JUDITH MARIE KVENVOLD
Electrician in Salt Lake City, UT
License number
Utah 5886073-5512
Issued Date
Oct 28, 2011
Category
Electrician
Type
JE Exam Approval
Address
Address
Salt Lake City, UT
Education
UTAH ELECTRICL JOINT APPRENTICESHIP & TRAINING COM, Jan 1, 2011
Personal information
See more information about JUDITH MARIE KVENVOLD at radaris.comName
Address
Phone
5498 Morning Breeze Dr, Salt Lake City, UT 84118
Professional information
Tube Puller For Heat Exchangers
US Patent:
5621966, Apr 22, 1997
Filed:
Oct 27, 1994
Appl. No.:
8/330365
Inventors:
Charles J. Kvenvold - Kearns UT
Judith M. Kvenvold - Kearns UT
Judith M. Kvenvold - Kearns UT
International Classification:
B23P 1526
US Classification:
29727
Abstract:
A tube puller, also called a traveler, removes tubes from the tube sheet of a heat exchanger for replacement. The tubes must first be broken free from the tube sheet and moved several inches by another device not associated with the traveler. The traveler includes a frame mounting a hydraulic motor. Inside the frame, a single driver mounted on the shaft of the motor is a wheel having a toothed circumference. The teeth of the driver engage one side of the tube to be removed. An unpowered idler is positioned on the opposite side of the tube from the driver. An actuator may move the idler selectively toward and away from the driver for altering the nip between the driver and idler to initially receive the tube. The actuator then presses the idler against the opposite side of the tube, holding the tube against the driver, but has no power to advance the tube longitudinally. Together, the idler and driver apply lateral forces that tend to deform the tube and may crush the tube completely as it is pulled.