Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1990-03-02
1991-07-09
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51319, 51419, 51426, B24C 100, B24C 308, B24C 320, B24C 900
Patent
active
050294199
ABSTRACT:
A soft synthetic resin, such as polyurethane, body is molded onto a metallic steering wheel frame except for a part thereof intended for installation of the steering wheel onto a column shaft and a soft burr formed on the resultant covered steering wheel along the parting line of the mold is removed by refrigerating the steering wheel to make the burr hard and fragile and then removing the burr by shot blast treatment, whereafter the steering wheel is heat dried to eliminate water from the atmosphere condensing on the exposed metallic installation part of the steering wheel and prevent resulting corrosion of that part.
REFERENCES:
patent: 2276345 (1942-03-01), Rosenberger
patent: 3146550 (1964-09-01), Millhiser et al.
patent: 3720021 (1973-03-01), Wada
patent: 4312156 (1982-01-01), McWhorter
patent: 4524548 (1985-06-01), Klee et al.
patent: 4633928 (1987-01-01), Uzak et al.
Kamijo Toshiharu
Kurachi Mitsuya
Nakayama Akinori
Sudo Kiyoshi
Nippon Sangyo Kikai Hanbai Co., Ltd.
Schmidt Frederick R.
Showa Tansan Co., Ltd.
Watson Bruce
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