GRANT B WEED
Land Surveyors in Bountiful, UT
License number
Utah 111671-9925
Issued Date
Aug 2, 1961
Expiration Date
Dec 31, 1999
Category
Engineer/Land Surveyor
Type
Engineer in Training - Obsolete
Address
Address
Bountiful, UT
Professional information
Magnesium Alloy Casting In Plaster Molds
US Patent:
4579166, Apr 1, 1986
Filed:
Apr 10, 1984
Appl. No.:
6/598710
Inventors:
Ramaswami Neelameggham - Salt Lake City UT
Owen K. Wheeler - Tooele UT
Grant B. Weed - Bountiful UT
Owen K. Wheeler - Tooele UT
Grant B. Weed - Bountiful UT
Assignee:
Amax Inc. - Greenwich CT
International Classification:
B22D 4600
US Classification:
164458
Abstract:
Magnesium and magnesium alloy castings are produced using porous, calcined plaster of Paris molds by filling the mold cavity and the pores communicating therewith with a pressurized inhibitor gas comprising sulfur hexafluoride and monitoring temperature conditions during cooling of the cast metal using a thermocouple placed in the mold close to the sprue whereby, in the event of an exotherm as indicated by non-decreasing temperature, the mold may be broken to prevent an explosion.