Abstract: A system for increasing the security of a computer system, while giving an individual user a large amount of flexibility and power. To give users the most power and flexibility, a standard object that has the capability to embed objects is used. To allow users even more flexibility, a standard object tracking mechanism is used that allows users to distribute multiple encrypted embedded objects to other individuals in a single encrypted object. By effecting compartmentalization of every object by label attributes and algorithm attributes, multi-level multimedia security is achieved.

Abstract: An improved golf cup and in particular to a golf cup which has all the features of a normal golf cup and conforms with the appropriate Professional Golfer's Association (PGA) rules and regulations but, additionally, has been modified to provide a means to contain an advertisement. The advertisement can be inserted and removed at will, without disturbing the normal functioning of the cup. The advertisement is in the form of a flexible insert that can be snapped into an indentation in the inner wall of the golf cup. A small hole is placed within the recessed area to facilitate the insertion of a screwdriver or like device to assist in the removal of the advertising insert which has been snapped into place. The advertising insert is constructed of a light, flexible durable material which is flat when not inserted into the golf cup and is, therefore, easy to handle, store and ship.

Abstract: A filter for removal of biochemical oxygen demand and suspended solids utilizing multi-layer filtration media. The filter media includes plastic particles, sand, and garnet and is operated under an automatic control condition. Fine filtering is accomplished by a sludge cake which develops at the upstream face of the filter media. For cleaning the filtration media, deposited sludge is removed from the filter bed by backwashing in a short time period at a high strength backwash flow rate.

Abstract: A chlorination and dechlorination apparatus and method for the treatment of wastewater or other fluid including a chlorinator, a contact tank, and a dechlorinator. The contact tank is a vessel having an inlet opening and an outlet opening and is divided into two contact chambers by a baffle which runs vertically the entire length of the contact tank. A baffle opening is provided at the lower end of the baffle to allow passage of fluid from the first contact chamber to the second contact chamber. The chlorinator includes a chlorine tablet feeder and the dechlorinator includes a dechlorination tablet feeder. The fluid under treatment flows from the inlet opening to the outlet opening in a plug-flow pattern. Previous to entering the contact chambers, the fluid washes over and dissolves chlorine tablets stacked in the chlorine tablet feeder. After flowing through the contact chambers, the fluid washes over and dissolves dechlorination tablets stacked in the dechlorination tablet feeder.

Abstract: A method of passing tones transparently over narrowband channels without having to detect the tones at the transmit side is described. This method requires neither separate handling of tones for the transmission purpose, nor prior knowledge of the characteristics of the signaling tones used. It is a relatively general method that can be applied to systems using a variety of speech coding techniques utilizing a frame structure.

Abstract: A lottery game card vending machine on which multiple games are available for play. The user can select any specific game desired. If an additional element of chance is desired by the player, the player can select a random selection function whereby a processing means comprising a random number generator adapted to the number of games available on the lottery machine is initialized upon actuation of a switch by the player. When the player actuates the random game selection switch the processing means randomly selects a lottery game/card to be played based upon the random number generated at the time the select button is actuated. The visual indicia will also light one at a time in a sequence, eventually stopping such that the indicia of the game selected by the random number generator is illuminated. The indicia may be lights or light emitting diodes (LEDS), for example, used to indicate the different games.

Abstract: A wastewater treatment plant comprising a pretreatment chamber, aeration chamber and a settling chamber designed to minimize or eliminate sludge buildup at the bottom of the aeration chamber. Two support walls are provided. The combined function of one support wall and an angular portion at the bottom of the common wall between the aeration and settling chamber is to regulate the flow pattern in the aeration chamber and return settled biodegradable matter from the bottom of the settling chamber to the aeration chamber for further treatment. The fluid flow created by the wall structure enhances the action of the settling chamber and elinates dead zones in the aeration chamber thus minimizing sludge buildup.

Abstract: Tissue extracting forceps are disclosed which have been designed for use in laparoscopic surgery. The forceps firmly grasp tissue or organs which are to be moved or removed during the procedure. The grasping members of the forceps are aligned such that fragmentation damage to the grasped tissue is minimized. The mechanical layout of the forceps allows the user to manipulate the working end for a distance, so that the user's fingers do not get in the way of the surgical procedure. The working end of the forceps is adaptable to be used with grasping members of different shapes, or with disposable cutting instruments. Any of these working ends may be incorporated in the same overall mechanical design.

Abstract: A compact beacon-detector type IFF system to be carried by individual soldiers. The system consists of a beacon and a special purpose detector. The beacon is a small, light-weight, battery powered device that is worn on the soldier's web gear. The detector consists of a small flashlight-like device that can be hand held or mounted on a weapon, similar to a rifle scope. The beacon's signal is not visible to those using existing night vision equipment nor is it otherwise exploitable by a potential adversary. The system achieves its covertness through the selection of the optical wavelength used by the beacon. Further signature reduction is achieved through the use of a Low Probability of Intercept ("LPI") spread spectrum waveform as the beacon output. This waveform utilizes a spreading code to encode the beacon output signal.

Abstract: A stretch valve which achieves precise control of fluid flow rates through the use of a cylindrical elastomeric valve element. This elastomer element is installed within the cylindrical flow path of a valve body. The flow path has a diameter that is slightly smaller than that of the elastomer element, which is therefore constrained within the flow path. Longitudinal stretching of the elastomer element causes the diameter of the elastomer element to decrease. As a result, a flow path is opened. The further the elastomer element is stretched, the larger is the fluid path that is created. Therefore, precise control of the fluid flow rate is made possible.