Abstract: A cover is disclosed for preventing impingement of solar radiation, rain, sleet, snow, and dust upon the contents of a shopping cart and which in addition provides glow-in-the-dark advertising indicia disposed on the cover. The cover comprises a trapeloidal sheet member having a first top edge and a second top edge interconnected by a third top edge. The top member has connected to it first and second rectangular sheet members connected to the first and second top edges respectively, the first and second sheet members being interconnected by a third rectangular sheet member attached to the third edge of the trapeloidal sheet member. The first and second sheet members are disposed on opposite sides of the shopping cart and have attached thereto strips of a material such as Velcro or a string or a rope material, for example, which are connected so as to secure the cover to the shopping cart.

Abstract: A line marking device for installation of parking lines and traffic markings comprising an airless paint spray mechanism adjustably attachable to a wheeled, support carrier to permit delivery of a trapezoidal paint spray to the surface of the road or pavement to mark stripes of varying widths.

Abstract: An implement to be used in the treatment of human, animal or artificial hair provides an impervious platform for the application of a treating composition, such as a dye or bleach, for example, to a selected portion of the hair while shielding the remainder from contact with the composition. The platform has a beveled edge so adapted to provide direct access to the roots of the selected hair portion.

Abstract: A facial air cleaner adapted to remove airborne particles in the vicinity of a person's face prior to insertion of contact lenses to eliminate the airborne particles from being deposited on the contact lenses during insertion. The cleaner is an enclosed unit which has an air inlet driven by an electric fan and conduit connected to the inlet adapted to provide a pattern of high and low velocity air flow through outlets arranged to surround the face and gently flood the hand holding the lens with cleaned air while a lens is being inserted.

Abstract: A plurality of ampules, individually formed, filled with reagents, sealed with a pane and marked with indicia for reagents to be mixed with blood in performing tests to determine blood type groups is disclosed. A receptacle for a blood sample which conveys the blood sample to the ampules and which accomodates a plurality of the ampules is also disclosed along with a means for rupturing each pane.

Abstract: A device for casting a weighted fishing line that includes a hollow cylindrical member having threaded thereon at one end a conical augered spike and having on the other end a cap which is held onto the cylindrical member by means of a ridge on the cylindrical member. The cap has a slot which corresponds with a slot in the cylindrical member through which the fishing line is threaded. The casting device is adapted for use with the fishing line attached to a weight of a geometrical shape such that it will not pass through the aperture in the cylindrical member. The augered spike is screwed into the earth, the weighted line is placed into the cylindrical member and the cap placed onto the member such that when pressure is applied to the fishing line this pressure is transferred to the cap on the cylindrical member by means of the weight on the line which is pulled up against the slot in the member to release the cap.

Abstract: A driving device for a print head including printing mechanism actuated at predetermined times for marking characters on a data carrier carried by a print roll, comprising motion converting mechanism comprising a housing including an interior continuous gear path, said housing being coupled to said print head; said gear path comprising a pair of opposing straight path portions substantially parallel to the axis of said print roll; said straight path portions being joined, at each end thereof, by respective curved path portions; rotatable pinion mechanism in continual engagement with said gear path; said pinion mechanism being coupled to the shaft of a motor driving mechanism; said straight path portions being mutually separated by a distance greater than the outside diameter of said pinion mechanism and said curved path portions being mutually separated by a distance substantially greater than the distance separating said straight path portions; rotary motion of said pinion mechanism being converted to recipr

Abstract: A method of graphic data redundancy reduction in an optical facsimile system wherein picture elements are optically represented by a grey coded number having N digits where N is at least 5 comprising evaluating at least the first N-2 bit planes to determine whether these bit planes should be processed in high or low resolution, and arbitrarily processing the remaining at least one bit plane at low resolution.

Abstract: An MOS mesa transistor is comprised of a silicon island on an insulating substrate. The silicon island consists entirely of a source region, a drain region, and an I-shaped channel region which separates the source and drain regions. The island has a coating of an oxide of silicon thereon. A rectangular conductive gate is adjacent to the coating and above the channel region and the transverse extremities of the I-shaped channel region extend bilaterally and transversely from underneath the gate at each end thereof.

Abstract: A reflective type photocathode of a photomultiplier includes a porous antimony layer in overlay relation to a layer of solid antimony along a supporting substrate.

Abstract: A method for making a four-layer P+PNN+ or N+NPP+ diode, and the diode, wherein the impurity profile about the PN junction is optimally graded for TRAPATT operation throughout the span of the avalanche region by ion implantation of the impurities to a depth of 1000A in a semiconductor wafer and wherein these impurities are subsequently thermally diffused.

Abstract: An improved means for interconnecting a semiconductor array to a carrier wherein the array comprises a plurality of MESFET transistors each having a distinct gate pad and a distinct drain pad, the improvement comprising a bilaterally symmetric conductive member connecting a plurality of pads, for example gate pads, to a common bus bar located on the carrier and a bilaterally symmetric conductive member connecting a plurality of pads, for example drain pads, to another common bus bar located on the carrier, wherein a length for each conductive member determines and provides a value of inductance at the operating frequency of the array which is substantially the same from the bus bar to each connected pad.

Abstract: A cadmium selenide base layer is vapor deposited on a substrate and thermally treated to achieve a desired photosensitivity, crystallographic structure, and granularity.

Abstract: A method for insuring that the sidewall of a P+ PN+ layered junction mesa semiconductor structure is tapered smoothly from the P layer to the N+ layer of the structure upon formation thereof by immersion of a wafer comprised of the structure in an etchant of 3% HF and 97% HNO.sub.3, comprising the steps of placing an etch mask dot having a diameter slightly less than the greatest diameter required for the N+ layer above the P+ layer at a preselected site on the wafer, preselecting a specific ratio of etchant quantity to P silicon quantity, immersing the wafer in the preselected quantity of the etchant, and withdrawing the wafer from the etchant at the instant at which the silicon is removed from around the dot.

Abstract: A semiconductor device having a pair of laterally spaced multiple-layer metal films, each located in a different vertically-spaced parallel plane on a body of a single crystalline semiconductor material and a channel between the spaced edges of the pair of metal films. The edges of the pair extend in cantilever fashion over the channel. First and second laterally spaced Schottky-barrier metal films are located in the channel and form gate contacts. The first metal film is located completely beneath the uppermost multiple-layer film. The second metal film is located substantially below an aperture formed between the pair of multiple-layer metal films. A contact pad for the first film is on the outside of the channel near one end thereof, and a contact pad for the second film is located near the other end. The Schottky-barrier films are typically less than 0.8 micrometers wide.