US3828717A - Water skiing apparatus - Google Patents
Water skiing apparatus Download PDFInfo
- Publication number
- US3828717A US3828717A US00375831A US37583173A US3828717A US 3828717 A US3828717 A US 3828717A US 00375831 A US00375831 A US 00375831A US 37583173 A US37583173 A US 37583173A US 3828717 A US3828717 A US 3828717A
- Authority
- US
- United States
- Prior art keywords
- handle
- boat
- towline
- skier
- float
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
- B63B34/60—Arrangements for towing, e.g. for use with water-skis or wakeboards
- B63B34/63—Holding means for the user, e.g. handle bars or harnesses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
- F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for outboard marine engines
Definitions
- ABSTRACT Water skiing apparatus including a boat propelled by an engine and capable of being steered from a point remote from the vessel.
- a control float is connected to the boat by a line and the water skier uses a twohanded grip on separate handles attached to the float.
- One handle is fixed to the float and the other can be rotated through an arc and about a substantially horizontal axis.
- the movable handle is used to operate hydraulic means which actuates a steering nozzle on the boat.
- the fixed handle has a trigger-like control lever which opens and closes the engine throttle through operating means. Circuit means including two switches one on each handle enables the skier to start the motor as well as to bring it to a fast stop in an emergency.
- FIG. 1 is a perspective view showing a water skier being towed by the present apparatus
- FIG. 2 is a side elevation, part in section, of a boat which forms part of the present apparatus
- FIG. 3 is a side elevation of a'control unit of the apparatus showing a right handle of the unit with parts broken away and other parts omitted,
- FIG. 4 is a plan of the control unit with a cover thereof removed
- FIG. 5 is a plan with parts in section of a slave mechanism included in hydraulic means for steering the boat,
- FIG. 6 is a vertical section taken on the line 6-6 of FIG. 4 and showing a master control unit of the hydraulic means
- FIG. 7 is a fragmentary detail view showing a pressure responsive device of the apparatus.
- FIG. 8 is a side elevation of a left handle of the control unit with part broken away and shown in section.
- the numeral 8 indicates generally water-skiing apparatus constructed in accordance with the present invention.
- the apparatus 8 comprises a small unmanned boat 10 especially designed for towing a water skier 12 at the end of a flexible towline 14 with the skier holding on to a control float l6.
- the boat 10 has a hull fitted with a hatch cover 21 which is shaped to provide a seat 22 and leg space 23 for a passenger.
- the cover 21 is readily removable to provide access to an engine 26 which is mounted in the hull.
- the engine 26 is used to power a conventional water jet pump 27 which draws water in through an intake 28 and discharges that water as a pressurized jet stream through a rearwardly directed nozzle 29.
- the nozzle 29 is mounted on the pump 27 to swing about a substantially vertical axis so that the discharging water can be directed right or left to turn the boat in the same direction.
- This type of propelling and steering nozzle is quite well known and is an ideal arrangement for a vessel used in water skiing since it eliminates the need for a conventional propeller and rudder which will sometimes strike and injure someone in the water.
- the engine 26 is fitted with a carburetor 30 and a conventional starter system which is generally indicated at 31. Also mounted in the hull 20 are the usual pump 32 and air blower 33 intended to keep the vessel dry and free from explosive fumes.
- the towline generally indicated at 14 comprises a cable 34 which extends through a fitting 35 (FIG. 2) secured to the transom 36 of the hull.
- a turnbuckle 37 secures one end of the cable to an anchor frame 38 which is mounted in the hull 20 near the transom.
- the fitting 35 serves to anchor one end of a flexible sheath 38 which encloses the cable 34 between the boat 10 and the control float 16.
- the control float generally indicated at 16 is shown best in FIGS. 3, 4 and 6 as comprising a circular housing 40 made up of a hollow base 41 fitted with a cover 42.
- the base and cover of the housing 40 are formed of a cellular plastic material which is tough, lightweight as well as sufficiently buoyant for the unit to float on the surface of the water if it should be dropped by the skier.
- FIG. 6 it will be seen that the base 41 and cover 42 fit together to form a watertight joint 43 and bolts 44 or the like are used to secure the two parts of the housing together.
- a rectangular plate 46 is secured to bottom wall 47 of the base 41 by means of screws 48 and the float end of the cable 34 is secured to the base by a suitable fitting 50, see particularly FIG. 4.
- a bearing 54 which journals a shaft 55 formed on the inner end of an outwardly projecting handle 56.
- the handle 56 can be moved or rotated about the longitudinal axis of the shaft 55 which axis is disposed at an acute angle to the corresponding axis of the towline 14.
- Another handle 58 is fixedly secured to the base plate 46 by means of a bolt 59, see FIG. 4, and this handle is placed at approximately 45 to the rotatable handle 56.
- These pistol-grip type handles 56 and 58 are gripped by the right and left hands respectively of the skier so that the control float 16 may be held in a position to form a con tinuation of the towline as shown in FIG. 1.
- the rotatable handle 56 is intended to be used to steer the boat 10 and therefore the present apparatus is provided with hydraulic means generally indicated at 64.
- the means 64 comprises a slave mechanism 65 which is mounted on the pump 27 near the nozzle 29.
- This mechanism includes a mounting plate 66 which is bolted to the transom 36 to support an outboard extension 67.
- the nozzle 29 is mounted in this tubular extension to swing about a pivot pin 69 which is also fitted with a cross-bar 70.
- Opposite ends of the bar 70 are pivotally secured as at 72 to arms 73 which in turn are pivotally secured as at 74 to pistons 75.
- the pistons 75 are contained in cylinders 76 which are suitably secured to the mounting plate 66, this plate having openings 77 through which the arms 73 freely extend.
- the mechanism 65 turns the nozzle 29 to the left or right to steer the boat in the same direction.
- Fluid pressure to operate the mechanism in this manner is developed at the control float 16 by the skier turning the rotatably mounted handle 56 which movement operates a master control unit 80, see FIGS. 4 and 6.
- Unit comprises a cylinder 82 which is mounted on the base plate 46, the cylinder being fitted with a double-ended piston 83.
- a slightly concave rack 85 is formed on the piston 83 beneath an opening 86 in the cylinder 82, and a pinion 87 which is secured to the inner end of the shaft 55, engages this rack.
- This arrangement allows the piston 83 to be reciprocated in the cylinder 82 by rocking movement of the handle 56 about the axis of the shaft 55.
- the cylinders 76 of the slave mechanism and the cylinder 82 of the master control unit are connected into a closed fluid circuit by means of hose lines 90 which extend through the open ended sheath 38 enclosing the cable 34.
- the opposite ends of the lines 90 are attached to the cylinders 76 by fittings 92 (FIG. 5) and 93 (FIG. 4).
- Oil is injected into the hydraulic circuit through filler plugs 94 on the cylinder 76 and also through filler plugs 95 on the cylinder 82 whereby to completely fill the circuit.
- the piston 83 is moved to the left and the left cylinder 76 (the uppermost cylinder as viewed in FIG.
- the present apparatus is provided with operating means generally indicated at 100.
- the means comprises a device 101 which may be mounted on or near the carburetor 30 of the boats engine so as to actuate a throttle operating arm 102 of the carburetor.
- a spring 103 which for convenience is shown mounted as in FIG. 7 is provided normally to return the arm to a position corresponding to the idling position of the engine.
- the device 101 is a small cylinder 105 fitted with a piston 106 having a piston rod 107 which is operatively connected to the arm 102 as at 108.
- a hose line 109 is connected to the opposite end of the cylinder 105 by a fitting 110 and the cylinder is fitted with a filler plug 111.
- Hose line 109 extends through the sheath 38 to connect the pressure responsive device 101 to a pressure developing device 114 of the operating means, the latter device being shown best in FIG. 8.
- the fixed handle 58 will be seen in FIGS. 4 and 8 to be split vertically and longitudinally into two parts which normally are clamped together by bolts 116.
- Suitable secured between the halves of the handle 58 is a cylinder 117 fitted with a piston 118 which has a rack 119 thereon exposed by a cut-away portion 120 of the cylinder.
- the rack 119 is engaged by a curved pinion 123 cut into a trigger 124 which is mounted in the handle upon a pivot pin 125.
- a fitting 126 connects an end of the hose line 109 to the cylinder 117 so that oil can flow between the devices 101 and 114.
- Another filler plug 127 is provided on the cylinder 117 to keep this end of the operating means completely filled with oil and thus provide another closed hydraulic circuit in addition to the steering circuit.
- the skier is able to start and stop the motor 26 by virtue of circuit means 130 only a portion of which appear in some of the views of the drawings.
- the means 130 in effect, is an extension of the starting circuit which is generally indicated at 31 in FIG. 2.
- Means 130 includes a normally open switch 132 which is mounted in the fixed handle 58 in a position shown best in FIG. 8 where it can conveniently be operated by the thumb of the skiers left hand.
- Wires 133 extend from the switch 132 through the hollow handle 58, thence through the housing 40 (FIG. 4) and the sheath 38 into the hull 20 (FIG. 2) where they are tied into the starter circuit 31 by suitable connections. not shown.
- the skier can hold the piston-grip of the handle 58 and start the engine by closing the switch 132 with his thumb while adjusting the running speed of the motor by means of the trigger 124 with his left forefinger.
- the circuit means 130 also includes a normally closed switch 136 (FIGS. 3 and 4) which is mounted on the rotatable handle 56 to be operated by the skiers right thumb.
- Switch 136 is connected by wires 137 which extend through the hollow handle 56 (FIG. 4), the housing 40 (FIG. 2), the sheath 38 (FIG. 4) into the hull 20 where they are also tied into the circuit 31 by suitable connections, not shown.
- the switch 136 is opened by the right thumb of the skier, the circuit 31 is shorted out and the engine 26 comes to a dead stop.
- the fixed handle 58 is held by the left hand and the rotatable handle 56 is held by the right hand.
- the engine can be revved up to approximately full throttle which will serve to pull the submerged skier up on to the surface of the water.
- the skier can steer the boat to the right or left by instinctively turning his right hand clockwise or counterclockwise and can also control his skiing speed by means of the trigger 124. Should the skier fall, this will cause him to release his grip on the control float 16 whereupon the spring 103 will cut the engine down to idling speed and this will stop the boat. The skier can then swim to the control float 16 and assume control which will enable him to get back up on his skies on the surface of the water.
- the skier may be proceeding in a normal manner and suddenly spot an obstruction which he feels cannot be avoided by turning the boat or cutting the engine speed to idling in which case he closes the switch 136 on the handle 56. This kills the motor completely and allows the skier and the boat to come to a much quicker halt than would otherwise the case.
- Apparatus for towing a water skier comprising an unmanned boat having a steering device and a propelling engine fitted with a throttle operating arm, a towline secured at one end to the boat and extending rearwardly therefrom, a control float secured to the opposite end of the towline, said control float having a fixed handle and a movable handle adapted to be held one in each hand of the skier, hydraulic means operatively connecting the steering device on the boat to the movable handle; said hydraulic mechanism comprising a slave mechanism for turning the steering device, a master control unit carried by the control float to be actuated by the movable handle, and hose lines extending along the towline and connecting the slave mechanism to the master control unit in a closed fluid circuit; said master control unit including a double-headed piston mounted in a cylinder having opposite ends connected one to each hose line, a rack on the double-headed piston, a pinion rotatable with the movable handle and engaging the rack, and operating means extending between the throttle
- said propelling engine has a starter system including wires extending along the towline and a starter switch mounted on the fixed handle, said operating means comprising a pressure responsive device operatively connected to the throttle operating arm of the engine, a pressure developing device mounted in the fixed handle for opera tion by the hand-actuated member, and other hose lines extending along the towline to interconnect the pressure responsive and pressure developing devices.
- Apparatus for towing a water skier comprising an unmanned boat having a steering device, a propelling engine fitted with a throttle operating arm, and a starter system, a towline secured at one end to the boat and extending rearwardly therefrom, a control float secured to the opposite end of the towline, said control float having a fixed handle and a handle rotatable about a substantially horizontal axis, hydraulic means operatively connecting the steering device to the rotatable handle; said hydraulic means comprising a slave mechanism for turning the steering device, a master control unit carried by the control float to be actuated by the rotatable handle, and hose lines extending along the towline and connecting the slave mechanism to the master control unit in a closed fluid circuit; said master control unit including a double-headed piston mounted in a cylinder and having opposite ends connected one to each hose line, a rack on the double-headed piston, a pinion rotatable with the rotatable handle and engaging the rack, a pressure responsive device
- said towline comprises a cable anchored at opposite ends to the boat and the control float, and a flexible sheath enclosing the cable, the hose lines, and the wires of the circuit
Abstract
Description
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00375831A US3828717A (en) | 1973-07-02 | 1973-07-02 | Water skiing apparatus |
CA188,213A CA969428A (en) | 1973-07-02 | 1973-12-14 | Water skiing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00375831A US3828717A (en) | 1973-07-02 | 1973-07-02 | Water skiing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US3828717A true US3828717A (en) | 1974-08-13 |
Family
ID=23482547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00375831A Expired - Lifetime US3828717A (en) | 1973-07-02 | 1973-07-02 | Water skiing apparatus |
Country Status (2)
Country | Link |
---|---|
US (1) | US3828717A (en) |
CA (1) | CA969428A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5041040A (en) * | 1990-08-01 | 1991-08-20 | Jones Ronald O | Motorboat, without driver, controlled by water skier skiing, or optionally controlled by a driver |
US5094638A (en) * | 1989-04-21 | 1992-03-10 | Yamaha Hatsudoki Kabushiki Kaisha | Water vehicle |
WO1992009477A1 (en) * | 1990-11-29 | 1992-06-11 | Nielsen Robert A | Conversion of a watercraft to a water skier controlled drone |
US5582529A (en) * | 1994-03-03 | 1996-12-10 | Montgomery; Robert E. | High performance motorized water ski |
US5791276A (en) * | 1997-10-17 | 1998-08-11 | Floyd; Darrell W. | Ski rider controls |
USD424008S (en) * | 1998-09-08 | 2000-05-02 | Robert Eglington Montgomery | Motorized water ski |
US6558211B2 (en) * | 2001-08-11 | 2003-05-06 | Michael W. Freitag | Low-profile steering nozzle for water jet propulsion system |
EP1538074A1 (en) * | 2003-12-05 | 2005-06-08 | Sshl, Inc. | Remote marine craft control system and methods of using same |
US20050124234A1 (en) * | 2003-12-05 | 2005-06-09 | Robin Sells | Remote marine craft system and methods of using same |
KR100799923B1 (en) * | 2001-07-04 | 2008-01-31 | 강건일 | The remote of water-skling controller |
US20140112093A1 (en) * | 2011-12-12 | 2014-04-24 | Benny D. Puck | Floating manure agitator |
US20210179237A1 (en) * | 2017-11-16 | 2021-06-17 | Bernardo Fernandez Fernandez | Control bar for controlling a traction unit |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2776443A (en) * | 1953-06-15 | 1957-01-08 | Lauren A Howard | Water skiing apparatus |
US2891498A (en) * | 1954-08-06 | 1959-06-23 | Fox River Mfg Company | Hydraulic control mechanism for motor boats and other uses |
US2939417A (en) * | 1957-09-20 | 1960-06-07 | Sr Carl E Hammock | Hydraulic steering apparatus for outboard motorboats |
US2972326A (en) * | 1956-06-18 | 1961-02-21 | Lee S Simpson | Tow vehicle for water-skiers |
US3079885A (en) * | 1961-04-27 | 1963-03-05 | Theodore C Cooke | Water skiing apparatus |
US3450087A (en) * | 1967-06-07 | 1969-06-17 | Tamco Ltd | Hydraulic steering for watercraft |
-
1973
- 1973-07-02 US US00375831A patent/US3828717A/en not_active Expired - Lifetime
- 1973-12-14 CA CA188,213A patent/CA969428A/en not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2776443A (en) * | 1953-06-15 | 1957-01-08 | Lauren A Howard | Water skiing apparatus |
US2891498A (en) * | 1954-08-06 | 1959-06-23 | Fox River Mfg Company | Hydraulic control mechanism for motor boats and other uses |
US2972326A (en) * | 1956-06-18 | 1961-02-21 | Lee S Simpson | Tow vehicle for water-skiers |
US2939417A (en) * | 1957-09-20 | 1960-06-07 | Sr Carl E Hammock | Hydraulic steering apparatus for outboard motorboats |
US3079885A (en) * | 1961-04-27 | 1963-03-05 | Theodore C Cooke | Water skiing apparatus |
US3450087A (en) * | 1967-06-07 | 1969-06-17 | Tamco Ltd | Hydraulic steering for watercraft |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5094638A (en) * | 1989-04-21 | 1992-03-10 | Yamaha Hatsudoki Kabushiki Kaisha | Water vehicle |
US5041040A (en) * | 1990-08-01 | 1991-08-20 | Jones Ronald O | Motorboat, without driver, controlled by water skier skiing, or optionally controlled by a driver |
WO1992009477A1 (en) * | 1990-11-29 | 1992-06-11 | Nielsen Robert A | Conversion of a watercraft to a water skier controlled drone |
US5167550A (en) * | 1990-11-29 | 1992-12-01 | Nielsen Robert A | Conversion of a watercraft to a water skier controlled drone |
US5582529A (en) * | 1994-03-03 | 1996-12-10 | Montgomery; Robert E. | High performance motorized water ski |
US5791276A (en) * | 1997-10-17 | 1998-08-11 | Floyd; Darrell W. | Ski rider controls |
USD424008S (en) * | 1998-09-08 | 2000-05-02 | Robert Eglington Montgomery | Motorized water ski |
KR100799923B1 (en) * | 2001-07-04 | 2008-01-31 | 강건일 | The remote of water-skling controller |
US6558211B2 (en) * | 2001-08-11 | 2003-05-06 | Michael W. Freitag | Low-profile steering nozzle for water jet propulsion system |
EP1538074A1 (en) * | 2003-12-05 | 2005-06-08 | Sshl, Inc. | Remote marine craft control system and methods of using same |
US20050124234A1 (en) * | 2003-12-05 | 2005-06-09 | Robin Sells | Remote marine craft system and methods of using same |
US20140112093A1 (en) * | 2011-12-12 | 2014-04-24 | Benny D. Puck | Floating manure agitator |
US9462741B2 (en) * | 2011-12-12 | 2016-10-11 | Puck Custom Enterprises, Inc. | Floating manure agitator |
US9572297B2 (en) * | 2011-12-12 | 2017-02-21 | Puck Custom Enterprises, Inc. | Floating manure agitator |
US20210179237A1 (en) * | 2017-11-16 | 2021-06-17 | Bernardo Fernandez Fernandez | Control bar for controlling a traction unit |
Also Published As
Publication number | Publication date |
---|---|
CA969428A (en) | 1975-06-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: LIONS MANAGEMENT LTD., SUITE 820, 777 HORNBY ST., Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:RAKUSON, GEORGE;NICHOLS, RONALD A.;REEL/FRAME:004247/0748 Effective date: 19790605 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES) |
|
AS | Assignment |
Owner name: SKI-FREE MARINE INC., CALGARY, PROVINCE OF ALBERTA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:NATTRASS, BRIAN F.;REEL/FRAME:005006/0568 Effective date: 19850415 Owner name: NATTRASS, BRIAN F. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. SUBJECT TO CONDITIONS RECITED;ASSIGNORS:SKI-WHEEE DISTRIBUTORS LTD.;LIONS MANAGEMENT LTD., THE;SKI-WHEE INDUSTRIES INC.;AND OTHERS;REEL/FRAME:005006/0501 Effective date: 19850315 Owner name: NATTRASS, FLOYD C., 1200 SIXTH STREET SOUTH WEST, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. SUBJECT TO CONDITIONS RECITED;ASSIGNORS:SKI-WHEEE DISTRIBUTORS LTD.;LIONS MANAGEMENT LTD., THE;SKI-WHEE INDUSTRIES INC.;AND OTHERS;REEL/FRAME:005006/0501 Effective date: 19850315 |
|
AS | Assignment |
Owner name: PROVINCE OF ALBERTA TREASURY BRANCHES, 717 - 6TH A Free format text: MORTGAGE;ASSIGNOR:SKI FREE MARINE INC., A CORP. OF CANADA;REEL/FRAME:004958/0501 Effective date: 19880728 Owner name: PROVINCE OF ALBERTA TREASURY BRANCHES,CANADA Free format text: MORTGAGE;ASSIGNOR:SKI FREE MARINE INC., A CORP. OF CANADA;REEL/FRAME:004958/0501 Effective date: 19880728 |
|
AS | Assignment |
Owner name: PROVINCE OF ALBERTA TREASURY BRANCHES, CANADA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SKI FREE MARINE INC.;REEL/FRAME:005043/0625 Effective date: 19890203 |