US3110281A - Extensible keet construction - Google Patents

Extensible keet construction Download PDF

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Publication number
US3110281A
US3110281A US194582A US19458262A US3110281A US 3110281 A US3110281 A US 3110281A US 194582 A US194582 A US 194582A US 19458262 A US19458262 A US 19458262A US 3110281 A US3110281 A US 3110281A
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United States
Prior art keywords
hull
keel
chamber
floats
construction
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Expired - Lifetime
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US194582A
Inventor
Lloyd P Buck
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Individual
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Priority to US194582A priority Critical patent/US3110281A/en
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Publication of US3110281A publication Critical patent/US3110281A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B41/00—Drop keels, e.g. centre boards or side boards ; Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B41/00—Drop keels, e.g. centre boards or side boards ; Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels
    • B63B2041/003—Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels
    • B63B2041/006—Telescopically collapsible keels

Description

Nov. 12, 1963 L. P. BUCK 3,llo,28l
ExTENSBLE KEEL CONSTRUCTION F11ed May 14, 1962

Claims (1)

1. IN COMBINATION WITH A FLOATABLE HULL HAVING A SEPARATE KEEL DISPOSED THEREBENEATH, AND INTERMEDIATE CONNECTING MEANS FOR VERTICALLY RAISING AND LOWERING THE KEEL TOWARD AND AWAY FROM THE HULL WHEN THE LATTER IS AFLOAT: A FLEXIBLE AND LONGITUDINALLY FOLDABLE, ENCIRCLING WALL MUTUALLY CONNECTING THE HULL AND KEEL, FORMING A CLOSED CHAMBER THEREBETWEEN, AND PRESENTING AN EXTERNAL STREAMLINED SURFACE (WHEN THE KEEL IS LOWERED) TO A BODY OF WATER WHICH FLOATS THE HULL, SAID CHAMBER HAVING APERTURE AND CLOSURE MEANS ADAPTED FOR SELECTIVE RECEPTION, RETENTION AND EXPULSION OF CHAMBER-FILLING FLUID, WHEREBY THE THUS-INFLATED CHAMBER MAY HAVE ITS FLEXIBLE WALL DISPOSED SUBSTANTIALLY RIGID AGAINST THE PRESSURE OF EXTERNAL WATER WHICH FLOATS SAID HULL.
US194582A 1962-05-14 1962-05-14 Extensible keet construction Expired - Lifetime US3110281A (en)

Priority Applications (1)

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US194582A US3110281A (en) 1962-05-14 1962-05-14 Extensible keet construction

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US194582A US3110281A (en) 1962-05-14 1962-05-14 Extensible keet construction

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US3110281A true US3110281A (en) 1963-11-12

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304898A (en) * 1964-03-30 1967-02-21 Joseph D Sainte-Claire Ship controls
US3371737A (en) * 1964-10-01 1968-03-05 Gen Dynamics Corp Controlled height aerodynamic and hydrodynamic baffles for air cushioned vehicles
US4297757A (en) * 1978-08-03 1981-11-03 Palemon Camu Oscar M Marine rescue capsule
FR2591184A1 (en) * 1985-12-09 1987-06-12 Guibernao Charles Externally raisable keel device for boats
US5038698A (en) * 1989-09-29 1991-08-13 Bic Corporation Daggerfin adjustable sailboard skeg
US5148761A (en) * 1989-09-29 1992-09-22 Bic Corporation Daggerfin adjustable sailboard skeg
FR2820396A1 (en) * 2001-02-06 2002-08-09 Philippe Baron D ADJUSTABLE Keel FOR SAILBOATS
US7146925B1 (en) * 2003-01-24 2006-12-12 Lockheed Martin Corporation Apparatus for varying vessel hull geometry and vessels made therewith
EP2055628A2 (en) * 2007-10-26 2009-05-06 Benito Misurale Hull provided with telescopic keel
US20090288586A1 (en) * 2007-02-08 2009-11-26 Baruh Bradford G Adjustable keel for a sailboat

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1082133A (en) * 1913-07-29 1913-12-23 Frank Olechnowicz Boat-equilibrator.
US1236158A (en) * 1917-02-05 1917-08-07 John L Garland Display-rack.
US2651454A (en) * 1948-06-21 1953-09-08 Bjurstrom Thure Hjalmar Foot pump
GB819916A (en) * 1956-02-20 1959-09-09 Walter Norman Kemp Telescopic keel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1082133A (en) * 1913-07-29 1913-12-23 Frank Olechnowicz Boat-equilibrator.
US1236158A (en) * 1917-02-05 1917-08-07 John L Garland Display-rack.
US2651454A (en) * 1948-06-21 1953-09-08 Bjurstrom Thure Hjalmar Foot pump
GB819916A (en) * 1956-02-20 1959-09-09 Walter Norman Kemp Telescopic keel

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304898A (en) * 1964-03-30 1967-02-21 Joseph D Sainte-Claire Ship controls
US3371737A (en) * 1964-10-01 1968-03-05 Gen Dynamics Corp Controlled height aerodynamic and hydrodynamic baffles for air cushioned vehicles
US4297757A (en) * 1978-08-03 1981-11-03 Palemon Camu Oscar M Marine rescue capsule
FR2591184A1 (en) * 1985-12-09 1987-06-12 Guibernao Charles Externally raisable keel device for boats
US5038698A (en) * 1989-09-29 1991-08-13 Bic Corporation Daggerfin adjustable sailboard skeg
US5148761A (en) * 1989-09-29 1992-09-22 Bic Corporation Daggerfin adjustable sailboard skeg
FR2820396A1 (en) * 2001-02-06 2002-08-09 Philippe Baron D ADJUSTABLE Keel FOR SAILBOATS
WO2002062657A1 (en) * 2001-02-06 2002-08-15 Philippe Baron D Adjustable keel for sailboats
US7146925B1 (en) * 2003-01-24 2006-12-12 Lockheed Martin Corporation Apparatus for varying vessel hull geometry and vessels made therewith
US20090288586A1 (en) * 2007-02-08 2009-11-26 Baruh Bradford G Adjustable keel for a sailboat
US20110297064A1 (en) * 2007-02-08 2011-12-08 Baruh Bradford G Adjustable keel for a sailboat
EP2055628A2 (en) * 2007-10-26 2009-05-06 Benito Misurale Hull provided with telescopic keel
EP2055628A3 (en) * 2007-10-26 2009-07-22 Benito Misurale Hull provided with telescopic keel

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