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. 16, 2016
Filed:
Oct. 17, 2013
Trinity Industrial Corp., Aichi-ken, Toyota-shi, JP;
Toyota Jidosha Kabushika Kaisha, Aichi-ken, Toyota-shi, JP;
Masayuki Umeki, Toyota, JP;
Akihiro Kawamoto, Toyota, JP;
Shigeki Fujiwara, Toyota, JP;
Isamu Yamasaki, Toyota, JP;
Yasunori Asada, Okazaki, JP;
Kimiyoshi Nagai, Shizuoka-ken, JP;
TRINITY INDUSTRIAL CORP., Aichi-Ken, Toyota-Shi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken, Toyota-Shi, JP;
Abstract
An electrostatic coating apparatus includes: a spray gun configured to spray a coating material onto a coating object; a voltage application device configured to apply a high voltage to the spray gun; and a current measurement device configured to measure electric current flowing through the spray gun. When the spray gun, which is in a state of not spraying the coating material onto the coating object and is under application of the high voltage from the voltage application device, is located at a distance from the coating object, the electric current flowing through the spray gun is measured by the current measurement device. A grounded state of the coating object is checked, based on the measured electric current. This shortens the time required for checking the grounded state, while allowing for downsizing and simplified configuration of production equipment and reduction of equipment cost.