Acid drain opening system
US4969491A · kind A · utility
24Cited by
15References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1989 |
| Grant date | Nov 13, 1990 |
| Priority date | — |
| Expiry date | Feb 28, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03C1/30
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system for administering acid to a clogged drain, and the method of using the system. The system includes a coupling to which a container of the acid can be threadedly secured. The coupling includes a piercing nipple, which penetrates a seal on the acid bottle. The nipple is hollow, and the acid passes from the bottle through the nipple and into a rigid, but arcuately deformable, tube that is connected to the coupling and is in fluid communication with the nipple. The tube is inserted into the clogged drain, until it is embedded in the clog. The acid is delivered directly to the clog, where it reacts with and dissolves the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.