Patent US3685404A successfully refreshed from Google Patents.
US3685404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-way snow grooming apparatus for ski slopes
Assignee: CACHE VALLEY BANK NA
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Filing: 1970-07-24
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Granted: 1972-08-22
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Expires: 1990-07-24
Abstract
Abstract An attachment for flat bed vehicles which combines a snow scarifier, scraper, compactor and mesh drag all in one unit to efficiently and economically groom ski slopes.
Inventors
- 👤 Blaine B Rich
- 👤 Rex M Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:54
CPC Classifications
E; E01; E01H; E01H4/00; E01H4/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
66 words
A snow-grooming bar comprising, in combination, a blade adapted to be dragged over snow; said blade being shaped to have a plurality of snow grooming surfaces; means operably connected with said blade for selectively presenting different ones of said surfaces to the snow to effect one type of grooming thereof; and a plurality of harrow teeth projecting through one of said surfaces for scarifying the snow.
Claim 2
Dependent Claim
66 words
A snow-grooming bar comprising, in combination, a blade adapted to be dragged over snow; said blade being shaped to have a plurality of snow grooming surfaces; means operably connected with said blade for selectively presenting different ones of said surfaces to the snow to effect one type of grooming thereof; and a plurality of harrow teeth projecting through one of said surfaces for scarifying the snow.
Claim 3
Dependent Claim
24 words
The combination recited in claim 1; and a mesh drag fixed to a trailing edge of said blade for leveling and smoothing the snow.
Claim 4
Dependent Claim
97 words
The combination with a vehicle having a flat bed; of an apparatus for grooming snow on ski slopes, etc., comprising a boom mounting on said bed; a blade mounted on the end of said boom for engagement with the snow; said blade being shaped to have a plurality of snow-grooming surfaces; means operably connecting said blade with said boom for selectively presenting different ones of said surfaces against the engaged snow to effect one type of grooming thereof; and a plurality of harrow teeth mounted on and projecting through one of said surfaces for scarifying the snow.
Claim 5
Dependent Claim
97 words
The combination with a vehicle having a flat bed; of an apparatus for grooming snow on ski slopes, etc., comprising a boom mounting on said bed; a blade mounted on the end of said boom for engagement with the snow; said blade being shaped to have a plurality of snow-grooming surfaces; means operably connecting said blade with said boom for selectively presenting different ones of said surfaces against the engaged snow to effect one type of grooming thereof; and a plurality of harrow teeth mounted on and projecting through one of said surfaces for scarifying the snow.
Claim 6
Dependent Claim
66 words
An elongated bar for grooming engagement with snow on ski slopes comprising a blade having an initial bend to form a snow-wedging surface, a second bend terminating said wedging surface and forming a compacting surface, a final bend to terminate the compacting surface and define a snow-cutting surface; and a plurality of harrow teeth mounted on and projecting through said wedging surface for scarifying the snow.
Claim 7
Dependent Claim
66 words
An elongated bar for grooming engagement with snow on ski slopes comprising a blade having an initial bend to form a snow-wedging surface, a second bend terminating said wedging surface and forming a compacting surface, a final bend to terminate the compacting surface and define a snow-cutting surface; and a plurality of harrow teeth mounted on and projecting through said wedging surface for scarifying the snow.
Claim 8
Dependent Claim
24 words
The combination recited in claim 4; and a mesh drag fixed to the trailing edge of said blade for leveling and smoothing the snow.
References Cited (Backward Citations)
US978498A
Cited
US1522074A
Cited
US1883404A
Cited
US2042196A
Cited
US2262415A
Cited
US2723608A
Cited
US2984026A
Cited
US3199424A
Cited
US3531161A
Cited
US3504598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |