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.

Date of Patent:
Jun. 28, 2022

Filed:

Jun. 12, 2019
Applicant:

Transportation Ip Holdings, Llp, Norwalk, CT (US);

Inventors:

Jingjun Zhang, Erie, PA (US);

Bret D. Worden, Erie, PA (US);

Ibrahim Kacar, Erie, PA (US);

John Frederick, Erie, PA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61F 5/38 (2006.01); B61L 3/00 (2006.01);
U.S. Cl.
CPC ...
B61F 5/383 (2013.01); B61F 5/386 (2013.01); B61L 3/006 (2013.01);
Abstract

A method for reducing slack in a linkage chain of a vehicle truck assembly is provided. In one example, the method includes responding to a request to de-lift a lift mechanism by reducing pressure in an actuator coupled to the lift mechanism, where the lift mechanism is configured to transfer a load from a first axle to a second axle of the vehicle during the de-lift, and during the de-lift, maintaining the pressure in the actuator at or above a threshold pressure to maintain tension in a weight transfer device of the lift mechanism.


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