GEORGE F LEWIS
Broker in Lowell, MA
License number
Massachusetts 51100
Issued Date
Mar 1, 1966
Expiration Date
Jun 21, 1982
Type
Broker
Address
Address
Lowell, MA 01851
Personal information
See more information about GEORGE F LEWIS at radaris.comName
Address
Phone
50 Highland St UNIT 236, Taunton, MA 02780
49 Whipple Rd, Billerica, MA 01821
Professional information
See more information about GEORGE F LEWIS at trustoria.com
Solid Pellet Feeder For Controlled Melt Replenishment In Continuous Crystal Growing Process
Solid Pellet Feeder For Controlled Melt Replenishment In Continuous Crystal Growing Process
US Patent:
5242667, Sep 7, 1993
Filed:
Jul 26, 1991
Appl. No.:
7/736703
Inventors:
Jurek K. Koziol - Nashua NH
Jonathan A. Talbott - Nashua NH
Kedar P. Gupta - Merrimack NH
George F. Lewis - Lowell MA
Jonathan A. Talbott - Nashua NH
Kedar P. Gupta - Merrimack NH
George F. Lewis - Lowell MA
Assignee:
Ferrofluidics Corporation - Nashua NH
International Classification:
C30G 1502
US Classification:
422249
Abstract:
The present invention is directed toward a feeder system for replenishing the melt in a crystal growing system that utilizes a heated crucible containing a pool of melted charge material from which a seen is withdrawn to grow the crystal. The feed system utilizes a storage hopper for storing solid pellets of the charge material. The storage hopper is provided with an opening at the bottom thereof which allows pellets to flow out of the hopper. A rotating plate is provided below the opening for collecting pellets that flow from the opening and enables piles of pellets to be formed thereon. A wiper is provided that extends across a portion of the plate and, as the plate is rotated, contacts the pellet piles to wipe pellets off of the plate. Thereafter, the pellets are collected and sourced to the melt to accomplish replenishment thereof.