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. 05, 2016
Filed:
Oct. 21, 2011
Andreas Geppert, Lahr, DE;
Jochen Kullick, Offenburg, DE;
Andreas Geppert, Lahr, DE;
Jochen Kullick, Offenburg, DE;
Parker-Hannifin Corporation, Cleveland, OH (US);
Abstract
An electromechanical linear drive having a housing and a piston rod that passes through a housing end cover, and is carried by a spindle nut arranged longitudinally displaceably in a housing interior space. The spindle nut engages the motor-driven threaded spindle such that it is displaceable back and forth in the housing interior space by rotary motion of the spindle. A lubrication nipple is accessible on an outer side of the housing, and at least one lubrication passage extends from the nipple and opens to a stop surface located in the housing interior space, which stop surface forms an end stop for motion of the spindle nut. At least one lubrication conduit leads to lubrication sites of the spindle nut and is arranged in the spindle nut so that when the spindle nut is in abutment against the stop surface, the lubrication conduit is joined to the housing-side lubrication passage.