Resilient tires and wheels – Tires – resilient – Wheel securing means
Reexamination Certificate
2001-03-19
2003-01-07
Morano, S. Joseph (Department: 3617)
Resilient tires and wheels
Tires, resilient
Wheel securing means
C152S323000
Reexamination Certificate
active
06502612
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to an integral solid tire, and more particularly to a tire having a low density at center portion, and the density gradually increases towards the outer surface.
2. Prior Art
The current tires on the market are in two categories, one is an inflate tire and the other is a solid tire. The inflate tire although has a good bouncing and shock absorption character, the tire can not take heavy load or it will explode easily. The solid tire refers to the one which is designed to a heavy duty kind and especially to be used on a special circumstance, such as a steel factory or so on which is able to prevent poke by sharp objects.
A solid tire
10
, as shown in
FIG. 1
, is formed with rubber which is capable of carrying heavy load, but it has some shortcomings, for instance:
(1) The tire is lack of bouncing character, thus it is easy to crack and can not absorb the vibration from an uneven ground, and may even damage the shock absorber.
(2) This design is to place rubbers into the mold and heated with high temperature, which requires large quantity of rubber and takes more time in produce, thus, it increases the cost of production.
(3) The tire is heavy, which requires more fuel to consume.
The conventional tire structure as cited prior arts, such as U.S. Pat. Nos. 3,866,652, 4,530,386, 4,909,972, 5,073,444, 5,685,952 and 5,922,151 were mostly using an outer section to wrap an inner elastic section or an inner foam section. The inner foam section is either a different entity or different material from the outer section, thus, the character is different as well. After a certain period of consuming time, the outer section and the inner foam section will shift from each other and even peer off, which is neither safe nor durable. It also requires two different procedures in manufacture.
SUMMARY OF THE INVENTION
It is the primary object of the present invention to provide an integral solid tire, which has a good bouncing character and can absorb most of the vibration, and will not easily crack.
It is another object of the present invention to provide an integral solid tire, which simplifies the production procedure, such reduces the manufacture cost.
It is another object of the present invention to provide an integral solid tire, which uses foam material as the inner section which is light in weight, thus, it decreases the weight and saves the fuel and decreases the air pollution as well.
REFERENCES:
patent: 844821 (1907-02-01), Marks
patent: 1237227 (1917-08-01), Swartz
patent: 1823566 (1931-09-01), Maranville
patent: 2709471 (1955-05-01), Smith et al.
patent: 3949796 (1976-04-01), Bartos
patent: 4940445 (1990-07-01), DesPortes
patent: 5073444 (1991-12-01), Shanelac
patent: 5246985 (1993-09-01), Saito et al.
patent: 5788786 (1998-08-01), Yamauchi et al.
patent: 6021831 (2000-02-01), Yamauchi et al.
patent: 6286907 (2001-09-01), Meader
Morano S. Joseph
Nguyen Long Bao
LandOfFree
Integral solid tire does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integral solid tire, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integral solid tire will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3008065