Method for making bicycle frames

Details Method for making bicycle frames Method for making bicycle frames

2005-09-29

2008-08-05

McDowell, Suzanne E. (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

C264S573000, C264S103000, C264S258000

Reexamination Certificate

active

07407620

ABSTRACT:
A method for making bicycle frames includes a step of preparing a seat tube and a head tube and both of which are then put in concavities of two first movable mold parts on a base board. A top tube and a down tube are prepared by carbon-fiber sheets and connected between the seat tube and the head tube. Two connection ends made by carbon-fiber sheets are connected to the seat tube. Two second movable mold parts are mounted to the first movable mold parts and air is then blown into the top tube, down tube and the two connection ends to inflate the carbon-fiber sheets to contact against inner peripheries of the concavities under high temperature and pressure to let the carbon-fiber sheets be solidified.

REFERENCES:
patent: 5368804 (1994-11-01), Hwang et al.

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