Mark E. Rand
Engineering at Blair Rd, Apison, TN
License number
Louisiana EI.0005261
Issued Date
May 25, 1977
Expiration Date
Mar 31, 2018
Category
Civil Engineer
Address
Address
11517 Blair Rd, Apison, TN 37302
Professional information
Method And Apparatus For Making A Transformer Core From Amorphous Metal Ribbons
US Patent:
6374480, Apr 23, 2002
Filed:
Oct 29, 1999
Appl. No.:
09/430561
Inventors:
Mark E. Rand - Apison TN
Assignee:
ABB Inc. - Raleigh NC
International Classification:
H01F 706
US Classification:
29605, 29413, 295646, 29606, 29609, 29738
Abstract:
A distributed gap core is prepared by a process comprising the steps of inter-wrapping a plurality of amorphous metal strips with a continuous amorphous metal ribbon having at least one weakened area and separating the at least one weakened area to form a joint region. The strips may comprise one or more groups of cut ribbon having substantially aligned longitudinal edges and substantially aligned transverse edges.
System For Wrapping Transformer Cores From Amorphous Metal Strips
US Patent:
6615482, Sep 9, 2003
Filed:
Feb 26, 2002
Appl. No.:
10/083182
Inventors:
Mark E. Rand - Apison TN
Assignee:
ABB Inc. - Raleigh NC
International Classification:
H01F 706
US Classification:
296021, 29413, 29456, 295646, 29606, 29609, 29605, 29738, 140147
Abstract:
An amorphous magnetic core is produced by wrapping cut strips of amorphous metal about a mandrel to form a distributed gap core. The cut strips are secured to the mandrel during assembly by wrapping the strips with amorphous metal ribbons that have been weakened in predetermined areas but not fully parted. After the core has been built to its desired size, the weakened ribbons are completely parted. This method of making an amorphous magnetic core produces a tightly wound distributed gap core without the need for a belt winder or specialized strip holding devices.