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. 04, 1990
Filed:
Sep. 30, 1988
Applicant:
Inventor:
Thomas E Archibald, Norton, MA (US);
Assignee:
EG&G International, Inc., Wellesley, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63B / ; B63G / ;
U.S. Cl.
CPC ...
114244 ; 114254 ; 114312 ;
Abstract
This invention relates to a recoverable tethered platform system and to a tethered platform for use therewith. One end of a tether line is retained at a surface station while the majority of the line is initially mounted on a mandrel in the platform and is drawn from this mandrel as the platform descends. This permits more rapid descent of a platform since there are substantially no line drag forces to overcome during descent. During recovery, the line can be wrapped on a mandrel which is the same as the mandrel in the platform and this rewound mandrel may then be substituted for the empty mandrel in the platform for redeployment.