Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1992-10-27
1994-08-16
Lavinder, Jack
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51 98R, 51103R, 51236, 51237R, 51241VS, 279 43, 279 437, 279 467, 279 50, B24B 1504
Patent
active
053375211
ABSTRACT:
Valve grinder comprising a grinding wheel mounted on a bench, said bench also having a surface for supporting a valve stem support stand mounted a spaced distance from said grinding wheel, said valve stem support stand comprising a pair of V-blocks and valve bearings for engaging the valve stem and an end stop. Mounted on said surface by a tandem axis pivot is a chuck for gripping the valve stem, said chuck including a positive clamping collet that engages the valve stem annularly with a plurality of contact points when the collet is squeezed between a collet spool and collet cover by a collet fork. Said chuck further rotates the valve while maintaining the positive clamping on the valve stem during the grinding operation but independently of the valve support stand.
REFERENCES:
patent: 489933 (1893-01-01), Conradson
patent: 1452508 (1923-04-01), Hervig
patent: 1533133 (1925-04-01), Nickau
patent: 1722880 (1929-07-01), Albertson
patent: 2221918 (1940-11-01), Hall et al.
patent: 2413678 (1947-01-01), Beverlin
patent: 2471921 (1949-05-01), Ashdown
patent: 2491358 (1949-12-01), Bogart
patent: 2567320 (1951-09-01), Christensen
patent: 3022082 (1962-02-01), Haviland
patent: 3025646 (1962-03-01), Thompson
patent: 3802713 (1974-04-01), Levy
patent: 4228621 (1980-10-01), Wagor
patent: 4428160 (1984-01-01), Willemsen et al.
patent: 4612735 (1986-09-01), Millay et al.
patent: 4930261 (1990-06-01), Tiegs et al.
patent: 5070653 (1991-12-01), Amundson
Drawing dated Feb. 2, 1955 showing a valve regrinder wherein valve is driven and held in place with center pulley.
Heyl Derrick
Terpstra David M.
Hein-Werner Corporation
Lavinder Jack
Wilke James A.
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