Patent US4223631A successfully refreshed from Google Patents.
US4223631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sailing indicator
Assignee: Individual
•
Filing: 1978-05-01
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Granted: 1980-09-23
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Expires: 1998-05-01
Abstract
Abstract The sailing indicator assembly is constructed to space the tail from the sail and to maximize the force effect of a light wind to keep a wet tail from sticking to the sail. More particularly, the inner end of the tail is mounted to a spacer member, the inner end of which is connected to a base. The base is in the form of a wedge having an upwardly slanted surface in a downwind direction, driving the wind outwardly and angularly against the inner portion of the tail. The base is preferably at least as wide as the tail. The spacer member is constructed to collapse if anything engages it, such as when the sail is folded or rolled for storage. More particularly, the spacer member is elongated to provide the spacing function and is flexible to permit collapse thereof.
Inventors
- 👤 Clarke M. Poad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:54
CPC Classifications
G; G01; G01P; G01P13/00; G01P13/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
99 words
A sailing indicator for attachment to the sail of a boat, said indicator comprising: (a) a base for securement to a sail, (b) a spacing member extending outwardly from said base, (c) and an elongated tail connected at its inner end portion with the outer end portion of said spacing member, (d) said base forming means to lift the moving air away from the said sail and direct the air toward said tail during sailing, (e) said air lifting means comprising an upper face on said base, said face being angled outwardly from said base in a downwind direction.
Claim 2
Dependent Claim
99 words
A sailing indicator for attachment to the sail of a boat, said indicator comprising: (a) a base for securement to a sail, (b) a spacing member extending outwardly from said base, (c) and an elongated tail connected at its inner end portion with the outer end portion of said spacing member, (d) said base forming means to lift the moving air away from the said sail and direct the air toward said tail during sailing, (e) said air lifting means comprising an upper face on said base, said face being angled outwardly from said base in a downwind direction.
Claim 3
Dependent Claim
106 words
A sailing indicator for attachment to the sail of a boat, said indicator comprising: (a) a wedge-shaped base for securement to a sail and with said base having an upper face angled outwardly from the base in a downwind direction at an angle of inclination of 10°-20°, (b) a tubular spacing member extending outwardly from said base and with said member being collapsible toward the said face of said base, (c) and an elongated tail, the inner end of which is secured within the outer end portion of said tubular spacing member, (d) said base being at least as wide as the width of said tail.
Claim 4
Dependent Claim
106 words
A sailing indicator for attachment to the sail of a boat, said indicator comprising: (a) a wedge-shaped base for securement to a sail and with said base having an upper face angled outwardly from the base in a downwind direction at an angle of inclination of 10°-20°, (b) a tubular spacing member extending outwardly from said base and with said member being collapsible toward the said face of said base, (c) and an elongated tail, the inner end of which is secured within the outer end portion of said tubular spacing member, (d) said base being at least as wide as the width of said tail.
Claim 5
Dependent Claim
11 words
The sailing indicator of claim 1 wherein said base is wedge-shaped.
Claim 6
Dependent Claim
25 words
The sailing indicator of claims 1 or 3 wherein the angle of inclination of said face relative to the sail is between 10° and 20°.
Claim 7
Dependent Claim
23 words
The sailing indicator of claims 1 or 3 wherein the angle of inclination of said face relative to the sail is about 15°.
Claim 8
Dependent Claim
22 words
The sailing indicator of claims 1 or 3 wherein said face is at least as wide as the width of said tail.
Claim 9
Dependent Claim
29 words
The sailing indicator of claims 1 or 3 wherein said spacing member is collapsible toward the said face of said base upon engagement of said member by an object.
Claim 10
Dependent Claim
22 words
The sailing indicator of claims 1 or 3 wherein said spacing member is tubular and said tail is secured within said member.
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) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |