Hollow shell frames for bicycles and other human-powered vehicles and method for making same
January 31, 2014. 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 3533643 Foldable bicycle Bicycle frame having an assembled-unit shell structure Frame for two-wheeled vehicles Wheelchair Convertible multi-purpose toy Lightweight bicycle with improved front and rear wheel fork and method of constructing same Lightweight in-line roller skate, frame, and frame mounting system Rigid frame weldless wheelchair Patent #: 5253888 InventorsAssigneeApplicationNo. 189590 filed on 01/31/1994US Classes:280/281.1, Frames and running gear280/288.3Hollow shell framesExaminersPrimary: Focarino, Margaret A.Assistant: Hurley, Kevin Attorney, Agent or FirmForeign Patent References
International ClassesB62K 019/16B62K 019/18 AbstractA hollow shell frame for bicycles and other human powered vehicles is disclosed. The frame is constructed from plastic molded partial shells that are assembled into tubing that comprises the frame. The partial shells have protrusions and receptacles joining faces of their skins that are used to join the shells together to form the tube. This results in a lightweight, durable and aesthetically pleasing frame. In an alternative embodiment, the partial shells have protrusions and receptacles within their interiors for additional strength. Additional fasteners such as screws, bolts or rivets may be used for reinforcement of the partial shells. A method for manufacturing the frame is also disclosed. | |
