Debris Filter Sensor
US-2015369717-A1 · Dec 24, 2015 · US
Debris filter sensor
US9707501B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9707501-B2 |
| Application number | US-201715423114-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 2, 2017 |
| Priority date | Jun 20, 2014 |
| Publication date | Jul 18, 2017 |
| Grant date | Jul 18, 2017 |
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Abstract
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In one embodiment, a piezoelectric device is positioned adjacent to a debris fence. A resonant frequency detection circuit connects with the piezoelectric device. The resonant frequency of the piezoelectric device is responsive to debris adjacent to the debris fence.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: filtering, with a filter, air for a networked computer, the filter being in a first plane; establishing a resonance of a piezoelectric sensor adjacent to the filter, the piezoelectric sensor having a largest surface forming a second plane different than the first plane, all of the largest surface being non-parallel with the first plane; measuring a frequency of the resonance; and indicating an amount of dust on the filter as a func…
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- B01D46/0086Primary
Operations & Transport · mapped topic
Physics · mapped topic
Physics · mapped topic
Operations & Transport · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9707501B2 cover?
- In one embodiment, a piezoelectric device is positioned adjacent to a debris fence. A resonant frequency detection circuit connects with the piezoelectric device. The resonant frequency of the piezoelectric device is responsive to debris adjacent to the debris fence.
- Who is the assignee on this patent?
- Cisco Tech Inc
- What technology area does this patent fall under?
- Primary CPC classification B01D46/0086. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jul 18 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).