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:
Jan. 02, 2001
Filed:
Nov. 22, 1999
Stephen Harlow Davies, Telford, GB;
Lucas Industries Limited, , GB;
Abstract
An actuator comprising a drive arrangement arranged to rotate a first drive member, the first member being in screw-threaded engagement with a second member, the second member being in screw-threaded engagement with a third, output member, wherein the screw-threaded engagement between the first and second members is such that, when the first member rotates at a given speed relative to the second member, the second member moves axially relative to the first member at a first speed, the screw-threaded engagement between the second and third members being such that, when the second member rotates at the said given speed relative to the third member, the third member moves axially relative to the second member at a second, higher speed. The invention also resides in an aircraft engine thrust reverser system utilizing one or more of the above actuators for deploying cowls of the system.