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US4125273A Expired / Lapsed US ⏱️ 0.0 years remaining

Separable or foldable ski

Assignee: Individual
•
Filing: 1977-06-13
•
Granted: 1978-11-14
•
Expires: 1997-06-13
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Abstract

Abstract The invention relates to a separable or foldable ski. The ski has separate sections pivotally joined together. Located at the joint is a coupling arrangement by means of which the corresponding section may be joined together. In addition, a stabilizing device is provided to join and stiffen the ski in the extended position in order to provide desirable rigidity and resiliency therein.

Inventors

  • 👤 Karl-Heinz Rothmayer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 21:36
CPC Classifications
A; A63; A63C; A63C5/00; A63C5/02; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32393; Y10T403/32409

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 304 words
A foldable ski which comprises: a front ski section and a rear ski section having upper, lateral and skiing surfaces, and cylindrically-shaped end faces being complementarily cylindrical to each other with their cylinder axis extending substantially parallel to said skiing surfaces and transversely to the longitudinal direction of the ski, the end faces defining a junction of said front and rear ski sections; said front and rear ski sections being provided with longitudinally extending guiding means formed in said lateral surfaces thereof, connecting hinge means for connecting said front ski section to said rear ski section at said junction, whereby said guiding means of said front ski section are in alignment with said guiding means of said rear ski section and said cylindrically-shaped end faces contact each other at said junction in an unfolded extended relative position of said ski sections; recesses in said cylindrically-shaped end faces, and said connecting hinge means including at least one substantially U-shaped hinge part spanning said junction between said front and rear ski sections and arranged in said recesses, said hinge part being attached to said respective ski sections by means of hinge pins passing transversally to said respective ski sections through free ends of legs of said U-shaped hinge part; a U-shaped stabilizing device having inwardly extending engaging means on each leg of said U-shaped stabilizing device, said stabilizing device being slidably mounted on one of said ski sections in a folded relative position thereof and adapted to cover said junction of said ski sections in said unfolded extended relative position thereof, thereby said engaging means guidably engage said guiding means of said ski sections for effecting the stabilized positioning of said front ski section to said rear ski section; and locking means for fixing the stabilized positioning of said stabilizing device relative to said ski sections.
Claim 2
Dependent Claim 304 words
A foldable ski which comprises: a front ski section and a rear ski section having upper, lateral and skiing surfaces, and cylindrically-shaped end faces being complementarily cylindrical to each other with their cylinder axis extending substantially parallel to said skiing surfaces and transversely to the longitudinal direction of the ski, the end faces defining a junction of said front and rear ski sections; said front and rear ski sections being provided with longitudinally extending guiding means formed in said lateral surfaces thereof, connecting hinge means for connecting said front ski section to said rear ski section at said junction, whereby said guiding means of said front ski section are in alignment with said guiding means of said rear ski section and said cylindrically-shaped end faces contact each other at said junction in an unfolded extended relative position of said ski sections; recesses in said cylindrically-shaped end faces, and said connecting hinge means including at least one substantially U-shaped hinge part spanning said junction between said front and rear ski sections and arranged in said recesses, said hinge part being attached to said respective ski sections by means of hinge pins passing transversally to said respective ski sections through free ends of legs of said U-shaped hinge part; a U-shaped stabilizing device having inwardly extending engaging means on each leg of said U-shaped stabilizing device, said stabilizing device being slidably mounted on one of said ski sections in a folded relative position thereof and adapted to cover said junction of said ski sections in said unfolded extended relative position thereof, thereby said engaging means guidably engage said guiding means of said ski sections for effecting the stabilized positioning of said front ski section to said rear ski section; and locking means for fixing the stabilized positioning of said stabilizing device relative to said ski sections.
Claim 3
Dependent Claim 17 words
The ski according to claim 1, wherein a ski binding is secured to said U-shaped stabilizing device.
Claim 4
Dependent Claim 66 words
The ski according to claim 1 wherein said front and rear ski sections each have a dovetail groove on said upper surfaces thereof, said dovetail grooves being in alignment in said unfolded extended relative position of said ski sections, and said U-shaped stabilizing device having a projection on a lower surface thereof corresponding in cross section to said dovetail grooves and guidably engaging into said grooves.

References Cited (Backward Citations)

SE34568C1 Cited
US1875512A Cited
US2224897A Cited
US2295638A Cited
US2545209A Cited
US2791435A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-11-13 1982-05-15 1982-11-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-11-13 1986-05-15 1986-11-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-11-13 1990-05-15 1990-11-14 $7700.00 Window Closed / Lapsed

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