Patent US3579996A successfully refreshed from Google Patents.
US3579996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable boat ramp
Assignee: Individual
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Filing: 1969-09-05
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Granted: 1971-05-25
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Expires: 1989-09-05
Abstract
Abstract A portable boat ramp for beaching or launching small boats which eliminates the need to drag such boats across a sandy or rocky beach with resulting damage to the hull. The ramp may be conveniently carried manually and is capable of being quickly adjusted between an extended operative position and a folded position for storage or transportation. Adjustable bolsters are provided for engaging hull sides of different configurations and cooperate with a stabilizing bar which is disposed therebeneath to provide a stable support for a boat while supported on the ramp.
Inventors
- 👤 Jerry W Edson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:34
CPC Classifications
B; B63; B63C; B63C5/00; B63C5/02; B63C2005/022
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
154 words
A portable boat ramp comprising an elongated rigid keel bar having upwardly offset turned back ends, keel engaging members supported by said bar ends and adapted to be engaged by a boat keel, an elongated rigid stabilizer bar, means connecting an intermediate portion of a stabilizer bar to the upperside of the intermediate portion of a stabilizer bar to the upperside of the intermediate portion of the keel bar for positioning the stabilizer bar in an operative position crosswise of the keel bar or in an inoperative position lengthwise of the keel bar, elongated rigid bolsters disposed on and lengthwise of the ends of said stabilizer bar, means swingably connecting inner ends of the bolsters to the stabilizing bar for vertical swinging movement, and brace members adjustably connecting the bolsters to the stabilizer bar for supporting the bolsters at different angles above the bar ends for engagement with the sides of the boat hull.
Claim 2
Dependent Claim
154 words
A portable boat ramp comprising an elongated rigid keel bar having upwardly offset turned back ends, keel engaging members supported by said bar ends and adapted to be engaged by a boat keel, an elongated rigid stabilizer bar, means connecting an intermediate portion of a stabilizer bar to the upperside of the intermediate portion of a stabilizer bar to the upperside of the intermediate portion of the keel bar for positioning the stabilizer bar in an operative position crosswise of the keel bar or in an inoperative position lengthwise of the keel bar, elongated rigid bolsters disposed on and lengthwise of the ends of said stabilizer bar, means swingably connecting inner ends of the bolsters to the stabilizing bar for vertical swinging movement, and brace members adjustably connecting the bolsters to the stabilizer bar for supporting the bolsters at different angles above the bar ends for engagement with the sides of the boat hull.
Claim 3
Dependent Claim
37 words
A portable boat ramp as in claim 1, said stabilizer bar being of a length to fit under said turned back ends when the stabilizer bar is disposed in an inoperative position longitudinally of the keel bar.
Claim 4
Dependent Claim
69 words
A portable boat ramp as in claim 2, said brace members being swingably connected to the bolsters to assume folded positions between the bolsters and the stabilizer bar when the bolsters are disposed in inoperative positions above and substantially parallel to the stabilizer bar, and said bolsters being of lengths to fit under the turned back ends of the keel bar in the inoperative position of the stabilizer bar.
Claim 5
Dependent Claim
30 words
A portable boat ramp as in claim 1, and means for securing the stabilizer bar immovably to the keel bar in either the operative or inoperative position of the ramp.
Claim 6
Dependent Claim
54 words
A portable boat ramp as in claim 4, said means connecting the stabilizer bar to the keel bar comprising a nut and bolt fastening, and means cooperating with said nut and bolt fastening for retaining the stabilizer bar against turning movement relative to the keel bar in either the operative or inoperative position thereof.
Claim 7
Dependent Claim
26 words
A portable boat ramp as in claim 5, and posts extending between the keel bar and its turned back ends for bracing said turned back ends.
Claim 8
Dependent Claim
23 words
A portable boat ramp as in claim 1, and reinforcing sill members secured to and extending along the underside of the keel bar.
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |