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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.:

US 11168750 B1

PDFFull Text
Date of Patent:
Nov. 09, 2021

Filed:

Feb. 01, 2019

Rotor assembly for resolving incomplete gear shift of a rotory mixer

Applicant:

Caterpillar Paving Products Inc., Brooklyn Park, MN (US);

Inventors:

Brian J. Schlenker, Shoreview, MN (US);

Jason W. Muir, Andover, MN (US);

Ryan A. Enot, Dunlap, IL (US);

Jacob M. Saari, Otsego, MN (US);

Derek Nieuwsma, Loretto, MN (US);

Nathaniel S. Doy, Maple Grove, MN (US);

Lee M. Hogan, Champlin, MN (US);

Assignee:

Caterpillar Paving Products Inc., Brooklyn Park, MN (US);

Attorney:
Primary Examiner:

Mark A Manley

Int. Cl.
CPC ...
F16D 48/06 (2006.01); B01F 7/02 (2006.01); E01C 23/06 (2006.01); F16H 63/44 (2006.01); B01F 15/00 (2006.01); B01F 13/10 (2006.01);
U.S. Cl.
CPC ...
F16D 48/06 (2013.01); B01F 7/02 (2013.01); B01F 15/00201 (2013.01); B01F 15/00538 (2013.01); E01C 23/065 (2013.01); F16H 63/44 (2013.01); B01F 2013/1086 (2013.01); B01F 2015/00629 (2013.01); F16D 2500/1027 (2013.01); F16D 2500/1112 (2013.01); F16D 2500/70402 (2013.01); F16D 2500/70424 (2013.01); F16D 2500/7109 (2013.01);
Abstract

A rotor assembly for a rotary mixer is disclosed. The rotor assembly includes a main drive configured to rotatably drive the rotor assembly, a main drive clutch enclosed in a drivetrain housing of the main drive, an actuation valve operably coupled to the main drive clutch, the actuation valve configured to actuate the main drive clutch between at least a first position and a second position, a rotor drum, a rotor drive gearbox having an input and an output, the gearbox output operably coupled to the rotor drum, a main drive belt rotatably coupled to the main drive clutch and the rotor drive gear box input such that a rotation of the main drive clutch imparts a rotation on the rotor drive gear box, and a speed sensor operably coupled to the rotor drum, the speed sensor measuring a rotational speed of the gearbox and generating a rotor speed signal, wherein based on when the rotor speed signal is below a predetermined rotor speed threshold the actuation valve is activated to rotate the main drive clutch a predetermined amount between the first position and the second position.

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