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:
May. 14, 2024
Filed:
Apr. 22, 2022
Caterpillar Inc., Peoria, IL (US);
Satish Nutakki, Chicago, IL (US);
Kurt Steven Goslovich, Naperville, IL (US);
Ananda Sudhakar Ponnusamy, Naperville, IL (US);
Christopher John Demick, Wake Forest, NC (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
The pulldown apparatus may comprise a main stage and a secondary stage. The main stage may comprise a cylinder, a main head, a main gland, a piston and a main rod. The cylinder defines a chamber and includes a first end and a second end. The main gland and the piston is disposed in the chamber. The main rod is disposed in the chamber between the piston and the second end. The secondary stage includes a secondary head, a secondary gland, a secondary rod and a flange. The secondary gland is disposed in the chamber. The secondary rod is coupled to the flange. The flange is coupled to the main stage and disposed inside the cylinder between the piston and the secondary rod. The cylinder is slidable over the main rod, the piston and the secondary rod.