Maryland's Defense Patent Database

The defense community in Maryland is an R&D powerhouse.

Use this database to see the innovative patents that are poised for commercialization.

Pendulation control system with active rider block tagline system for shipboard cranes

Patent image

The inventive control system, as typically embodied, includes sensing mechanisms, a computational processing unit, and an algorithm for processing inputs and generating outputs to control a rotating pedestal crane equipped with a Rider Block Tagline System (RBTS). Typical inventive embodiments uniquely feature a processing algorithm that distributes various control modes that operate not only through the crane's hoisting, luffing, and slewing mechanisms but also through the crane's RBTS; the inventive algorithm thereby effectuates motion compensation and pendulation damping with respect to the crane. This algorithmic allocation of control represents a more efficient crane anti-pendulation methodology than conventional methodologies; in particular, the inventive methodology exerts significantly greater control of the payload while exacting significantly less burden upon the hoisting, luffing, and slewing mechanisms of the crane.

Agostini, Michael J.; Bird III, Dexter J.; Green, Jeffrey P.; Leban, Frank A.; Parker, Gordon G.
Patent Number: 
Technical domain: 
Handling and Transportation
FIle Date: 
Grant Date: 
Grant time: 
462 days
Grant time percentile rank: 
Claim count percentile rank: 
Citations percentile rank: 
'Cited by' percentile rank: