Patent US4312518A successfully refreshed from Google Patents.
US4312518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Braking blade and mounting therefor
Assignee: TMC Corp
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Filing: 1979-10-15
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Granted: 1982-01-26
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Expires: 1999-10-15
Abstract
Abstract A braking blade for a ski brake adapted particularly for skiing in deep snow, which blade is arranged at the end of a braking arm of a ski brake, which braking arm consists preferably of a spring wire, and is held secured against a loss, wherein the blade, viewed in the width dimension, is divided by the braking arm into a smaller braking surface which is adjacent the ski and into a larger braking surface which is remote from the ski, which braking surfaces have, in the retracted position of the ski brake, a position which is approximately parallel with respect to the longitudinal axis of the ski and in the braking position of the ski brake are arranged substantially perpendicularly with respect to the longitudinal axis of the ski.
Inventors
- 👤 Josef Svoboda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:23
CPC Classifications
A; A63; A63C; A63C7/00; A63C7/10; A63C7/1093; Y; Y10; Y10T; Y10T403/00; Y10T403/70
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
167 words
A blade for a ski brake pivotally mounted on a ski, comprising: an elongated brake arm having an enlarged and elongated mandrel on a terminal end thereof, said mandrel having an external first surface thereon; an elongated brake blade having means defining a hole therethrough and extending in the longitudinal direction and along one lateral side thereof, said hole having an interior second surface matching said first surface on said mandrel and being adapted to receive said enlarged and elongated mandrel therein, the length of said brake blade being shorter than the length of said mandrel, said brake blade having a large exterior third surface extending laterally from said one side and facing in a direction generally perpendicular to the longitudinal axis of said arm; and connecting means for releasably connecting said brake blade to said enlarged and elongated mandrel so that said first and second surfaces are operatively engaged with each other, said mandrel extending outwardly beyond both ends of said hole in said brake blade.
Claim 2
Dependent Claim
167 words
A blade for a ski brake pivotally mounted on a ski, comprising: an elongated brake arm having an enlarged and elongated mandrel on a terminal end thereof, said mandrel having an external first surface thereon; an elongated brake blade having means defining a hole therethrough and extending in the longitudinal direction and along one lateral side thereof, said hole having an interior second surface matching said first surface on said mandrel and being adapted to receive said enlarged and elongated mandrel therein, the length of said brake blade being shorter than the length of said mandrel, said brake blade having a large exterior third surface extending laterally from said one side and facing in a direction generally perpendicular to the longitudinal axis of said arm; and connecting means for releasably connecting said brake blade to said enlarged and elongated mandrel so that said first and second surfaces are operatively engaged with each other, said mandrel extending outwardly beyond both ends of said hole in said brake blade.
Claim 3
Dependent Claim
60 words
The blade according to claim 1, wherein said mandrel has, at its end adjacent said brake arm, a round cross section and at the end which is remote from said brake arm a rectangular cross section, and wherein the transition from the form with said round cross section into the form with said rectangular cross section is continuous and smooth.
Claim 4
Dependent Claim
82 words
The blade according to claim 2, wherein said brake blade has, in a longitudinal cross section thereof, a form having two parallel end surfaces, an inner side extending perpendicular to said end surfaces and an outer side extending at an angle to said end surfaces, and wherein said outer side which is arranged opposite said inner side has a shape which continuously rises from the region of said mandrel with said round cross section to the end with said rectangular cross section.
Claim 5
Dependent Claim
62 words
The blade according to claim 1, wherein said connecting means is a locking pin having a symmetrical cross section and is arranged substantially perpendicularly with respect to the longitudinal axis of said arm and generally centrally with respect to said mandrel, and wherein said locking pin extends through said mandrel in an opening provided therethrough and an opening through said brake blade.
Claim 6
Dependent Claim
71 words
The blade according to claim 1, wherein on the side of said brake blade, which side faces said brake arm, there are provided at least two angled holding members of an elastically flexible material, said holding members being arranged offset from one another at the same angle, and wherein each of said holding members has a 90° bend therein which hooks over the end of said mandrel facing said braking arm.
Claim 7
Dependent Claim
88 words
The blade according to claim 1, wherein said mandrel is cylindrical and has, in the region of the end facing said brake arm and on the periphery thereof, at least two recesses which are offset from one another at the same angle and are spherical-segmentlike, and wherein two cams are provided on said brake blade, said cams being offset corresponding to the offset of said recesses and have a shape which corresponds to said spherical-segmentlike recesses and are releasably engaged with and disengaged from each of said recesses.
Claim 8
Dependent Claim
15 words
The blade according to claim 6, wherein each cam consists of a deformable elastic material.
Claim 9
Dependent Claim
80 words
The blade according to claim 1, wherein said mandrel has a square cross section, and wherein said brake blade has a slot in its longitudinally extending side thereby defining two flanges, each of said flanges having openings therein which are axially aligned, wherein each axially aligned set of openings receives screw therein for facilitating a drawing together of said flanges, and wherein said brake blade is clampingly secured to said mandrel in response to said screw drawing said flanges together.
Claim 10
Dependent Claim
24 words
The blade according to claim 8, wherein each of said flanges has a tapered surface transferring into said exterior surface of said brake blade.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-01-25 | 1985-07-27 | 1986-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-25 | 1989-07-27 | 1990-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-25 | 1993-07-27 | 1994-01-26 | $7700.00 | Window Closed / Lapsed |