Abstract: An optical disk drive is located in a housing having a centrally pivoted door. An optical disk cartridge is inserted into the drive and is received by a sealing member. The cartridge and sealing member divides the interior of the drive into two compartments. The first compartment contains the electronics which need to be cooled and the second compartment contains the optical elements. The door and sealing member allow airflow in the first compartment but prevent it from reaching the second compartment. An airfoil is positioned over the optical elements in the second compartment to protect them from airflow developed by the spinning disk.

Abstract: An optical disk drive is located in a housing having a centrally pivoted door. An optical disk cartridge is inserted into the drive and is received by a sealing member. The cartridge and sealing member divides the interior of the drive into two compartments. The first compartment contains the electronics which need to be cooled and the second compartment contains the optical elements. The door and sealing member allow airflow in the first compartment but prevent it from reaching the second compartment. An airfoil is positioned over the optical elements in the second compartment to protect them from airflow developed by the spinning disk.

Abstract: The invention is a cleaning cartridge which includes a housing and a tube for injecting a compressed gas therethrough and into specific areas of an optical disk drive. The tube is removably connectable at one end to a compressed gas supply, and is aimed at the other end to direct gas exiting therefrom at both the objective lens, beam-directing prism or mirror, or other internal optical disk drive components when the cartridge is seated in the drive. Upon insertion of the cleaning cartridge into the optical disk drive in the usual manner for any optical disk cartridge, gas is released from the compressed gas source, through the tube, and into the optical disk drive. The use of such a cleaning cartridge provides for easy, effective cleaning of any internal optical disk drive component without the abrasion and potential inconveniences associated with mechanical brushing, wiping, or other techniques.

Abstract: A process for forming a composite high temperature superconductor copper wire, said process comprising the steps of (1) directing a submicron sized powder of a superconducting ceramic material through a length of copper tubing to coat the interior surface of said tubing with a uniform compact film of said powder, and (2) sintering said powder while passing oxygen through said tube and while maintaining the outside of said tube in an inert atmosphere. In a preferred embodiment an aerosol process is used to generate the submicron sized powder of the superconductor.

Abstract: Stable, bulk electrical superconductors are prepared by heating mixed metal oxides in the presence of oxygen in a closed vessel in a preheated oven for 1-5 hours at 850.degree.-900.degree. C. The final oxides are in the molar ratio Ti.sub.0.6-1.1 Ca.sub.2-3 Ba.sub.0.75-1.25 Cu.sub.2-3 O.sub.(5+.delta.)-(9+.delta.), where .delta. is less than one.

Abstract: Substrates are coated with durable, adherent and continuous superconductive coatings by applying thereto a suspension of finely divided metal, finely divided ceramic superconducting above 77.degree. K., and fluorinated polymer in an organic solvent. The resulting coatings are adherent, durable and superconducting above 77.degree. K.

Abstract: Stable, bulk electrical superconductors are prepared by heating mixed metal oxides in the presence of oxygen in a closed vessel in a preheated oven for 1-5 hours at 850.degree.-900.degree. C. The final oxides are in the molar ratio Tol.sub.0.6-1.1 Ca.sub.2-3 Ba.sub.0.75-1.25 Cu.sub.2-3 O.sub.(5+.delta.)-(9+.delta.), where .delta. is less than one.

Abstract: The invention is directed to novel heterofulvalene geminal dithiolate compounds and their selenium and tellurium analogs having the general formula ##STR1## Wherein X is selected from S, Se and Te. R is selected from hydrogen, alkyl, aryl, or together form a ring of carbon atoms, cyano and dithiocarbonate groups and R.sup.1 is selected from alkali, alkaline earth and transition metals, alkyl, aryl, cyclic and heterocyclic groups.A novel method for preparing these compounds is also provided.

Abstract: The invention is directed to novel heterofulvalene geminal dithiolate compounds and their selenium and tellurium analogs having the general formula ##STR1## Wherein X is selected from S, Se and Te. R is selected from hydrogen, alkyl, aryl, or together form a ring of carbon atoms, cyano and dithiocarbonate groups and R.sup.1 is selected from alkali, alkaline earth and transition metals, alkyl, aryl, cyclic and heterocyclic groups.A novel method for preparing these compounds is also provided.

Abstract: The invention is directed to novel heterofulvalene geminal dithiolate compounds and their selenium and tellurium analogs having the general formula ##STR1## wherein X is selected from S, Se and Te. R is selected from hydrogen, alkyl, aryl, or together form a ring of carbon atoms, cyano and dithiocarbonate groups and R.sup.1 is selected from alkali, alkaline earth and transition metals, alkyl, aryl, cyclic and heterocyclic groups.A novel method for preparing these compounds is also provided.

Abstract: The invention relates to high resolution video storage disks comprising a substrate having disposed thereon a film of a monofunctionalized substituted tetraheterofulvalene compound and a halocarbon. The tetraheterofulvalene compound can have the molecular formula ##STR1## where X can be S and/or Se R can be an alkyl group having from about 1 to about 8 carbon atoms or a benzyl group wherein said benzyl group can be a part of a polymer chain;and Y can be either an ester or an ether.

Abstract: Novel E-beam resists and process for their use are described. These resists are conducting organic charge transfer salts. Films of these materials can be deposited by solvent casting or by sublimation. The deposited film can be made to produce a positive or negative resist image depending on the E-beam energy and exposure time. Exposure of this material to an E-beam produces patterns having differential electrical, optical and solvation properties.

Abstract: Novel E-beam resists and process for their use are described. These resists are conducting organic charge transfer salts. Films of these materials can be deposited by solvent casting or by sublimation. The deposited film can be made to produce a positive or negative resist image depending on the E-beam energy and exposure time. Exposure of this material to an E-beam produces patterns having differential electrical, optical and solvation properties.

Abstract: Novel E-beam resists and process for their use are described. These resists are conducting organic charge transfer salts. Films of these materials can be deposited by solvent casting or by sublimation. The deposited film can be made to produce a positive or negative resist image depending on the E-beam energy and exposure time. Exposure of this material to an E-beam produces patterns having differential electrical, optical and solvation properties.

Abstract: The invention is directed to novel heterofulvalene geminal dithiolate compounds and their selenium and tellurium analogs having the general formula ##STR1## Wherein X is selected from S, Se and Te. R is selected from hydrogen, alkyl, aryl, or together form a ring of carbon atoms, cyano and dithiocarbonate groups and R.sup.1 is selected from alkali, alkaline earth and transition metals, alkyl, aryl, cyclic and heterocyclic groups.A novel method for preparing these compounds is also provided.

Abstract: This invention is concerned with a reversible electrochromic display device wherein its electrochromic activity is derived from an electrochromic active molecules which are attached to a porous polymeric resin.

Abstract: Organic molecules can be coupled via their selenocarbonyl derivatives. Generally, the synthesis can be described by the following reaction equation: ##STR1## where C can be a cyclic or heterocyclic organic compound and R can be alkoxy, phenoxy or phenyl, preferably CH.sub.3 O, C.sub.2 H.sub.5 O, C.sub.6 H.sub.5 O, C.sub.6 H.sub.5 and the like. The reaction is usually carried out in a refluxing solvent, the choice of the solvent being determined by the stability and by the ease of coupling of a particular substrate. Groups that tend to stabilize the selenocarbonyl require higher boiling solvents and longer refluxing times. Aromatic solvents, such as benzene or toluene are well-suited for the coupling reaction. In some cases, refluxing the substrate in the alkoxy-phosphorus base as solvent may be advantageous. This new coupling procedure permits the synthesis of the hitherto unknown compounds: tetraselenofulvalene (TSeF), the selenium analogue of tetrathiofulvalene (TTF), and diselenodithiofulvalene (DSeDTF).