Patent US2486460A successfully refreshed from Google Patents.
Patent US5374137A successfully refreshed from Google Patents.
US5374137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yieldable post and method of using same
Assignee: Individual
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Filing: 1992-09-04
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Granted: 1994-12-20
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Expires: 2012-09-04
Abstract
Abstract A safety pole useful as a ski gate is constructed of a core of flexible, self redressing material, covered by a flexible protective mesh sleeve and capped at both ends. The core is soft and flexible enough to prevent injury to skiers, yet self redresses to its original, normally vertical position quickly and reliably. The mesh sleeve is tough and flexible, to bend with the core while protecting it from damage from skis. The end caps protect the core from damage upon insertion in the snow. By making some or all of the elements of fluorescent, brightly colored or light reflective material, or by adding reflective tape or stickers to those elements, visibility of the pole is enhanced. The pole is suitable for retaining ropes or ribbons to demarcate lift line paths, boundaries and the like.
Inventors
- 👤 Erik J. Steinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:46
CPC Classifications
A; A63; A63C; A63C19/00; A63C19/06; A63C19/062; E; E01; E01F; E01F9/00; E01F9/60; E01F9/623; E01F9/627; E01F9/629; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
169 words
A yieldable post suitable for use as a slalom pole, safety marker, boundary indicator or the like comprising; an elongated one-piece, homogeneous core of a flexible, self-redressing material extending throughout substantially the entire length of said post and being capable of flexing into approximately a right angle at any point along the length of said core in response to a force applied thereto transverse to the central axis thereof and of returning to its elongated configuration upon removal therefrom of said force which caused said flexing of said core, an elongated, hollow sleeve of a flexible open mesh material which is capable of flexing with said core but which will resist impacting by an object with said sleeve internally receiving said core in close proximity thereby forming a protective covering over said core, and means retaining said core within said sleeve as an assembly whereby implantation of said assembly in a vertically retaining bore will provide a self redressing but flexible post which can withstand impact without damage thereto.
Claim 2
Dependent Claim
169 words
A yieldable post suitable for use as a slalom pole, safety marker, boundary indicator or the like comprising; an elongated one-piece, homogeneous core of a flexible, self-redressing material extending throughout substantially the entire length of said post and being capable of flexing into approximately a right angle at any point along the length of said core in response to a force applied thereto transverse to the central axis thereof and of returning to its elongated configuration upon removal therefrom of said force which caused said flexing of said core, an elongated, hollow sleeve of a flexible open mesh material which is capable of flexing with said core but which will resist impacting by an object with said sleeve internally receiving said core in close proximity thereby forming a protective covering over said core, and means retaining said core within said sleeve as an assembly whereby implantation of said assembly in a vertically retaining bore will provide a self redressing but flexible post which can withstand impact without damage thereto.
Claim 3
Dependent Claim
33 words
The post of claim 1 wherein said protective covering is formed of an open mesh, and the outside diameter of said assembly is in the range of from one inch to three inches.
Claim 4
Dependent Claim
18 words
The post of claim 1 wherein said retaining means includes end caps for receiving ends of said assembly.
Claim 5
Dependent Claim
25 words
The post of claim 3 wherein one of said end caps has an eye formed therein as integral element of said one of said caps.
Claim 6
Dependent Claim
21 words
The post of claim 1 wherein said assembly has a diameter for snugly fitting into bores of about 1.5 inch diameter.
Claim 7
Dependent Claim
18 words
The post of claim 1 wherein said core is of redressing characteristics equivalent to 3.2 pcf SPF material.
Claim 8
Dependent Claim
24 words
The post of claim 6 wherein said sleeve is of material having characteristics equivalent to a low density polyethylene in an open mesh pattern.
Claim 9
Dependent Claim
26 words
The post in accordance with claim 3 wherein said cap on at least one end of said assembly includes an opening therethrough for receiving rope-like elements.
Claim 10
Independent Claim
161 words
The method of providing a safe marker or the like for providing a visible function comprising the steps of forming a relatively straight, elongated one-piece, homogeneous core of a flexible, self-redressing material extending throughout substantially the entire length of said post and being capable of bending to approximately a right angle at any point along the length of said core relative to the central axis of said core in response to application of a force to said core and of self redressing to said straight, elongated configuration in the absence of said force, encasing said core in am impact resistant sleeve of a flexible, open mesh material for protecting said core from damage upon impact while flexing with said core, but allowing return of said core to its relatively straight, elongated configuration after removal of an impact force from said sleeve, implanting said encased core in a bore for retaining it in a substantially extended orientation for establishing a visible post.
Claim 11
Independent Claim
161 words
The method of providing a safe marker or the like for providing a visible function comprising the steps of forming a relatively straight, elongated one-piece, homogeneous core of a flexible, self-redressing material extending throughout substantially the entire length of said post and being capable of bending to approximately a right angle at any point along the length of said core relative to the central axis of said core in response to application of a force to said core and of self redressing to said straight, elongated configuration in the absence of said force, encasing said core in am impact resistant sleeve of a flexible, open mesh material for protecting said core from damage upon impact while flexing with said core, but allowing return of said core to its relatively straight, elongated configuration after removal of an impact force from said sleeve, implanting said encased core in a bore for retaining it in a substantially extended orientation for establishing a visible post.
Claim 12
Dependent Claim
26 words
The method in accordance with claim 9 wherein said implanting step includes the step of incorporating said encased core as a gate in a slalom course.
Claim 13
Dependent Claim
47 words
The method in accordance with claim 9 which includes the step of implanting a plurality of said encased cores in a ski lift line location, and attaching elongated material between the tops of said implanted encased cores for defining a selected maze for said ski lift line.
References Cited (Backward Citations)
US243696A
Cited
US3302347A
Cited
US3547162A
Cited
US3969853A
Cited
US4265972A
Cited
US4491438A
Cited
US4599012A
Cited
US4702639A
Cited
US4636109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-12-19 | 1998-06-20 | 1998-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-19 | 2002-06-20 | 2002-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-19 | 2006-06-20 | 2006-12-20 | $7700.00 | Window Closed / Lapsed |