Abstract: The present invention relates to arrangement of devices, and, in particular doors, in the architecture of HVAC units. Where space is a consideration, having doors that are common and/or that can be used or nested in a common operative space, reduce the need of inventory of different parts, and allow for use of smaller interior HVAC space volumes in HVAC units.

Abstract: A structure to provide air flow an mixture in an HVAC unit utilizing a separate piece air deflector located within the lower housing of the HVAC unit and ribs to direct airflow, the separate piece air deflector configured to cause air deflection and airflow towards the distribution area of the unit.

Abstract: The invention relates to an electrochemical process for the production of sodium hydroxide and sulfuric acid from aqueous sodium sulfate solutions, said process comprising the feeding of an aqueous sodium sulfate solution into a salt splitter device comprising at least three compartments including a middle feed compartment which is between an anode compartment and a cathode compartment, wherein the feed compartment is separated from the anode compartment by a chemically-functionalized anion exchange membrane, and wherein the feed compartment is separated from the cathode compartment by a chemically-functionalized cation exchange membrane. Specifically, the chemically-functionalized anion exchange membrane of the present invention is a perfluorohydrocarbon polymer material to which has been grafted a plurality of benzo-crown ether groups which have been complexed with a metal ion selected from sodium, potassium and lithium.

Abstract: A buffer system for radio receivers includes an analog-to-digital converter, a digital cyclic storage device for continuously storing in digital form the audio signals last outputted thereby over a predetermined time interval, and a control circuit including a mode selector switch to select a Skip Mode, in which the receiver audio circuit receives the signals from the cyclic storage device with a slowly increasing delay from real-time, and another switch to connect the audio circuit to receive the audio signals real-time, and thus to skip a part of the broadcasted information. The mode selector may also select a Standby Mode for storing information broadcasted before the receiver has been turned on, and/or a Forward Mode for storing information broadcasted after the receiver has been turned off.

Abstract: A technique for compensating for frequency distortion in a band-limited communication channel, using a random-access memory (RAM) to store successive samples of a signal pulse, the samples having been precalculated to perform an equalization function prior to transmission of the pulse. The signal samples are retrieved, converted to analog form, and filtered to produce a precompensated analog pulse signal. In one embodiment of the invention, equalized profiles of a limited number of pulses of different shapes are stored in the RAM, and are retrieved as needed for transmittal through the band-limited channel. Thus the invention can perform its equalization function while facilitating encoding of the signal into a different form, such as modified duobinary code.