Patent US3575124A successfully refreshed from Google Patents.
US3575124A
Expired / Lapsed
US
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Kickup rudder apparatus for boats
Assignee: Coast Catamaran Corp
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Filing: 1969-06-16
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Granted: 1971-04-13
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Expires: 1989-06-16
Abstract
Abstract A kickup rudder apparatus for a boat to be sailed off a beach. The rudder is movable between a lowered position, a dangling intermediate position, and a raised position. As a boat is sailed onto a beach the rudder automatically kicks up from its lowered position into its dangling position when the rudder engages the ground. As the boat is sailed away from a beach the rudder may be moved from its raised position through its intermediate position to its lowered position as it moves into deeper water. Control of rudder movement between the three positions is effected solely through manipulation of the tiller.
Inventors
- 👤 Hobard L Alter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:00
CPC Classifications
B; B63; B63H; B63H25/00; B63H25/06; B63H25/38; B63H25/382; B63B; B63B35/00; B63B2035/009; B63H2025/384; B63H2025/385
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
168 words
A kickup rudder apparatus for a boat to be sailed off a beach, said apparatus, comprising: a rudder movable between a lower position; an intermediate position and a raised position; a rudder support secured to the stern of said boat for pivotal movement about a vertically extending axis; a horizontal pivot pin interconnecting the upper portion of said rudder and said rudder support; a tiller; a tiller support secured to said tiller, the rear portion of said tiller support being pivotally attached to the upper portion of said rudder; first releasable lock means interposed between said rudder support and said tiller support that when engaged retain said rudder in its raised position, and said rudder falling into its intermediate position when said lock means is disengaged; and second releasable lock means interposed between said rudder support and said tiller support that when engaged retain said rudder in its lower position, said second lock means being automatically disengaged by rearward movement of said rudder away from its lower position.
Claim 2
Dependent Claim
168 words
A kickup rudder apparatus for a boat to be sailed off a beach, said apparatus, comprising: a rudder movable between a lower position; an intermediate position and a raised position; a rudder support secured to the stern of said boat for pivotal movement about a vertically extending axis; a horizontal pivot pin interconnecting the upper portion of said rudder and said rudder support; a tiller; a tiller support secured to said tiller, the rear portion of said tiller support being pivotally attached to the upper portion of said rudder; first releasable lock means interposed between said rudder support and said tiller support that when engaged retain said rudder in its raised position, and said rudder falling into its intermediate position when said lock means is disengaged; and second releasable lock means interposed between said rudder support and said tiller support that when engaged retain said rudder in its lower position, said second lock means being automatically disengaged by rearward movement of said rudder away from its lower position.
Claim 3
Dependent Claim
20 words
Apparatus as set forth in claim 1 wherein said first lock means is disengaged by upward movement of said tiller.
Claim 4
Dependent Claim
20 words
Apparatus as set forth in claim 1 wherein said second lock means is engaged by manual movement of said tiller.
Claim 5
Dependent Claim
31 words
Apparatus as set forth in claim 1 wherein said first lock means includes a hook formed on said rudder support that is received by a recess formed on said tiller support.
Claim 6
Dependent Claim
35 words
Apparatus as set forth in claim 1 wherein said second lock means includes a spring-urged plunger carried by one of said supports engageable with a notched latch dog carried by the other of said supports.
Claim 7
Dependent Claim
31 words
Apparatus as set forth in claim 2 wherein said first lock means includes a hook formed on said rudder support that is received by a recess formed on said tiller support.
Claim 8
Dependent Claim
35 words
Apparatus as set forth in claim 3 wherein said second lock means includes a spring-urged plunger carried by one of said supports engageable with a notched latch dog carried by the other of said supports.
References Cited (Backward Citations)
US2992623A
Cited
US3199485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |