Dynamically balanced suction relief for hydrotherapy tubs and spas
US4602391A · kind A · utility
56Cited by
11References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1985 |
| Grant date | Jul 29, 1986 |
| Priority date | — |
| Expiry date | Oct 17, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/75
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dynamically balanced suction relief is provided for a hydrotherapy tub or spa in which a controlled amount of water under pressure is supplied from the water pump to an air inlet duct to maintain a column of water in the air duct under normal conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.