| 摘要 |
The present invention is a combination pressure gauge and valve stem. Most unique about this invention is its ability to simultaneously fill a tire with fluid and measure the fluid pressure within the tire. The invention comprises generally a first housing and a second housing, a first biased valve and a second biased valve, and a fluid pressure gauge. Advantageoulsy, the invention further comprises a cover for protecting the second housing and the second biased valve. |
