Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Reexamination Certificate
1998-12-30
2001-05-01
Brittain, James R. (Department: 3626)
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
C277S384000
Reexamination Certificate
active
06224062
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates generally to a device that seals roller skate and skateboard bearings and axles from the indoor and outdoor elements and the entrapment of string.
2. Description of the Prior Art
Roller skates and skateboards currently in use have semisealed bearings and open axles. the problem with this is that centrifugal force produced during the operation mode causes water, dirt and dust to enter the bearing assembly which results in excessive churning, friction, and heat, which will break down the lubricant and eventually damage the bearings which is reductive to the performance and bearing life, also the entrapment of string or the like between the bearing and the axle which reduces performance and can cause a violent stop. This invention eliminates these problems.
SUMMARY OF THE INVENTION
The invention relates to a device to keep water, dirt and dust from entering the bearing assembly and axle, and which will keep string from being wrapped around the axle.
It is an object of the invention to provide an inexpensive means of sealing the wheel bearing assembly and axle from the indoor and outdoor elements and which does not interfere with the rotational function of the wheel bearing assembly.
Another object of this invention is to be compact in size and compatible with the wheel bearing assembly, thereby not interfering with the normal operating paths of the other components.
Yet another object of this invention is to be of a permanent fixed nature requiring no maintenance under all radial and axial loads and operating conditions.
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patent: 4919551 (1990-04-01), Numotani et al.
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patent: 5362075 (1994-11-01), Szendel
DeCanio Paul Joseph
Vanella Edward Anthony
Beres John L.
Brittain James R.
DeCanio Paul J.
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