Method of molding composite bicycle frames
Patent 4828781 Issued on May 9, 1989. Estimated Expiration Date: 
June 26, 2007. 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 26, 2007. 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 2182828 2370726 2827306 3233916 3375024 3493240 3641230 3833242 3884521 Frame for various cycles InventorsApplicationNo. 07/066435 filed on 06/26/1987US Classes:264/250, By separately molding different article portions264/155, By punching or drilling264/257, One component is a fibrous or textile sheet, web, or batt264/314, Utilizing fluid-expansible mold264/337Utilizing particular mold materialExaminersPrimary: Lowe, JamesAssistant: Durkin, II, Jeremiah F. Attorney, Agent or FirmInternational ClassesB29C 70/04 (20060101)B29C 70/44 (20060101) B62K 19/00 (20060101) B62K 19/16 (20060101) B29C 43/10 (20060101) B29C 43/12 (20060101) AbstractA method of molding a generally hollow front triangle for a bicycle frame of composite materials, such as heat curable structural resins. Layers of the composite material are shaped to form a front triangle shell and this shell is compressed against a mold using at least one inflatable bladder routed to the outside through a passageway passing through a modified bottom bracket sleeve or a modified head tube sleeve.Field of SearchOne component is a fibrous or textile sheet, web, or battJoining a plurality of superposed fibrous or textile layers Utilizing fluid-expansible mold Toroidal mold bag Utilizing sheet-like material Removing mold by destruction Applying heat or pressure Making hole or aperture in article Utilizing closed mold cavity By punching or drilling By separately molding different article portions | |
