US4706590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deck mounted lateral mast rake adjuster
Assignee: Individual
•
Filing: 1986-10-29
•
Granted: 1987-11-17
•
Expires: 2006-10-29
Abstract
Abstract A sailing vessel is disclosed in which a mast is pivotally connected to the hull at the lower end thereof and an athwartship structure is provided in the form of a support rigidly mounted to the hull and transverse thereto to guide the mast athwartship. The mast may be held in an upstanding attitute or an angular attitude by mechanical devices of lines or other adjusting means. Bringing the mast and the sail mounted thereon to a vertical attitude reduces the heeling moment that affects the vessel.
Inventors
- 👤 John G. Hoyt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:12
CPC Classifications
B; B63; B63B; B63B15/00; B63B15/0083; B63B2015/0016; B63B2015/005; B63B2015/0075
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
80 words
A sailing vessel having a hull, means to establish directional control of the hull, a mast, means pivotally connecting the mast to the hull at the lower end thereof, a sail detachably secured to the mast, a unitary athwartships structure spaced substantially above the lower end of the pivotal mast for the sole support of the mast both fore and aft and athwartships and means connected to the mast for altering the angle of the mast relative to the hull.
Claim 2
Dependent Claim
80 words
A sailing vessel having a hull, means to establish directional control of the hull, a mast, means pivotally connecting the mast to the hull at the lower end thereof, a sail detachably secured to the mast, a unitary athwartships structure spaced substantially above the lower end of the pivotal mast for the sole support of the mast both fore and aft and athwartships and means connected to the mast for altering the angle of the mast relative to the hull.
Claim 3
Dependent Claim
42 words
A sailing vessel as in claim 1 wherein the athwartship structure is a semi-circular support, said semi-circular support having a track mounted on an edge portion thereof, said mast having a collar, means coupling said collar via a slider to said track.
Claim 4
Dependent Claim
50 words
A sailing vessel as in claim 1 wherein the athwartship structure is a truncated sleeve with spaced walls extending laterally of the vessel and a slot is defined at the deck level of the vessel, said mast being pivoted to the hull at the bottom of the said spaced walls.
Claim 5
Dependent Claim
39 words
A sailing vessel as in claim 1 wherein the means connected to the mast for altering the angle of the mast consists of a pair of lines attached to the mast and leading to either side of the hull.
Claim 6
Dependent Claim
107 words
A sailing vessel having a hull, means to establish directional control of the hull, a mast, means pivotally connecting the mast to the hull at the lower end thereof, a sail detachably secured to the mast, an athwartships structure spaced above the pivotal mast for supporting the mast both fore and aft and athwartships, first and second sheave means mounted on said structure and first and second line means provided anchored to said structure, said each line means passing through one each sheave means to be attached to said mast whereby releasing one line and applying force to the other will pivot the mast relative to hull.
Claim 7
Dependent Claim
107 words
A sailing vessel having a hull, means to establish directional control of the hull, a mast, means pivotally connecting the mast to the hull at the lower end thereof, a sail detachably secured to the mast, an athwartships structure spaced above the pivotal mast for supporting the mast both fore and aft and athwartships, first and second sheave means mounted on said structure and first and second line means provided anchored to said structure, said each line means passing through one each sheave means to be attached to said mast whereby releasing one line and applying force to the other will pivot the mast relative to hull.
References Cited (Backward Citations)
US1916459A
Cited
US2353007A
Cited
US3487800A
Cited
US3610190A
Cited
US3972300A
Cited
US4345535A
Cited
US4501215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-16 | 1991-05-18 | 1991-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-16 | 1995-05-18 | 1995-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-16 | 1999-05-18 | 1999-11-17 | $7700.00 | Window Closed / Lapsed |