Abstract: A method and apparatus are described for playing a six-card draw-poker-like game, played with a single deck of cards, in which there are a number of unique hands which require six cards. The invention uses a computer and a video screen. The computer contains a payout table defining winning hands (at least some of which use all six cards). The player makes a wager with the computer which then displays a first hand with a defined rank from the single deck; the player then decides whether to draw cards from the remainder of the deck or to take any winnings from the first hand. If the player draws, the computer produces a second hand, and then determines if the second hand is a winner and pays out or not accordingly. The game is therefore similar to poker in its playing strategy but offers a substantially greater variety of possible winning hands, especially in combinations not possible in conventional five card poker, and provides for a higher probability of winning hands at the lower hand values.

Abstract: Dual action sunscreen compositions capable of both moisturizing the skin and protecting it from sunburn are made from a cationic guar, a cationic acrylic polymer and an ultraviolet absorbing sunscreening agent.

Abstract: A modular rotating biological contactor apparatus is provided which utilizes a plurality of hemicylindrical trough sections, a plurality of bulkhead means interconnecting adjacent trough sections, and a pair of endplate means as subassemblies. These subassemblies are prefabricated and adapted for simple and easy interconnection with one another by means of integrally formed disengagable associatable interfitting means. Using these subassemblies, a plurality of different configurational possibilities for rotating biological contactor apparatus are achievable.

Abstract: A modular rotating biological contactor apparatus is provided which utilizes a plurality of hemicylindrical trough sections, a plurality of bulkhead means interconnecting adjacent trough sections, and a pair of endplate means. These components are prefabricated and adapted for simple and easy interconnection therebetween thereby to provide from a relative small number of subassemblies a plurality of different configurational possibilities for rotating biological contactor apparatus.

Abstract: A contrast enhancement structure for a full color cathode ray tube utilizes a combination of a louvered ambient light transmission control element in combination with a multi-notch band-pass filter. The louvered control elements provide limited viewing angles for incoming ambient light reducing light dispersion on the cathode ray phosphor surface. The multi-notch band-pass filter provides efficient spectral transmission in the phosphor emitting wavelengths. The combination of the louvered directional control elements for ambient light and a multi-notch band-pass filter matching the spectral emission characteristics of the color phosphor, substantially increases the contrast ratio. In fact, this arrangement provides contrast ratios which are of an order of magnitude larger than those previously possible.

Abstract: A CRT display is provided with a multiple-pole, double-throw switching mechanism, which in conjunction with alternate circuitry provides a means for easily reconfiguring the CRT display presentation. By operating the switches the normal left to right, the top to bottom raster scan may, for example, become a bottom to top, left to right raster scan. When applied to a multicolor CRT display, a second multiple-pole, double-throw switching mechanism serves, upon operation, to redirect beam convergence signals in compliance with the reconfigured format effected by switching the deflection signals.

Abstract: Mechanism for achieving the radial expansion of an annular elastomeric pack-off unit between the bore of a casing and the exterior of a liner, comprises a tubular sealing assembly threadably connected between the liner and the hanger and defining two inwardly projecting annular seals, an annular fluid pressure chamber, and radially disposed fluid inlet ports for the fluid pressure chamber located between the two inwardly projecting annular seals. An annular piston mounted in the annular pressure chamber effects the compressible expansion of an annular elastomeric seal element. A tubing extension of the work string is provided which may be selectively moved into sealing relationship with either or both of the internally projecting annular seals. During the cementing operation, the tubing extension engages both annular seals.

Abstract: A key telephone system signal priority arrangement is disclosed wherein each type of call in a key telephone system is assigned a distinctive priority. When a call is directed to a station engaged in an existing lower priority call, a warning tone is given to both parties engaged in this existing call. The existing call is then automatically placed on hold while the preempting call is completed to the called station such that the called station can answer the preempting call "hands-free".

Abstract: A key telephone system is disclosed in which a direct station selection (DSS) arrangement reduces the number of operations required for the attendant to extend an incoming central office call to a station. The operation of one or more DSS keys on any of the attendant consoles in the key telephone system automatically places the calling central office line on hold and establishes a communication path through the DSS key contacts from the attendant to the selected station. DC bias on this communication path activates a loudspeaker and microphone arrangement in the selected station so the called party may converse with the attendant "hands-free." Additionally, the DSS arrangement provides the capability of utilizing any station in the key telephone system as the attendant position.

Abstract: A key telephone system is disclosed in which intercom calls may be answered "hands-free" at the called station. Intercom calls are originated in the standard manner, with the subscriber picking up the handset at the calling station and dialing the number of the called station. A voice communication path is established through the station selector to the telephone set represented by the dialed number. DC bias on this communication path through the station selector activates a loudspeaker and microphone arrangement in the called telephone set. The called party may thus converse "hands-free" with the calling party by utilizing the activated loudspeaker and microphone of the station set, and need not manipulate the station set for the duration of the conversation.