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:
Sep. 21, 1982
Filed:
Nov. 03, 1980
Applicant:
Inventor:
Seymour Vall, New York, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H / ;
U.S. Cl.
CPC ...
114102 ; 114205 ;
Abstract
For a sailboat, a constant force spring reel is used to balance the force in a control line used to establish the angle of the sail with respect to the boat. The spring exerts an essentially constant force on the control line whereby the sail is allowed to move to leeward or windward in response to wind changes to maintain an essentially constant sail force on, and angle of heel of, the boat.