Composite bicycle frame and method of manufacture
Patent 6264878 Issued on July 24, 2001. Estimated Expiration Date: 
January 20, 2019. 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 20, 2019. 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. 234330 filed on 01/20/1999US Classes:264/516, By insertion or application of a preform264/314, Utilizing fluid-expansible mold280/281.1Frames and running gearExaminersPrimary: Hurley, KevinAttorney, Agent or FirmForeign Patent References
International ClassB29C 044/06AbstractA method for forming a bicycle frame comprising the initial step of placing a hollow core formed from a semi-rigid material and having a polymer impregnated fiber material applied thereto into a first mold section. A second mold section is then mated to the first mold section such that a cavity having a desired frame shape is defined therebetween. The core and the polymer impregnated fiber material applied thereto are then heated to a temperature level sufficient to make the core pliable. The core is then inflated so as to cause the polymer impregnated fiber material applied thereto to substantially conform to the shape of the cavity.Other References
Field of SearchHollow shell framesFrames and running gear Frames and running gear Low profile Rear forks One component is a fibrous or textile sheet, web, or batt Joining a plurality of superposed fibrous or textile layers Applying fluent material to preform Utilizing fluid-expansible mold Removing mold by destruction Toroidal mold bag Utilizing sheet-like material Applying heat or pressure Producing hollow work or a tubular article By insertion or application of a preform Including application of internal fluid pressure to hollow finite length preform to force same into conformity with female mold part Heating | |
