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. 02, 2003
Filed:
Dec. 11, 2001
Jon Hovik, Faervik, NO;
Knut T. Siring, Arendal, NO;
Maritime Pusnes AS, Arendal, NO;
Abstract
A device for heaving in and paying out a chain by means of a hydraulic cylinder which by means of gripping devices engages the chain and lifts or lowers the chain a given distance while the locking device is deactivated. The structure comprises a frame provided with a lower locking device, a chain wheel guiding the chain, and an upper gripping device mounted in a bracket which is connected to the rod head of the hydraulic cylinder and the central axle of the chain wheel. The lower locking device is formed by two pawls which are pivotally mounted on separate pins. These pawls engage under a chain link and hold it securely. The upper gripping device is formed by at least one pawl which, together with a chain wheel having pockets for the chain, engages under a vertical chain link. In order for the gripping device to be able to lift or lower the chain, the hydraulic cylinder has a pivotal attachment supported in the frame, and the end of its piston rod has a head that can be supported on the same pivot pin as the pawl of the gripping device, or on a separate pivot pin.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile