Minnesota Mining and Manufacturing Company

Picanol, N.v.

Grundfos A/s

Borge R Jensen

Peter D Hodson

Eric A Baum

Paul A Robertson

Neil Emerton

Murray A Creeke

Willy M Sierens

Inhaler

An optical weft stop motion for looms with a U-shaped reed includes an optical emitter, an optical receiver, and a unitary optical conductive plate attachable disposed between the reed lamellae. The plate is provided with a recess which is substantially congruent with and adjacent to the recesses in the U-shaped reed. The optical conductive plate is provided with internal light reflecting side walls which guide the light in the shape of a beam from the emitter through the complete or almost the complete recess of the plate and reflect it further to the receiver.

Optical weft stop motion for looms with a U-shaped reed

An apparatus for controlling the operation of a pump, especially a submersible pump, and particularly for controlling a water level in connection with cellar drainage pumps, comprises at least one level detector using the principle of acoustic impedance for detecting the presence or absence of liquid to be pumped, said level detector being electrically connected to a control circuit controlling a switching device for the pump.

Submersible pumps

Growing community of inventors

Brussels, Belgium

Borge R Jensen