US3019755A - Hydrofoil deck extension - Google Patents

Hydrofoil deck extension Download PDF

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Publication number
US3019755A
US3019755A US45613A US4561360A US3019755A US 3019755 A US3019755 A US 3019755A US 45613 A US45613 A US 45613A US 4561360 A US4561360 A US 4561360A US 3019755 A US3019755 A US 3019755A
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platform
craft
hydrofoil
deck extension
boats
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US45613A
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Diamond Jack
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/18Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type
    • B63B1/20Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type having more than one planing surface

Definitions

  • the present invention relates generally to attachments for boats and more particularly to extensions, particularly for outboard motor boats, which facilitate trolling from or fishing from the rear of such boats, thereby extending the utility of the boats.
  • outboard motor boats are not particularly suited to trolling, and moreover, they often have relatively little deck space. Additional-1y, such boats are light-weight, in general, and therefore cannot support outboard deck extensions which might be employable as platforms from which fishing or trolling can be carried on.
  • FIGURE 1 is a side view of a platform according to the invention, secured to a small outboard motor driven craft;
  • FIGURE 2 is a rear view of the platform of FIG- URE 1;
  • FIGURE 3 is a top view of the platform of FIGURES 1 and 2;
  • FIGURE 4 is a view in perspective of a hydrofoil employed in the system of FIGURES 1 to 3, inclusive.
  • the reference numeral denotes the stern of a small craft, having an outboard motor 11 mounted thereon in any conventional fashion, as by means of brackets 12.
  • pontoon hydrofoils 17 Bolted to the rear bulkhead 13 of the stern 10 by means of a transverse strap 14 and suitable brackets 15 and bolts 16, are provided a pair of pontoon hydrofoils 17.
  • the latter include hollow and therefore buoyant tanks, shaped to introduce minimum hydrodynamic resistance, and having stabilizer planes 18, the forward edges of which tend to ride out of water when the craft attains sutficient speed.
  • the buoyant tanks therefore provide upward lift both because of their inherent buoyancy and because of hydrofoil or hydroplane action, and the former even while the drive craft is stationary.
  • a horizontal platform P extends rearwardly of the stern 10 and is provided with suitable railings 19 for safety and with rigid brackets 20, extending between the hydrofoil elements 17 and the rearward underside of the platform to support the latter on the hydrofoils.
  • the forward end of the platform is secured to the rear bulkhead 13 by bolts 21 or in any other convenient fashion.
  • the drive shaft casing 22 and the propeller 23 of the main craft extend into the water, having a level 24, between the pontoon-hydrofoils 17, a suitable opening 25 being provided in the platform P to accommodate the motor itself and to permit its rotation in order to enable maneuvering of the craft.
  • the platform P is essentially a continuation of the stern 10 so that it is easy to pass from one to the other, and complete safety is assured, for men, women and children, even while the craft is in rapid motion.
  • the hydrofoils 17 can be so designed that substantially none of the weight of the platform or the people thereon must be borne by the craft itself.
  • the latter need only supply traction, requirement for which is minimized by the streamlined shape of the hydrofoils and by the hydroplane action deriving from the planes 18, and the shapes of the pontoon hulls themselves.
  • a small water craft including an outboard motor driven boat, a rearwardly extending platform secured to said boat, and hydroplane fioats secured in supporting relation to said platform.
  • said motor is an outboard motor, having a propeller, said propeller subsisting between said hydroplane floats, and means securing said hydroplane floats to said rear bulkhead.
  • said platform includes an opening for accommodating said outboard motor, said platform forming a rearwardly extending extension of said craft rigidly secured thereto and substantially co-extensive therewith.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Earth Drilling (AREA)

Description

Feb. 6, 1962 J. DIAMOND HYDROFOIL DECK EXTENSION 2 Sheets-Sheet 1 Filed July 27, 1960 FIG! INVENTOR JACK DIAMOND BY Y ATTORNEYS Feb. 6, 1962 .1. DIAMOND HYDROFOIL DECK EXTENSION 2 Sheets-Sheet 2 Filed July 27, 1960 R 0 m u m D K 0 M ATTORNEYS 3,019,755 HY DRGFOIL DECK EXTENSION Jack Diamond, 5135 Wissioming Road, Washington, D.C. Filed July 27, 1960, Ser. No. 45,613 Claims. (Cl. 114-665) The present invention relates generally to attachments for boats and more particularly to extensions, particularly for outboard motor boats, which facilitate trolling from or fishing from the rear of such boats, thereby extending the utility of the boats.
As a general rule, outboard motor boats are not particularly suited to trolling, and moreover, they often have relatively little deck space. Additional-1y, such boats are light-weight, in general, and therefore cannot support outboard deck extensions which might be employable as platforms from which fishing or trolling can be carried on.
It is an object of the present invention to provide a hydrofoil supported platform for an outboard motor driven small craft, which can be utilized as a deck extension, and from which trolling can be carried on without interference from the outboard propeller.
The above and still further objects, features and advantages of the present invention will become apparent upon consideration of the following detailed description of one specific embodiment thereof, especially when taken in conjunction with the accompanying drawings, wherein:
FIGURE 1 is a side view of a platform according to the invention, secured to a small outboard motor driven craft;
FIGURE 2 is a rear view of the platform of FIG- URE 1;
FIGURE 3 is a top view of the platform of FIGURES 1 and 2; and
FIGURE 4 is a view in perspective of a hydrofoil employed in the system of FIGURES 1 to 3, inclusive.
Referring now to the accompanying drawings, the reference numeral denotes the stern of a small craft, having an outboard motor 11 mounted thereon in any conventional fashion, as by means of brackets 12.
Bolted to the rear bulkhead 13 of the stern 10 by means of a transverse strap 14 and suitable brackets 15 and bolts 16, are provided a pair of pontoon hydrofoils 17. The latter include hollow and therefore buoyant tanks, shaped to introduce minimum hydrodynamic resistance, and having stabilizer planes 18, the forward edges of which tend to ride out of water when the craft attains sutficient speed. The buoyant tanks therefore provide upward lift both because of their inherent buoyancy and because of hydrofoil or hydroplane action, and the former even while the drive craft is stationary.
A horizontal platform P extends rearwardly of the stern 10 and is provided with suitable railings 19 for safety and with rigid brackets 20, extending between the hydrofoil elements 17 and the rearward underside of the platform to support the latter on the hydrofoils. The forward end of the platform is secured to the rear bulkhead 13 by bolts 21 or in any other convenient fashion.
The drive shaft casing 22 and the propeller 23 of the main craft extend into the water, having a level 24, between the pontoon-hydrofoils 17, a suitable opening 25 being provided in the platform P to accommodate the motor itself and to permit its rotation in order to enable maneuvering of the craft.
At the same time, the platform P is essentially a continuation of the stern 10 so that it is easy to pass from one to the other, and complete safety is assured, for men, women and children, even while the craft is in rapid motion.
The hydrofoils 17 can be so designed that substantially none of the weight of the platform or the people thereon must be borne by the craft itself. The latter need only supply traction, requirement for which is minimized by the streamlined shape of the hydrofoils and by the hydroplane action deriving from the planes 18, and the shapes of the pontoon hulls themselves.
While floating extensions for existing boats, according to the invention, find their greatest utility in connection with outboard motor boats, the utility of the invention is not so limited, but the invention finds untility in conjunction with any small craft capable of providing the required traction.
While I have described and illustrated one specific embodiment of my invention, it will be clear that variations of the details of construction which are specifically illustrated and described may be resorted to without departing from the true spirit and scope of the invention as defined in the appended claims.
I claim:
1. A small water craft, including an outboard motor driven boat, a rearwardly extending platform secured to said boat, and hydroplane fioats secured in supporting relation to said platform.
2. In combination with a small motor driven craft having a rear bulkhead, a platform, means securing said platform to said rear bulkhead, a pair of laterally separated hydroplane floats trailing said craft, and means for supporting said platform on said hydroplane floats.
3. The combination according to claim 2 wherein said motor is an outboard motor, having a propeller, said propeller subsisting between said hydroplane floats, and means securing said hydroplane floats to said rear bulkhead.
4. The combination according to claim 3 wherein said platform includes an opening for accommodating said outboard motor, said platform forming a rearwardly extending extension of said craft rigidly secured thereto and substantially co-extensive therewith.
5. The craft of claim 1 wherein said floats include a pair of stabilizer planes.
References Cited in the file of this patent UNITED STATES PATENTS 1,738,979 Adelmann Dec. 10, 1929 1,784,071 Norman Dec. 9, 1930 1,848,018 Maranville Mar. 1, 1932 1,889,927 MacCallum Dec. 6, 1932 2,212,088 Tomassi Aug. 20, 1940
US45613A 1960-07-27 1960-07-27 Hydrofoil deck extension Expired - Lifetime US3019755A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3204260A (en) * 1963-07-22 1965-09-07 John J Fitzmaurice Collapsible boat structure
US3858541A (en) * 1973-05-31 1975-01-07 Jr John C Metcalf Modular boat system
US4101997A (en) * 1976-04-30 1978-07-25 Still Water Properties, N.V. Water ski for power driven water vehicle
US5178089A (en) * 1991-09-09 1993-01-12 Arnold Hodel Motor boat hydrofoil
US5224436A (en) * 1991-10-03 1993-07-06 Stricker John G Multifunction hydrodynamic and buoyant hull extension for planing water craft
US5645007A (en) * 1996-03-15 1997-07-08 Ski Deck, Llc Personal watercraft mooring and transportation system
US6016762A (en) * 1998-03-19 2000-01-25 Price; Leroy Planing foil for twin hulled boats
US6055924A (en) * 1998-08-07 2000-05-02 The United States Of America As Represented By The Secretary Of The Navy Foil assisted marine towing
US20040123789A1 (en) * 2002-10-16 2004-07-01 Textron Inc. (A Delaware, Us, Corporation) Rescue boat
US20090149090A1 (en) * 2005-08-22 2009-06-11 Honda Motor Co., Ltd. Boat propulsion engine
US20110126751A1 (en) * 2007-12-31 2011-06-02 Mueller Peter A Variable overall hull lengths for watercraft
US20120028517A1 (en) * 2009-03-30 2012-02-02 Yamaha Hatsudoki Kabushiki Kaisha Marine vessel
US9302740B2 (en) 2012-12-14 2016-04-05 Quadratoon Company Llc Extendable multihull boat
US9517824B1 (en) * 2011-08-31 2016-12-13 Bombardier Recreational Products Inc. Watercraft

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1738979A (en) * 1928-10-24 1929-12-10 Adelmann Alice Boat
US1784071A (en) * 1929-02-08 1930-12-09 Frank M Norman Boat
US1848018A (en) * 1929-08-02 1932-03-01 Gen Tire & Rubber Co Boat construction
US1889927A (en) * 1931-01-21 1932-12-06 Daniel W Maccallum Boat
US2212088A (en) * 1938-02-08 1940-08-20 Tomassi Joseph Sectional boat

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1738979A (en) * 1928-10-24 1929-12-10 Adelmann Alice Boat
US1784071A (en) * 1929-02-08 1930-12-09 Frank M Norman Boat
US1848018A (en) * 1929-08-02 1932-03-01 Gen Tire & Rubber Co Boat construction
US1889927A (en) * 1931-01-21 1932-12-06 Daniel W Maccallum Boat
US2212088A (en) * 1938-02-08 1940-08-20 Tomassi Joseph Sectional boat

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3204260A (en) * 1963-07-22 1965-09-07 John J Fitzmaurice Collapsible boat structure
US3858541A (en) * 1973-05-31 1975-01-07 Jr John C Metcalf Modular boat system
US4101997A (en) * 1976-04-30 1978-07-25 Still Water Properties, N.V. Water ski for power driven water vehicle
US5178089A (en) * 1991-09-09 1993-01-12 Arnold Hodel Motor boat hydrofoil
US5224436A (en) * 1991-10-03 1993-07-06 Stricker John G Multifunction hydrodynamic and buoyant hull extension for planing water craft
US5645007A (en) * 1996-03-15 1997-07-08 Ski Deck, Llc Personal watercraft mooring and transportation system
US6016762A (en) * 1998-03-19 2000-01-25 Price; Leroy Planing foil for twin hulled boats
US6055924A (en) * 1998-08-07 2000-05-02 The United States Of America As Represented By The Secretary Of The Navy Foil assisted marine towing
US20040123789A1 (en) * 2002-10-16 2004-07-01 Textron Inc. (A Delaware, Us, Corporation) Rescue boat
US20090149090A1 (en) * 2005-08-22 2009-06-11 Honda Motor Co., Ltd. Boat propulsion engine
US8206192B2 (en) * 2005-08-22 2012-06-26 Honda Motor Co., Ltd. Boat propulsion engine
US20110126751A1 (en) * 2007-12-31 2011-06-02 Mueller Peter A Variable overall hull lengths for watercraft
US20120028517A1 (en) * 2009-03-30 2012-02-02 Yamaha Hatsudoki Kabushiki Kaisha Marine vessel
US8826845B2 (en) * 2009-03-30 2014-09-09 Yamaha Hatsudoki Kabushiki Kaisha Marine vessel
US20140349530A1 (en) * 2009-03-30 2014-11-27 Yamaha Hatsudoki Kabushiki Kaisha Marine vessel
US9296456B2 (en) * 2009-03-30 2016-03-29 Yamaha Hatsudoki Kabushiki Kaisha Marine vessel
US9517824B1 (en) * 2011-08-31 2016-12-13 Bombardier Recreational Products Inc. Watercraft
US9302740B2 (en) 2012-12-14 2016-04-05 Quadratoon Company Llc Extendable multihull boat

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