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:
Dec. 26, 2023

Filed:

Nov. 27, 2020
Applicant:

Multiquip Inc., Cypress, CA (US);

Inventors:

Eric Potter, Caldwell, ID (US);

Erick Del Real, Meridian, ID (US);

Kimball Anderson, Boise, ID (US);

Larry Jake Chapple, Boise, ID (US);

Assignee:

Multiquip, Inc., Cypress, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E04F 21/24 (2006.01); H02P 23/14 (2006.01); H02P 29/68 (2016.01); F03D 7/02 (2006.01); H02P 5/46 (2006.01); G05B 11/42 (2006.01);
U.S. Cl.
CPC ...
E04F 21/245 (2013.01); H02P 23/14 (2013.01); H02P 29/68 (2016.02); E04F 21/247 (2013.01); E04F 21/248 (2013.01); F03D 7/02 (2013.01); G05B 11/42 (2013.01); H02P 5/46 (2013.01);
Abstract

A method for thermal management of a power trowel executable by an on-board logic controller allows operation of the trowel in normal mode in which rotor speed is determined by manual control and in which a sensed temperature of the trowel lies below a high temperature setpoint. In response to the sensed temperature exceeding the high temperature setpoint, the controller switches operation of the power trowel from normal mode to thermal management mode in which a maximum rotor speed achievable by manual control is reduced by the controller in incremental steps to allow the trowel to cool. In response to the sensed temperature reaching a low temperature setpoint, the controller increases rotor speed in incremental steps, and returns operation to normal mode when a desired rotor speed is maintained for sufficient time during which the sensed temperature remains below the low temperature setpoint.


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