Title: Hydraulic coupling mechanism

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Claims: I claim:

1. A hydraulic coupling mechanism for bicycles comprising:

at least a pair of opposed spaced apart channel members;

a rectangular member having a pair of opposed sides which are disposed slidably along said opposed channel members and a pair of opposed free sides, said rectangular member having a generally elliptical opening at the middle thereof;

a drive shaft disposed normally through said elliptical opening in said rectangular member;

means for rotating said drive shaft;

a cam disposed eccentrically on said drive shaft and within said elliptical opening to reciprocate said rectangular member upon rotation of said shaft;

a pair of transmitting hydraulic cylinders disposed in close proximity to the opposed free sides of said rectangular member, each of siad transmitting hydraulic cylinders having a corresponding piston rod the outer end of which is connected to the adjacent free opposed side of said rectangular member;

a pair of hydraulic receiving cylinders operably and synchronously connected to said transmitting hydraulic cylinders each of said hydraulic receiving cylinders having a corresponding piston rod; and

a crankshaft operably connected to said piston rods of said hydraulic receiving cylinders, said crankshaft serving as the shaft of the rear wheel of said bicycle.
Other info:

Inventors: Roces, Rafael Tuti

Application Number: 465098
Filing Date: 1974-04-29
Publication_date: 1976-02-17
Assignee:
Primary Class(es): 60/536 60/581
Other Classes:
US Patent Ref:

386116	Jul, 1888	DuBois	60/536.
2584659	Feb, 1952	Audemar et al.	60/536.
2597050	May, 1952	Audemar	60/536.
2924944	Feb, 1960	Matlachowsky	60/581.
3548594	Dec, 1970	Ceppi	60/581.
3645126	Feb, 1972	Karlowetz et al.	60/581.

Other Refs:
Primary Examiner: Schwadron, Martin P.
Assistant Examiner: Burks, Sr., H.
Attorney: