![]() ![]() Each spike is fabricated as a single piece from an ultra-lightweight ceramic material. Lastly, the lower section also has two opposed planar sections extending downwardly on each side from the central section to an intermediate point thereof. ![]() In addition, the lower section also has intermediate regions of varying diameters between the uppermost and lowermost regions, the intermediate regions having downwardly tapering generally cone-shaped lower edges. The lower section also has an axis co-extensive with the central and upper sections and a lowermost region with a circular cross-sectional configuration. Lastly, a lower section is provided having an uppermost region with a generally circular cross-sectional configuration with an exterior diameter less than that of the central sections. It also has an upper section in a generally cylindrical configuration extending upwardly from the central section with a threaded exterior face for removable attachment to and removable attachment from the track shoe of a wearer, the exterior diameter of the upper section being less than the exterior diameter of the central section. The spike has a central section in a cylindrical configuration having a first enlarged exterior diameter. B62D55/28- Ground engaging parts or elements detachableĪ spike for track shoes is disclosed.B62D55/26- Ground engaging parts or elements.B62D55/08- Endless track units Parts thereof.B62- LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS.Assignors: GRANT, DAVID Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). ![]() reassignment OMNI-LITE INDUSTRIES INTERNATIONAL, INC. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by David Grant filed Critical David Grant Priority to US09/469,556 priority Critical patent/US6352319B1/en Application granted granted Critical Publication of US6352319B1 publication Critical patent/US6352319B1/en Assigned to OMNI-LITE INDUSTRIES INTERNATIONAL, INC. Original Assignee David Grant Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US09/469,556 Inventor David Grant Current Assignee (The listed assignees may be inaccurate. Google Patents US6352319B1 - Track spikeÄownload PDF Info Publication number US6352319B1 US6352319B1 US09/469,556 US46955699A US6352319B1 US 6352319 B1 US6352319 B1 US 6352319B1 US 46955699 A US46955699 A US 46955699A US 6352319 B1 US6352319 B1 US 6352319B1 Authority US United States Prior art keywords spike section central track lower section Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
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