US4326668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low cost vehicle traction device employing pivotally mounted anchoring means
Assignee: TG STRIPS Inc AN ILL CORP
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Filing: 1980-04-14
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Granted: 1982-04-27
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Expires: 2000-04-14
Abstract
Abstract Vehicle traction devices for passenger cars and alike including a flexible belt-like traction mat with transverse corrugations on one side and substantially smooth on the other side. In one embodiment, one end of the mat is secured to anchoring means including a flexible anchoring pad and ground gripping element. In another embodiment, the mat is secured to a bridge having cleats for anchoring the device to the ground. In use, the traction mat is first arranged to form a loop relative to the anchoring means. With its corrugations facing a tire and its smooth side facing the ground, the traction mat will easily be drawn under a spinning wheel until that end of it, which is secured to the anchoring means, becomes choked by the anchoring means. The tractive effort then developed causes the anchoring means to become wedged and thus assuring its fixed position, whereby the traction mat is prevented from being propelled away by the driven wheel.
Inventors
- 👤 Thorvald G. Granryd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:25
CPC Classifications
F; F16; F16G; F16G11/00; F16G11/12; B; B60; B60C; B60C27/00; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10279
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
244 words
An assembly for providing a traction surface under the drive wheel of a vehicle comprising base means adapted to be positioned adjacent to a drive wheel of a vehicle, said base means including cleat means adapted to engage the surface supporting the drive wheel of the vehicle and anchor said base means, elongated flexible traction means having a first end affixed to said base means, said elongated traction means including a first surface having a friction enhancing surface for contacting with the driving wheel and a second surface having a substantially smooth surface for contacting with the surface supporting the drive wheel, said elongated flexible traction means having a free end portion adapted to be positioned adjacent the drive wheel of the vehicle between the drive wheel and said base means, said elongated flexible traction means being looped upon itself between the first end affixed to said base means and the drive wheel of the vehicle through at least a portion of said base means during positioning of said free end portion adjacent the drive wheel, and said elongated flexible traction means forming a traction surface to extricate the vehicle as said free end portion is drawn beneath the drive wheel of the vehicle with said first friction enhancing surface in engagement therewith and said second substantially smooth surface passing over the vehicle supporting surface during rotation of the drive wheel while said first end portion is anchored against movement by said base means.
Claim 2
Dependent Claim
244 words
An assembly for providing a traction surface under the drive wheel of a vehicle comprising base means adapted to be positioned adjacent to a drive wheel of a vehicle, said base means including cleat means adapted to engage the surface supporting the drive wheel of the vehicle and anchor said base means, elongated flexible traction means having a first end affixed to said base means, said elongated traction means including a first surface having a friction enhancing surface for contacting with the driving wheel and a second surface having a substantially smooth surface for contacting with the surface supporting the drive wheel, said elongated flexible traction means having a free end portion adapted to be positioned adjacent the drive wheel of the vehicle between the drive wheel and said base means, said elongated flexible traction means being looped upon itself between the first end affixed to said base means and the drive wheel of the vehicle through at least a portion of said base means during positioning of said free end portion adjacent the drive wheel, and said elongated flexible traction means forming a traction surface to extricate the vehicle as said free end portion is drawn beneath the drive wheel of the vehicle with said first friction enhancing surface in engagement therewith and said second substantially smooth surface passing over the vehicle supporting surface during rotation of the drive wheel while said first end portion is anchored against movement by said base means.
Claim 3
Dependent Claim
21 words
The assembly according to claim 1 wherein said base means includes a bridge member having a pair of spaced parallel sections.
Claim 4
Dependent Claim
13 words
The assembly according to claim 2 wherein said bridge includes an H-shaped configuration.
Claim 5
Dependent Claim
27 words
The assembly according to claim 2 wherein said parallel sections are adapted to be arranged in straddling relationship to at least a portion of the drive wheel.
Claim 6
Dependent Claim
23 words
The assembly according to claim 2 wherein said elongated traction means is looped above said base means and extends between said parallel sections.
Claim 7
Dependent Claim
18 words
The assembly according to claim 1 wherein said first surface further includes at least one gripper assembly means.
Claim 8
Dependent Claim
17 words
The assembly according to claim 6 wherein said gripper assembly means includes nut and bolt assembly means.
Claim 9
Dependent Claim
23 words
The assembly according to claim 6 wherein said gripper assembly means includes flanged nut and bolt assembly means, extending above said first surface.
Claim 10
Dependent Claim
26 words
The assembly according to claim 1 wherein said first end of said elongated flexible traction means is affixed to the base means by bolt assembly means.
Claim 11
Dependent Claim
38 words
The assembly according to claim 9 wherein said bolt assembly means includes at least one shaft member projecting downward from said base means and adapted to engage the vehicle support surface to aid in anchoring said base means.
Claim 12
Dependent Claim
26 words
The assembly according to claim 1 wherein said base means includes a plurality of upper spaced projections positioned on the top surface of said base means.
Claim 13
Dependent Claim
22 words
The assembly according to claim 1 wherein said cleat means includes a plurality of flat members having a sharp edge oriented downward.
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) | 1985-04-26 | 1985-10-26 | 1986-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-26 | 1989-10-26 | 1990-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-26 | 1993-10-26 | 1994-04-27 | $7700.00 | Window Closed / Lapsed |