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. 09, 2014
Filed:
Nov. 17, 2011
Gregory A. Seljestad, Wamego, KS (US);
Gregory A. Seljestad, Wamego, KS (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A thumb assembly mountable to a stick of an excavator is provided. The thumb assembly comprises a base member having at least a first joint location, a thumb member pivotally connected to the base member, and first and second linkage members pivotally connected at their first ends to the thumb member and the joint location respectively. The linkage members are connected by a knee joint at their second ends such that they are foldable relative to each other between a working position and a storage position in which the thumb member extends close to the base member. The knee joint permits both relative rotation and relative sliding of the first and second linkage members so that the thumb assembly can be moved between the working position and the storage position without disconnecting the linkage members from the thumb member and the joint location on the base member.