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:
Dec. 07, 1999
Filed:
Aug. 07, 1997
Robert Cook, Salt Lake City, UT (US);
John W Thorum, Salt Lake City, UT (US);
Leonard J Wood, Wyee, AU;
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A lifting mechanism for a sedimentation tank is provided for vertically raising and lowering a rake assembly in such sedimentation tank. The lifting mechanism comprises one or more elongate members pivotally connected to certain structural elements of the assemblage, such as the rotary drive motor, rake assembly, column or bridge. The pivotal connections of the elongate members are positioned about a horizontal axis and are oriented to receive the torque forces imposed on the assemblage as the rake assembly rotates in the tank simultaneously with vertical lifting. The torque forces are translated into the pivotal connections and are able to counteract those forces to facilitate vertically raising and lowering the rake assembly while it is being rotated in the sedimentation tank.