Abstract: An electromagneto-mechanical actuator comprising a brushless D.C. torque motor capable of producing a torque proportional to the current fed to coil windings which are arranged as a stator, a permanent magnet being the rotor, these windings being severally arranged opposite the pole end faces of the magnet and being reversely wound so that the magnetomotive forces generated by these windings cancel out each other and thereby eliminate magnetic hysteresis. The pivotal movement of the rotor is converted to translational or rectilinear movement of an output drive element through a substantially frictionless band drive having no backlash. The actuator is preferably arranged in a closed servo loop so that the proportionality of its response can be utilized.

Abstract: A simple optical system collects and applies radiation from a predetermined field of view onto a thermopile detector. The thermopile detector has a plurality of rows of thermocouples having all active junctions with alternate polarity which are aligned in columns of the same polarity, whereby in response to an object moving across the thermopile an output signal is produced of alternately changing polarity. Logic circuitry is provided for processing the signals from the thermopile in a predetermined polarity sequence to discriminate against false alarms and for indicating the presence of an intruder and sounding an alarm.

Abstract: A radiation shield apron includes a front apron panel for covering the front of the body from the neck and shoulder tops to at least the knees with inner and outer cover sheets of fabric and multiple flexible sheets of radiation shielding material between the cover sheets and coextensive therewith. A pair of broad-backed wing panels are joined to the front panel along the top shoulder lines and side edges of the front panel. Each wing panel forms a broad combination one-piece shoulder and tie band which ties at the waist at the front of the apron to distribute the weight of the front panel broadly and evenly across the shoulders, chest, back and hips of the wearer for maximum comfort and minimum fatigue.

Abstract: A waterproof bathing cap wherein a pouch consisting of shape-retaining flexible synthetic plastic sheet material serves to loosely surround the hair of a wearer, an elastic band engages the skin close to and along the hairline on the wearer's head, and a preferably elastic flexible oval ring connects the band with the pouch in the region of an opening through which the hair passes into and out of the pouch when the cap is put onto or removed from the head. The ring flares outwardly toward the opening and is sealingly bonded to the band and pouch.

Abstract: Buttock-fitting trousers suitable for wear by both men and women. The trousers include leg portions and a separate seat portion shaped to fit the buttocks and attached to the leg portions by sewn seams passing rearwardly of said trousers to define the junction of the buttocks with the legs of the wearer.

Abstract: An annular sewing member mounted on the base of a heart valve and attached to heart tissue with sutures. The sewing member has spaced outwardly directed flanges connected with a body forming a central annular outwardly open groove adapted to accommodate heart tissue after the natural heart valve has been removed. The flanges are relatively thin and contain an internal core of cured plastic, as Silastic. The flanges can be fabric without an internal core. A heat shrunk collar or sleeve surrounded with cord retains the suturing member in movable assembled relation with the base of the heart valve to permit angular orientation of the valving member of the valve. Stitches extend through one of the sewing member flanges and the heart tissue attaching the sewing member to the heart tissue. The knots of the stitches are located under the second flange, thereby protecting the knots and minimizing clots. The flange without knots form a smooth surface with a thin endothelium tissue layer.

Abstract: A prosthetic knee joint includes a fermoral prosthesis and a tibial prosthesis each having a shank adapted to being fixed to the femur and tibia, respectively. The femoral prosthesis has two laterally spaced apart condyloid elements. The condyloid elements have first bearing surfaces defined by their outer periphery and second bearing surfaces defined by bores in the condyloid elements. The tibial prosthesis has a weight-bearing portion including concave bearing surfaces for supporting the condyloid elements of the femoral prosthesis. The weight-bearing portion of the tibial prosthesis also includes an upstanding arm fitted between the condyloid elements of the femoral prosthesis. A transverse support shaft passes through a hole in the upstanding arm of the tibial prosthesis and is journaled in the bores in the condyloid elements of the femoral prosthesis.

Abstract: An artificial hip joint including an acetabulum prosthesis for the cotyloid cavity defining a socket and having a plurality of outwardly extending blades for engaging the prepared wall of the cavity together with a prosthesis of the head of the femur movably interconnected with the acetabulum prosthesis and which includes a pin arranged to be driven into the bone-marrow channel of the femur, a neck connected integrally to the pin and a hip ball secured to the neck and movably disposed within the socket, the pin including a tapered upper portion and a lower portion provided with a plurality of longitudinally extending flutes to prevent rotation of the pin and a pair of rows of slots or holes arranged in diametrically opposed relationship on both the pin upper and lower portions for promoting bone ingrowth.

Abstract: A lens suitable for implantation in the eye is provided with laterally extending iris clips each having at least one of its ends locked within the body of the lens. The clips are initially extended through close-fitting openings, terminally beaded and forcefully retracted sufficiently to bury their beaded ends within the lens body. Cold flow of lens material around the beaded ends locks the clips in place.

Abstract: A chemically durable, inert optical implant lens and glass composition for the manufacture of same.

Abstract: A water closet, in particular a water closet which is connected to a discharge vacuum conduit, comprises a container which is divided into a first and second compartment by means of a movable wall, the compartments being each connected by means of a conduit to either a source of water under pressure or the flushing device of the closet pan by the intermediary of a valve mechanism. On actuation of the valve mechanism the second compartment of the container is connected to the source of water under pressure, whereby the movable wall is shifted by the water flowing into the second compartment and forces the water present in the first compartment into the flushing device of the closet pan.

Abstract: A demand type flush tank control for saving water by controlling and limiting the motion of the water release valve of the water storage tank of a toilet, such that the water release valve can be moved only a sufficient distance to bring about the amount of flushing action required in a given instance, thus preventing the entire content of the tank from being used except if actually needed. My novel control or restraint type device prevents a bulb type water release valve from becoming free floating, but rather compels it to reside closely beside its seat during a flushing operation, or in the case of a flapper type valve, my restraint serves to limit its movement. These advantages may be accomplished by the use of a restraint device involving either a one piece or a multipiece construction.

Abstract: An underground swimming-bath has its basin, ceiling and side walls constructed by means of a plurality of parts connected together and consisting of glassfiber reinforced plastic material. The parts are curved in two directions normal with respect to one another and a concrete layer is applied after assembly onto the outer side of the parts forming the swimming-bath.

Abstract: A vertical telescopic pole extends between the floor and ceiling of a bathroom that contains a bathtub. A side mounted plate with a vertical slot is secured to one side of the pole. A second telescopic pole is pivotally secured at one end to a bathroom wall that is adjacent to the bathtub. The second pole can be pivoted to extend transversely across the bathtub with its free end engaging the slot in the plate of the first pole whereby the second pole is disposed horizontally and can be used as a guide rail. When the second pole is not in use, it can be swung to a vertical position and held there by a clip attached to the wall directly above its pivoted end.

Abstract: The coupling comprises two coupling elements, the first element of which may form part of a lifting device for lifting sick persons or invalids and the second element may serve for attaching to a supporting element to carry the sick person, the first coupling element comprising two spaced parallel jaw plates provided with first hook means adjacent their upper end and clamping means adjacent their lower end, the second coupling element comprising an elongated rod provided with second hook means adapted to cooperate with the first hook means, the said rod fitting between the jaw plates when the first and second hook means are caused to cooperate, a lower portion of the rod being provided with a cam for cooperating with the said clamping means in the coupling position.

Abstract: Fitted bedclothes for rectangular waterbeds comprising a flat substantially rectangular panel member overlying an upper surface of the mattress and an upper portion of the mattress sides. A right-triangular pocket member is connected to at least two panel member corners, forming pockets therebetween and being adapted for receiving a waterbed mattress corner therein. An extensible portion of a free edge of each pocket member resiliently engages a lower corner surface of said mattress, opposingly and diagonally pulling the bedclothes taut over the mattress.

Abstract: A multiple section boat, each section being separately buoyant, and preferably the sections being sized to nest in storage; adjacent sections being attached at the bottom for tension loads by a plurality of upstanding hook-like tabs on the forward section fitting into slots on the bottom of the next rearward section; screw clamps attaching the tops of adjacent sections; and spacer strips, for compression loads, positioned between adjacent sections.

Abstract: A light weight, portable, multi-section boat assembly in which the sections may be transported in a compact, nested configuration to a desired body of water, and the sections upon reaching the body of water capable of being removably interlocked end-to-end to provide a buoyant, stable boat. After the boat has served its intended purpose the sections are disconnected from one another, and returned to their initial, compact, nested configuration for transportation on land via a suitable vehicle.

Abstract: An operator-driven, hydraulic, front-wheel, traction-drive floor scrubbing and sweeping machine having a steerable undercarriage supporting the front wheels as well as the retractable scrubber-squeegee assembly.

Abstract: The particular embodiment of the invention disclosed herein is specifically designed to clean the inside of a hollow body, especially, that of an ingot mold. For this purpose, the invention provides a cleaning apparatus comprising mainly a rotating means, an elevating means, a rotating shaft and a cleaning means for insertion into an ingot mold and the cleaning of the inside thereof.

Abstract: A sturdy mop mounting base having an elongated upper handle-receivable portion and lower face spaced-apart anchoring receptacles, with length thereof along an axis extending in alignment with the two receptacles being shorter than the width of a mop to be secured against that lower face, and a separate clamping element of a substantially U-shape having the legs thereof positioned to be anchored within the spaced-apart anchoring receptacles.

Abstract: A dust mop provided with a mop head frame which has mounted thereon an attachment bridge for attaching the frame to a mop handle. The dust mop includes a dust mop head on the lower side of the frame which is provided with a fiber cloth backing material on the upper side thereof. A plurality of strips of releasable fastening means are mounted on the bottom side of the mop head frame, for releasably attaching the dust mop head on the lower side of the mop head frame.

Abstract: A filter system particularly suitable for use with a mobile floor cleaning machine. The filter system includes a first tank for receiving therein a contaminated liquid, specifically a floor cleaning liquid containing floor wax and dirt particles, and a second tank for collecting the filtered floor cleaning liquid to permit reuse thereof. The two tanks are joined by a centrifugal filter device having a rotatable filter unit which causes the contaminated liquid to flow radially outwardly through filter means which effectively removes from the liquid all solid particles except for particles of extremely small size, such as less than approximately one micron. The filter system, when mounted on a floor cleaning machine, has the first tank connected with a suction device which picks up the contaminated liquid from the floor, whereas the second tank supplies the filtered liquid to the brushes.

Abstract: Apparatus for reducing tipping forces applied to an upright cannister-type vacuum cleaner when pulled by an elongate flexible intake hose connected thereto including an elongate strap, means for releasably connecting one end of the strap to a point on the appliance body to beneath the intake hose connector and means for adjustably attaching the other end of the strap to a portion of the hose spaced from the hose connector. When pulling forces from the user are applied to the vacuum cleaner body through the intake hose while vacuuming is being performed, the strap redirects at least a portion of the pulling forces away from the hose connecting means and to the vacuum cleaner body at the strap connection point.

Abstract: An apparatus to vary the degree which a door may be opened and held in place. An operating arm of the door holder is pivotably mounted to a slide which is mounted within a slide channel. Holding means releasably hold the slide at a fixed position within the slide channel. The other end of the operating arm is pivotably mounted to an adjustable bracket. The bracket is seated within a track and is capable of adjustable movement along the track. Fastening means secure the bracket with respect to the track in a plurality of fixed positions.

Abstract: A roller wheel assembly for a sliding closure has a wheel unit which is supported in a frame for vertical motion relative thereto when the assembly is installed in the closure. Means in the form of a wedge assembly which engages sloped surface means in the wheel unit are provided to vertically adjust the wheel unit relative to the track. The wedge assembly is adjusted sidewise by means of a screw assembly which is operated from the side of the frame. This causes wedge shaped surfaces of the wedge assembly to ride along the sloped surface means to afford a continuous and precise vertical adjustment of the wheels.

Abstract: A device for rendering pigs unconscious in an automatic manner comprising a chamber holding one pig at a time, and a conical member arranged to move towards and away from the pig's head and provided with two electrodes whereby an electric current is allowed to flow through the pig's head over a chosen period of time, thus rendering the pig unconscious, said funnel cooperating with a sensor which upon retracting of the funnel from the head of the unconscious pig actuates a trap door through which the pig is removed from said chamber.

Abstract: A hand-held fish skinning device is disclosed having a tee-head at one end of a handle body adapted to be held in the user's hand. The end of the tee-head remote from the handle body is formed as a sharp beak which can be readily pressed through the skin of the fish. The neck or shank joining the tee-head to the handle body is provided with a sharp edge so contoured that after the beak is pressed through the skin of the fish the tee-head can be pressed forward under the skin of the fish, making a continuous cut through the skin of the fish and thus the skin of the fish can be cut into panels, while yet on the body of the fish, by successive cuts made with the blade on the neck or shank of the tee-head. The nearer end of the tee-head (nearer the handle body) is formed as a gripping jaw for use in gripping the skin of the fish.

Abstract: A self-locking cable tie for forming a plurality of wires or the like into a bundle. The tie comprises a stretched elongate flexible strap portion for positioning about the wires. The strap portion is made of a plastic material comprising stretch-oriented molecules. An integral head portion extends from one end of the strap portion and has a strap entrance face, a strap exit face, and a generally transverse aperture extending from the strap entrance face to the strap exit face for receiving the distal end of the strap portion. The aperture has a predetermined strap path therethrough. The tie also includes a locking means non-integral with the head portion and which has a free end portion extending into the strap path and toward the strap exit face. The free end portion and the strap portion each have an engageable component for causing a localized stress concentration in the strap portion.

Abstract: Buttons, especially for workmen's and leisure clothing include riveted to the fabric; a button thus including a male portion and a female portion. The riveting requires a hole being punched in the fabric, and the two portions of the button must be designed in such a manner that they are securely retained. By manufacturing the portions of a material having high frictional properties and shaping and selecting the dimensions of the stud of the male part and the mating bore of the female portion with a negative clearance, not only a secure retention, but also an ability of "self punching" the necessary hole in the fabric is obtained. For use with heavier fabric the female portion may be reinforced with a metal lining.

Abstract: A push-button safety buckle, which is used to fasten together ends of safety belts about passengers, is constructed with an inverted channel-shaped, metallic, load-bearing buckle body encapsulated in a surrounding, nonload bearing plastic housing. Because the buckle body is encapsulated, the conventional and expensive chrome plating of the buckle body is eliminated. An overhead plate on the inverted channel-shaped body provides crush resistance to the buckle. An aperture formed in the overhead plates allows access to and operation of a unitary latch lever pivotally mounted within the buckle body.

Abstract: A hook is disclosed for use in containers, refrigerated trucks, packing plants etc. and comprises two separable portions which form a shell for attachment to a container hanger tube. The two portions interlock and hold together by releasable retaining means. A low friction material can be provided in the shell.

Abstract: A clamping bracket means for use with lateral and vertical film supporting rails for defining a film enclosure of finite length, and having a facility for quick-connect and quick-disconnect action. The clamping bracket means includes a pair of opposed brackets arranged to be retained together to form a clamping jaw, with the jaw portion being fitted with a split sleeve of resilient material for enclosing and grippingly retaining a flexible film member upon a film supporting rail, with the split sleeve extending beyond the edges of the jaw.

Abstract: A tool holder having an insert receiving pocket, the pocket having bottom wall and side wall means with an improved arrangement for providing quick indexing or complete changing of an indexable insert. The improved arrangement comprises a pin element with a conical head on one end for engagement with a cutting insert and cooperating elements of a threaded spring tension connection between the other end of the pin and the tool holder. The insert and pin element are detachably fastened together as one unit, and when the insert is in the pocket with the pin clamped to the holder, the unit is held securely in position for cutting engagement with a workpiece.

Abstract: The purpose of this tool is to hold a pipe, located in a trench in the ground, against an opening in the sidewall of a manhole while concrete is poured into the trench to encase the pipe. The tool has a screw-threaded central rod for insertion axially into the pipe from inside the manhole through the sidewall opening. A wedge nut is threaded onto the rod for spreading the end of the pipe into tight engagement with the opening in the sidewall of the manhole. Deformable rings on the rod are expanded radially outward into gripping engagement with the inside of the pipe when it is to be pulled over the wedge nut.

Abstract: A method of reconditioning tubular, multi-bobbin wire stranders employing under-roller supports in contact with radially protruding load bearing surfaces which comprises reducing the circumference of said surfaces while machining said surfaces to within 0.001 inch tolerance, providing said supports with an increased roller circumference and machining said circumference to within 0.001 inch tolerance, and placing said supports in fixed position to said surfaces whereby said supports are leveled to within 0.002 inch per foot of the centerline of said strander. The above method reduces the incidence of maintenance and can reduce the noise generated by the stranger by as much as 15 dBA.

Abstract: An improved method of making syntatic modules is provided. The method includes the steps of forming a mold and adhering an expanded honeycomb material to the interior surface of the mold. The mold is then closed at one end and filled with hollow, plastic spheres from the other end. After the spheres are in place, a syntatic foam is pumped into the mold from the bottom, filling all spaces between the balls with the foam. The foam is then permitted to set after which the mold is removed, leaving the desired module. Thereafter, a skin may be applied to the module.

Abstract: The disclosure relates to methods of forming Insulated Gate Field Effect transistors and the product suitable for integrated circuits with channel lengths of 1 micron or less, the transistors being isolated from other transistors or other components in the circuit without the requirements of extra isolation steps. This is provided by means of a double diffusion which isolates the channel of the transistor from other elements in the circuit. Channel length is solely a function of the diffusion schedule through openings in the oxide through which the double diffusion takes place.

Abstract: A normally-off field effect transistor having the structure of an IGFET with a substantially undoped semiconductor material replacing the insulation between the substrate and the gate metal. A Schottky barrier formed between the gate metal and the substantially undoped semiconductor material produces a channel in the substrate when reverse biased. Method of fabrication is also described.

Abstract: A double polycrystalline silicone gate memory device having a floating gate for storing charge and a control gate. The memory device may be used as a single device cell in a memory array. A double self-aligning method is used to form the source and drain regions while doping the gates. Through a predeposition step a lightly doped secondary source and drain regions are formed in alignment with the floating gate prior to the formation of the primary source and drain regions in alignment with the control gate.

Abstract: A distance between two electrodes of a CCD device is reduced to an extremely small value, thereby increasing the memory density, of the CCD device. In the process of the present invention, upon formation of a first electrode, an insulating layer is formed on the entire top surface of the semiconductor wafer. The material of another electrode is then placed on the entire top surface of the wafer. These layers are then selectively removed to form a CCD structure.

Abstract: An improved method of semiconductor device manufacture is provided in which the surfaces of glass sealed feed-through terminals are mechanically abraded to a uniform matte finish prior to plating and subsequent assembly. The mechanical abrasion, which in the preferred embodiment is performed by dry sand blasting, reduces the cost and improves the yield in subsequent assembly bonding steps and in particular substantially eliminates cold forming defects on the terminal nail head surface such that electrical conductors can be ultrasonically bonded thereto.

Abstract: In accordance with a preferred embodiment of this invention, a commutator for electrical machines having a polymeric spool and aluminum alloy bars uniformly spaced around its periphery is formed. This commutator is useful in low voltage applications wherein the applied or produced voltage may vary from 3 to 30 volts. A critical feature in forming this commutator is the combination of an electrolytic etch and an electrolytic oxide formation on the surface of the aluminum alloy bars. This combination of steps provides means for bonding the aluminum alloy bars to the polymeric spool and also lowers the electrical resistance of alumina. In addition, alloying elements, preferably iron, increase the conductivity of the alumina layer and directionally balance the electrical resistance across the aluminum-alumina junction.

Abstract: A method of manufacturing a superconductor having a superconductive intermetallic compound made of two elements and having an A-15 crystal structure in which at least one core consisting of a ductile element of the compound is surrounded with a jacket of an alloy containing a ductile carrier metal and the second element of the compound after which the jacket is then covered with a tantalum layer and that layer then covered with a sheath of metal which is electrically and thermally highly conductive and is electrically normally conducting at the operating temperature of the superconductor. The structure thus obtained is then subjected to a cross section-reducing deformation after which it is heat-treated to form the intermetallic compound.

Abstract: A method of manufacturing a superconductor having a superconductive intermetallic compound of at least two elements in which a ductile component consisting of one element of the compound is brought into contact with a second component consisting of an alloy containing a ductile carrier metal and the remaining elements of the compound, after which the two components are subjected to a cross section reducing process and then heat treated such that the compound is formed through a reaction of the first component with the elements of the compound contained in the second component.

Abstract: Hair cutters having a hair cutting blade laterally adjustable to selectable hair cutting positions within a cage of wire tines including substantial improvements in cage and frame construction. In one embodiment, the cage is longitudinally slidable relative to the blade carrier to provide access to the blade for replacement purposes while in a second embodiment, the blade and its retaining means are longitudinally slidable from within the cage.

Abstract: Knives including a cutting blade and one or more wider non-cutting runners projecting slightly beyond the cutting edge of the blade and preferably at both ends of the knife blade. The runners prevent scratching of a substrate on which the material, normally a comestible, is being cut. On each runner there is provided on either side a beveled ramp inclined toward the adjacent cutting surface which acts very much as a plowshare to push up the material being cut against the cutting blade. This prevents a thin strip of material which would otherwise not reach the cutting blade and is particularly important with comestibles such as meat, which are sufficiently tough to permit forming such a thin strip. Where knives are manufactured, the ramps or plowshares can be incorporated in the knife blade when it is manufactured. However, there is included the provision of attachable runners for knives which have already been made.

Abstract: A handle having a base member mounted on one end and a blade retainer member pivotally mounted on the base member. The base and retainer members have skirt portions for engagement with opposite side surfaces of a safety razor-type cutting blade, the retainer member being pivotally movable toward and away from a blade retaining position. Lugs on the base member are adapted to engage notches on a blade to lock the blade against movement relative to the base member.

Abstract: Device for continuous auscultation of the motion and positions of a patient mandible including means for sensing the motion and positions of the mandible at the rear of the condyle inside the external auditory duct with the help of strain gauges connected with a Wheatstone bridge, and means for amplifying the output signal which is finally applied to a reading device. Such a device is usable for real and accurate determination of any mandibular motion, centric relation and rest position in making dental prosthesis.

Abstract: A rigid base with an integral post projecting thereabove between its ends has a tubular slideway formed through the post and the bottom of the base. A cylindrical slide is reciprocable in the slideway and has a picker finger secured to its bottom with opposite tapered ends projecting under the adjacent portions of the bottom of the base. A screw is threadedly engaged in a tapped bore in the top of said slide, and has a head on its upper end exteriorly of said post. The head is restrained against axial movement relative to said post. A slot formed vertically through the side of said post slidably receives a pin connected to said slide to prevent rotation of the slide. Said pin also serves as an indicator. A manually engageable handle is formed integrally with said base and said post.