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:
Nov. 19, 1996
Filed:
Nov. 21, 1994
Richard Blackmer, Scotia, NY (US);
Other;
Abstract
Tackle is provided to enable control of sail outhaul with one hand, while holding a windsurfing sail rig with the other. To avoid the use of jam cleats, pulleys and bungies, 3:1 ring cinches are used. A 3:1 ring cinch assembly is attached to right and left booms of the rig's wishbone boom. These are then attached to the ends of a clew line, which is part of 2:1 tackle from the boomtail to the outhaul grommet at the clew of the sail. The cinch line has four parts: (1) an anchor-part for a ring and a finder tab, (2) a pull-part for increasing sail outhaul, (3) a release-part for decreasing sail outhaul and (4) a cinch-part for pinching two cinch rings against the release-part while sharing the outhaul load with the pull and release parts. Through rigging geometry, the ring cinch pinch provides a self-energizing lock on the cinch line such that no slip can occur without a positive pull on the pull-part or release part. A tug line connects the ring cinches to a loop-cleat which, in turn, connects the 3:1 cinch assembly to the clew line.