Ships – Spars – Gaffs – booms – etc.
Patent
1991-10-11
1994-03-08
Huppert, Michael S.
Ships
Spars
Gaffs, booms, etc.
114 392, B63B 3579
Patent
active
052918440
ABSTRACT:
A clew constructed from carbon fiber composite is provided for a sailboard boom, the clew having a pair of cylinders having longitudinal axes and connected together by a trapezoidal central flange having substantially equal non-parallel sides connected to the cylinders parallel to their axes to secure them in a predetermined relative angle. The crew further includes holes through the central flange and notches in the rear edge of the flange for attachment of a lanyard or tie line rope that loops through the holes, around sheaves on the sail and through the notches which secure the end of the lanyard while permitting it to quickly be released for adjustment of sail trim. The clew further comprises a spring pin slot transverse each cylinder that interfaces with a an aft spring pin in a telescoping adjustment tube, the slot facilitating adjustment of the tube within the arm of the boom because the slot allows rotation of the tube without removal from the clew.
REFERENCES:
patent: 859233 (1907-07-01), Lane
patent: 3105710 (1963-10-01), Borgman
patent: 3866257 (1975-02-01), Lansdale
patent: 4696248 (1987-09-01), Nedoluha
patent: 4825793 (1989-05-01), Attey
patent: 5095838 (1992-03-01), Smith
Murray's Marine Windsurfing 1989-1990 Catalog, pp. 5 (top picture) and 8 (center and bottom pictures).
Murray's Marine Windsurfing 1991 Catalog, p. 2 (center column, top, and right column, top).
Primes of California 1991 Catalog, p. 21 (picture second from bottom).
Windsurfing Magazine, Apr. 1991, p. 82 (bottom).
WindRider Magazine, Dec. 1989, pp. 53 (entire) and 103 (top right).
Brahan Thomas J.
Gulftech, Inc.
Huppert Michael S.
Manning Guy V.
LandOfFree
Clew for a sailboard boom does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Clew for a sailboard boom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clew for a sailboard boom will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-148221