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:
Mar. 04, 1986
Filed:
Feb. 08, 1984
Chester G DuBois, Zion, IL (US);
Outboard Marine Corporation, Waukegan, IL (US);
Abstract
A marine propulsion device including a fluid pumping device comprising a first mechanism for pumping fluid comprising a pump housing defining a recess, a movable wall which is in the recess and which cooperates with the recess to define a variable volume fluid pumping chamber, a fluid inlet in communication with the fluid pumping chamber, a check valve in the fluid inlet permitting fluid flow into and preventing fluid flow from the fluid pumping chamber, a fluid outlet in communication with the fluid pumping chamber, a check valve in the fluid outlet preventing fluid flow into and permitting fluid flow from the fluid outlet, a spring for moving the movable wall in one direction, a solenoid mechanism comprising a plunger connected to the movable wall and a solenoid coil for moving the plunger and the movable wall in an opposite direction against the action of the spring, and a second mechanism connected to the movable wall for pumping fluid.