Darl M. McCoy
Residential Contractor at Frg Mtn Rd, Horse Shoe, NC
License number
North Carolina 39186
Renew Date
Jan 1, 2010
Category
General Contractor
Type
Residential
Address
Address
90 Forge Mountain Rd, Horse Shoe, NC 28759
Phone
(828) 490-4304
Professional information
Method Of Securing A Moineau Pump Stator
US Patent:
4221036, Sep 9, 1980
Filed:
Jan 4, 1979
Appl. No.:
6/000856
Inventors:
Darl M. McCoy - Horse Shoe NC
Charles W. Hawk - Cleveland TN
Charles W. Hawk - Cleveland TN
Assignee:
Olin Corporation - New Haven CT
International Classification:
B23P 1500, F01C 506
US Classification:
291564WL
Abstract:
A method of assembling progressing cavity pump of the Moineau type having a helically externally threaded rotor coacting with an internally helically threaded stator. In a Moineau pump where the pump casing is a singular tubular unit, the stator is normally bonded to the inside of a tubular housing with an adhesive. When such pumps are used to pump a corrosive fluid, such as caustic soda, the adhesive can be attached and the stator thus freed to rotate. To prevent the stator from rotating, studs are driven through the housing and into the stator. The location of these studs can be pre-marked by use of a suitable template. Also, the driven studs can be welded to the housing to prevent leakage or loosening.