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US4588324A Expired / Lapsed US ⏱️ 0.0 years remaining

Slalom pole

Assignee: Individual
•
Filing: 1984-01-09
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Granted: 1986-05-13
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Expires: 2004-01-09
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Abstract

Abstract A pole which is adapted to be supported in the ground, includes a lower part to be placed in the ground and an upper part extending upwardly above the ground. The upper part is adapted to pivot against the lower part when subjected to an impact force from any direction. The pole includes restoring means for returning the upper portion of the pole to its normally aligned upward position following cessation of the force.

Inventors

  • 👤 Hermann Goellner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 22:05
CPC Classifications
A; A63; A63C; A63C19/00; A63C19/06; A63C19/062; E; E01; E01F; E01F9/00; E01F9/60; E01F9/623; E01F9/627

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 283 words
A slalom pole adapted to be supported in snow, ice and/or the ground, including a lower part adapted to be placed in the ground and an upper part extending upwardly above the ground and being adapted to pivot against the lower part when subjected to an impact force from a skier in any direction, comprising, in combination, said lower part including a lower portion comprising threading means for anchoring it in an upward position in the snow, ice, and/or ground, said upper part including an upper portion surmounting the lower portion and normally being aligned therewith and being pivotally movable relative to the lower part over a radius of flexure, a middle portion disposed between said upper and lower portions and normally aligned therewith and being composed of a series of superposed annular members, said lower, middle and upper portions normally forming an elongated rod-like structure presenting a substantially continuous external surface, restoring means operable to urge said upper portion to return to its normal position in alignment with said lower portion, when the upper portion has been pivoted from said normal position, said restoring means comprising two springs, one of said springs being disposed coaxially with relation to said upper portion and the other spring being disposed coaxially with relation to said lower portion, a third spring disposed within said annular members of said middle portion, thereby providing said radius of flexure, said third spring being coaxial with said first two springs, means interconnecting and engaging said first two springs, said three springs and interconnecting means cooperating to pivot said upper portion about said radius of flexure upon impact from a skier and then to return said pole to an upright position.
Claim 2
Dependent Claim 283 words
A slalom pole adapted to be supported in snow, ice and/or the ground, including a lower part adapted to be placed in the ground and an upper part extending upwardly above the ground and being adapted to pivot against the lower part when subjected to an impact force from a skier in any direction, comprising, in combination, said lower part including a lower portion comprising threading means for anchoring it in an upward position in the snow, ice, and/or ground, said upper part including an upper portion surmounting the lower portion and normally being aligned therewith and being pivotally movable relative to the lower part over a radius of flexure, a middle portion disposed between said upper and lower portions and normally aligned therewith and being composed of a series of superposed annular members, said lower, middle and upper portions normally forming an elongated rod-like structure presenting a substantially continuous external surface, restoring means operable to urge said upper portion to return to its normal position in alignment with said lower portion, when the upper portion has been pivoted from said normal position, said restoring means comprising two springs, one of said springs being disposed coaxially with relation to said upper portion and the other spring being disposed coaxially with relation to said lower portion, a third spring disposed within said annular members of said middle portion, thereby providing said radius of flexure, said third spring being coaxial with said first two springs, means interconnecting and engaging said first two springs, said three springs and interconnecting means cooperating to pivot said upper portion about said radius of flexure upon impact from a skier and then to return said pole to an upright position.
Claim 3
Dependent Claim 28 words
A pole as claimed in claim 1 wherein each portion is at least partially hollow, and each spring is disposed inside said upper, lower, and middle portions, respectively.
Claim 4
Dependent Claim 78 words
A pole as claimed in claim 1 wherein said interconnecting and engaging means comprises platform plates, one of which is located in said upper portion and the other of which is located in said lower portion, each plate engaging one end of a spring, and each plate having an aperture, and a cable extending through said apertures of said plates and a nut secured to each cable end and pressing against said platform plate, thereby pretensioning said cable.
Claim 5
Dependent Claim 30 words
A pole as claimed in claim 1 wherein said series of superposed annular members include collars and said third spring cooperates with said collars to provide said radius of flexure.
Claim 6
Dependent Claim 35 words
A pole as claimed in claim 1 further comprising means adapted to be engaged by a wrench to facilitate the twisting of the pole about its longitudinal axis to thread said pole into the ground.
Claim 7
Dependent Claim 23 words
A pole as claimed in claim 1 wherein said first two springs are compression springs and said third spring is a tension spring.
Claim 8
Dependent Claim 17 words
A pole as claimed in claim 1 wherein said threading means are detachably mounted to said pole.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-05-12 1989-11-11 1990-05-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-05-12 1993-11-11 1994-05-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-05-12 1997-11-11 1998-05-13 $7700.00 Window Closed / Lapsed

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