Patent US3905321A successfully refreshed from Google Patents.
US3905321A
Expired / Lapsed
US
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Sail batten
Assignee: Individual
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Filing: 1974-03-22
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Granted: 1975-09-16
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Expires: 1994-03-22
Abstract
Abstract A flattened tubular body of stiff shape, retentive and somewhat flexible and resilient material is provided. The interior width of the tubular body is several times the interior height thereof and an elongated stiffening rod or member of a greater transverse thickness than the internal height of the body is telescoped into the body midway between the opposite side edges thereof in a manner spreading the central portions of the greater width sides of the tubular body apart. End caps complemental to and telescoped over the ends of the tubular body are provided. The caps may be cemented to the corresponding ends of the body. In a first form of the invention the tubular body and stiffening rod taper toward one end of the body and in a second form of the body uniform thickness is maintained throughout and the elongated stiffening member comprises two or more parallel spaced apart and relatively braced stiffening rods telescoped into the tubular body centrally intermediate its opposite side edges.
Inventors
- 👤 Jr Joseph A Blythe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:09
CPC Classifications
B; B63; B63H; B63H9/00; B63H9/04; B63H9/06; B63H9/065
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
92 words
A sail batten including a flattened tubular body of stiff, shape retentive and somewhat flexible and resilient material, the interior width of said body being several times the interior height of said body and an elongated stiffening structure of a thickness greater than the internal height of said body telescoped into and extending substantially the full length of said body and positioned mid-way between and spaced from the opposite side portions of said body with said stiffening structure spreading the central portions of the greater width sides of said tubular body apart.
Claim 2
Dependent Claim
92 words
A sail batten including a flattened tubular body of stiff, shape retentive and somewhat flexible and resilient material, the interior width of said body being several times the interior height of said body and an elongated stiffening structure of a thickness greater than the internal height of said body telescoped into and extending substantially the full length of said body and positioned mid-way between and spaced from the opposite side portions of said body with said stiffening structure spreading the central portions of the greater width sides of said tubular body apart.
Claim 3
Dependent Claim
26 words
The combination of claim 1 wherein said stiffening strcuture tapers toward one end thereof and said tubular body also tapers in height toward the corresponding end.
Claim 4
Dependent Claim
36 words
The combination of claim 2 wherein said stiffening structure includes at least two generally straight parallel members having spacing and bracing elements secured and extending between corresponding portions of said parallel members at points spaced therealong.
Claim 5
Dependent Claim
21 words
The combination of claim 1 wherein said tubular body and stiffening structure are substantially constant in cross-sectional dimension throughout their length.
Claim 6
Dependent Claim
25 words
The combination of claim 1 including end caps complemental to and supported from the opposite ends of said tubular body closing the opposite ends thereof.
Claim 7
Dependent Claim
26 words
The combination of claim 5 wherein said end caps define cup members opening toward each other and telescoped over the corresponding ends of said tubular body.
Claim 8
Dependent Claim
36 words
The combination of claim 1 wherein said stiffening structure includes two or more generally straight parallel members having spacing and bracing elements secured and extending between corresponding portions of said parallel members at points spaced therealong.
Claim 9
Dependent Claim
21 words
The combination of claim 7 wherein said tubular body and stiffening structure are substantially constant in cross-sectional dimension throughout their length.
Claim 10
Dependent Claim
25 words
The combination of claim 7 including end caps complemental to and supported from the opposite ends of said tubular body closing the opposite ends thereof.
Claim 11
Dependent Claim
26 words
The combination of claim 9 wherein said end caps define cup members opening toward each other and telescoped over the corresponding ends of said tubular body.
Claim 12
Dependent Claim
89 words
A sail batten including a flattened tubular body of stiff, shape retentive and somewhat flexible and resilient material, the interior width of said body being several times the interior height of said body, an elongated stiffening structure of a thickness greater than the internal height of said body telescoped into the latter mid-way between the opposite side edges thereof in a manner spreading the central portions of the greater width sides of said tubular body apart, and end caps complemental to and telescoped over the ends of said body.
Claim 13
Dependent Claim
89 words
A sail batten including a flattened tubular body of stiff, shape retentive and somewhat flexible and resilient material, the interior width of said body being several times the interior height of said body, an elongated stiffening structure of a thickness greater than the internal height of said body telescoped into the latter mid-way between the opposite side edges thereof in a manner spreading the central portions of the greater width sides of said tubular body apart, and end caps complemental to and telescoped over the ends of said body.
Claim 14
Dependent Claim
30 words
The combination of claim 11 wherein the opposite ends of said stiffening member project into the opposite end portions of said tubular body over which said end caps are telescoped.
Claim 15
Dependent Claim
83 words
A sail batten including a flattened tubular body of stiff, shape retentive and somewhat flexible and resilient material, the interior width of said body being several time the interior height of said body, an elongated stiffening structure of a thickness greater than the internal height of said body telescoped into the latter mid-way between the opposite side edges thereof in a manner spreading the central portions of the greater width sides of said tubular body apart, said stiffening structure comprising a cylindrical rod.
Claim 16
Dependent Claim
83 words
A sail batten including a flattened tubular body of stiff, shape retentive and somewhat flexible and resilient material, the interior width of said body being several time the interior height of said body, an elongated stiffening structure of a thickness greater than the internal height of said body telescoped into the latter mid-way between the opposite side edges thereof in a manner spreading the central portions of the greater width sides of said tubular body apart, said stiffening structure comprising a cylindrical rod.
References Cited (Backward Citations)
US2608172A
Cited
US3581698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |