Endless drive system
Patent 4093318 Issued on June 6, 1978. Estimated Expiration Date: 
June 6, 1995. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 6, 1995. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorApplicationNo. 648527 filed on 01/12/1976US Classes:305/157, ENDLESS BELT HAVING NONMETALLIC TRACK OR TREAD305/34, INFLATABLE MEANS305/137, Including structure to engage track (e.g., wear surface, cushion)305/184, With friction drive structure305/195Sprocket and track engagementExaminersPrimary: Knowles, Allen N.Assistant: Shannon, John P. Attorney, Agent or FirmInternational ClassB62D 055/20AbstractAn endless drive system suitable for use as an endless belt, an endless chain drive or an endless track vehicle drive system. The endless drive system includes endless drive sections, with sloped sides to shed dirt or other foreign objects, and fasten pivotably connecting the endless drive sections. In preferred embodiments, shields are provided to prevent entry of dirt or other foreign objects. As an endless track vehicle drive system, the invention provides improved operation on soft surfaces and increased strength.Field of SearchINFLATABLE MEANSResilient compressible hinge Adjustable connection between treads Track treads interconnected without separate fastening means MISCELLANEOUS With track-related steering means Deformable ground engaging part With plural spring types With coil spring Spring encircling rigid annulus | |
