US4419775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Whirlpool bath
Assignee: Individual
•
Filing: 1981-08-10
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Granted: 1983-12-13
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Expires: 2001-08-10
Abstract
Abstract A whirlpool system has the air and water mixing systems adjacent to the pump. The air and water mixing system is connected to inlets and outlets within a tub by flexible pipes, preferably--or optionally by semi-flexible or rigid pipes. The outlets or inlets within the tub are preferably mounted in the tub from the inside of the tub.
Inventors
- 👤 Thomas P. Ebert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:47
CPC Classifications
A; A61; A61H; A61H33/00; A61H33/02; A61H2033/022; A61H33/60; A61H33/601; A61H33/6021; A61H33/6063; A61H33/6068; Y; Y10; Y10S; Y10S261/00; Y10S261/75
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
198 words
A whirlpool bath for installation in an in-place bathtub comprising said bathtub and a pump assembly, said pump assembly being connected to said bathtub through at least one flexible inlet pipe; said flexible inlet pipe serving to take water from said pump to said bathtub and to permit said installation in said in-place bathtub; and at least one flexible outlet pipe, said flexible outlet pipe serving to return water from said bathtub to said pump and said flexible inlet pipe and said flexible outlet pipe permitting said installation in said in-place bathtub; wherein: (a) said inlet pipe is connected at one end to an inlet means within said bathtub for the purpose of providing whirlpool action in said bathtub, and said inlet pipe is connected at the other end to said pump; (b) a water and air mixing means operatively situated between said pump and said inlet pipe, said water and air mixing means being connected to said pump and between said pump and said flexible inlet pipe--whereby said water and air mixing means combine with said flexible inlet pipe to provide whirlpool action; and (c) a recirculating means for returning water from said bathtub to said pump.
Claim 2
Dependent Claim
198 words
A whirlpool bath for installation in an in-place bathtub comprising said bathtub and a pump assembly, said pump assembly being connected to said bathtub through at least one flexible inlet pipe; said flexible inlet pipe serving to take water from said pump to said bathtub and to permit said installation in said in-place bathtub; and at least one flexible outlet pipe, said flexible outlet pipe serving to return water from said bathtub to said pump and said flexible inlet pipe and said flexible outlet pipe permitting said installation in said in-place bathtub; wherein: (a) said inlet pipe is connected at one end to an inlet means within said bathtub for the purpose of providing whirlpool action in said bathtub, and said inlet pipe is connected at the other end to said pump; (b) a water and air mixing means operatively situated between said pump and said inlet pipe, said water and air mixing means being connected to said pump and between said pump and said flexible inlet pipe--whereby said water and air mixing means combine with said flexible inlet pipe to provide whirlpool action; and (c) a recirculating means for returning water from said bathtub to said pump.
Claim 3
Dependent Claim
22 words
The whirlpool bath of claim 1 wherein said inlet means is secured to said tub by a fastening means inside said tub.
Claim 4
Dependent Claim
72 words
The whirlpool bath of claim 2 wherein said water and air mixing means comprises at least one inline venturi connected at one end to said inlet pipe and at the other end to an outlet divider, said outlet divider being operatively connected to said pump assembly; and an air intake connected to said venturi to permit air to pass into said venturi and mix with water to thereby provide the whirlpool action.
Claim 5
Dependent Claim
37 words
The whirlpool bath of claim 3 wherein said outlet pipe has a diameter up to twice the diameter of said inlet pipe; and said outlet means has a diameter up to twice that of said inlet means.
Claim 6
Dependent Claim
39 words
The whirlpool bath of claim 4 wherein said outlet pipe is connected to a return means mounted from inside the tub at one end thereof and to an intake means on said pump assembly at the other end thereof.
Claim 7
Dependent Claim
30 words
The whirlpool bath of claim 5 wherein said outlet pipe is connected to the pump inlet for the purposes of providing water to the pump to be mixed with air.
Claim 8
Dependent Claim
24 words
The whirlpool bath of claim 6 wherein said outlet means and said inlet means are mounted by means of screws from inside the tub.
Claim 9
Dependent Claim
71 words
The whirlpool bath of claim 7 wherein said inlet means comprises a flange mounted inside said tub, a rubber sealing means secured to said flange and positioned between said tub and said flange when said flange is secured to said tub, a tubular extension centrally located within said flange and passing through an aperture in said tub to be connected to said inlet pipe so that said whirlpool action is achieved.
Claim 10
Dependent Claim
31 words
The whirlpool bath of claim 8 wherein said outlet means is shaped similarly to said inlet means and is mounted in said tub in substantially similar fashion as said inlet means.
Claim 11
Dependent Claim
19 words
The whirlpool bath of claim 9 wherein said tub is porcelain and said screws are mounted in tapped holes.
Claim 12
Dependent Claim
31 words
The whirlpool bath of claim 9 wherein said tub is fiberglass and said screws are in threaded relation with at least one metal plate glued to an exterior of said tub.
Claim 13
Dependent Claim
27 words
The whirlpool bath of claim 9 said air intake is connected to a manual control means for adjusting the amount of air to be mixed with water.
Claim 14
Dependent Claim
22 words
The whirlpool bath of claim 9 wherein said air intake is connected to a blower means for feeding into said air intake.
Claim 15
Dependent Claim
14 words
The whirlpool bath of claim 9 wherein said divider has connections for four venturi.
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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) | 1986-12-12 | 1987-06-13 | 1987-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-12 | 1991-06-13 | 1991-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-12 | 1995-06-13 | 1995-12-13 | $7700.00 | Window Closed / Lapsed |