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US Patent 6868723 - Thermal anemometry mass flow measurement apparatus and method
US Patent Issued on March 22, 2005
Estimated Patent Expiration Date:
May 16, 2023Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
May 16, 2023Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractA mass flow measurement apparatus including a flow path defined by a tubular side wall, a probe extending through the side wall into the flow path so that a first portion of the probe is located in the flow path and a second portion of the probe, extends out of the side wall, a heater element secured to the probe, and a seal preventing fluid flowing through the flow path from contacting the heater element.Other References
| InventorsAssigneeApplicationNo. 10440371 filed on 05/16/2003US Classes:73/204.22, With sensor housing73/866.5PROBE OR PROBE MOUNTINGField of Search73/202.5, Thermal sensing of flow73/204.11, Thermal type73/204.22, With sensor housing73/204.23, Having particular electrical heating, cooling, or thermal sensing element73/861.42, Using differential pressure73/861.52, With restriction73/866.5PROBE OR PROBE MOUNTINGExaminersPrimary: Lefkowitz, EdwardAssistant: Mack, Corey D. Attorney, Agent or FirmUS Patent References4016758, Thermal gauge probeIssued on: 04/12/1977 Inventor: Taylor5515295, Methods and systems for fluid identification and flow rate determination Issued on: 05/07/1996 Inventor: Wang6023969, Flow modulated mass flow sensor Issued on: 02/15/2000 Inventor: Feller6642807Coaxial probe for high temperature and high pressure applications Issued on: 11/04/2003 Inventor: Gard International ClassG01F001/66 |
