Month of March 2008 - Page Number 20

Showing 191 - 200 of 664 from March 2008
Browse Prior Art Database
  1. 191.
    A method of fabricating CO.sub.2 waveguide type lasers of the type comprising a slot formed in a broad surface of a hard ceramic material, comprising grinding the slot in a conventional surface grinding machine in two steps. The first step utilizes a coarse grinding wheel and the second a finer grinding wheel. The...
    IPCOM000000199D | Original Publication Date: 1987-Jan-06
  2. 192.
    A projectile that is to be fired through a gun tube with high pressure gas, as a central load and a jacket. The jacket encircles the load and has a rearwardly directed appendage flaring outwardly from the jacket. This appendage is formed of a flexible material for outwardly and radially deflecting in response to...
    IPCOM000000198D | Original Publication Date: 1987-Jan-06
  3. 193.
    A new ternary rare earth sulfur compound having the formula: where M is a rare earth element selected from the group europium, samarium and ytterbium and x=0.15 to 0.8. The compound has good high-temperature thermoelectric properties and exhibits long-term structural stability up to 1000.degree. C.
    IPCOM000000197D | Original Publication Date: 1987-Jan-06
  4. 194.
    A highly active hydrocarbon conversion catalyst is disclosed which by virtue of it being promoted by larger than conventional particle size zeolite exhibits significantly improved hydrothermal stability.
    IPCOM000000196D | Original Publication Date: 1987-Jan-06
  5. 195.
    A research burner having a water-cooled hemispherical head provided with a urved upper surface adapted as a seat for a flame which is surrounded by a shroud of inert gas. The burner provides for optical access to the various zones of the flame under study for both temperature and concentration of species in a...
    IPCOM000000195D | Original Publication Date: 1987-Jan-06
  6. 196.
    A blast head including a plurality of spray nozzles mounted in a chamber for receiving a workpiece. The several spray nozzles concurrently direct a plurality of streams of a pressurized gas and abrasive grit mixture toward a peripheral portion of the workpiece to remove particulates or debris therefrom. An exhaust...
    IPCOM000000194D | Original Publication Date: 1987-Jan-06
  7. 197.
    An electronic circuit has been devised for precisely controlling the temperature of one zone in response to a change in temperature in another zone. Two sensors, one in each zone, are wired in opposing polarity so as to emit a signal when a temperature imbalance occurs. The circuit is designed to actuate a temperature...
    IPCOM000000193D | Original Publication Date: 1987-Jan-06
  8. 198.
    An optical alignment sensor capable of receiving radiation from a collima light source and subsequently providing orientation attitude and alignment data. Collimated light from the source impinges an aperture plate causing a shadow of the aperture plate pattern to fall across a two-dimensional photodetector array....
    IPCOM000000192D | Original Publication Date: 1987-Jan-06
  9. 199.
    A catalyst composition containing 5 to 50 weight percent of small particle type Y faujasite zeolite is described. A cracking process using the above catalyst can be used to obtain increased conversion of the heavier portion of commercial crudes as well as to generate increased yield of gasoline and distillate.
    IPCOM000000191D | Original Publication Date: 1987-Jan-06
  10. 200.
    Location determination is an important field in pervasive computing and has diverse applications. Existing location determination approaches, which utilize signals from Access Points (APs), often rely upon triangulation and nearest neighbor classifiers to approximate a user’s location. In this disclosure, a...
    IPCOM000168722D | Original Publication Date: 2008-Mar-21