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. 04, 2000
Filed:
Jun. 30, 1997
James A Babinski, Saginaw, MI (US);
Thomson Saginaw Ball Screw Company, L.L.C., Saginaw, MI (US);
Abstract
A loaded vertically operating ball screw and nut actuator system, including methods of constructing it, for synchronously moving load systems connected to it in opposite vertical directions has a vertically disposed rotatably driven ball screw device with screw sections of opposite hand. A complemental recirculating ball nut discretely connected to each of the load systems is threaded on each screw section to form ball receiving raceways for trains of load bearing balls which cause the ball nuts to move in opposing directions upon rotation of the screw in either direction. The load systems move in counterbalanced relation under the influence of gravity. A mount system for the upper and lower ends of the screw permits an off-axis adjustment in axial orientation of the screw to compensate for load misalignment problems.