EARLE E SIMPSON
Electrician in Haverhill, MA
License number
Massachusetts 18403
Expiration Date
Jun 30, 1990
Type
Electrical Engineer
Address
Address
Haverhill, MA 01833
Personal information
See more information about EARLE E SIMPSON at radaris.comName
Address
Phone
179 Nelson St, Georgetown, MA 01833
Professional information
Method Of Hydrothermally Growing Quartz
US Patent:
4030966, Jun 21, 1977
Filed:
Jun 27, 1975
Appl. No.:
5/590888
Inventors:
Carl F. Hornig - Kingston NH
Kenneth M. Kroupa - Lee NH
Earle E. Simpson - Georgetown MA
Kenneth M. Kroupa - Lee NH
Earle E. Simpson - Georgetown MA
Assignee:
Western Electric Company, Inc. - New York NY
International Classification:
B01J 1704, C01B 3312
US Classification:
156623Q
Abstract:
This invention relates to a method of growing a single quartz crystal stone. In particular, a method for hydrothermally growing a quartz stone from a quartz seed is disclosed. A substantially stress-free quartz stone is grown in an autoclave by clamping a quartz crystal seed plate in a clip so as to permit substantially unobstructed growth of the stone in the plane of the seed plate, and growing at least a portion of the stone through at least one aperture formed in the clip.