- A
valveless pulsejet (or
pulse jet) is the
simplest known jet
propulsion device.
Valveless pulsejets are low in cost,
light weight,
powerful and easy to...
- The
Valveless was an
English automobile manufactured,
after lengthy development, from 1908
until 1915 in Huddersfield, Yorkshire. The
successor to the...
- engine's tailpipe, thus
creating forward thrust. The
second type is the
valveless pulsejet. The
technical terms for this
engine are acoustic-type pulsejet...
- A
natural trumpet is a
valveless br****
instrument that is able to play the
notes of the
harmonic series. See:
Clarion The
natural trumpet was used as...
- pumps,
impulse pumps,
velocity pumps,
gravity pumps,
steam pumps and
valveless pumps.
There are
three basic types of pumps: positive-displacement, centrifugal...
-
developed in
Germany in the
early 19th
century from a
traditional English valveless bugle. The
first version of a
valved bugle was sold by
Heinrich Stölzel...
-
ophthalmic veins. It was
previously thought that
veins in the area were
valveless and that this was the
major cause of the
retrograde spread, but studies...
-
siphonic flush was his invention. One such adverti****t read, "****per's
Valveless Water Waste Preventer (Patent #4,990) One
movable part only", even though...
- well as a
number (6-20) of
lower hepatic veins. All
hepatic veins are
valveless. All the
hepatic veins drain into the
inferior vena cava. The hepatic...
- The post horn is a
valveless cylindrical br****
instrument with a
cupped mouthpiece. The
instrument was used to
signal the
arrival or
departure of a post...
