THOMAS M DOYLE
Engineering in Columbus, OH
License number
Massachusetts 43039
Issued Date
Jun 21, 2001
Expiration Date
Jun 30, 2014
Type
Structural Engineer
Address
Address
Columbus, OH 43215
Professional information
Method For Double End Stud Welding
US Patent:
4339653, Jul 13, 1982
Filed:
Nov 19, 1979
Appl. No.:
6/095322
Inventors:
Thomas E. Doyle - Columbus OH
Daniel Hauser - Columbus OH
Michael D. Hayes - Columbus OH
David C. Martin - Worthington OH
Daniel Hauser - Columbus OH
Michael D. Hayes - Columbus OH
David C. Martin - Worthington OH
Assignee:
Omark Industries, Inc. - Portland OR
International Classification:
B23K 920
US Classification:
219 99
Abstract:
Method and apparatus for simultaneously welding by the stud end welding technique a stud having two or more ends. The stud includes at least one elongated relatively thin metallic projection from each end of the stud to be welded. The method and apparatus maintains a current density in a given projection sufficient to disintegrate only a portion of each projection with consequent arc initiation upon contact with the base metal such that the disintegration of a given projection will permit the remaining projections to contact the base metal causing a short to extinguish the one arc which has been initiated and consequent disintegration and arcing of the next tip to strike the workpiece which procedure proceeds randomly from tip to tip until the ends of the stud reach the molten metal pools. The studs and footpiece for the welding gun are of a configuration to insure proper alignment of the stud with respect to the workpiece while the footpiece of the gun includes means for securing to arc shields properly in place.
Apparatus And Method For Double End Stud Welding
US Patent:
4439661, Mar 27, 1984
Filed:
May 19, 1981
Appl. No.:
6/265239
Inventors:
Thomas E. Doyle - Columbus OH
Daniel Hauser - Columbus OH
David C. Martin - Worthington OH
Michael D. Hayes - Minas Gerais, BR
Daniel Hauser - Columbus OH
David C. Martin - Worthington OH
Michael D. Hayes - Minas Gerais, BR
Assignee:
KSM Fastening Systems Inc. - Moorestown NJ
International Classification:
B23K 920
US Classification:
219 99
Abstract:
Method and apparatus for simultaneously welding by the stud end welding technique a stud having two or more ends. The stud includes at least one elongated relatively thin metallic projection from each end of the stud to be welded. The method and apparatus maintains a current density in a given projection sufficient to disintegrate the projection with consequent arc initiation. The resultant arcs melt all stud ends and plate. The molten ends are lowered into the pools at a controlled rate at which time the current is extinguished and the material solidifies.