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:
Sep. 26, 1989
Filed:
Nov. 08, 1988
Martin M Gram, St. Louis Park, MN (US);
Richard E Bearden, Arden Hills, MN (US);
MTS Systems Corporation, Eden Prairie, MN (US);
Abstract
A mechanical screw drive loading test frame has a crosshead on the frame with a grip supported from the crosshead, and a second grip for gripping a second end of a specimen on which a second grip is connected to an axially movable shaft which is ragidly supported and guided for axial movement for loading the specimen. The support for the second grip is in a second rigid cross member positioned very close to the second grip to prevent lateral loads from loading the specimen transversly. The loading shaft is loaded from below the rigid cross member by a screw through a coupling and mounting arrangement which isolates load caused by misalignment in the drive screw or drive motor from the movable shaft and second grip.