Suction fittings for whirlpool bathtubs, and the like
US4676894A · kind A · utility
Inventors
Key dates
| Filing date | Feb 14, 1986 |
| Grant date | Jun 30, 1987 |
| Priority date | — |
| Expiry date | Feb 14, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S4/14
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
It has been found that by mounting a suction cover onto the periphery only of a suction interconnection member placed between the suction cover and the recirculating piping, and by carefully placing the hole pattern and size of the individual holes thereon, that a substantial increase in the allowable flow rate gpm for a given safe suction of below five pounds will be produced, as required by the IAPMO standards. Furthermore, it has been found that the suction cover should provide as clear and unobstructed a path to flow, to the internal bore of the suction interconnect member, as possible, and, to this end, the suction cover itself is completely free of any internal flow obstructions, as is the flow path to the internal bore of the suction interconnect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.