Water softener filter wrench system
US9272396B2 · kind B2 · utility
4Cited by
16References
9Claims
0Family size
Inventor
Key dates
| Filing date | Dec 19, 2011 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | May 20, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25G1/105
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In general, the invention is a wrench made of a heavy and rust-resistant steel, which is 7-gauge in a preferred embodiment, as well as zinc coated in a primary embodiment, formed to one of the water filter sizes, including but not limited to: SW1, SW2, SW3, SW5-a, 144880 BW-BC, C-shaped (open end) Universal style, S3072, HT-HTF, OW1, OW2, OW6. The handle is at least 1.5 times the head diameter for easy use and the head is fitted with the various water filter sizes. A plastic or rubber cover is used on the handle for grip and for installing directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.