Abstract: A process for producing building materials, such as asphalt, cement, concrete, mortar, or plaster board from liquid paint sludge containing water and paint solids produced from overspray in commercial paint booth operations. The preferred embodiment comprises adding the liquid paint sludge as the hydrating agent directly to the building material mix.

Abstract: A process for producing building materials, such as asphalt, cement, concrete, mortar, or plaster board from liquid paint sludge containing water and paint solids produced from overspray in commercial paint booth operations. The preferred embodiment comprises adding the liquid paint sludge as the hydrating agent directly to the building material mix.

Abstract: A vehicle heater adapted to be plugged into a conventional car cigarette lighter. The vehicle heater includes an adapter for plugging the invention into a cigarette lighter, a switch for turning the heater on, a clock for setting a timer to turn the heater on at certain times and indicator lights for indicating when the unit is turned on when the battery power is low and when the air temperature is too high. The heater contains conventional heating elements and can be used in connection with any car cigarette lighter socket.

Abstract: A connector is described of the type that has contacts lying in insulative material in a housing, wherein a separate positioner (24 in FIG. 2) of insulative material is molded about each contact (22) to form a terminal device (20), and the terminal devices can be arranged in a variety of configurations. Each terminal device includes an elongated metal contact with front and rear end portions and a middle, and an insulative positioner (24) molded about the middle. The terminal devices lie in the housing with the molded positioners of adjacent contact devices substantially abutting each other and holding the contact ends in a predetermined pattern, wherein the axes of all terminal devices extend parallel to each other. The middles of the contacts are hollow and include access openings (52 in FIG. 5) into which molding material can flow, so the molded material of the positioner seals the middle of the inside of each contact.

Abstract: A contact assembly for installation in an electrical connector, provides effective electromagnetic filtering in a simple, compact, and rugged construction that facilitates in-field replacement of a damaged contact assembly. The contact assembly includes a signal conductor, a diode for diverting high voltages on the signal conductor to ground, and a "pi" filter for filtering out unwanted frequencies. The "pi" filter includes a ferrite bead inductor coupled to the signal conductor and a first capacitor coupling a location of the signal conductor on a first side of the inductor to ground. The other capacitor of the "pi" filter is formed by the capacitance of the diode, with the diode connected to a signal conductor location on a second side of the inductor, and with the capacitance of the diode similar or equal to that of the first capacitor.

Abstract: A mailbox signaling arrangement cooperably responsive to pivotal movement of the entry lid of a common rural mailbox characterized by a pivotal signal plate member and, optionally, the selective energization of a light source. Operation of the signaling arrangement is occasioned by the release of the aforesaid signal plate member (which is continually urged to a signaling position) as a result of entry lid movement, with the signal plate member also initiating operation of the light source when at such signaling position.

Abstract: A radio frequency modulator/demodulator (modem) and method for receiving and transmitting data over a radio frequency data link. The modem has a transmitting section which includes a modulator which modulates a radio frequency signal in response to data provided by, for example, an associated processor. The transmitting section further includes a watchdog or enable circuit which monitors a request-to-send signal produced by the associated processor, with the request-to-send signal being present when the processor is generating data to be transmitted over the data link. The enable circuit will disable the modulator should a transmission exceed a maximum predetermined time period, thereby preventing the associated processor from monopolizing the data link in the event of a processor failure.

Abstract: Binder, filler, and refractory compositions and methods of using and making these compositions are disclosed. The binder composition comprises colloidal silica, a liquid material containing Si-OH groups, a solvent which is capable of solubilizing the liquid material and the colloidal silica, and at least one aprotic, non-ionic, non-metallic, organic compound which contains at least one element selected from P, S, B and N and which stabilizes the binder composition against self-gelling. The liquid material and the colloidal silica are present in a ratio by weight of from about 10:1 to about 1:10 respectively. The liquid material has at least about 20% by weight SiO.sub.2. The colloidal silica contains at least about 15% by weight SiO.sub.2. The solvent and the organic compound are present in amounts so as to solubilize the liquid material and the colloidal silica, to provide a binder composition which is stable against self-gellation, and to provide a binder composition which gels to a single phase.

Abstract: A process is disclosed for providing a refractory composition on a surface. In the process an acidic hybrid binder composition and a basic colloidal silica sol composition are provided. The surface is coated with the acidic hybrid binder composition and the colloidal silica sol composition so that each colloidal silica sol composition coat contacts an acidic hybrid binder composition coat to form alternating layers of the acidic hybrid binder composition and the colloidal silica sol composition. Each acidic hybrid binder composition layer and each colloidal silica sol layer are dried prior to coating with the alternating layer to a sufficient hardness such that lift-off of the applied coatings from the surface is inhibited when a subsequent coating step is performed. A refractory laminate composition is also disclosed which comprises a plurality of layers of hardened acidic hybrid binder composition alternating with a plurality of layers of hardened basic colloidal silica sol composition.

Abstract: Binder, filler, and refractory compositions and methods of using and making these compositions are disclosed. The binder composition comprises colloidal silica, a liquid material containing Si--OH groups, a solvent which is capable of solubilizing the liquid material and the colloidal silica, and at least one aprotic, non-ionic, non-metallic, organic compound which contains at least one element selected from phosphorus, sulfur, boron and nitrogen and which stabilizes the binder composition against self-gelling. The liquid material and the colloidal silica are present in a ratio by weight of from about 10:1 to about 1:10 respectively. The liquid material has at least about 20% by weight SiO.sub.2. The colloidal silica contains at least about 15% by weight SiO.sub.2.

Abstract: Binder, filler, and refractory compositions and methods of using and making these compositions are disclosed. The binder composition comprises colloidal silica, a liquid material containing Si-OH groups, a solvent which is capable of solubilizing the liquid material and the colloidal silica, and at least one aprotic, non-ionic, non-metallic, organic compound which contains at least one element selected from P, S, B and N and which stabilizes the binder composition against self-gelling. The liquid material and the colloidal silica are present in a ratio by weight of from about 10:1 to about 1:10 respectively. The liquid material has at least about 20% by weight SiO.sub.2. The colloidal silica contains at least about 15% by weight SiO.sub.2. The solvent and the organic compound are present in amounts so as to solubilize the liquid material and the colloidal silica, to provide a binder composition which is stable against self-gellation, and to provide a binder composition which gels to a single phase.

Abstract: A contact retention clip is provided with a B-stage epoxy resin coating. The clip is installed in the contact cavity of a plastic body under heat and pressure to cause the coating to form its final resin. The resin becomes impregnated into the wall of the cavity to seal micro cracks in the wall which otherwise may lead to voltage breakdowns.

Abstract: A rapid response health care communications system for providing rapid and reliable health services to patients located within or outside a health care facility, such as an acute-care hospital, includes personnel locator for identifying both the type and the location of health care personnel, such as doctors, nurses, interns, and the like; and personnel communicating network for communicating with certain of such personnel from a central location to direct them to patient locations where their need is paramount. A patient response communication network is provided for communicating with the patient or with the patient's room from the central location to identify the patient's needs and the personnel required to respond to those needs. A central console at the central location includes a plurality of locator panels, one for each floor of the facility, each of which include indicator lamps for identifying the particular location of the health care personnel within the facility.

Abstract: A flexible printed circuit is electrically connected to a printed circuit board or the like without the use of intermediate conducting contact elements. The flexible printed circuit has conductive strips thereon each terminating in a conductive pad. The pads and the areas of the insulation sheet of the circuit underlying the pads are deformed to provide contact projections defining cavities therebelow. A backing layer of elastomeric material underlying the insulation sheet embodies points which extend into the cavities. The flexible printed circuit is clamped against the printed circuit board causing the elastomeric layer to be compressed so that the points fill the contact cavities to produce a high-force localized contact between the contact projections and the traces on the printed circuit board. A multi-layer, flexible printed circuit arrangement is also disclosed.

Abstract: An electrical connector in which conductive rubber rods are mounted in a nonconductive substrate. The rods extend above and below the upper and lower surfaces, respectively, of the substrate for electrically interconnecting conductive traces on a pair of electronic components, such as a display panel and logic circuit used in a digital wrist watch. A method for making the connector is disclosed.

Abstract: An electrical connector in which conductive rubber rods are mounted in a nonconductive substrate. The rods extend above and below the upper and lower surfaces, respectively, of the substrate for electrically interconnecting conductive traces on a pair of electronic components, such as a display panel and logic circuit used in a digital wrist watch. A method for making the connect is disclosed.

Abstract: An auxiliary memory unit for use with electronic calculators which enables verification of a series of numeric data and function entries without requiring manual re-entry. Data and function signals generated by manual actuation of a calculator keyboard are sequentially stored in a storage device in the auxiliary memory unit during a first mode of operation, termed STORE.After a complete series of entries has been made, the stored signals are sequentially read out and displayed in the original order of entry during a second mode of operation, termed READ. The stored function signals are also read out so that the read out numeric data signals are processed by the calculator during READ.

Abstract: A method of uniformly breaking glass fibers in a bundle of fibers in which the apex of a cone is inserted into the end of the bundle. The fibers in the bundle are distributed in a single plane about the surface of the cone with the free ends of the fibers extending beyond the base of the cone. A sleeve on the bundle is shifted forwardly toward the base of the cone to firmly grip the fibers therebetween. The outer surfaces of the fibers are then scratched and a compressive force is exerted to the free end of the fiber bundle to cause the fibers to bend and break at the base of the cone.