Gravity dampened guidance system

Details Gravity dampened guidance system Gravity dampened guidance system

1979-08-09

1981-05-12

Lutter, Frank W.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including specific material of construction

422246, 156608, 156617SP, 156DIG88, C30B 3500, C30B 1534

Patent

active

042671531

ABSTRACT:
A crystal growth guidance mechanism for use in crystal growing apparatus. The guidance mechanism, which is disposed between a crystal puller and a crystal forming die comprises a plurality of gravity damped guide rods mounted on ramped supports. The rods have sufficient mass and number so that when acting in unison the rods will provide sufficient resistance to prevent puller induced motion in the crystal from being translated down into the die top, while individual guide rods "float" on the surface of the growing crystal whereby each rod will move out of the way of any localized surface perturbations in the growing crystal.

REFERENCES:
patent: 1719946 (1929-07-01), Sherman
patent: 3206286 (1965-09-01), Bennett, Jr. et al.
patent: 3226203 (1965-12-01), Rummel
patent: 3607112 (1971-09-01), Mermelstein
patent: 4158038 (1979-06-01), Jewett

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