| Patent Number |
Title Of Patent |
Date Issued |
| RE38686 |
Smoke generating apparatus |
January 11, 2005 |
| A smoke generating apparatus includes a combustion chamber having an air flow inlet and an air flow outlet. A helical heating element is disposed in the combustion chamber. The helical heating element has a central flow axis. A smoke generating fluid injection tube is positioned along th |
| 7387014 |
Vacuum generator for vacuum-decay leak testing the evaporative emissions system of a motor vehic |
June 17, 2008 |
| A compact (e.g., hand held) vacuum generator having particular application for creating a vacuum within the evaporative emissions system (e.g., a gas tank) of a motor vehicle so that a vacuum-decay test can be performed to test the system for leaks while mitigating the hazardous effects |
| 6526808 |
Smoke and clean air generating machine for detecting presence and location of leaks in a fluid s |
March 4, 2003 |
| A smoke and clean air generating machine for detecting the presence and location of leaks in a fluid system (e.g. the evaporative or brake system of a motor vehicle). A source of gas (e.g. air or nitrogen) under pressure is delivered to a smoke generating apparatus or to a flow meter by |
| 6439031 |
Method for detecting leaks in a fluid system |
August 27, 2002 |
| A method for detecting leaks in a fluid system such as, but not limited to, the evaporative or air brake system of a motor vehicle. A smoke generating machine produces a supply of smoke to be delivered to the system under test. At least some of a mixture of oil and fluorescent dye is hea |
| 6392227 |
Liquid for producing marker vapor, a method of producing marker vapor and a method of inspection |
May 21, 2002 |
| A liquid for producing a marker vapor includes a fluorescent substance in solution in a carrier liquid. The fluorescent substance has a first vaporization temperature range at which the fluorescent substance vaporizes. The carrier liquid has a second vaporization temperature range at |
