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:
Jul. 05, 1988
Filed:
Aug. 14, 1986
Yoshio Matusita, Kanagawa, JP;
Takeshi Mochizuki, Kanagawa, JP;
Yukimitu Watanabe, Kanagawa, JP;
Ikuya Shiraishi, Kanagawa, JP;
Katsumasa Iwasawa, Kanagawa, JP;
Kazuki Terafuji, Hiroshima, JP;
Iwata Air Compressor Mfg. Co., Ltd., Tokyo, JP;
Abstract
A spray gun with an automatic valve opening control means which enables remote and stepless control of a paint spraying operation has atomizing means provided at the front end thereof, a paint valve member which enables adjustment of the amount of paint jetted out from the atomizing means, and a spray pattern adjusting valve member adapted to adjust the spray pattern by controlling the amount of compressed air jetted out from the atomizing means. A threaded slider mechanism is provided on the proximal portion of a valve body of either the paint valve member or the spray pattern adjusting valve member (or both). A servo motor and an encoder are connected to a drive screw member of the threaded slider mechanism. The encoder is adapted to detect the rotational position of the servo motor and output a controlled variable of the motor, and the servo motor is controlled in response to an external signal.