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:
Jul. 23, 2013
Filed:
Sep. 01, 2010
Paulo Mello, Sapucaia do Sul, BR;
Eduardo Perdomini Lara, Porto Alegre, BR;
Dalnei Tomedi, Porto Alegra, BR;
Paulo Mello, Sapucaia do Sul, BR;
Eduardo Perdomini Lara, Porto Alegre, BR;
Dalnei Tomedi, Porto Alegra, BR;
Weatherford Industria E Comecio Ltda., Rio de Janiero, BR;
Abstract
An auxiliary braking device can be used for wellhead applications having a progressive cavity pump. A housing of the device independently mounts on the pump's existing drive using a mounting member, and an adapter on the housing connects to a rotatable drive shaft of the pump. A hydraulic motor on the housing has a motor shaft mechanically coupled to the adapter by a plurality of gears or the like. A control valve couples to the hydraulic motor and operates to control communication of hydraulic fluid through the hydraulic motor, thereby controlling rotation of the rotatable shaft. A controller and electric sensors can operated the control valve in response to the sensed rotation of the shaft. Alternatively, mechanical mechanisms can operate the control valve in response to the rotation of the drive shaft.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile