U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Bicycle frame

Patent 4900049 Issued on February 13, 1990. Estimated Expiration Date: Icon_subject February 13, 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

3030124

Bicycle frame
Patent #: 3966230
Issued on: 06/29/1976
Inventor: Nicol

Method of molding a socket part on a synthetic resinous pipe end
Patent #: 4135961
Issued on: 01/23/1979
Inventor: Yoshizawa ,   et al.

Method of manufacturing bicycle frame by die casting and bicycle frame manufactured thereby
Patent #: 4145068
Issued on: 03/20/1979
Inventor: Toyomasu ,   et al.

Frame for automated two-wheel vehicles, and method for its manufacture
Patent #: 4561670
Issued on: 12/31/1985
Inventor: Takada

Bicycle frame
Patent #: 4583755
Issued on: 04/22/1986
Inventor: Diekman ,   et al.

Bicycle frame
Patent #: 4598922
Issued on: 07/08/1986
Inventor: Kleinebenne ,   et al.

Frame joint construction for bicycles and the like Patent #: 4648616
Issued on: 03/10/1987
Inventor: Diekman ,   et al.

Inventor

Application

No. 002864 filed on 01/13/1987

US Classes:

280/281.1, Frames and running gear156/294, Core within tube228/154, For telescoping sleeve228/165, Forming channel, groove, or aperture for reception of filler material403/265, MOLDED JOINT403/268, Socket or open cup for bonding material403/292MEMBER ENDS JOINED BY INSERTED SECTION

Examiners

Primary: Hill, Mitchell J.

Attorney, Agent or Firm

Foreign Patent References

  • 2523541 FR 09/13/1983

International Class

B62K 019/22

Abstract

A bicycle frame having an improved lug design is disclosed. The inner lug has a first external diameter and a second external diameter with the first external diameter being longer than the second external diameter the circumference of the second external diameter has at least two flanges which are shorter than the length of the second external diameter. The circumference about these flanges is equal to the circumference about the first external diameter of the lug. The tube to which the inner lug is joined has a first internal diameter and second internal diameter, the first internal diameter being at the free end of the tube and larger than the other external diameter. The length of the first internal diameter is at least equal to the sum of the length of the first external diameter and the flanges of the inner lug. The second internal diameter of the outer lug is larger than the second external diameter of the inner lug.

PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$16.95more info
 
Sign InRegister
Username  
Password   
forgot password?