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:
Feb. 04, 1986
Filed:
Feb. 09, 1983
Masayuki Sato, Komatsu, JP;
Kabushiki Kaisha Komatsu Seisakusho, Tokyo, JP;
Abstract
A detecting device for solenoid operated valve, the valve being located between a pilot fluid pressure supply source via a pilot operated directional control valve associated with the solenoid operated valve and a drain tank and adapted to be switched over to either a connecting position where an inlet port thereof for pressurized pilot fluid is allowed to communicate with a drain port thereof connected to the drain tank or a disconnecting position where the inlet port is disconnected from the drain port. The detecting device has a cylinder chamber connected to the inlet port of the solenoid operated valve and a plunger inserted partially into the cylinder chamber so as to form a pressure chamber therebetween, wherein the plunger is able to be pushed manually into the pressure chamber only when the solenoid operated valve is kept at the connecting position.