Abstract: A heat exchanger useful for supplying infusates over substantial distances uses an extrusion which provides a central tube for carrying an infusate and two outer channels for carrying a heat exchange fluid. A first of the channels carries the heat exchange fluid from an inlet end to an opposite end, and the other of the channels returns the heat exchange fluid to the inlet end. An end cap at the inlet end is easily connected to a source of heat exchange fluid and communicates with the channels. An end cap at the opposite end receives the heat exchange fluid from the first channel and redirects it to the second channel. Both of the end caps have connectors for facilitating connection with lines from a source of infusate and a patient.

Abstract: Apparatus is disclosed for filtering melted plastic used in an injection molding system. The apparatus consists of a housing having an inlet and outlet with a cylindrical inner chamber disposed in alignment therebetween, and a tubular filter element threadably mounted in the internal housing. To avoid loosening of the filter element, a plurality of spiral surfaces are formed in the filter element that are exposed to the pressurized flow of melted plastic, generating a resultant force that tends to screw the filter element tighter onto its threaded mount. The threaded mount is at the inlet end of the tubular element, causing it to extend in cantilever fashion axially into the internal chamber and toward the outlet. This creates an annular discharge passage around the filter element that is unobstructed, permitting the filtered plastic to converge smoothly into the outlet.

Abstract: A surgical drain system includes an elongated drain member having a conduit portion connected to a fluid intake portion with a fluid flow passage extending continuously through both portions and with at least one fluid intake opening in the fluid intake portion. The conduit portion of the drain member has generally a marquise-shaped transverse cross-section, whereas the fluid intake portion has a similar cross-sectional shape but absent the pointed end portions of the marquise shape. In use, the drain member may be positioned with the fluid intake portion within the wound in a desired position and with the conduit portion traversing the wound, and the wound edges may easily be made to conform to the marquise shape of the conduit portion to form a substantial seal. The drain member also preferably includes a one-way valve connected to the conduit portion for preventing fluid from flowing into the wound through the drain member.

Abstract: An actively damped steering rate sensing device for an autopilot control system capable of producing angular rotation in a control plane of an intentionally continuously axially rolling airframe such as a homing missile in response to a rotation related guidance command signal. The device includes an elongated armature member mounted to the airframe for pivotal movement about an axis extending through the member intermediate its length. The pivot axis is oriented with respect to the rotational axis of the airframe so that the armature member will pivot by gyroscopic precession in response to rotation in the control plane of the rolling airframe. Sensing and damping coils are mounted on opposite ends of the armature member. Magnets and flux path return elements are fixedly mounted adjacent each of the coils.

Abstract: A handbag with a handle which can be converted into a shoulder strap includes a flexible strap a portion of which extends from an upper portion of the body of the handbag and constitutes its handle. The handbag includes a device for adjusting the length of the portion of the strap outside the upper portion of the body of the handbag so that the handle can be converted into a shoulder strap.

Abstract: A roofing system for a sloped roof having a base with a generally horizontal top surface and a generally vertical edge has an internal gutter in its lower margin. The system includes a first flashing, that is attached to the base, having a lip which projects from the top surface of the base. The base is covered with sheets of flexible, thermally weldable roofing material with the top margin of each sheet being attached to the base and the bottom margin overlapping and welded to the adjoining sheet. The lower margin of the lowest sheet overlies the lip of the first flashing to form the gutter. A second flashing, which conformingly overlies the first flashing, is attached to the base over the sheet to clamp the margin of the sheet against the edge of the base. The margin of the lowermost sheet is pulled progressively tauter over the lip of the first flashing at the sides of the roof than at the downspout to make the gutter slope downwardly towards the downspout.

Abstract: A memory address controller addresses two memories and selectively modifies an address before it is applied to the addressing input of one of the two memories. A bit of the address is used to indicate to the controller if the address is to be modified. The same address is applied unchanged to the addressing input of the other of the two memories by the memory address controller. In this manner the addressing range is expanded.

Abstract: A conventional demodulator for digital transmission includes means (12) for splitting the received HF signal into two identical auxiliary signals, mixers (20, 30) for transposing the auxiliary signals into in-phase and quadrature baseband components by multiplying them with in-phase and quadrature output signals from a local oscillator (14), and respective filter and amplifier means (22, 24; 32, 34) and analog-to-digital converters (26, 36) on the in-phase and quadrature channels. In addition, the demodulator includes estimation means (100) suitable for estimating faults on groups of samples (Y.sub.p,k, Y.sub.q,k) taken from the outputs of the analog-to-digital converters (26, 36), with the faults being estimated in the form of five parameters, and correction means (200) for correcting current samples (Y.sub.p, Y.sub.q) on the basis of the parameters estimated on an earlier group of samples.

Abstract: The instant invention concerns an insole with a flat bottom and with the top surface made up of hollow semispherical or cylindrical humps. Once this insole has been affixed to the sole, whether it be made of PVC foam or polyurethane or wood or any other material, a single piece is formed with a series of completely airtight air tubes.

Abstract: A clip for securing a flexible bag to a rigid container is molded from synthetic plastic material and has a strip-like body portion, a first pointed projection extending from the lower surface of the body portion adjacent one end thereof, and a second pointed projection extending from the lower surface of the body portion adjacent an opposite end thereof. The first and second projections are snappable into a pair of spaced apertures in the rigid container, the second projection being shaped to pierce the flexible bag before being snapped into the aperture therefor so as to secure the flexible bag to the rigid container, and the second projection also being readily snappable out of the aperture to enable the flexible bag to be detached from the rigid container.

Abstract: A plurality of double pipe heat exchangers are used for primary reforming in a combined primary and secondary reforming process and apparatus.

Abstract: Substituted guanidines and ethanamidines are provided as high potency sweetening agents.

Abstract: An air elimination device includes a plenum arranged to cause a reduction in flow velocity of a physiological fluid whereby air bubbles form and rise to the top of the plenum. A hydrophobic membrane covers the top of the plenum, and the pressure in the fluid is greater than that which is required to drive the released air through the membrane and into the atmosphere. The air which collects at the top of the plenum forms a protective surface on the bottom of the hydrophobic membrane to prevent its being clogged by cellular materials. A support stand engages the air eliminator to hold it in the desired orientation whereby the air bubbles form at the top of the plenum.

Abstract: A system for electrical grounding consisting of a series of grounding receptacles which include electrically insulative housings and grounding terminals which are interconnected by a common ground wire. The ground wire is also insulated from the surrounding environment and is electrically connected to a ground rod. The ground rod acts as a single grounding point which is shared by each electrical device which is connected to each grounding terminal.

Abstract: A molding apparatus particularly adapted to be associated to a meat chopper to mold the extruded ground meat into hamburgers. The said apparatus is provided with a feeler or snesor which disactivates the meat chopper when a hamburger has been formed and which re-activates said meat chopper when the emptied mold is re-introduced into the formation chamber. The feeler or sensor is mounted on the housing or body of the meat chopper so as to be self-adjustable as to its spacing from the formation mold when the positioning of the molding apparatus of the invention changes due to the wear of the meat chopper knives.

Abstract: A heat exchanger preferably for use in heating physiological fluids includes an inner conduit, an outer conduit, and end caps which seal the outer conduit to the inner conduit to form a flow channel. The inner conduit is preferably of aluminum and the outer conduit and end caps are of an elastomeric material. The end caps are designed to tightly engage the inner conduit and to be solvent bonded to the outer conduit. When the inner conduit elongates because of thermal expansion, the outer conduit elastically deforms so that there is no relative movement between the end cap and the inner conduit. This preserves sterility during temperature variation.

Abstract: Sweetening agents, characterized in that they conform to the following formula: ##STR1## wherein: A is an imino (.dbd.N--), iminium (.dbd.N.sup.+ <), methylene (.dbd.C<) group, the iminium group being able to be salified by a physiologically acceptable anion;m and n are number equal to 1 or 2;B:when n=1, represents H, CN, OCH.sub.3, NO.sub.2, SO.sub.2 R, SOR, SO.sub.2 NHR, SO.sub.2 NR.sub.2, wherein R is an alkyl, cycloalkyl or aryl group having up to 10 carbon atoms;when n=2, represents H, CN, OCH.sub.3 ;X:represents CN, NO.sub.2, when B is H, CN, OCH.sub.3 ;represents CN, NO.sub.2, COCH.sub.3, CHO, Cl, CF.sub.3, F, H, when B is NO.sub.2, SO.sub.2 R, SOR, SO.sub.2 NHR, SO.sub.2 NR.sub.2 ;M is a hydrogen atom or a physiologically acceptable organic or inorganic cation.

Abstract: A method for treatment of sexual impotence in men incorporates an external fixing of the penis with the aid of mechanical device, followed by rehabilitation of the sexual potence. According to the invention, rehabilitation is carried out by successive releasing of the penis from fixing through stage-by-stage displacement of the fixing points towards the root of the penis so as to increase the length of penis portion released from fixing and accompanied by regulation of the regional blood flow through the penis by virtue of a mechanical action exerted on the penis at the fixing points.

Abstract: The invention relates to sheets of aluminium alloy containing magnesium, suitable for producing bodies of cans by drawing and ironing, and a method of obtaining said sheets.The sheets are characterized in that they have, over 10 to 25% of their surface, uniformly distributed particles formed by amorphous aluminium oxides and crystalline magnesium and aluminium oxides, in the form of flat discs less than 5 microns thick and with a mean diameter distributed round a means value from 2 to 15 microns.One of the methods of obtaining said sheets is characterized in that the strip is taken as it comes from the casting machine or after at least one rolling pass and subjected to chemical etching so as to reduce its thickness by a maximum of 2 microns, before being annealed in air at from 330.degree. to 450.degree. C. for at least 30 minutes.

Abstract: Thymosin .alpha.1 and other peptide amides are synthesized in the solid phase using methylbenzhydrylamine resin as the support and hydrogen bromide as the deprotecting and cleaving agents. The N-terminal 14 amino acid partial sequence of thymosin .alpha.1, Ac-Ser-Asp-Ala-Ala-Val-Asp-Thr-Ser-Ser-Glu-Ile-Thr-Thr-Lys-OH is synthesized on benzyl ester resin. Using a mixture of hydrogen bromide, anisole and thioanisole as the cleavage and deprotection composition, the yields of the cleaved peptide and the selectivity of the deprotection is highly improved. For example, yields of thymosin .alpha.1 have been increased by about 90% as compared to the use of hydrogen bromide alone. By using hydrogen bromide rather than hydrogen fluoride, the synthesis can use conventional laboratory glassware and the synthesis can be easily scaled up to commercial production.