Patent US3821064A successfully refreshed from Google Patents.
US3821064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Man-made ski slopes
Assignee: Individual
•
Filing: 1972-04-05
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Granted: 1974-06-28
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Expires: 1992-04-05
Abstract
Abstract A linear plastic structural shape, supporting the stems, having a width comprised between 0,4 and 2 cm and is arranged with like shapes so as to form a discontinuous surface defined by suitable geometrical figures which are variable depending on the type of sking for which the surface is designed. The linear shape has a rounded off upper surface or inclined walls. The discontinuous sliding surface is provided with empty or lightening zones of limited surface area which are delimited by the aforesaid shapes consisting of plastic and supporting the stems. The flexible stems, consisting also of plastic material, are fixedly secured perpendicular to the plastic shape, and have a conical, fractionated or feathered configuration, with the upper apexes rounded off, the length and width of the stems depending upon the type of skiing to be performed. The stems may be of the same or different lengths and may be joined or connected to each other at their upper ends.
Inventors
- 👤 F Cima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:46
CPC Classifications
E; E01; E01C; E01C13/00; E01C13/10; E01C13/12; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23929; Y10T428/23936
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
89 words
An artificial ski slope, comprising a support portion, and another portion fast with and supported by the latter and constituting a base for skiing, said support portion including a plurality of elongated structural elements of substantially linear configuration arranged so as to define with one another a plurality of polygonal openings extending through said support portion with each of said elements forming at least part of the side of a polygon, and said other portion including a plurality of elongated elastically yieldable members extending upwardly from said support portion.
Claim 2
Dependent Claim
89 words
An artificial ski slope, comprising a support portion, and another portion fast with and supported by the latter and constituting a base for skiing, said support portion including a plurality of elongated structural elements of substantially linear configuration arranged so as to define with one another a plurality of polygonal openings extending through said support portion with each of said elements forming at least part of the side of a polygon, and said other portion including a plurality of elongated elastically yieldable members extending upwardly from said support portion.
Claim 3
Dependent Claim
24 words
An artificial ski slope as defined in claim 1, wherein each of said elements is connected with at least one other of said elements.
Claim 4
Dependent Claim
23 words
An artificial ski slope as defined in claim 1, wherein each of said elements has a width of substantially 0.4 to 2 centimeters.
Claim 5
Dependent Claim
23 words
An artificial ski slope as defined in claim 1, each of said elements having an upper surface; and wherein said surfaces are arcuate.
Claim 6
Dependent Claim
16 words
An artificial ski slope as defined in claim 4, wherein said surfaces have a semi-circular configuration.
Claim 7
Dependent Claim
16 words
An artificial ski slope as defined in claim 4, wherein said surfaces have a semi-elliptical configuration.
Claim 8
Dependent Claim
16 words
An artificial ski slope as defined in claim 4, wherein said surfaces have a semi-oval configuration.
Claim 9
Dependent Claim
29 words
An artificial ski slope as defined in claim 1, each of said elements having an upper surface; and wherein each of said surfaces comprises two mutually inclined surface portions.
Claim 10
Dependent Claim
16 words
An artificial ski slope as defined in claim 8, wherein said surfaces have a triangular configuration.
Claim 11
Dependent Claim
19 words
An artificial ski slope as defined in claim 1, wherein said members extend substantially normal to the respective elements.
Claim 12
Dependent Claim
17 words
An artificial ski slope as defined in claim 1, wherein said members have a substantially conical configuration.
Claim 13
Dependent Claim
44 words
An artificial ski slope as defined in claim 1, each of said members having a base section fast with said support portion, and another section extending from said base section; and wherein said other section is subdivided into a plurality of elastically yieldable portions.
Claim 14
Dependent Claim
45 words
An artificial ski slope as defined in claim 1, each of said members having an end fast with said support portion, and another end spaced from the latter; and wherein at least some of said members are provided with an opening intermediate their respective ends.
Claim 15
Dependent Claim
38 words
An artificial ski slope as defined in claim 1, each of said members having an end spaced from said support portion; and wherein at least some of said members are connected with each otHer at their respective ends.
Claim 16
Dependent Claim
27 words
An artificial ski slope as defined in claim 1, each of said members having an end spaced from said support portion; and wherein said ends are rounded.
Claim 17
Dependent Claim
19 words
An artificial ski slope as defined in claim 1, wherein all of said members are of substantially equal length.
Claim 18
Dependent Claim
16 words
An artificial ski slope as defined in claim 1, wherein said members are of different length.
Claim 19
Dependent Claim
26 words
An artificial ski slope as defined in claim 1, wherein said members are arranged in rows extending in the direction of elongation of the respective elements.
Claim 20
Dependent Claim
42 words
An artificial ski slope as defined in claim 1, said members being arranged in substantially parallel rows extending in the direction of elongation of the respective elements; and wherein the respective members of two adjacent rows are arranged laterally adjacent one another.
Claim 21
Dependent Claim
22 words
An artificial ski slope as defined in claim 19, wherein at most four of said members are arranged laterally adjacent one another.
Claim 22
Dependent Claim
18 words
An artificial ski slope as defined in claim 1, wherein at least some of said polygons are triangles.
Claim 23
Dependent Claim
15 words
An artificial ski slope as defined in claim 21, wherein said triangles are equilateral triangles.
Claim 24
Dependent Claim
18 words
An artificial ski slope as defined in claim 1, wherein at least some of said polygons are rectangles.
Claim 25
Dependent Claim
18 words
An artificial ski slope as defined in claim 1, wherein at least some of said polygons are squares.
Claim 26
Dependent Claim
66 words
As a novel article of manufacture, a structural component for use in making artificial ski slopes, comprising an elongated first portion of substantially linear configuration; and a plurality of elongated elastically yieldable second portions fast with said first portion and extending outwardly therefrom, said second portions being adapted to be upwardly directed when said component is in use so as to form a base for skiing.
Claim 27
Dependent Claim
66 words
As a novel article of manufacture, a structural component for use in making artificial ski slopes, comprising an elongated first portion of substantially linear configuration; and a plurality of elongated elastically yieldable second portions fast with said first portion and extending outwardly therefrom, said second portions being adapted to be upwardly directed when said component is in use so as to form a base for skiing.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |