Northern Telecom Limited

Renato Mariani

Fred A Huszarik

Leonard J Charlebois

Vincent C So

Richard P Hughes

Paul J Vella

A battery powered portable test instrument for detecting whether light is propagating in an optical fiber has a jaw into which the fiber is placed, the jaw being closable to press a section of the fiber into a bend having predetermined radius of curvature. If light is propagating through the fiber it is scattered and detected in a detection circuit. If the detected light is greater than the predetermined threshold, an indicator circuit is energized.

Test instrument for an optical fiber

A method of sealably encapsulating an article by using, in combination, a plastics heating and pressurizing device and a manually portable accumulator. The device has a chamber to contain plastics material and heat it into a molten state. There is a releasable coupling means to assemble the device and container together to interconnect the chamber with a reservoir inside the accumulator for transfer of the molten plastic material into the reservoir. The accumulator has means for forcing the molten material from the reservoir into a mold cavity when the accumulator has been manually transferred from the device to a mold.

Apparatus for sealably encapsulating articles

A method of sealing an article by heating solid plastic material in a chamber into a flowable state and then forcing the material from the chamber into a reservoir in a manually portable device. While in the reservoir, the material is maintained homogeneously molten and flowable and the material is forced from the reservoir into a mould cavity at a sufficiently fast rate to fill the cavity before flow passages into the cavity become blocked with hardening material.

Methods and apparatus for sealing articles

Two directional measuring device having an elongate measuring member having a distance measuring scale along its length and another measuring member to measure distance in another direction. The two members are relatively moveable in the direction of the measuring scale of the elongate member and the other member has diverging surfaces extending generally in that direction and a distance measuring scale to indicate, at spaced positions, the distance apart of the diverging surfaces.

Growing community of inventors

Kanata, Canada

Renato Mariani