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:
Oct. 24, 2017
Filed:
Aug. 09, 2016
Alan L. Johnson, Barrington, IL (US);
Alan L. Johnson, Barrington, IL (US);
Other;
Abstract
A safety light system on an excavator or parked vehicle that is manually operated by the excavator operator. The unit is typically controlled by a single button located in the excavator cab. The excavator operator presses the button. A green LED, or other green light, projects a green beam of light toward the rear of the truck. This signals the truck driver that he can begin backing toward the excavator. At a predetermined distance, the excavator operator again pushes the button. The unit switches to an orange light. Finally, in a final position, the excavator operator again presses the button to project a red light. As the truck driver backs toward the excavator, he first sees green, then orange and finally red. Upon seeing red, he knows to stop backing. A fourth push can again project a green light signaling a safe condition for drive-away.