Bizarre Patents
Smoking Cessation Lighter and Method
A lighter for tobacco products suppresses the urge to smoke by operant conditioning.
PatentStorm News
Make the Most of PatentStorm
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest patents by subscribing to an RSS feed.
Got questions? Ask a Patent Expert!
Registered users: Manage your profile, comments and alerts.
US Patent 4510436 - Dielectric measuring systems
US Patent Issued on April 9, 1985
Estimated Patent Expiration Date:
July 15, 2002Estimated 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:
July 15, 2002Estimated 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 capacitive transducer which comprises a pair of joined-together thin-film capacitors and a fluid-impervious container. The container may be filled with a standard solution of known composition. One of the two thin-film capacitors is immersed in the standard solution inside the container while the other is situated outside the container. The entire transducer may be immersed in a sample, and the capacitance of the outside capacitor, which is dependent on the dielectric constant of the sample, may be compared with that of the inside capacitor after the standard solution has reached thermal equilibrium with the sample. | InventorAssigneeApplicationNo. 06/399126 filed on 07/15/1982US Classes:324/690, Including a probe type structure324/672, By comparison or difference circuit324/684, With compensation means73/304CCapacitativeExaminersPrimary: Krawczewicz, Stanley T.Assistant: Solis, Jose M. Attorney, Agent or FirmUS Patent References3215931, 3774237, 3774238, 3986110, Water depth measuring deviceIssued on: 10/12/1976 Inventor: Overall , et al.4266188Method and apparatus for measuring a component in a flow stream Issued on: 05/05/1981 Inventor: Thompson International ClassG01R 27/26 (20060101) |
