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. 12, 1991
Filed:
Mar. 08, 1990
Francis R Schultz, Woodridge, IL (US);
Salco Products Inc., Romeoville, IL (US);
Abstract
A vented hatch cover for an enclosed vessel having a cover body sized to overlie and cover a hatch opening defined by an upstanding coaming. A pair of air passages are defined by the cover body and a pair of hoods connected thereto. The hoods define air inlet opening and a plenum which communicates with air outlet openings in the interior of the cover body. The air passages permit air flow in sufficient volume to vent the vessel and to empty the vessel by high speed vacuum unloading. A filter is removably retained on the hoods in the air inlet openings. A filter screen on the interior of the cover prevents contamination of the air passages from the inside. A latching arm provides downward pressure on the hatch when in a sealing position and the capability of pivoting the hatch cover together with the latching arm when it is moved. The cover is floatingly engaged in the arm.