 words
The combination of claim 1, wherein said second inlet means includes a directional ball adjustably mounted in the wall of the hydrotherapeutic receptacle and wherein said accelerating means includes a nozzle throat having a shape selected so as to constrict the flow of water passing through said directional ball on its way to said mixing chamber.
Claim 4
Dependent Claim
34 words
The combination of claim 1, wherein said second inlet means is positioned on one side of said mixing chamber and wherein said discharging means is positioned on an opposite side of said mixing chamber.
Claim 5
Dependent Claim
12 words
The combination of claim 3, wherein said discharging means includes a nozzle.
Claim 6
Dependent Claim
14 words
The combination of claim 4, wherein said first inlet means substantially surrounds said nozzle.
Claim 7
Dependent Claim
45 words
The combination of claim 1, wherein said fitting includes supplying means for supplying air to said mixing chamber in response to said low pressure condition created within said mixing chamber, whereby said discharging means discharges a mixture of water and air into the hydrotherapeutic receptacle.
Claim 8
Dependent Claim
38 words
The combination of claim 1, wherein said accelerating means includes a nozzle throat having a shape selected so as to constrict the flow of water passing through said second inlet means on its way to said mixing chamber.
Claim 9
Dependent Claim
45 words
The combination of claim 1, wherein water under pressure is supplied to said second inlet means by a pump and wherein said fitting permits the flow rate of water being discharged from said discharging means to be increased without increasing the capacity of the pump.
Claim 10
Dependent Claim
25 words
The combination of claim 1, wherein said mounting means includes at least one resilient member extending between said second inlet means and said discharging means.
Claim 11
Dependent Claim
36 words
The combination of claim 9, wherein said mounting means includes a plurality of resilient members spaced circumferentially about said mixing chamber, each of said resilient members extending between said second inlet means and said discharging means.
Claim 12
Dependent Claim
27 words
The combination of claim 10, wherein said first inlet means includes a plurality of openings, each opening being defined by an adjacent pair of said resilient members.
Claim 13
Dependent Claim
39 words
The combination of claim 11, wherein said discharging means includes a nozzle having a large-diameter end and a small-diameter end, said large-diameter end being arranged proximate to said second inlet means and being attached thereto by said resilient members.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-07-16 | 1994-01-15 | 1994-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-16 | 1998-01-15 | 1998-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-16 | 2002-01-15 | 2002-07-17 | $7700.00 | Window Closed / Lapsed |