Dual brake handle

Brakes – Vehicle – Velocipede

Reexamination Certificate

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Details

C188S344000

Reexamination Certificate

active

06209687

ABSTRACT:

TECHNICAL FIELD
The present invention relates to motorcycle or bicycle brakes. More particularly, the present invention relates to a dual handle brakes for motorcycle or bicycle brakes.
BACKGROUND ART
Braking systems for motorcycles, bicycles and all terrain vehicles are well known in the art. They differ in size, shape and components such as disc, drum or dual pad brakes. However, there is no prior art describing or claiming a dual brake system utilizing pressurized fluid and a dual master cylinder. The uniqueness of the present invention allows the brake handle to act as a single brake handle or a double brake handle by the way the user positions his/her hand.
Numerous innovations for braking systems have been provided in the prior art that are described as follows. Even though these innovations may be suitable for the specific individual purposes to which they address, they differ from the present invention as hereinafter contrasted.
In U.S. Pat. No. 4,267,746, titled, Single hand-operated dual brake actuator, by inventor Pruett, a single hand-operated actuator for effecting operation of two devices, such as the front and rear caliper brakes of a bicycle or the like. The actuator includes a base adapted to be secured to the handle bars of a bicycle and having two Bowden sliding wire or cable linkages thereon with the linkages being interconnected to a lever operated by one hand for effecting actuation of both the front and rear brakes of the bicycle via the linkages. In another version of the actuator of this invention, a mechanical power assist is provided for aiding operation of the actuator. Other US related patents include: U.S. Pat. Nos. 3,960,030, 4,267,746, 1,674,751, 1,763,096 and 1,910,527.
The above patented inventions differ from the present invention because they fail to describe or claim at least one combination of the following features depicted in the present invention such as dual master cylinder, half pipe shaped front brake handle with front brake handle inner end lever and front brake handle inner end lever adjuster, rear brake handle with rear brake handle inner end lever and rear brake handle inner end lever adjuster, and brake connector.
Numerous innovations for braking systems have been provided in the prior art that are adapted to be used. Even though these innovations may be suitable for the specific individual purposes to which they address, they would not be suitable for the purposes of the present invention as heretofore described.
SUMMARY OF THE INVENTION
The present invention relates to motorcycle or bicycle brakes. More particularly, the present invention relates to a dual handle brakes for motorcycle or bicycle brakes. The novelty of the present invention is a dual master cylinder having a split handle so that the same hand can actuate either both front and rear, or rear only. In specific types of racing such as motorcross, it is essential that only the rear wheel be braked for slides and turns. The front lever is never actuated because it is too dangerous. Conventional motorcycles have a foot pedal for the rear brake, but this is undesirable for rough motorcross conditions.
The types of problems encountered in the prior art are conventional motorcycles and terrain vehicles have for the rear brake and bicycles have two separate brake handles one on each side of the handle bar.
In the prior art, unsuccessful attempts to solve this problem were attempted namely: using foot pedals in combination with hand brakes or dual hand brakes with differing functionality. However, the problem was solved by the present invention because it activates only the front and rear brake or rear brake only never the front brake only.
Innovations within the prior art are rapidly being exploited in the field of motorcross.
The present invention went contrary to the teaching of the art which describes and claims foot pedals in combination with hand brakes or dual hand brakes with differing functionality.
The present invention solved a long felt need for a single split handle to control the front and rear brake.
The present invention produced unexpected results namely: less foot and leg injuries resulted from riders using the present invention rather than conventional foot pedals in motorcross racing.
Accordingly, it is an object of the present invention to provide a dual handle brake having a dual master cylinder, front brake handle, rear brake handle, brake connector and attacher mountable on a handle bar.
More particularly, it is an object of the present invention to provide the dual master cylinder having a dual master cylinder rear brake fluid pipe, dual master cylinder front brake fluid pipe, dual master cylinder rear brake connector, and dual master cylinder front brake connector.
In keeping with these objects, and with others which will become apparent hereinafter, one feature of the present invention resides, briefly stated, in the front brake handle having a front brake handle outer end and front brake handle inner end.
When the front brake handle inner end is designed in accordance with the present invention, it has a front brake handle inner end lever with a front brake handle inner end lever adjuster and a front brake handle inner end opening.
In accordance with another feature of the present invention, the rear brake handle has a rear brake handle outer end and a rear brake handle inner end.
Another feature of the present invention is that the rear brake handle outer has a rear brake handle outer end knob.
Yet another feature of the present invention is that the rear brake handle inner end has a rear brake handle inner end lever with a rear brake handle inner end lever adjuster and a rear brake handle inner end opening.
Still another feature of the present invention is that the brake connector has a brake connector fastener with a brake connector fastener first washer, brake connector fastener second washer, and brake connector fastener nut.
Yet still another feature of the present invention is that the attacher has an upper attacher with an upper attacher opening, a lower attacher with a lower attacher opening, and an attacher fastener with an attacher fastener nut.


REFERENCES:
patent: 4267746 (1981-05-01), Pruett
patent: 5372408 (1994-12-01), Tsuchida et al.
patent: 5918464 (1999-07-01), Pape et al.

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