Patent US3921994A successfully refreshed from Google Patents.
US3921994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Split-structure skis
Assignee: Individual
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Filing: 1974-05-02
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Granted: 1975-11-25
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Expires: 1994-05-02
Abstract
Abstract A ski in which the structure, rather than being an entity as in the conventional skis, is split into two parallel runners and an overlying binding portion. The runners are linked to the binding portion by elastically reacting links so that each runner can be vertically shifted with respect to the other runner and vice versa. The elastic reaction can be provided by a hydraulic fluid or a mechanical linkage. With the suggested arrangement, an improved stability of the ski in its path is warranted inasmuch as the ski edge can more efficiently act upon the snowy ground.
Inventors
- 👤 Giuseppe Locati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:04
CPC Classifications
A; A63; A63C; A63C5/00; A63C5/02; A63C5/16; A63C9/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
75 words
A ski comprising a binding portion, to which a ski boot of a skier is intended to be fastened, and a sliding body provided with at least one longitudinal slot which at least partially divides it into two side-by-side runners, linkage means for individually connecting each runner to said binding portion in such manner as to allow said runners to move with respect to each other perpendicularly to the sliding plane of the sliding body.
Claim 2
Dependent Claim
75 words
A ski comprising a binding portion, to which a ski boot of a skier is intended to be fastened, and a sliding body provided with at least one longitudinal slot which at least partially divides it into two side-by-side runners, linkage means for individually connecting each runner to said binding portion in such manner as to allow said runners to move with respect to each other perpendicularly to the sliding plane of the sliding body.
Claim 3
Dependent Claim
20 words
A ski according to claim 1, wherein said runners carry mutual connections in correspondence with their tip and/or tail portions.
Claim 4
Dependent Claim
20 words
A ski according to claim 2, wherein said connections permit a mutual relative vertical movement of the mutually connected parts.
Claim 5
Dependent Claim
48 words
A ski according to claim 1 wherein the linkage means connects said runners to said binding portion so that a movement of one runner with respect to the binding portion causes a substantially equal and oppositely directed movement of the other runner with respect to said binding portion.
Claim 6
Dependent Claim
89 words
A ski according to claim 4, wherein said linkage means comprises pistons located on an upper portion of each of said runners, said pistons being located adjacent said binding portion and corresponding seats integral with said binding portion, each of said pistons being movably positioned within said seats so as to define a compression chamber therein, said compression chamber formed by each piston in its seat being occupied by a fluid and communicating with the compression chamber formed in its seat by the corresponding piston of the other runner.
Claim 7
Dependent Claim
90 words
An improved ski comprising: individual first and second sliding body portions each having a bottom surface for slidably engaging snow and defining a sliding plane, a binding portion to which a boot of a skier can be fastened, linkage means for individually connecting each of said first and secOnd sliding body portions to said binding portion so that a slot is formed between said first and second sliding body portions, said first and second portions being movable with respect to each other and perpendicularly with respect to the sliding plane.
Claim 8
Dependent Claim
90 words
An improved ski comprising: individual first and second sliding body portions each having a bottom surface for slidably engaging snow and defining a sliding plane, a binding portion to which a boot of a skier can be fastened, linkage means for individually connecting each of said first and secOnd sliding body portions to said binding portion so that a slot is formed between said first and second sliding body portions, said first and second portions being movable with respect to each other and perpendicularly with respect to the sliding plane.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |