IP Library Granted Patent US 7,918,175
Granted Patent B2
US 7,918,175 · App. 12/235,589 · Granted Apr 5, 2011

Mast track extension and pre-feeder for mainsail furling

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Quick Facts
Patent No.
US 7,918,175
App. No.
12/235,589
Granted
Apr 5, 2011
Kind
B2
Abstract

A flexible mast track extension for use on sail boat mast permitting the luff of a sail bent to the mast to deflect from the line of the mast and facilitate the extension or retraction of a sail from a furling apparatus.

Claims (9)

1. A flexible mast track extension for use on a sail boat, the flexible mast track extension comprising:

a first end mounted to a rear of a mast adjacent a lower entry to a luff holding arrangement of the mast configured to receive a luff of a mainsail;

a second end extending downward from the first end and defining a lower end positioned adjacent a boom within which is contained the mainsail furled within a boom furling apparatus;

the lower end of the flexible mast extension defining a pre-feeder to ease transition of the luff of the mainsail into a luff holding arrangement of the flexible mast extension and the first end of the flexible mast extension aligning the luff of the mainsail for entry into the luff holding arrangement of the mast;

the lower end of the flexible mast extension deflectable sideways relative to the first end of the flexible mast extension while maintaining the luff holding arrangement of the flexible mast extension in alignment with the luff holding arrangement of the mast.

2. The flexible mast track extension of claim 1 , further comprising at least two members extending from the first end to the second end, and a plurality of blocks positioned along the members, the blocks cooperating to define a luff holding arrangement aligned with the luff holding arrangement of the mast, a space defined between each of the blocks with a resilient deformable spacer positioned between the blocks.

3. The flexible mast track extension of claim 2 , further comprising a central member with a compression fitting adjacent the second end to hold the blocks in position on the central member and a pair of members extending generally parallel to the central member.

4. The flexible mast extension of claim 1 , wherein an outer surface of the flexible mast extension defines a pair of opposing grooves configured to receive a sliding car to which a portion of the luff of a sail is attached.

5. The flexible mast extension of claim 1 , wherein the flexible mast extension includes a luff groove.

Assignments (2)
PATENT SECURITY AGREEMENT Recorded Sep 16, 2020
From: HARKEN INCORPORATED
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 053789/0291 →
SECURITY AGREEMENT Recorded Jul 7, 2010
From: HARKEN, INCORPORATED
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 024640/0395 →