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. 24, 1987
Filed:
Jun. 20, 1986
Hendrik Langejan, Krimpen a/d Lek, NL;
IHC Holland N.V., Papendrecht, NL;
Abstract
A hopper vessel for storing bulk material such as dredged material, has one or more holds. The holds in their bottom are provided with trap doors that open by moving downwardly below the bottom of the vessel. In shallow water, there is the risk that these trap doors, when moved downwardly, will contact the bottom or the material that is deposited from the hopper vessel on the bottom. Therefore, some of the trap doors in the hold are at a higher level in the closed position than the other trap doors. To discharge material, the higher trap doors are opened first; and after enough material has been discharged that the vessel rises sufficiently high in the water, only then are the lower trap doors moved to open position to complete the discharge of the material. The higher trap doors are provided at the ends of the hold. This allows adjusting the angle of the vessel if the bottom of the body of water is sloped.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile