US3890656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Whirlpool jet for bathtubs
Assignee: Individual
•
Filing: 1974-05-16
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Granted: 1975-06-24
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Expires: 1994-05-16
Abstract
Abstract A whirlpool jet assembly for bathtubs comprising a plurality of housings spaced around the outside of a bathtub. Each housing has a water inlet opening connected to a water supply pipe and an air inlet opening connected to an air supply pipe. These openings are connected to a mixing chamber in which air is mixed with the water by venturi action as it flows into the bathtub through a water outlet having a jet outlet control. The device is compact and no fittings are required.
Inventors
- 👤 Cleo L Mathis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:35
CPC Classifications
A; A61; A61H; A61H33/00; A61H33/02; A61H33/027; F; F04; F04D; F04D35/00; A61H33/60; A61H33/601; A61H33/6021; A61H33/6063; Y; Y10; Y10S; Y10S261/00; Y10S261/75
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
182 words
A whirlpool jet assembly for bathtubs comprising a plurality of housings spaced around the exterior of a bathtub, each of said housings having a transversely directed water inlet opening and an adjacent transversely directed air inlet opening disposed above said water inlet opening, a horizontally directed water supply pipe extending around the exterior of said bathtub and directly connected to each of said water inlet openings without fittings, a horizontally directed air supply pipe extending around the exterior of said bathtub and directly connected to each of said air inlet openings without fittings, each of said housings having a horizontally directed water passage extending from said water inlet opening to a mixing chamber within said housing, a venturi air passage extending vertically from said air inlet opening into said mixing chamber, whereby the movement of water into and through said chamber is speeded by venturi action, a horizontally directed water outlet extending between said mixing chamber and the interior of said bathtub, and a jet outlet control mounted in the outer end of said water outlet for directing water into said bathtub.
Claim 2
Dependent Claim
182 words
A whirlpool jet assembly for bathtubs comprising a plurality of housings spaced around the exterior of a bathtub, each of said housings having a transversely directed water inlet opening and an adjacent transversely directed air inlet opening disposed above said water inlet opening, a horizontally directed water supply pipe extending around the exterior of said bathtub and directly connected to each of said water inlet openings without fittings, a horizontally directed air supply pipe extending around the exterior of said bathtub and directly connected to each of said air inlet openings without fittings, each of said housings having a horizontally directed water passage extending from said water inlet opening to a mixing chamber within said housing, a venturi air passage extending vertically from said air inlet opening into said mixing chamber, whereby the movement of water into and through said chamber is speeded by venturi action, a horizontally directed water outlet extending between said mixing chamber and the interior of said bathtub, and a jet outlet control mounted in the outer end of said water outlet for directing water into said bathtub.
Claim 3
Dependent Claim
55 words
The structure described in claim 1, and means for recirculating water from said bathtub through said water supply pipe, the bottom of said water inlet opening of each of said housings beind disposed above the bottom of said mixing chamber, whereby said water supply pipe is completely drained into said mixing chamber after each use.
Claim 4
Dependent Claim
62 words
The structure described in claim 2, each of said water and air inlet openings having a divider disposed adjacent the midportion thereof, said dividers providing a pair of abutments on opposite sides thereof against which the ends of a pair of sections of said water and air supply pipes fit, said sections being cemented within said openings to form a permanent connection.
Claim 5
Dependent Claim
31 words
The structure described in claim 3, said housings being compact and extending outwardly from the outer periphery of said bathtub approximately the same distance as said water and air supply pipes.
Claim 6
Dependent Claim
30 words
The structure described in claim 4, said water and air inlet openings, dividers, passages and mixing chambers all comprising integral portions of a unitary housing molded of rigid plastic material.
References Cited (Backward Citations)
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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) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |