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:
Aug. 05, 1980
Filed:
Jun. 12, 1978
Applicant:
Inventors:
Robert K Jefferies, Houston, TX (US);
Gary L Egbert, Houston, TX (US);
Assignee:
NL Industries, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63B / ;
U.S. Cl.
CPC ...
114218 ; 24130 ; 254376 ;
Abstract
A bollard used in vessel mooring and like operations includes a bollard drum around which the line or hawser is wrapped several times to reduce the line tension at the free length behind the drum. A cleat is provided for holding fast the free length of the hawser at the reduced tension. The hawser may be quickly released from the bollard during emergency situations by simultaneously unlatching the cleat and releasing a lock on the bollard allowing it to rotate as the hawser is pulled off and finally lifted out of the cleat.