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:
Dec. 29, 1981
Filed:
Dec. 19, 1979
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
The solenoid actuated valve device is comprised of a housing of magnetic material having a radially disposed inlet and at least one axially disposed outlet in communication with the interior of a hollow magnetic core disposed within the body. An annular bobbin having a solenoid coil wound thereon is slidably mounted on the core and is normally biased into a position closing at least one elongated radially extending opening through the core. Permanent magnets are secured to the interior of the body in such a manner that the lines of flux intersect the solenoid coil at right angles thereto. Two springs normally bias the bobbin to the closed position and extend between one end of the bobbin and a spring support member disposed adjacent one end of the body. Each spring is connected to one end of the coil and to a respective electrical terminal for supplying electric current to the solenoid coil and the position of the spring support is adjustable relative to the end of the housing by means of a screw threadably extending through the end of the housing into engagement with the spring holder to vary the spring force acting on the bobbin. The connection between the two springs and the ends of the solenoid coil are insulated from the bobbin to prevent a short circuit which would deprive the solenoid coil of electric current. The connections between the two springs and the terminals are also encapsulated with insulating material subsequent to the adjustment of the spring holder relative to the end of the housing.