US4599072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equipment for movement on water surface and towless aquatic ski
Assignee: BERTELE' GIOVANNI MARCO LURAGO D'ERBA
•
Filing: 1984-03-14
•
Granted: 1986-07-08
•
Expires: 2004-03-14
Abstract
Abstract Equipment for movement on water surface and towless aquatic ski, comprising two hollow shoes for supporting a user under condition of static floatage, which shoes are provided with flexible connections for accomodating the user's feet, and at least one movable stabilizing fin, and two sticks with rotatable hollow rackets, peripherally provided with inclined tabs, for thrust impact on the water surface; the shoes are formed of two portions which are interconnected by an articulated joint, to be movable with respect to each other, and the rear portion is fitted with at least one fin.
Inventors
- 👤 Piero Pollini
- 👤 Giovanni M. Bertele
- 👤 Ettore Comoli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:00
CPC Classifications
B; B63; B63B; B63B34/00; B63B34/50; B63B34/56; B63B34/565
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
227 words
A water ski, comprising an elongated body, said elongated body composed of a plurality of floating sections, a front section and a rear section, means for receiving a foot, said foot receiving means associated with said front section of said elongated body, an articulated joint interconnecting said front and rear sections of said elongated body, said articulated joint being pivoted about a mean vertical longitudinal plane of said elongated body, and means for resiliently longitudinally aligning said front and rear sections with respect to one another, wherein said articulated joint comprises a substantially U-shaped recess, in one of said front and rear sections, a lug extending from the other of said front and rear sections and adapted to fit into said U-shaped recess, a hole extending through said lug, and a pair of holes extending through the one of said front and rear sections, such that all three holes are aligned when said lug is fitted into said U-shaped recess, a pin adapted to fit through all three holes when the same are aligned, and wherein said aligning means comprise a groove disposed on an outer surface of said lug extending in a direction substantially parallel to the mean vertical longitudinal plane, a seat formed along an edge of said U-shaped recess, and a sphere adapted to be partially accomodated in said seat and in said groove.
Claim 2
Dependent Claim
227 words
A water ski, comprising an elongated body, said elongated body composed of a plurality of floating sections, a front section and a rear section, means for receiving a foot, said foot receiving means associated with said front section of said elongated body, an articulated joint interconnecting said front and rear sections of said elongated body, said articulated joint being pivoted about a mean vertical longitudinal plane of said elongated body, and means for resiliently longitudinally aligning said front and rear sections with respect to one another, wherein said articulated joint comprises a substantially U-shaped recess, in one of said front and rear sections, a lug extending from the other of said front and rear sections and adapted to fit into said U-shaped recess, a hole extending through said lug, and a pair of holes extending through the one of said front and rear sections, such that all three holes are aligned when said lug is fitted into said U-shaped recess, a pin adapted to fit through all three holes when the same are aligned, and wherein said aligning means comprise a groove disposed on an outer surface of said lug extending in a direction substantially parallel to the mean vertical longitudinal plane, a seat formed along an edge of said U-shaped recess, and a sphere adapted to be partially accomodated in said seat and in said groove.
Claim 3
Dependent Claim
20 words
The ski of claim 1, wherein said pair of holes are threaded and said pin is at least partially threaded.
Claim 4
Dependent Claim
22 words
The ski of claim 2, wherein said lug extends from said front section and said recess is formed in said rear section.
Claim 5
Dependent Claim
13 words
The ski of claim 1, wherein said front and rear sections are hollow.
Claim 6
Dependent Claim
15 words
The ski of claim 1, additionally comprising a movable fin disposed upon said front section.
Claim 7
Dependent Claim
16 words
The ski of claim 1, additionally comprising at least one fin affixed to said rear section.
Claim 8
Dependent Claim
14 words
The ski of claim 1, wherein said front and rear sections are removably interconnected.
Claim 9
Dependent Claim
20 words
The ski of claim 1, wherein said foot receiving means are disposed upon an upper surface of said front section.
Claim 10
Dependent Claim
44 words
The ski of claim 8, wherein said foot receiving means comprise a base plate, and pivoting means dividing said base plate into a front portion and a rear portion such that said portions of said base plate are pivotable with respect to one another.
Claim 11
Dependent Claim
19 words
The ski of claim 9, wherein said pivoting means are constituted by a transversely-extending groove across said base plate.
Claim 12
Dependent Claim
45 words
The ski of claim 10, wherein said front portion of said base plate is affixed to the upper surface of said front section of said elongated body, such that said rear portion of said base plate is pivotable with respect to said front portion thereof.
Claim 13
Dependent Claim
19 words
The ski of claim 11, additionally comprising footwear secured to said front and rear portions of said base plate.
Claim 14
Dependent Claim
34 words
The ski of claim 1, additionally comprising at least one groove extending transversely across a top surface of said ski, for receiving a rod therewithin, and means for clamping said rod within said groove.
Claim 15
Dependent Claim
200 words
A water ski, comprising an elongated body, said elongated body composed of a plurality of floating sections, a front section and a rear section, means for receiving a foot, said foot receiving means associated with said front section of said elongated body, and an articulated joint interconnecting said front and rear sections of said elongated body, said articulated joint being pivoted about a mean vertical longitudinal plane of said elongated body, at least one groove extending transversely across a top surface of said ski, for receiving a rod therewithin, and means for clamping said rod within said groove, wherein said clamping means comprise a supporting block secured to an upper surface of said elongated body adjacent said groove, and having two substantially parallel projections, a transverse pin extending between said projections, a lever rotatably disposed about said pin, said lever comprising two substantially parallel jaws, a second pin extending between said two jaws, and a clamping element pivoted about said second pin and having an end opposite said jaws which is adapted to clamp said rod within said groove, and to move away from said groove upon rotation of said lever, allowing for removal of said rod from said groove.
Claim 16
Dependent Claim
200 words
A water ski, comprising an elongated body, said elongated body composed of a plurality of floating sections, a front section and a rear section, means for receiving a foot, said foot receiving means associated with said front section of said elongated body, and an articulated joint interconnecting said front and rear sections of said elongated body, said articulated joint being pivoted about a mean vertical longitudinal plane of said elongated body, at least one groove extending transversely across a top surface of said ski, for receiving a rod therewithin, and means for clamping said rod within said groove, wherein said clamping means comprise a supporting block secured to an upper surface of said elongated body adjacent said groove, and having two substantially parallel projections, a transverse pin extending between said projections, a lever rotatably disposed about said pin, said lever comprising two substantially parallel jaws, a second pin extending between said two jaws, and a clamping element pivoted about said second pin and having an end opposite said jaws which is adapted to clamp said rod within said groove, and to move away from said groove upon rotation of said lever, allowing for removal of said rod from said groove.
Claim 17
Dependent Claim
46 words
The ski of claim 14, wherein said rod is adapted to be clamped by an adjacent ski to form a catamaran structure with two skis, and to be separated from the ski and grasped by an individual to constitute means for aiding movement with the ski.
Claim 18
Dependent Claim
168 words
A water ski, comprising an elongated body, said elongated body composed of a plurality of floating sections, a front section and a rear section, means for receiving a foot, said foot receiving means associated with said front section of said elongated body, an articulated joint interconnecting said front and rear section of said elongated body, said articulated joint being pivoted about a mean vertical longitudinal plane of said elongated body, at least one groove extending transversely across a top surface of said ski, for receiving a rod therewithin, and means for clamping said rod within said groove, wherein said rod is adapted to be clamped by an adjacent ski to form a catamaran structure with two skis and to be separated from the ski and grasped by an individual to constitute means for aiding movement with the ski, and wherein said rod comprises an elongated member, a substantially closed hollow body rotatably disposed about said elongated member, and a crown of inclined blades disposed upon said hollow body.
Claim 19
Dependent Claim
168 words
A water ski, comprising an elongated body, said elongated body composed of a plurality of floating sections, a front section and a rear section, means for receiving a foot, said foot receiving means associated with said front section of said elongated body, an articulated joint interconnecting said front and rear section of said elongated body, said articulated joint being pivoted about a mean vertical longitudinal plane of said elongated body, at least one groove extending transversely across a top surface of said ski, for receiving a rod therewithin, and means for clamping said rod within said groove, wherein said rod is adapted to be clamped by an adjacent ski to form a catamaran structure with two skis and to be separated from the ski and grasped by an individual to constitute means for aiding movement with the ski, and wherein said rod comprises an elongated member, a substantially closed hollow body rotatably disposed about said elongated member, and a crown of inclined blades disposed upon said hollow body.
Claim 20
Dependent Claim
27 words
The ski of claim 16, wherein said rod additionally comprises a handle disposed on an end of said elongated member, and a strap disposed upon said handle.
Claim 21
Dependent Claim
23 words
The ski of claim 16, wherein said hollow body is coaxially mounted about said elongated member to rotate about a longitudinal axis thereof.
Claim 22
Dependent Claim
22 words
The ski of claim 5, additionally comprising spring means for biasing said movable fin in an outwardly direction from said elongated body.
References Cited (Backward Citations)
CH33991A
Cited
US885866A
Cited
FR492556A
Cited
US1719059A
Cited
DE647760C
Cited
US2144207A
Cited
US2390181A
Cited
US2894760A
Cited
US2940090A
Cited
US3034157A
Cited
DE1904719A1
Cited
GB1375865A
Cited
US4293968A
Cited
DE3132033A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-07 | 1990-01-06 | 1990-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-07 | 1994-01-06 | 1994-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-07 | 1998-01-06 | 1998-07-08 | $7700.00 | Window Closed / Lapsed |