Patent US3898948A successfully refreshed from Google Patents.
US3898948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mast handling
Assignee: Individual
•
Filing: 1974-06-24
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Granted: 1975-08-12
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Expires: 1994-06-24
Abstract
Abstract A safety-enhancing mast-handling arrangement for a catamaran or other sailboat with a dismountable mast. Detachable rigid steadying braces are pivotally secured at one end to the deck athwart the foot of the mast and at the opposite end are secured together in sliding engagement with the mast. With the boat supported on a trailer the mast is raised and lowered by taking up and paying out a line attached to the forestay of the mast, as by means of a winch mounted forward on an upright of the trailer.
Inventors
- 👤 Thomas R Huff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:53
CPC Classifications
B; B63; B63B; B63B15/00; B63B15/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
71 words
In a mast-handling arrangement for a sailboat with a dismountable mast having a longitudinal rope groove therein erupting to the exterior therealong, a laterally steadying rigid brace assembly pivotally and detachably attachable at a first end to the deck athwart the foot of the mast and also slidably and disengageably engageable at a second end to the mast and including at the second end a slider fitting within the rope groove.
Claim 2
Dependent Claim
71 words
In a mast-handling arrangement for a sailboat with a dismountable mast having a longitudinal rope groove therein erupting to the exterior therealong, a laterally steadying rigid brace assembly pivotally and detachably attachable at a first end to the deck athwart the foot of the mast and also slidably and disengageably engageable at a second end to the mast and including at the second end a slider fitting within the rope groove.
Claim 3
Dependent Claim
40 words
Mast-handling arrangement according to claim 1, wherein the sailboat is a catamaran having a forward lateral frame member with jib-sheet tracks secured thereto and wherein the brace assembly is secured detachably at the first end in the respective jib-sheet tracks.
Claim 4
Dependent Claim
70 words
Mast-handling arrangement according to claim 1, wherein the eruption of the rope groove is enlarged within a man''s reach from the foot of the mast, and via such enlargement the slider is engageable with the rope groove before the brace assembly is secured at the first end to the deck, and is disengageable from the rope groove after the brace assembly is detached at the first end from the deck.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |