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:
Apr. 30, 2013
Filed:
Nov. 05, 2008
Ronald N. Seger, Prior Lake, MN (US);
Ronald N. Seger, Prior Lake, MN (US);
Phillips & Temro Industries Inc., Eden Prairie, MN (US);
Abstract
A control system comprises a solid-state switch, a mechanical current interrupting device, and a control module. The solid-state switch is connected in series with a power source and an intake air heater. The mechanical current interrupting device is connected in series with the power source and the solid-state switch. The control module selectively closes the solid-state switch to provide power to the intake air heater. The control module also causes the mechanical current interrupting device to mechanically interrupt current flow to the intake air heater when a voltage of the intake air heater is outside of a desired range.