US4073254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sailing mast for sailing boards
Assignee: Individual
•
Filing: 1976-07-02
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Granted: 1978-02-14
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Expires: 1996-07-02
Abstract
Abstract In a sailing board having a tiltable and rotatable mast which is held by the user during sailing and is supported on the board by a base fitting, a lower portion of the mast adjoining the base fitting is flexible and is bridged by a resilient mounting.
Inventors
- 👤 Hannes Marker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:24
CPC Classifications
B; B63; B63B; B63B32/00; B63B32/68; B63H; B63H8/00; B63H8/20; B63H8/24
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
111 words
A sailing mast for sailing boards which can be manually tilted and rotated during sailing, comprising a mast having a flexible lower portion, support means for supporting said mast on the sailing board comprising a mast foot, a resilient mounting means for interconnecting said mast to said mast foot, wherein said flexible lower portion comprises a row of superposed annular discs wherein the apertures of said discs define a passage, and wherein said discs converge towards the outside, said resilient mounting means comprises a rope, said rope extending through the passage and connected to the adjoining mast portion at its one end and to the mast foot at its other end.
Claim 2
Dependent Claim
111 words
A sailing mast for sailing boards which can be manually tilted and rotated during sailing, comprising a mast having a flexible lower portion, support means for supporting said mast on the sailing board comprising a mast foot, a resilient mounting means for interconnecting said mast to said mast foot, wherein said flexible lower portion comprises a row of superposed annular discs wherein the apertures of said discs define a passage, and wherein said discs converge towards the outside, said resilient mounting means comprises a rope, said rope extending through the passage and connected to the adjoining mast portion at its one end and to the mast foot at its other end.
Claim 3
Dependent Claim
14 words
A sailing mast according to claim 1, wherein said rope comprises an elastic material.
Claim 4
Dependent Claim
72 words
A sailing mast according to claim 1, wherein said mast is hollow at the portion adjoining said flexible lower portion and wherein said rope comprises a substantially inelastic material, the upper end of said rope extending into the mast hollow portion and carrying a nipple, a closure member rigidly connected to the mast through which the rope enters the hollow portion of said mast, and a helical compression spring surrounding the rope.
Claim 5
Dependent Claim
20 words
A sailing mast according to claim 3, wherein said helical compression spring is supported on the nipple by a nut.
Claim 6
Dependent Claim
32 words
A sailing mast according to claim 1, wherein said annular discs comprise a central projection on one side and a complementary central recess on the other side to provide for positive interengagement.
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) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |