The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 1985
Filed:
Dec. 10, 1981
Daniel P Hearn, Richardson, TX (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
The level or tilt angle of the surface of a bed of solids in the round portion of an elongated rotatable chamber is determined by directing a collimated gamma ray beam transversely through the chamber to a scintillation radioactive count rate detector. The chamber is either horizontal or inclined from horizontal at an angle of less than 30.degree.. At least three equal length transversely spaced apart radioactive scans or measurements with the source located at three different points are required. The scans must lie in approximately the same transverse plane and one of the scans must be transversely located between the other two scans. Best results are obtained when at least four scans are taken with the transverse plane of the scans perpendicular to the longitudinal axis of the chamber. The method will usually be applied at a number of axial points under dynamic conditions so that the contour of the bed may be plotted.