Airless reversible spray tip
US6390386B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2001 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Jun 7, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B15/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved reversible airless spray tip inhibits dripping, spitting, and undesirable paint accumulation on the spray guard, while improving safety. A positioning detent on the spray tip carrier handle snaps positively into place when a nozzle carrier is rotated into spray position, indicating that the tip is properly positioned for spraying. A spray guard with airfoil-like cross-members protects the user from injury while they inhibit turbulence and prevent paint accumulation. An improved piston seal has a slot-like fluid passage, which is preferably substantially rectangular in cross section. A rearward end of the piston seal is sealed by a resilient ring compressed directly against the face of an attached spray gun. An improved tip retainer is expanded by swaging after insertion, which forces a lip into a mating slot. The tip retainer also has an expanded chamber which diffuses reverse fluid flow for safety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.