"Telephone, n. An invention of the devil which abrogates some of the advantages of making a disagreeable person keep his distance. "
|4948334||Displacement type rotary induction-blower machine|
A displacement type rotary air blower which, as a single-stage unit, comprises a single impeller (1) encased between a first half-shell (2) and a second half-shell (3), and in a two-stage version, two such impellers (1, 1a) in a casing formed from two out...
|4392777||Pump or blower, in particular for heating and air-conditioning systems|
A pump or blower device particularly for heating and air conditioning systems is provided with a plurality of inlet ports and a plurality of outlet ports. Axially displaceable impeller means are moved to connect any one inlet port selectively with a first...
|4204800||Multistage side channel compressor|
An improved side channel compressor wherein the compressor comprises first and second compressor stages each including first and second housing halves. In accordance with the invention, the inner housing halves (i.e., the second housing half of the first ...
|4060981||Diverter valve for coannular flows|
A valve for controlling the fluid flow between two generally coannular ducts. The valve is provided with a pair of back-to-back, mutually facing flow mixers of the daisy variety, each associated with a section of the coannular ducts. Each mixer transists ...
|4052845||Variable ratio bypass gas turbine engine with flow diverter valve|
A variable ratio bypass turbojet engine comprising a front fan core engine and a forward fan connected thereto by an inverter valve arrangement which comprises a fixed forward duct system and a fixed after duct system selectively shaped and joined by flap...
|3972349||Variable ratio bypass gas turbine engine with flow diverter|
An inverter valve arrangement which comprises a fixed forward duct system having concentric annular passages at its inlet and a fixed after duct system having concentric annular passages at its outlet and each fixed system having selectively shaped adjace...