Brakes – Elements – Shoes
Reexamination Certificate
1998-07-20
2004-03-02
Lavinder, Jack (Department: 3683)
Brakes
Elements
Shoes
C188S25000B, C188S25000B
Reexamination Certificate
active
06698556
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATIONS
Not Applicable.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable.
REFERENCE TO A MICROFICHE APPENDIX
Not Applicable.
BACKGROUND OF THE INVENTION
Most vehicles, on or off road, utilize a form of disk brakes for their deceleration. The disk brake system incorporates a flat rotating disk aligned with the vehicle's axles. Two or more flat pads lay against the disk. When braking is desired the pads are pressed tight against the rotating disk and cause it to slow its rotation, and hence the vehicle slows down. During braking, these pads are pressed against the disk either hydraulically or pneumatically through mechanical devices called calipers.
This current traditional or “flat” brake pad system has several drawbacks. The pads lie flat against the disks and are therefore in constant contact with it. This contact generates constant friction, even when it is not needed. The friction must be counteracted by the vehicle's engine and therefore reduces fuel efficiency. The friction also generates high amounts of heat. This heat is detrimental to the brake's effectiveness by reducing the overall braking energy of the system.
BRIEF SUMMARY OF THE INVENTION
This invention, by its design, would counteract all of the above disadvantages of the current disk brake system. Basically the “CURVED BRAKE PAD” is a brake pad that is flexible and slightly curved in the middle. The curved brake pad does not come in total contact with the rotating disk. It simply touches the disk on each of the ends. The curved pad is made of a pliable material which would bend flat and come in whole contact with the disk when needed but flex back to its curved position when the caliper pressure was removed. Since the curved pad is not in constant contact with the rotating disk, it does not generate the high friction that a traditional “flat” pad does. This reduced friction would yield higher fuel economy for the vehicle and less wear for the pad therefor requiring fewer replacements. The reduced friction would also generate less heat. The cooler operating temperature would give the system better braking capability through a higher braking energy.
REFERENCES:
patent: 3412835 (1968-11-01), Goldberg
patent: 3430738 (1969-03-01), Dain et al.
patent: 4676347 (1987-06-01), Rees
patent: 5231861 (1993-08-01), Tokumura et al.
patent: 5499705 (1996-03-01), Ide
patent: 2439631 (1976-02-01), None
patent: 08135698 (1996-05-01), None
Lavinder Jack
Sy Mariano
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