US3715146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snow cleat and track for tracked vehicle
Assignee: Individual
•
Filing: 1971-01-15
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Granted: 1973-02-06
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Expires: 1991-01-15
Abstract
Abstract A snow cleat and a track particularly adapted for use in deep snow. A track wherein snow cleats are arranged to provide greater spacings longitudinally of the track adjacent each edge of the track than centrally thereof to increase the shear strength of the supporting snow. The snow cleat may comprise two traction blade portions of different lengths defining a traction blade which is unsymmetrically arranged lengthwise of a supporting base, and an ice cleat mounted intermediate said traction blade portions. The snow track may also comprise snow blades extending the full width of the track and separating a limited number of snow cleats having traction blades positioned in staggered relation to each other transversely of the track.
Inventors
- 👤 W Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:54
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/24
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
150 words
A snow cleat for a tracked vehicle comprising an elongated base, and a single traction blade fixed to and extending longitudinally of said base along the central portion thereof, said traction blade being shorter than said base and being located extending generally unsymmetrically lengthwise of said base and having opposite ends spaced at different distances from the ends of said elongated base, said traction blade comprises a pair of traction blade portions of different lengths each having one end positioned centrally intermediate the ends of the elongated base, and said two traction blade portions extend in opposite directions from said one ends toward the ends of the elongated base whereby the other end of the shorter traction blade portion is at a greater distance from one end of the elongated base than the other end of the larger traction blade portion is from the other end of the elongated base.
Claim 2
Dependent Claim
150 words
A snow cleat for a tracked vehicle comprising an elongated base, and a single traction blade fixed to and extending longitudinally of said base along the central portion thereof, said traction blade being shorter than said base and being located extending generally unsymmetrically lengthwise of said base and having opposite ends spaced at different distances from the ends of said elongated base, said traction blade comprises a pair of traction blade portions of different lengths each having one end positioned centrally intermediate the ends of the elongated base, and said two traction blade portions extend in opposite directions from said one ends toward the ends of the elongated base whereby the other end of the shorter traction blade portion is at a greater distance from one end of the elongated base than the other end of the larger traction blade portion is from the other end of the elongated base.
Claim 3
Dependent Claim
150 words
A snow cleat for a tracked vehicle comprising an elongated base, and a single traction blade fixed to and extending longitudinally of said base along the central portion thereof, said traction blade being shorter than said base and being located extending generally unsymmetrically lengthwise of said base and having opposite ends spaced at different distances from the ends of said elongated base, said traction blade comprises a pair of traction blade portions of different lengths each having one end positioned centrally intermediate the ends of the elongated base, and said two traction blade portions extend in opposite directions from said one ends toward the ends of the elongated base whereby the other end of the shorter traction blade portion is at a greater distance from one end of the elongated base than the other end of the larger traction blade portion is from the other end of the elongated base.
Claim 4
Dependent Claim
150 words
A snow cleat for a tracked vehicle comprising an elongated base, and a single traction blade fixed to and extending longitudinally of said base along the central portion thereof, said traction blade being shorter than said base and being located extending generally unsymmetrically lengthwise of said base and having opposite ends spaced at different distances from the ends of said elongated base, said traction blade comprises a pair of traction blade portions of different lengths each having one end positioned centrally intermediate the ends of the elongated base, and said two traction blade portions extend in opposite directions from said one ends toward the ends of the elongated base whereby the other end of the shorter traction blade portion is at a greater distance from one end of the elongated base than the other end of the larger traction blade portion is from the other end of the elongated base.
Claim 5
Dependent Claim
20 words
A snow cleat as defined in claim 1, wherein an ice cleat is fixedly mounted relative to said elongated base.
Claim 6
Dependent Claim
44 words
A snow cleat as defined in claim 2, wherein said traction blade is of one piece construction and said ice cleat includes an intermediate blade portion forming part of said traction blade between said shorter traction blade portion and said longer traction blade portion.
Claim 7
Dependent Claim
36 words
A snow cleat as defined in claim 3, wherein a traction point made of hard facing material is fixed to said intermediate blade portion and points away therefrom such as to define therewith said ice cleat.
Claim 8
Dependent Claim
108 words
A snow cleat as defined in claim 2, wherein said ice cleat is defined by a post fixed to said base relatively centrally intermediate the ends thereof and extending away therefrom with one end of said post pointing away from said base, said traction blade is of one piece construction defining an intermediate traction blade portion joining said shorter traction blade portion to said longer traction blade portion, said intermediate traction blade portion extends transversely of said elongated base and forms angles with said shorter traction blade portion and said longer traction blade portion, and said post is located in the corner defined by one of said angles.
Claim 9
Dependent Claim
93 words
A snow cleat as defined in claim 5, wherein said traction blade has a side thrust plate portion extending transversely of said elongated base at the outer end of said shorter traction blade portion at an angle with the latter, an ice cleat is located in a corner defined by said angle between said shorter traction blade portion and said side thrust plate portion, the latter ice cleat is defined by a post fixed to said base and extending away therefrom with one end of the latter post pointing away from said base.
Claim 10
Dependent Claim
82 words
A snow cleat for a tracked vehicle comprising a rigid elongated base, an ice cleat defined by a post jointed into endwise abutment with said base at substantially the mid-length intermediate the ends thereof and extending away therefrom with one end of said post pointing away from said base and a pair of traction blade portions fixed into edgewise engagement with said base and extending at different distances and in opposite directions away from said post towards the ends of the base.
Claim 11
Dependent Claim
82 words
A snow cleat for a tracked vehicle comprising a rigid elongated base, an ice cleat defined by a post jointed into endwise abutment with said base at substantially the mid-length intermediate the ends thereof and extending away therefrom with one end of said post pointing away from said base and a pair of traction blade portions fixed into edgewise engagement with said base and extending at different distances and in opposite directions away from said post towards the ends of the base.
Claim 12
Dependent Claim
21 words
A snow cleat as defined in claim 7, wherein said post and said traction blade portions are of one piece construction.
Claim 13
Dependent Claim
18 words
A snow cleat as defined in claim 7, wherein said two traction blade portions are of different lengths.
Claim 14
Dependent Claim
52 words
A snow cleat as defined in claim 9, wherein said post is a stud having a cylindrical periphery and wherein one end of the shorter traction blade portion and one end of the longer traction blade portion are fixed respectively on opposite sides of the periphery of the stud substantially tangentially thereto.
Claim 15
Dependent Claim
45 words
A snow cleat as defined in claim 10, wherein said base is constituted by a bar having a plane surface with a pair of parallel edges and said shorter traction blade portion and said longer traction blade portion extend one along each of said edges.
Claim 16
Dependent Claim
46 words
A snow cleat as defined in claim 10, wherein the other end of the shorter traction blade portion and the other end of the longer traction blade portion are each provided with a side thrust plate arranged at an angle relative to the traction blade portions.
Claim 17
Dependent Claim
24 words
A snow cleat as defined in claim 7, wherein said one end of the post is hardened and pointed to form a traction point.
Claim 18
Dependent Claim
118 words
A snow track for a tracked vehicle having at least one flexible elongated element and snow cleats fixed transversely to said flexible elongated element, each said snow cleat comprising a base, an ice cleat defined by a post fixed to said base intermediate the ends thereof and extending away therefrom with one end of said post pointing away from said base and a pair of traction blade portions fixed relative to said base on opposite sides respectively of said post, and extending substantially in opposite directions relative to each other towards the ends of the base, and generally unsymmetrically lengthwise of said base and having their outer ends at different distances from the ends of said elongated base.
Claim 19
Dependent Claim
118 words
A snow track for a tracked vehicle having at least one flexible elongated element and snow cleats fixed transversely to said flexible elongated element, each said snow cleat comprising a base, an ice cleat defined by a post fixed to said base intermediate the ends thereof and extending away therefrom with one end of said post pointing away from said base and a pair of traction blade portions fixed relative to said base on opposite sides respectively of said post, and extending substantially in opposite directions relative to each other towards the ends of the base, and generally unsymmetrically lengthwise of said base and having their outer ends at different distances from the ends of said elongated base.
Claim 20
Dependent Claim
91 words
A vehicle track as defined in claim 14, wherein said two traction blade portions are of different lengths to define a shorter traction blade portion and a longer traction blade portion, said traction blade is of one piece construction defining an intermediate traction blade portion joining said two traction blade portions, said intermediate traction blade portion extends transversely of said elongated base and forms angles with said shorter traction blade portion and said longer traction blade portion and said post is located in the corner defined by one of said angles.
Claim 21
Dependent Claim
90 words
A snow track for a tracked vehicle comprising at least one flexible elongated element, snow cleats having traction blades fixed to said flexible elongated element and extending transversely thereof, the dimension of the traction blades transverse of said elongated element being shorter than the width of the snow track and said traction blades being arranged unsymmetrically and in staggered relationship transversely of said elongated element and defining spaces between the traction blades lengthwise of the elongated element which are greater than the spacing between any pair of successive snow cleats.
Claim 22
Dependent Claim
90 words
A snow track for a tracked vehicle comprising at least one flexible elongated element, snow cleats having traction blades fixed to said flexible elongated element and extending transversely thereof, the dimension of the traction blades transverse of said elongated element being shorter than the width of the snow track and said traction blades being arranged unsymmetrically and in staggered relationship transversely of said elongated element and defining spaces between the traction blades lengthwise of the elongated element which are greater than the spacing between any pair of successive snow cleats.
Claim 23
Dependent Claim
49 words
A snow track as defined in claim 16, wherein said elongated snow cleats are formed into groups of a small number of consecutive snow cleats separated by a snow blade between each two successive groups, each snow blade extending transversely of said track substantially across the full width thereof.
Claim 24
Dependent Claim
45 words
A snow track as defined in claim 17, wherein the traction blades of each group are alternatively offset to one side and to the other of the track relative to the adjacent traction blades and within the confines of the lateral edges of the track.
Claim 25
Dependent Claim
49 words
A vehicle track as defined in claim 17, wherein said snow blade comprises an elongated base and an elongated angle of metal, the latter having one flange attached on said base and extending lengthwise thereof and the other flange extending away from said base and the flexible elongated element.
Claim 26
Dependent Claim
151 words
A vehicle track as defined in claim 16, wherein each snow cleat comprises a rigid elongated base fixed to said flexible elongated element transversely thereof and a traction blade fixed to and extending longitudinally of said base, said traction blade is formed of a one piece construction defining a shorter traction blade portion, a longer traction blade portion, and a pair of side thrust plate portions, said side thrust plate portions extends transversely of said elongated base at the opposite ends of the traction blade, a first ice cleat is defined by a post fixed to said base relatively centrally with respect to the length of the base, and a second ice cleat is defined by a post fixed to said base adjacent one side thrust plate portion at one of said opposite ends, and each of said first and second ice cleats has one end pointing away from said base.
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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |