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US 5,856,396 AGranted
Rubber wheels suitable for use on a portable vehicle adhesive remover
AssigneeFisher Tool Co., Inc.
InventorHoward Vipperman
Life of this patent
Estimating the term…
Abstract
The present invention is a method of manufacturing rubber wheels and composition therefor used on a portable vehicle adhesive remover for removing pinstripes, decals, side moldings and other items adhering to a vehicle without damaging the original paint of the vehicle.
Claims12
A rubber wheel having 100 parts of rubber which contains
- (i) a stabilizing agent;
- (ii) less than 250 parts of vulcanized oil and at least 2 parts but not more than 7 parts of activating agent;
- (iii) at least 50 parts but not more than 150 parts of inorganic filler;
- (iv) less than 100 parts of processing oil;
- (v) at least 0.5% but not more that 1.5% by parts of cross-linking agent;
- and
- (vi) an accelerating agent, said rubber having a Shore A hardness of approximately 42.
4 more elements
A rubber wheel having 100 parts of rubber which contains
- (i) an appropriate amount of oil;
- (ii) at least 2 parts of activating agent;
- (iii) at least 50 parts but not more than 150 parts of inorganic filler;
- (iv) at least 0.5% but not more than 1.5% by parts of cross-linking agent;
- said rubber having a Shore A hardness between approximately 40-45.
2 more elements
An article of manufacture, comprising:
- (a) a metal stem having a cylindrical shape with a longitudinal axis and two ends;
- (b) a metal disc attached to one end of said metal stem, said disc having a major axis perpendicular to said longitudinal axis of said metal stem;
- (c) a rubber wheel surrounding said metal disc and having a major axis coplanar with the major axis of said metal disc, said rubber wheel comprising
- (i) 100 parts of a synthetic rubber,
- (ii) at least 0.5% but not more that 1.5% by parts of cross-linking agent;
- and
- (iii) an inorganic filler,
- with the amounts of said crosslinking agent and said filler being effective to adjust a hardness of said rubber wheel to a Shore A hardness of approximately 40-45.
5 more elements
Dependencies are inferred from the claim text.