Air cleaner assembly
US7282077B2 · kind B2 · utility
47Cited by
21References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2004 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | Sep 3, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/31
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air cleaner that includes a first housing portion having a non-circular attachment fit. A second housing portion is attached to the first housing portion to define a filter space. A filter element includes a non-circular filter aperture that defines a perimeter that is completely defined by four equal arc length segments. The filter aperture is engageable with the attachment fit. The attachment fit and the filter aperture are sized to provide substantially equal contact pressure around the perimeter of the filter aperture when engaged with one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.