Abstract: The present invention relates to heating systems for drying wet coatings such as printing inks, paint, sealants, etc. applied to a substrate. In particular, the invention relates to a drying system in which a blower having an inlet directs a current of heated gas such as air towards a wet coating on a substrate to dry the coating and wherein the heated air is circulated back to the inlet of the blower once the air impinges the coating on the substrate. The present invention also relates to a drying system in which the substrate is supported about a thermally conductive roll having a plurality of energy emitters disposed within the conductive roll along a length of the conductive roll. The plurality of energy emitters are controlled to selectively emit energy along the length of the conductive roll.

Abstract: The present invention relates to heating systems for drying wet coatings such as printing inks, paint, sealants, etc. applied to a substrate. In particular, the invention relates to a drying system in which a blower having an inlet directs a current of heated gas such as air towards a wet coating on a substrate to dry the coating and wherein the heated air is circulated back to the inlet of the blower once the air impinges the coating on the substrate. The present invention also relates to a drying system in which the substrate is supported about a thermally conductive roll having a plurality of energy emitters disposed within the conductive roll along a length of the conductive roll. The plurality of energy emitters are controlled to selectively emit energy along the length of the conductive roll.

Abstract: A dryer system for drying a coating applied to a substrate includes a thermally conductive roll having a length and a peripheral surface for supporting the substrate and a plurality of energy emitters disposed within the conductive roll along the length of the conductive roll. The plurality of energy emitters are controlled to selectively emit energy along the length of the conductive roll. The conductive roll is at least partially surrounded by at least one convection unit. The convection unit includes a blower assembly, a heater assembly and a vacuum passageway. The blower assembly includes an inlet and directs a current of air towards the substrate. The heater assembly heats the air being directed towards the substrate. The vacuum passageway extends between the substrate and the inlet of the blower assembly for returning the heated air to the blower assembly once the air has impinged upon the substrate.

Abstract: The present invention relates to heating systems for drying wet coatings such as printing inks, paint, sealants, etc. applied to a substrate. In particular, the invention relates to a drying system in which a blower having an inlet directs a current of heated gas such as air towards a wet coating on a substrate to dry the coating and wherein the heated air is circulated back to the inlet of the blower once the air impinges the coating on the substrate. The present invention also relates to a drying system in which the substrate is supported about a thermally conductive roll having a plurality of energy emitters disposed within the conductive roll along a length of the conductive roll. The plurality of energy emitters are controlled to selectively emit energy along the length of the conductive roll.

Abstract: A dryer system for drying a coating applied to a substrate includes a thermally conductive roll having a length and a peripheral surface for supporting the substrate, and a plurality of energy emitters disposed within the conductive roll along the length of the conductive roll. The plurality of energy emitters are controlled to selectively emit energy along the length of the conductive roll. The conductive roll is at least partially surrounded by at least one convection unit. The convection unit includes a blower assembly, a heater assembly and a vacuum passageway. The blower assembly includes an inlet and directs a current of air towards the substrate. The heater assembly heats the air being directed towards the substrate. The vacuum passageway extends between the substrate and the inlet of the blower assembly for returning the heated air to the blower assembly once the air has impinged upon the substrate.

Abstract: A system for applying heat to wet coatings applied to selected areas on a front surface of a continuous substrate includes an energy emitter for applying energy to the substrate to heat the substrate, a metallic roll contacting a back surface of the substrate opposite the front surface being heated, a mechanism for advancing the continuous substrate over and around the metallic roll and a contact member having a surface engaging the surface of the substrate. The metallic roll conducts heat away from non-selected areas on the substrate while the substrate is heated to prevent overheating of the non-selected areas. The contact member engages a surface of the substrate so that the substrate is in contact with greater than 180.degree. of the metallic roll.

Abstract: A pass-through convection oven having a series of gas jet distributors and an exhaust system adjacent later distributors in the series to gather gas for the initial distributors in the series. A distributor in the series is formed of a pair of plenums in series in the gas flow path with a cumulative area of the passageway between them exceeding the cumulative area of the orifice from which the gas jets are formed in that distributor.

Abstract: A radiant heating device including a pair of concave surfaces for directing radiant energy toward an object positioned through an access opening in a receiving space therebetween with these concave surfaces extending to either side of this opening.

Abstract: A radiant heating structure having a formed first sheet and a pair of reflectors therein removably postioned so as to be hingeable with another similar radiant heating structure. A pair of radiant energy tube holders are positioned within the formed sheet at opposite ends of the reflectors.

Abstract: A video display control system with a relative position memory between a controller and a foreground memory to permit changing the correspondence between a control indicator, indicating a display line on a monitor, and that one of the blocks of foreground memory controlling the foreground characters to be displayed on that display monitor screen line. The controller indicator signal is provided directly to a background memory to indicate which block of data therein is to control the display for the graphics background on that screen line. The relative position memory circuit also sets the first column in a test line which is to display in an allocated portion of the monitor screen. The relative position memory and the foreground memory control a symbol memory, and the outputs from the foreground memory, the symbol memory and the background memory are collected by a display controller capable of operating a display monitor.

Abstract: A conveyor with a frame and a guide rail for guiding the movable member supported on the frame with a tension imparting arrangement which applies a tensile force between the ends of the guide rail.

Abstract: A dry film curing machine utilizes ultraviolet lamps mounted in reflectors, which are positioned on opposite sides of a mesh or open type conveyor belt carrying the film to provide radiation for drying. The lamps are controlled by a circuit that regulates the intensity of the ultraviolet lamps to a set level as the lamp ages. The control is effective even though the arc in the lamp may deflect as the lamp warps under temperature differentials. A sensor is mounted in a housing and is positioned adjacent the lamp. The sensor housing eliminates reflected ultraviolet light from striking the sensor, to eliminate erroneous input signals. The sensor provides a signal that is directly proportional to ultraviolet lamp intensity and this signal is used to adjust the power (primarily the current) to the lamp through a microprocessor controlled power source to maintain the UV intensity at the set level.

Abstract: A key base or carrier permits a user to attach any off-the-shelf integrated circuit chip in dual in-line packages (DIP) thereto to form a switch-like device merely by bending the chip leads around the edges of the carrier. The carrier, with chip attached, is inserted into a housing between the rows of posts of a standard wire wrap socket and is rotated 90.degree. after insertion to wipe the bent chip leads on the socket posts to insure good electrical contact to the posts. The socket portion of the wire wrap socket assembly can then be used to plug in a ribbon cable, fitted with DIP headers (plugs) on each end, to transfer the electrical connections of the chip to the product circuit board. An independent switch, affixed to the wire wrap socket housing and actuated by the chip carrier, after all connections are made, signals the user's circuit that the chip is in place.

Abstract: A key device carries an integrated circuit chip or dual in-line package (DIP) and permits connecting the chip into a circuit board such as a logic circuit board of a computer terminal, from an exterior opening of the housing or cabinet carrying such circuit board. The key device connects any desired chip electrically to spring contacts of a socket located in alignment with the exterior opening. The socket in turn is connected through a ribbon cable for example to a connector on the circuit board at some desired location within the housing. The chip carrying key device is rotated 90.degree. after insertion to insure good electrical contact. When the key is to be removed, the key device is rotated 90.degree. to a position where it is electrically disconnected from the socket leads and can be removed from the housing. The chip can be reprogrammed if desired.

Abstract: A device for heating a room or building thermostat by radiant means or a combination of conduction, convection and radiation in such a manner as to cause localized thermal energy in the vicinity of the thermostat. The temperature of the area controlled by the thermostat is thus caused to be reduced by an amount approximately equal to the rise in temperature in the vicinity of the thermostat. The heater, as shown a small light bulb, is switched on by a timer for the time period during which the building or room temperature is to be reduced. The light is turned off when the area temperature is returned to the thermostat setting.