Titan Technologies International, Inc.

C-cor.net Corporation

James A Jamra

Peter A Rosa

Marvin W Burkhalter, Iii

Joseph F Chiappetta

A semiconductor laser diode for transmitting optical signals in a telecommunications network is housed within a module supported adjacent to a thermoelectric cooling element that is mounted in thermally conductive contact with a heat sink. The cooling element is positioned externally on the surface of the module. The adjacent surface areas of the module and the cooling element are brought into thermal conductivity by a thermally conductive filler occupying the space between the module and the cooling element. The filler conforms to the configuration of the adjacent surfaces of the module and the cooling element to increase the thermal conductivity therebetween for maximum efficiency in the transfer of heat from the laser diode through the module to the cooling element and the heat sink. In response to a change in the temperature of the laser diode, the current applied to the cooling element is adjusted to increase or decrease the current and accordingly sink heat from the laser diode or supply heat to the laser diode. By removing the cooling element from internally within the laser module, the manufacturing cost of the laser module is substantially reduced.

Method and apparatus for controlling the temperature of a laser module in fiber optic transmissions

The present invention relates to a flow regulation device for mitigating over travel of a piston in a fluid operated tool. The flow regulation device includes a flow channel through which flows an operating fluid to be supplied to operate the piston within the tool and a movable flow restrictor within the flow channel. The flow restrictor has an internal fluid passageway for regulating the flow rate of the operating fluid being supplied to the tool to operate the piston. The flow restrictor also has a frustoconical portion which mates or seats against a portion of the flow channel as fluid is being supplied to operate the piston. A spring is provided to insure that the frustoconical portion seats against the mating portion of the flow channel. When the piston is retracted and operating fluid is being returned to a supply, the force applied by the spring is overcome and the flow restrictor is moved so that the frustoconical portion is unseated from the mating portion.

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Madison, CT, United States of America

James A Jamra