Spa jet yielding increased air entrainment rates
US7950077B2 · kind B2 · utility
8Cited by
20References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2006 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | Mar 25, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61H33/6063
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved spa nozzle that is capable of entraining high air flow rates from the surrounding environment, said nozzle of the type having a water input conduit of diameter D, a flow output conduit having entry and diameter of DID, a transition conduit having a diameter of ID and a length of PL, and an air entrainment conduit, and wherein the following ratios are defined to describe the relative geometry of the nozzle: α=PL/(DID−ID), β=DID/ID and γ=D/ID, the improvement comprising: the water input, transition and output conduits being configured such that α is in the range of 1.3-5 and β is>1.9.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.