Lightweight bicycle with improved front and rear wheel fork and method of constructing same
Patent 5011172 Issued on April 30, 1991. Estimated Expiration Date: 
January 30, 2009. 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.
January 30, 2009. 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 References 3833242 Method of molding composite bicycle frames Patent #: 4828781 InventorsApplicationNo. 302948 filed on 01/30/1989US Classes:280/281.1, Frames and running gear264/258, Joining a plurality of superposed fibrous or textile layers280/288.3Hollow shell framesExaminersPrimary: Hill, Mitchell J.Attorney, Agent or FirmForeign Patent References
International ClassesB62K 019/02B62K 019/16 B62K 019/30 AbstractA lightweight bicycle frame having improved rear fork rigidity constructed by attaching the front section of a left and a right subassembly each having a "C" shaped cross-section and each being the mirror image of each other to which is attached to the rear section of the connected subassemblies to form the rear fork of the frame a third subassembly substantially in the form of an oval folded about its minor axis approximately 160 to 166 degrees which provides improved rigidity to said rear fork and a front fork similarly constructed from two "C" shaped subassemblies which are connected to each other at a tap section thereof to which is attached at a lower section thereof a third "U" shaped subassembly which provides further lightweightness to the bicycle assembled from said front fork. | |
