Abstract: A machine for making bags or pouches for transporting animal organs for transplantation. The invention machine is small and light weight, and completely sterilizable for use in this environment. The invention also includes additional features of a special corona treatment for the films forming the laminates from which the pouches are made, and heat seals added to the finished pouches to facilitate tearing open of the pouch in a proper manner even in the event of delamination of one of the films.

Abstract: A machine for making bags or pouches for transporting animal organs for transplantation. The invention machine is small and light weight, and completely sterilizable for use in this environment. The invention also includes additional features of a special corona treatment for the films forming the laminates from which the pouches are made, and heat seals added to the finished pouches to facilitate tearing open of the pouch in a proper manner even in the event of delamination of one of the films.

Abstract: A package for transporting an organ is formed from a plastic laminate. The laminate includes an inner layer of a fluorinated polyethylenepropylene copolymer and an outer layer of a polyimide. The laminates are heat sealed together around the perimeter to form a closed pouch. The thickness of the inner and outer layers of the laminate and the bond strength between the layers of the laminate are tailored to produce a peelable seal. Upon peeling the laminated sheets apart, the heat seal will tear along the edge of the seal and the inner layer will delaminate from the outer layer.

Abstract: A subminiature fiber optic submarine cable uses a single layer of stainless steel wires around the optical fiber buffer of a single optical fiber in order to protect the fiber. A polymer adhesive filler material is used to bond the wires to the outside of the optical fiber buffer, whereas an ultraviolet curable polymer portion is disposed around the wires. The filler material used to fill the gaps between the wires and the optical fiber buffer is the same material as used for the outer polymer portion. The method of making the cable includes the application of adhesive filler material to an optical fiber buffer with a catalyst and helically winding stainless steel wires around the buffer. The structure is then passed through a coating cup which coats the wires with an outer polymer portion of ultraviolet curable material. Ultraviolet lamps then are used to cure the outer polymer portion.

Abstract: Methods and apparatuses for manufacturing air and water tight bags of plastic films such as Teflon or other fluorocarbons including creation of an intimate contacting pair of such films. This film pair can be stored or used in accordance with the other aspects of the invention or otherwise, and has its own utility. A vacuum table holds the film pair while a laser beam under computer control simultaneously cuts and welds the film pair along the path of the laser beam to form the bags.

Abstract: Methods and apparatuses for manufacturing air and water tight bags of plastic films such as Teflon or other fluorocarbons including creation of an intimate contacting pair of such films. This film pair can be stored or used in accordance with the other aspects of the invention or otherwise, and has its own utility. A vacuum table holds the film pair while a laser beam under computer control simultaneously cuts and welds the film pair along the path of the laser beam to form the bags.

Abstract: A hermetically sealed optical fiber tube and process of fabrication. The hermetically sealed tube is fabricated from rolled wires into shaped sectors such that when the sections are joined a cylindrical tube is formed having a sufficient inside diameter to accept one or a plurality of buffered optical fibers.

Abstract: An armored cable containing a hermetically sealed tube incorporating an optical fiber is described. The armored optical cable exhibits minimal inelastic elongation in response to tension at elevated temperatures and is capable of withstanding harsh ambient conditions.

Abstract: A hermetically sealed optical fiber tube and process of fabrication. The hermetically sealed tube is fabricated from rolled wires into shaped sectors such that when the sections are joined a cylindrical tube is formed having a sufficient inside diameter to accept one or a plurality of buffered optical fibers.

Abstract: A variable volume, positive displacement pump apparatus for withdrawing samples of liquid from a reservoir and discharging them into a sample analyzer. In the preferred form of pump, two syringe assemblies are provided, each one having a movable plunger assembly and a valve unit associated therewith. The plunger assemblies are reciprocated by engagement thereof by a motor driven, reciprocable carriage assembly which includes a cross member for pushing selected metering rods upwardly against the plungers. The carriage also includes a pair of yokes to engage the plungers and pull them downwardly to aspirate the specimens. Valve movement is achieved by a gear drive which moves the valve between one position which enables the syringe to be filled and another position enabling the syringe contents to be discharged. The volume displaced with each stroke is determined by the length of the metering rod inserted between the carriage and the syringe plunger.

Abstract: The noisy amplified signal from a photoelectric device is passed through an electronic low-pass filter before having its direct current component read on a meter. The cut-off frequency of the low-pass filter is adjusted in known manner by rotation of a control knob, so as to suitably match the cut-off frequency to the noisiness of the signal with a view towards speeding up the stabilization of the meter reading. To overcome the sluggishness of the system, the same control knob is briefly pushed, thereby overriding the low pass control. The method of using the system to speed up meter reading is described.