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:
Mar. 03, 2015
Filed:
Sep. 14, 2012
G. Alexis Arzoumanidis, Glenview, IL (US);
Charles Meade Spellman, Chicago, IL (US);
Vishaal B. Verma, Evanston, IL (US);
G. Alexis Arzoumanidis, Glenview, IL (US);
Charles Meade Spellman, Chicago, IL (US);
Vishaal B. Verma, Evanston, IL (US);
Psylotech, Evanston, IL (US);
Abstract
A load frame assembly including a frame assembly, a servomotor, an actuator, a first crosshead assembly, a second crosshead assembly, a load frame and a displacement sensor. The servomotor is coupled to the frame and includes a control system. The actuator is coupled to the first crosshead assembly and provides for moving the first crosshead assembly relative to the frame assembly. The actuator comprises a ball screw assembly having a ball screw and a ball screw nut. The load frame is coupled to one of the crosshead assemblies. The displacement sensor is associated with the frame assembly and is configured to measure displacement by the crossheads relative to the frame assembly.