Abstract: Air purification devices are described. Devices are powered to form an electric field along an airflow path that creates a plasma for destruction of pathogens carried through the device. Devices can be single-user, portable devices for purification of air flow to and/or from a single user.

Abstract: An electric pushback vehicle includes a frame having a forward portion and a rear portion. The vehicle further includes front drive axle and a rear drive axle configured to communicate power to ground engaging members. A traction battery is housed within the electric pushback vehicle and provides electric power to an electric motor to drive an output shaft. A transmission is connected to receive mechanical power from the electric motor through a torque converter.

Abstract: Packaging container having a chamber wherein the chamber comprises a plurality of corresponding products (1) sized such that a number of such products essentially completely fills the chamber, the packaging comprising at least one removable portion (4, 6) dimensioned such that the at least one removable portion (4, 6) can be removed from the packaging, rearranged to adopt an expanded form and placed within the chamber, having the effect of reducing the volume of the chamber available for the products (1) by n times the volume of a contained product (1), where n is an integer, whilst retaining the feature that a number of such products (1) essentially completely fills the chamber.

Abstract: A touch screen is disclosed. The touch screen includes a display assembly to generate a visible feedback to a user, a conductive layer spaced from the display assembly for sensing a touch of the user, and a polarizer layer disposed adjacent the conductive layer, wherein the conductive layer is interposed between the display assembly and the polarizer layer.

Abstract: A hydraulic system for controlling the engagement and disengagement of a friction element includes a source of line pressure, a source of exhaust pressure, a manual valve having a forward state and a reverse state, connected to the exhaust pressure source and line pressure source and including a first outlet and a second outlet, for opening and closing communication between said outlets and said pressure sources in response to changes in the states, a friction element communicating with the line pressure source through the manual valve in the reverse state, and a control valve including a port communicating with the friction element, the control valve producing control pressure at the port when the manual valve is in the forward state.

Abstract: A hydraulic system for controlling the engagement and disengagement of a friction element includes a source of line pressure, a source of exhaust pressure, a manual valve having a forward state and a reverse state, connected to the exhaust pressure source and line pressure source and including a first outlet and a second outlet, for opening and closing communication between said outlets and said pressure sources in response to changes in the states, a friction element communicating with the line pressure source through the manual valve in the reverse state, and a control valve including a port communicating with the friction element, the control valve producing control pressure at the port when the manual valve is in the forward state.

Abstract: In accordance with the present invention a paint can having a bottom and an integrally formed side wall portion, having a top portion having an inwardly extending rim portion containing a plurality of spaced openings therein of sufficient size to return any paint which flows into the rim into the paint can. The openings are preferably placed on only one side of the rim so that the other side of the rim can be used for pouring without paint being spilled through the openings. The openings may be circular, square, rectangular, polygon eliptical, or any other convenient shape so long as they have sufficient size to avoid surface tension causing the paint to fill the opening and prevent flow back into the can.

Abstract: A quasi-isotropic composite structure includes a multi-sheet rib projecting generally perpendicular to a multi-sheet body with at least one of the body face sheets being bent and attached in a parallel manner to the rib sheet or sheets. The sheet or sheets that are part of both the body and rib are unsevered and integrally contiguous.

Abstract: A method and a pre-form for strengthening a substrate structural member. Layers are applied to a surface of a substrate where the layers include dry fibre reinforcement materials. A reduced pressure is then applied to the layers and a curable resin is introduced to the layers such that the resin is drawn therethrough until the interstices therein are substantially filled with the resin. The resin is then cured. The layers are preferably woven fabric and may include resin distribution layers of relatively low weave density and high permeability and reinforcement layers of higher weave density and lower permeability. The layers may be provided as a pre-form.

Abstract: A brake and transmission control system for a vehicle having a hydraulically controlled power shift transmission and a spring applied hydraulically released parking brake. Both the transmission control and the brake are interconnected hydraulically with the operator's seat whereby when the operator leaves the seat the transmission is automatically shifted to neutral and the parking brake is automatically applied.

Abstract: A composite magnetic head adapted to record and read records to and from a record carrier particularly suited to a multitrack record carrier, and more particularly suited to a multitrack magnetic tape. The composite magnetic head may be moved transversely with respect to the direction of movement of the record carrier so that head alignment with any one of multitracks of the record carrier may be achieved. The record carrier contacts the head assembly defining a scrub surface. A yoke is provided supporting a ferrite core containing an effective gap which permits the head to be physically mounted with respect to the record carrier.

Abstract: Novel xanthone-2-carboxylic acid compounds of the formula ##STR1## wherein A is selected from the group consisting of --COOR', a 1H-tetrazol-5-yl and a 1H-tetrazolylcarbamoyl, R' is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms and cation of a non-toxic, pharmaceutically acceptable organic or inorganic base, R is selected from the group consisting of hydrogen, alkyl of 1 to 9 carbon atoms, alkoxy of 1 to 9 carbon atoms and alkoxy alkoxy of 2 to 9 carbon atoms and X is selected from the group consisting of ##STR2## AND ##STR3## WHEREIN R.sub.1 is alkyl of 1 to 5 carbon atoms, R.sub.2 is selected from the group consisting of hydrogen, acyl of an aliphatic acid of 1 to 5 carbon atoms, aroyl of 7 to 8 carbon atoms, araliphatic acyl with 1 to 5 carbon atoms in the aliphatic portion and 6 or 7 carbon atoms in the aryl portion, aralkyl of 7 to 8 carbon atoms, arylsulfonyl, a carbamoyl, a carboxyalkyl of 1 to 5 carbon atoms, --CO--(CH.sub.2).sub.

Abstract: Novel xanthone-2-carboxylic acid compounds of the formula ##STR1## wherein A is selected from the group consisting of --COOR', a 1H-tetrazol-5-yl and a 1H-tetrazolylcarbamoyl, R' is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms and cation of a non-toxic, pharmaceutically acceptable organic or inorganic base, R is selected from the group consisting of hydrogen, alkyl of 1 to 9 carbon atoms, alkoxy of 1 to 9 carbon atoms and alkoxy alkoxy of 2 to 9 carbon atoms and X is selected from the group consisting of ##STR2## AND ##STR3## WHEREIN R.sub.1 is alkyl of 1 to 5 carbon atoms, R.sub.2 is selected from the group consisting of hydrogen, acyl of an aliphatic acid of 1 to 5 carbon atoms, aroyl of 7 to 8 carbon atoms, araliphatic acyl with 1 to 5 carbon atoms in the aliphatic portion and 6 or 7 carbon atoms in the aryl portion, aralkyl of 7 to 8 carbon atoms, arylsulfonyl, a carbamoyl, a carboxyalkyl of 1 to 5 carbon atoms, --CO--(CH.sub.2).sub.

Abstract: Method and Apparatus for subjecting material to extreme compression, for instance in the making of artificial diamonds. The material is enclosed within a cluster of anvils. When pressure pads converge to bear upon the clustered anvils so that they slide against each other and the cluster contracts, the material within is compressed. The reaction of each anvil with its pressure pad is directed generally towards the material to be compressed but lies out-of-parallel with the interfaces of sliding movement of that anvil with its neighbours. The pad-anvil reaction can thus be resolved into components urging each anvil into contact with its neighbours, and thus supporting the anvil against fracture due to the high compression it undergoes along the pad-specimen axis.

Abstract: Battery plate grids for lead-acid batteries are manufactured from an alloy having the following composition in atomic percentages:-Calcium + Lithium 0.22 - 1.04 Aluminium 0.035 - 0.25 Lead remainder,Wherein the atomic percentage of lithium in the alloy is not less than 0.15 and does not exceeds 0.90 and the atomic percentage of calcium in the alloy is not less than 0.07 and does not exceed 0.49.