Abstract: Induction heating can be utilized to cause necrosis of neoplasm as a result of hyperthermia by a process involving the injection of particles having hysteresis heating characteristics into tissue either within or in close proximity to the neoplasm and then subjecting these particles to an alternating magnetic field sufficient to cause hysteresis heating. The frequency of the field is preferably sufficiently low so as to minimize eddy current and dielectric heating. The particles used are preferably initially located within a biologically inert liquid carrier which will facilitate the insertion of the particles within the body and which will automatically become non-liquid within the body so as to hold the particles in place. The carrier may contain radiopaque material to enhance its visualization under radiographic examination.

Abstract: A data communication device which includes a terminal housing having a terminal connector forming a part thereof, with a modem located in the housing so as to be physically and electrically connected to a data terminal or computer when the terminal connector is connected to the data terminal or computer. A telephone cable having a plug means at one end so as to connect to a modular telephone is connected via its other end to the housing so as to be electrically connected to the modem.

Abstract: A seal for a container having a straight cylindrical neck with an opening in the neck includes an upper sealing member which fits over the top of the neck and down a portion of the cylindrical surface of the neck. The top sealing member has a tapered edge on its bottom which accepts an indentically tapered edge of an intermediate sealing member which engages it. The intermediate sealing member also has a further tapered edge which accepts a tapered edge of a bottom sealing member which mates with it. A lower locking member goes around the cylindrical neck of the bottle and is shaped such that a portion of it is spaced away from the cylindrical neck of the bottle to form a cavity in which fits the intermediate and lower sealing members. A top locking member goes over the top sealing member and both a skirt on the top sealing member and the top locking member also fit within the cavity of the lower locking member. Threads between the upper and lower locking member hold the structure together.

Abstract: A device useful in demonstrating occlusion and the effect thereof on the temporomandibular joint can be constructed so as to use an upper member shaped so that portions of it simulate a maxilla, maxillary teeth and a fossa and so as to use a lower member shaped so that portions of it simulate a mandible, mandibular teeth and a condyle. The lower member is held with respect to the upper member through the use of a plurality of resilient members in such a manner that the condyle is within the fossa and is movable with respect to it and in such a manner that the two sets of simulated teeth are adjacent to one another. The condyle is smaller than the fossa so at to permit it to be moved generally within the fossa as the lower member is moved relative to the upper member in demonstrating occlusion between various different types of teeth.

Abstract: An apparatus for delivering oxygen to a patient is preferably constructed so as to include an elongted, deformable receptacle having an open side extending along its length, a flexible, "floppy" diaphragm secured at its edge so as to seal off or enclose the open side of the receptacle and a retainer for protecting and for limiting expansion of the diaphragm located along the side of the diaphragm remote from the receptacle. As the apparatus is used, oxygen is constantly delivered to the extremities of the receptacle through appropriate supply lines. On exhalation exhaled gas is forced by the pressure of the breath through a cannula--preferably a nasal cannula--into the interior of the receptacle remote from the supply lines. This cannula is used so that gas can flow. This exhaled gas is used to force the diaphragm against the retainer, opening up the interior of the receptacle in an amount such that some of the exhaled gas will be held in the receptacle.

Abstract: Many different so-called "wall systems" as are often used in offices and other locations employ perforate, vertically extending, spaced, parallel standards in supporting one or more objects through the use of hooks extending through perforations in the standards. Any such system can be improved by utilizing sloping surfaces on an object held by the standards and a wedging member associated with each sloped surface. When an object with such a surface is in place on a standard so that the hooks employed extend through openings in the standard the wedging member associated with the surface is moved so as to be wedged between the sloped surface with which it is associated and the standard so as to move the object generally outwardly from the standard in order to pull the hooks firmly in contact with the interior of the standard. This results in the object being held firmly relative to the standard employed.

Abstract: A folding, extensible holder primarily intended for use in holding file folders of various different lengths but which is capable of being used in holding other objects can be constructed so as to utilize a sectionalized base in which the sections are connected by a tongue and groove structure and opposed ends held by the base. The base construction permits the length of the base to be adjusted to correspond to various standardized lengths of folders and other objects capable of being held with the holder. Detents are provided for releasably securing the sections in various positions corresponding to such lengths. Preferably, the sections of the base may be disengaged and the ends of the folder may be folded relative to the sections upon which they are located into flat, easily shipped configurations.

Abstract: An electrically controlled valve using a piezoelectric strip as an actuator can be constructed so as to include a valve body having separate pressure and return chambers connected by two different load passages. These load passages are connected to service ports used to connect a load to the valve. These passages are open at their ends into the two chambers. A pressure port is used to supply a fluid under pressure to the pressure chamber while a return port is used to convey fluid from the return chamber. The actuator is mounted in such a manner that it can be actuated by an electric signal to move with respect to the openings in the chambers so as to cause an increase in the pressure in one of the load passages and a decrease in the pressure in the other. The position of the actuator can be reversed. When the valve is not in use the actuator is located so that the pressures in both of the load passages are the same.

Abstract: A fire retardant material is formed by intimately associating the unexpanded form of perlite in association with a permeable mass of silica glass, said association is formed by permeating said perlite into said mass of glass. Preferedly the composition comprises particles of unexpanded perlite less than 100 mesh and preferably no larger than 200 mesh and the permeable glass comprises a glass fiber mat. The fire retardant material can be formed as a unified body capable of being applied onto other structural components or alternately, it can be intimately bonded to the surface of structural components as a veneer layer. Upon exposure to combustion temperatures the perlite expands from its unexpanded form to its expanded form at or near the deformation point of the glass mat followed by reaction of the perlite and the glass to form a flame-impenetrable ceramic.

Abstract: A valve which is primarily useful in avoiding liquid being held or trapped around the exterior of a closure member used to close off the flow from an inlet to an outlet cavity through an opening after having been positioned so as to permit such flow can be constructed so that the terminal surface on the closure member appears as a continuation of the internal surface of the outlet cavity around the opening when the closure member is in this closed position. Preferrably, the outlet cavity is a cylindrical bore and the terminal surface of the closure member is a cylindrical surface having the same diameter as the bore. When the outlet cavity and the terminal surface are so shaped, a guide structure is used to control the movement of the valve closure member so that it can only be located in a closed position in which the cylindrical surface appears as a part of the cylindrical bore.

Abstract: A particularly satisfactory derailer type bicycle can be constructed using front and rear derailer mechanisms in connection with the pedals and the rear wheel of the bicycle, respectively, and a control cable which operates these two mechanisms in synchronism with one another. This control cable is used so as to rotate a cam of the front derailer mechanism in order to cause shifting of the bicycle chain between the gears in this mechanism. Similarly the cable is used to concurrently rotate a cam of the rear mechanism so as to cause shifting of the bicycle chain between the gears of this mechanism. The cam as the rear derailer mechanism formed to facilitate the shifting action achieved by causing the chain of the bicycle to be moved slightly past and then back into a position corresponding to a gear of the rear mechanism.

Abstract: A self supporting grate for a drain structure can be improved by including as part of the grate a mounting base sized and shaped to attach the grate to the drain structure. At least a portion of the grate is formed as a generally upwardly projecting wall attaching to and extending from the base. The wall includes a plurality of weirs capable of forming a variable flow fluid pathway to the interior of the grate for fluid disposal by the drain structure. The weirs are constructed so as to allow fluid at a first fluid level on the wall as measured from the base to flow at a first rate from the exterior of the grate into the interior grate and fluid at a second fluid level likewise measured along the wall from the base to flow at a second rate into the interior of the grate, with the second rate being different from the first rate. A guard lip is located on the mounting base peripheral to the grate to retard the flow of solid material over the guard lip and to prevent clogging of the grate.

Abstract: A toy arcade game has a housing with a motor located therein. The motor is connected via various drive trains to move a target through a target field, a target coordination member, and an attack mechanism including an attack coordination member. The target coordination member moves between an interaction position when the target is in its hit position and a non-interaction position when it is not. Under the influence of an initiator member the attack coordination member moves from a non-interaction position to an interaction position and back again to the non-interaction position. An interaction member is mounted on the housing to move from a first position to a second position when both the target coordination member and the attack coordination member are simultaneously in their respective interaction positions. An indicating mechanism located in the housing is capable of producing a sensory perceivable output, inter alia, in response to location of said interaction member in its second position.

Abstract: A rocking scale or weighing device can be constructed so as to include a body equipped with two separate, spaced, identical bowed supports or rockers which extend generally between the ends of the body. A holder capable of holding an envelope or the like perpendicular to the body is located at one of the ends of the body. Guides are provided on the body for use in holding a counterbalance member so that it may be moved towards and away from the holder. Indicia are provided for indicating the weight of an object held by the holder by the position of the counterbalance member on the body. Detents may be provided for use in temporarily securing the counterbalance member in a specific position.

Abstract: A magnetic recording disk is constructed wherein a disk substrate is overlayed with at least one non-recording layer. A recording layer is then overlayed on the non-recording layer with the thickness of the recording layer at those areas corresponding to the inner track zone located toward the central hub area of the disk being thinner than the intermediate track zone radially displaced outwardly from the inner track zone toward the periphery of the recording disk.