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:
Aug. 29, 2000
Filed:
Apr. 15, 1998
Curt E Schindler, Centerville, OH (US);
Marc A Richard, Springboro, OH (US);
Donald E Graham, Dayton, OH (US);
Dayton-Phoenix Group, Inc., Dayton, OH (US);
Abstract
A locomotive cab heating system having a plurality of separately actuated heating units housed in a supply air duct and connected to a microcontroller. Preferably, the system includes a high temperature shutdown thermostat. The microcontroller is equipped with memory storing a program that is configured to control the microcontroller to turn on and off a predetermined number of the heating units responsive to temperature readings received from the temperature sensor, thereby maintaining air temperature in the duct within a selected range, regardless of fan speed and air flow rate. By controlling the number of heating units in operation at any given time, the heating system of the present invention controls the heat delivered to a locomotive cab more effectively, thereby ensuring the comfort of the occupants of the cab. The locomotive cab heating system of the present invention is designed to be easily and inexpensively retrofitted to preexisting heating systems.