Bell mouth, air supply assembly including the bell mouth, and air supply control system using the bell mouth
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 9, 2022
Grant Date -
Mar 11, 2021
app pub date -
Sep 4, 2020
filing date -
Sep 11, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A bell mouth includes an upstream body including an upstream-side opening formed to allow air introduced from an air supply duct to pass through and an upstream measurement portion connected with a differential-pressure acquisition device that uses pressure of the air in the upstream-side opening, in which the air supply duct guides the air into a water-heating device from the outside, a differential-pressure generation part that is located downstream of the upstream body with respect to a flow direction of the air and that has a structure that reduces the pressure of the air passing through the differential-pressure generation part, and a downstream body including a downstream-side opening formed to allow the air passing through the differential-pressure generation part to pass through and a downstream measurement portion connected with the differential-pressure acquisition device that obtains a difference between the pressure of the air passing through the downstream-side opening and facing toward a blower of the water-heating device and the pressure of the air in the upstream-side opening.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2020 Application Filing Year
- F24H Class
- 361 Applications Filed
- 214 Patents Issued To-Date
- 59.28 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F24H Class
- 0 % this patent is cited more than
- 3 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Feb 9, 2026 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 9, 2030 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 9, 2034 |
