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:
Nov. 11, 1980
Filed:
Feb. 14, 1979
Paul Fussner, Sindelfingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
To provide for effective sealing of the solenoid coil structure with respect to fluid, the flow of which is to be controlled, a sleeve with a closed bottom, preferably integral with the sleeve, is inserted in the coil, and is in gap-free engagement with a core portion extending into the opening of the solenoid coil, a plunger-type armature being movable within the sleeve. The outer portion of the sleeve is sealed to the housing, for example by a solder connection, so that the interior of the solenoid is separated in liquid-tight relationship from the interior of the sleeve to prevent contamination of the space containing the winding by fluid being controlled by the valve. The housing, at the outside, may be formed with a groove in which a sealing ring is located to seal the housing to a pump assembly with which the valve is to be used.