Spa filter installation method and means
US4533476A · kind A · utility
25Cited by
14References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 25, 1984 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | May 25, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S4/09
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Spa recirculation water filter installation having an upwardly, inwardly open recess in the plastic spa water reservoir molded in a similar recess in a female mold. Water outlet fittings in opposite walls of the recess connected in a T-manner to a recirculation water pump. A filter having in each end a fitting interengaging with the water outlet fittings to secure the filter in place. A compression spring in one filter end fitting to be compressed during engagement and disengagement of the filter end fittings with the water outlet fittings. A cover over the filter installation with flanges secured to the filter end fittings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.