Sonic Cleaner Helps Boiler
Run More Efficiently, Lowers
Operating Cost
Infrasonik Inc. of Baltimore, a sub-
sidiary of Infrasonik AB of Sweden, is
a pioneer and market leader for low-
frequency sound soot removal equip-
ment. Infrasonik's technology is based
on maintaining a constant level of
infrasound in the boiler with a low
frequency (approximately 20 Hz) and
long wavelength (17 to 30 m). The
equipment is called InfrafoneR sonic
cleaner, and it consists of a sound
generator connected to a quarter
wavelength resonance tube. The
Infrafone is running continuously,
so all heat transfer surfaces are
continuously kept clean. This re-
sults in a higher boiler efficiency,
and in the end, lower operating
costs. For more information from
Infrasonik, Inc.,
Circle 75 on Reader Service Card
SIMRAD Robertson Debuts
New Trawl Net Monitor
Building on the features of its
previous trawl sonar system,
SIMRAD Robertson, Inc. introduced
the FS 900 Trawl Monitoring Sys-
tem, which is designed as a full-
feathered net monitoring system for
trawl fisheries. The FS 900 uses
specially-designed rotating sonar
heads to closely watch underwater
activity. Three systems are avail-
able, from a basic, cost-effective so
nar with operating depths of 401
fathoms, to the complete systen
which includes water temperatun
and catch indicators with an operat
ing depth of 950 fathoms.
For more information ,
Circle 70 on Reader Service Card
Underwater Paint System
No Longer Experimental
Richard W. Welsford, presidenl
of the company which manufactures
and promotes the Hycote™ 151 fam-
ily of underwater epoxy paints, be-
lieves the technology has now proven
itself in the marine market. Since
their inception in Australia in the
early 1980s, the products have been
used on various submerged marine
structures worldwide.
Hycote was specifically developed
to be applied economically by hand,
or mechanically, above or below the
waterline. Citing a satisfied cus-
tomer as an excellent marketing tool,
Mr. Welsford explains the experi-
ences Seaward Marine has had with
Hycote. Seaward successfully ap-
plied Hycote across a broad spec-
trum of ambient conditions under-
water, applications ranging from the
Persian Gulf in August to the North-
ern Atlantic in December, from ar-
eas as small as 10 square feet to as
much as 1,200 square feet.
David Allan, vice president of
U.T. Technologies Ltd. said, "The
real proof appears when vessels are
drydocked. Our coatings that were
applied properly underwater are per-
forming better than those applied
during a previous drydocking. Own-
ers often are specifying Hycote for
the stabilizing fins, struts and rud-
ders, where few other coatings sur-
vive," said Mr. Allan.
For more information on the
Hycote line from U.T. Technologies,
Circle 72 on Reader Service Card
FCC-Approved Radar
Reportedly Helps Cut
Operator Fatigue
The Sperry Marine MK-4217R
Rasterscan River Radar, already
proven on European rivers, has re-
ceived FCC approval and can now
be sold in the U.S. Designed specifi-
cally for use on rivers, the new radar
consists of two units: a seven-foot or
nine-foot antenna/transceiver and
the display. A membrane-type illu-
minated keyboard is used to control
the display. The new high-defini-
tion radar presentation is free of
flicker and jitter, which can help cut
down on operator fatigue. The
MK4217R River Radar is a break-
through in display technology for
river and waterway applications
with its specific close range and con-
fined water navigation, said com-
pany vice president John V.
DeMaso. For more information on
the new Sperry radar,
Circle 73 on Reader Service Card
The, Gulf Coast's
best bet for
ship repair
is now
even better.
For more than 70 years, Bender has been the leading ship repair
facility on the central Gulf of Mexico. Now, we're even better.
Along our 7,000 feet of deep water frontage, we've built new yards
and wet docks, improved equipment, and added dry docks to raise
lifting capacities to 20,000 tons. These modern Panamax facilities
and an around-the-clock workforce put muscle behind our promise
of fast, reliable ship repair. Now, more than ever, Bender is your
best bet for ship repair on the Gulf of Mexico.
BENDER
SHIPBUILDING & REPAIR CO., INC.
265 South Water Street • Mobile, Alabama 36603 USA • P.O. Box 42 • Mobile, Alabama 36601 USA • (205) 431-8000 • FAX (205) 432-2260 • Telex 505457
Circle 205 on Reader Service Card
Stearns is made to shrug-off the worst that four seasons and seven seas can throw at any workers on any job. Keeps them safer
and drier without restricting movement or productivity. Choose from the full line of flotation and DryiWear" garments by Stearns
... the most trusted name on the water. For more information call 1-800-328-3208. Those Who KnowThe Sea
Know Stearns.
STEARNS • P.O. Box 1498 • St. Cloud. MN 56302
A an Anthony Industries company
Circle 252 on Reader Service Card
Digital Wave Publishing