Pressurized tank sprayer having lid seal
US8205808B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2008 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | May 16, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B9/0816
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A pressurized tank sprayer includes a base tank including a neck and a mouth. A lid having a top portion and a depending skirt is positioned upon the tank. Threads are provided on the neck of the tank and engage threads on the depending skirt of the lid in order to secure the lid to the tank. The threads include locking features that prevent the lid from becoming forcibly detached from the tank during removal of the lid if excess pressure remains in the tank. An annular seal is seated in the lid and provides a seal between the tank and the lid. The annular seal includes an annular sealing surface and a concave interior surface. The annular sealing surface contacts the interior surface of the tank while the concave interior surface is exposed to the interior of the tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.