Multi facet traction device
OwnerEdward R. Rubelinventor
Life of this patent
Estimating the term…
Abstract
A traction device including a bit having a penetrating surface for penetrating a riding surface. The penetrating surface defines the cross sectional area of the bit and includes a plurality of facets wherein each facet intersects a common vertex. In a second embodiment, the penetrating surface defines an oval cross section transverse to the direction of penetration into a riding surface, wherein the circumference of the cross section increases as the distance from the tip increases.
Claims16
A traction device comprising:
- (a) a stud having a cylindrical threaded portion and a support slot;
- and
- (b) a bit having a penetrating surface and a contact portion, wherein the contact portion is sized to be received in the support slot and the penetrating surface includes a plurality of facets, wherein each facet intersects a common vertex such that adjacent facets intersect along an intersection line to form a dihedral angle, and at least one dihedral angle is acute.
A traction device assembly for retaining a penetrating surface relative to a flexible track, comprising:
- (a) a stud having a threaded portion and a penetrating surface having a tip for initiating penetration of a riding surface, the penetrating surface defined by a substantially curvilinear non-circular cross section transverse to the direction of penetration into the riding surface wherein the circumference of the cross section is defined by intersecting arcuate segments to form a discontinuity in an arcuate segment and the circumference increases as the distance from the tip increases;
- and
- (b) a threaded T-nut for cooperatively engaging the threaded portion to retain the flexible track intermediate of the penetrating surface and the T-nut, the T-nut having a substantially larger cross sectional area than the stud.
A traction device assembly for retaining a penetrating surface relative to a flexible track, comprising:
- (a) a stud having an engagement portion and a penetrating surface, the penetrating surface having a tip for initiating penetration, the penetrating surface having a substantially curvilinear non-circular cross sectional area defined by intersecting arcuate segments, wherein each segment is defined by an independent radius of curvature;
- and
- (b) inner plate means for cooperatively engaging the engagement portion of the stud to retain a portion of the track between the inner plate means and the penetrating surface the inner plate means having a substantially larger cross sectional area than the stud.
A traction device assembly for retaining a penetrating surface relative to a flexible track, comprising:
- (a) a stud member having a penetrating surface and an elongate portion, the penetrating surface including a plurality of facets, wherein the facets define the periphery of the penetrating surface, and each facet intersects a common vertex such that adjacent facets intersect along an intersection line to form a dihedral angle, and at least one dihedral angle is acute;
- and
- (b) inner and outer plates connected to the elongate portion to retain a portion of the flexible track between the inner and the outer plates.
A traction device having a penetrating surface comprising a plurality of facets, wherein the facets define the periphery of the penetrating surface, and each facet is quadrilateral and intersects a common vertex such that adjacent facets intersect along an intersection line to form a dihedral angle, and at least one dihedral angle is acute.
A traction device assembly for retaining a penetrating surface relative to a flexible track, comprising:
- (a) a stud having a penetrating surface and an elongate portion, the penetrating surface including a plurality of facets, wherein the number of facets equals the number of edges formed by the facets;
- and
- (b) inner and outer plates connected to the elongate portion to retain a portion of the flexible track between the inner and the outer plates.
A traction device having a penetrating surface comprising a plurality of quadrilateral facets, wherein the number of quadrilateral facets equals the number of edges formed by the quadrilateral facets.
Dependencies are inferred from the claim text.