Bicycle frame

Details Bicycle frame Bicycle frame

1990-09-11

1992-01-14

Marmor, Charles A.

Land vehicles

Wheeled

Occupant propelled type

2802811, 280283, B62K 1902

Patent

active

050803840

ABSTRACT:
A bicycle frame having a front frame portion with a rearwardly extending crossbar of elliptical cross-section, the major elliptical axis of which is vertically oriented. The rear of the crossbar is gradually tapered by flattening and widening into a substantially equilateral triangular configuration and then sharply reduced to an oblong horizontally extending opening where it is connected to a rear frame by a flexible spring connection.

REFERENCES:
patent: 433172 (1890-07-01), Jett
patent: 441649 (1890-12-01), Dunlop
patent: 453514 (1881-06-01), Sheir
patent: 463710 (1891-11-01), Mathews
patent: 591306 (1897-10-01), Tolson
patent: 602034 (1898-05-01), Murphy
patent: 701967 (1902-06-01), Titus
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patent: 4202561 (1980-05-01), Yonkers
patent: 4293141 (1981-10-01), Brilando
patent: 4484756 (1984-11-01), Takamiya et al.
patent: 4669747 (1987-06-01), Groendal
patent: 4792150 (1988-12-01), Groendal et al.
patent: 4902160 (1990-02-01), Jeng

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