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:
Aug. 27, 2002
Filed:
May. 01, 2000
Ian Gillis, Alberta, CA;
Daniel P. Lupien, Alberta, CA;
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
An actuator for an orienting device for orienting a borehole apparatus in a borehole and an orienting device comprised of the actuator, wherein the orienting device is comprised of an orienting mechanism which is actuated by longitudinal movement. The actuator is comprised of a housing having a first end and a second end and a fluid passageway extending through the housing from the first end to the second end. Further, a longitudinally reciprocable piston, positioned within and providing a first partial obstruction of the fluid passageway, engages with the orienting mechanism such that longitudinal movement of the piston actuates the orienting mechanism. Finally, a flow restrictor, positioned within and providing a second partial obstruction of the fluid passageway, is associated with the piston such that the first partial obstruction is longitudinally aligned with the second partial obstruction for a portion of a longitudinal range of travel of the piston to provide a combined obstruction of the fluid passageway.