Car wash water brush handle
US8870487B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Sep 7, 2012 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Jul 12, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/9029
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A car wash water brush handle includes a wobble tube and a piston tube. The wobble tube includes an entrance hose fitting, a reinforcing hose, a flexible boot and an exit hose fitting. The piston tube includes a tube body, a piston, a piston rod, a compression spring, an exit reinforcing hose and an exit hose fitting. When water flows through the tube body, the piston rod is forced into entrance hose fitting through pressure against the piston. The piston rod prevents the flexible portion of the flexible boot from being damaged during operation. The water flows through the tube body at a pressure of 90 psi. A brush head is threaded onto the exit hose fitting. A water hose is threaded into one end of a hand grip tube and the entrance hose fitting is threaded into the other end of the hand grip tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.