US4229016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety ski pole
Assignee: Individual
•
Filing: 1978-11-06
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Granted: 1980-10-21
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Expires: 1998-11-06
Abstract
Abstract A ski pole formed with a separate handle and shaft. The handle and shaft are held in normal longitudinal alignment for normal use. Means are provided to permit the handle to be moved angularly with respect to the shaft when forces above a preselected minimum are applied to the shaft and handle in different directions. The ski pole thus bends at the handle when a skier holding the ski pole has forces applied to his hand above a preselected minimum. Means are also provided for adjusting the minimum force required to permit release of the handle from longitudinal alignment with the shaft.
Inventors
- 👤 David Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:13
CPC Classifications
A; A63; A63C; A63C11/00; A63C11/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
230 words
A ski pole adapted to fold on application of a force of a predetermined minimum magnitude in a direction angular to its length, said pole comprising an upper tubular section and a separate lower tubular section, means for securing said sections in longitudinal alignment against forces angular to the length of said pole and below a preselected magnitude and for allowing said upper section to be moved to a position angular to the length of said lower section in response to forces above said preselected minimum magnitude in directions at an angle to the length of said pole, said means for securing comprising a flexible member having one end extending into said upper tubular section and the other end extending into said lower tubular section and further having a connector section secured in one of said upper and lower tubular sections and extending into the other thereof, said connector section securing said upper and lower tubular sections together when said upper and lower sections are folded in response to the applications of a force in excess of said preselected minimum, said means for securing further including a cylindrical end secured in said upper tubular section and integral with said connector section, a sleeve secured in said lower tubular section and having a hole through which said connector section extends, and means extending through said sleeve for engaging said connector section.
Claim 2
Dependent Claim
230 words
A ski pole adapted to fold on application of a force of a predetermined minimum magnitude in a direction angular to its length, said pole comprising an upper tubular section and a separate lower tubular section, means for securing said sections in longitudinal alignment against forces angular to the length of said pole and below a preselected magnitude and for allowing said upper section to be moved to a position angular to the length of said lower section in response to forces above said preselected minimum magnitude in directions at an angle to the length of said pole, said means for securing comprising a flexible member having one end extending into said upper tubular section and the other end extending into said lower tubular section and further having a connector section secured in one of said upper and lower tubular sections and extending into the other thereof, said connector section securing said upper and lower tubular sections together when said upper and lower sections are folded in response to the applications of a force in excess of said preselected minimum, said means for securing further including a cylindrical end secured in said upper tubular section and integral with said connector section, a sleeve secured in said lower tubular section and having a hole through which said connector section extends, and means extending through said sleeve for engaging said connector section.
Claim 3
Dependent Claim
28 words
A ski pole as set forth in claim 1 wherein said means extending through said sleeve comprises a spring loaded detent engaging a recess in said connector section.
Claim 4
Dependent Claim
22 words
A ski pole as set forth in claim 2 including means for adjusting the force applied by said spring or said detent.
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) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |