System for draining and recovering coolant from a motor vehicle cooling system
US6135136A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 1997 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Oct 2, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6123
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An apparatus for recovering coolant from a motor vehicle includes an inlet tube with a sharply pointed end for penetrating a wall of a hose of the vehicle cooling system. The inlet tube is connected to an inlet of a closed container. An outlet of the closed container is coupled to a suction port of a venturi that also has a fluid inlet for attachment to a source of a pressurized fluid, and a fluid outlet. The flow of fluid from the fluid inlet to the fluid outlet creates a suction at the suction port which draws coolant from the cooling system of a vehicle into the closed container. A muffler is provided at output from the venturi to reduce noise produced by fluid flowing form that output. Specific structures for the venturi and the muffler are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.