US4436513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free-sail system sailboard simulator
Assignee: Individual
•
Filing: 1982-04-05
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Granted: 1984-03-13
•
Expires: 2002-04-05
Abstract
Abstract A safer simulator for instructing free-sail system sailboarding consisting of a low to the ground disc-shaped deck with non-clogging casters.
Inventors
- 👤 Kenneth S. Darby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:49
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/06; G09B9/066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
An improvement in the design of a simulator to be used to instruct sailing on a free-sail system sailboard consisting of two complete discs of plywood or other material to form a base and a deck, having a hull-shaped non-skid area on the upper disc and within the diameter of the upper disc, having a swivel joint mount on the hull area, and inverted casters mounted on the lower disc with a pivoting bearing in the center acting as an axis around which the upper disc rotates and having an adjustable dampener for regulating the ease at which a simulator rotates and a cylindrical shape guard protruding down from the upper disc to keep fingers away from the casters.
Claim 2
Dependent Claim
119 words
An improvement in the design of a simulator to be used to instruct sailing on a free-sail system sailboard consisting of two complete discs of plywood or other material to form a base and a deck, having a hull-shaped non-skid area on the upper disc and within the diameter of the upper disc, having a swivel joint mount on the hull area, and inverted casters mounted on the lower disc with a pivoting bearing in the center acting as an axis around which the upper disc rotates and having an adjustable dampener for regulating the ease at which a simulator rotates and a cylindrical shape guard protruding down from the upper disc to keep fingers away from the casters.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-13 | 1987-09-12 | 1988-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-13 | 1991-09-12 | 1992-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-13 | 1995-09-12 | 1996-03-13 | $7700.00 | Window Closed / Lapsed |