Abstract: A self-resealing container cap configured to make a closing engagement with a container and a septum of elastomeric material supported in an opening defined by the cap periphery. The septum is puncturable by a blunt tip of an instrument such as a disposable plastic pipetter tip or a single use plastic laboratory transfer pipette having a tip width substantially greater than the thickness of a central portion of the septum. The septum is further configured to be substantially self-resealing against significant leakage of specimen liquid through the septum following withdrawal of the blunt tip from the punctured septum.

Abstract: Hand, knee and elbow orthosis each have a deformable semi-rigid stiffener having two end plates joined by a narrow midportion and contained between thin foam sheets to make an insert. A launderable cover of terry cloth fabric with permanently attached straps and a zippered opening fully envelops the insert. The hand orthosis has symmetrical left and right thumb extenders for ambidextrous application. The elbow and knee orthosis are symmetrical in length and width for convenient application insensitive to orientation of the orthosis on either a right or left limb.

Abstract: A process is described for the diffusion or metallizing of one electrically conductive metallic material into and on to the matrix of a second electrically conductive metallic material. The process will occur when the second material is in a solid state condition and placed in closely spaced but not touching contact with the first conductive material, and both are subjected to an applied D.C. potential across the materials while the first metallic material is subjected to an ultrasound signal. The first material and the second material thus form an electrode pair. The material of the second metallic element is then deposited on the first and the first metallic material is effectively metallized by the second material. The material to be coated is moved, e.g., rotated, during the process while maintaining a small gap with respect to the other electrode. Also disclosed is a relatively simple apparatus for carrying out the method of this invention.

Abstract: A method and kit of parts for testing heat detectors mounted at an elevated location above a ground surface using a supercorrosive metal alloy composition formulated to react exothermically but non-flammably upon being wetted for sustaining temperatures of about 195 degrees Fahrenheit, permitting testing of heat detectors rated at 175 to 195 degrees F. The composition is formed into convenient wafers which are elevated on an extension pole into proximity to the heat detector by an operator standing on the ground. The wafers may be activated by wetting with a disposable plastic syringe, and may be reheated several times.

Abstract: A holder for medical specimen slides is made of a single sheet of corrugated cardboard cut and folded to make a tray portion and a cover portion hinged to each other for holding one or more slides therebetween. The holder features a tab integral with the cover which is pressed into a cutout in the tray portion to secure the holder in closed condition without need for external fasteners such as adhesive tape.

Abstract: An inflatable mattress for clinical bed use has a base pad including two sheets joined to define one or more narrow air conduits extending along the pad. A body supporting surface is provided by individually detachable inflatable elements covering the base pad. Each inflatable element is secured across the pad transversely to and communicates with at least one air conduit through apertured fasteners. Air permeable foam in the air conduits holds the conduits open in a gatched condition of the pad. Cushioning material contained between the sheets exteriorly to the air conduits provides body support in the event of deflation of the mattress. Constant pressure and alternating pressure modes of operation are supported with appropriate air supply systems.

Abstract: A method for voice evaluation having three analysis steps is described. First, the subject is caused to stand with the arms at the sides and produce a yawn-sigh-like sound ("AH") without vibrato for approximately one second. The subject is instructed to begin the sound fairly high on the vocal scale, using the light mechanism of the voice, and to gradually lower (descend) the pitch of the tone in a smooth sliding/glissando effect. The tone descends through the middle voice and down through the chest voice or heavy mechanism of the voice, ending on the lowest tone that the subject can produce. The analyst listens to the quality of the descending tone evaluating it for clarity across the vocal scale and listening for disturbances in the quality, registration, resonance and placement of the tone, as well as a skip/interruption in the tone, a flutter/shakiness, a double tone, or any other vocal aberration.

Abstract: A paperboard bin for storage and organization of piece parts and similar items is described. The bin is formed from a single piece of paperboard and may be rapidly assembled without the use of tools. The bin comprises an elongated rectangular bottom panel, first and second joined side panels, first and second rectangular outside end panels foldably joined to the bottom panel, first and second rectangular inside end panels foldably joined to the first and second rectangular outside end panels, first, second, third and fourth rectangular end reinforcing panels foldably joined to the first and second side panels and first and second detachable divider panels. The bottom panel includes a pair of tab element receiving slots. The first and second inside end panels each include a bendable tab element sized, shaped and disposed to engage the tab element receiving slots in the bottom panel.

Abstract: A method and apparatus for cutting rings from forging stock is described. The invention includes a rigid machine base affixed to a horizontal mounting surface. A rotating headstock, capable of at least one speed is permanently mounted to the machine base. A four-jaw chuck is removably attached to the front face of the rotating headstock for mounting forging stock of irregular cross-section. A three-jaw chuck is removably mounted in the four-jaw chuck for holding forging stocks of regular cross-section. An abrasive cut-off wheel is removably mounted to a rotating saw arbor. The saw arbor is pivotally mounted parallel to the axis of rotation of the headstock. The pivotal mounting for the saw arbor is slidably mounted to the machine base so that the distance form the cut-off wheel to the front face of the headstock may be varied by the operator to cut rings of varying thickness.

Abstract: The invention provides a container for microscope slides incorporating an ejection device. In each of three disclosed embodiments the slides are ejected through an exit slot by manual actuation of an ejector so as to engage a rear of an end slide in a stack and push it forward through the exit slot. In each of the embodiments, the dispenser may be removably mounted on a base or holder. The holder may include a base plate with support arms. The slide dispenser may be factory sealed for clean or sterile slides and then be discarded or recycled when empty. Finally, the dispensing containers may be shrink wrapped at the factory to ensure sterility of the slides until needed.

Abstract: A reinforced paperboard box for storage and shipping of elongated items is described. The box is formed from a single piece of paperboard and may be rapidly assembled without the use of tools. The box comprises an elongated rectangular bottom panel, first and second joined side panels, a top panel, a front reinforcing panel and dividing partition all foldably joined at elongated edges and constructed to form a multi-level elongated box. The first side panel has a pair of abutting end panels foldably joined to either end, with a tab receiving panel and a locking panel foldably joined to either side of the end panel. The second side panel has a pair of end panels foldably joined to either end, that are locked in place by the locking panels and tab receiving panels of the first side panel. The dividing partition is includes at least one pair of cuts and a series of perforations enabling the dividing partition to be folded inwardly so as to divide the interior space of the box into at least two compartments.

Abstract: A temperature compensated laser diode transmitter circuit includes a laser diode, a driver circuit for supplying an a.c. drive current to the laser diode, a thermistor arranged to thermally sense the laser diode, a current source having a first and a second current output controlled by the thermistor, the first current output connected to the driver for temperature compensating the drive current, and the second current output connected to supply a temperature compensated bias current to the laser diode.

Abstract: A stack of plastic T-shirt bags and method of making the same wherein the bags of the stack have been subjected to two corona treatments to increase the adhesion between the back wall of each bag and the front wall of the next ensuing bag with a row of pressure points being provided at the base of the central mounting tab in order to enable each bag as it is pulled open on the rack arms to initiate opening of the next ensuing bag. The mounting tab is cut to provide not only a central mounting slit, but also with a wave-like cut below the mounting slit to enable the mounting tab to be torn for removal from the central mounting element without the tear extending down into the bag walls.

Abstract: A quick-connect splice joint for concrete reinforcement bars. Two diametrically opposed semi-cylindrical shells span the adjacent bar ends. The two shells are held against axial displacement by mating to raised features such as ridges or threads on the bars, and are held radially by an outer sleeve. The splice is axially preloaded by nuts threaded on the bars.