Conversion of constant volume heating/air conditioning systems
    1.
    发明授权
    Conversion of constant volume heating/air conditioning systems 失效
    恒量加热/空调系统的转换

    公开(公告)号:US5931227A

    公开(公告)日:1999-08-03

    申请号:US977164

    申请日:1997-11-24

    Inventor: James R. Graves

    CPC classification number: F24F3/0442 F24F11/0012 Y02B30/767

    Abstract: Constant volume multizone heating/air conditioning systems are converted to variable volume air conditioning systems. Energy conservation is achieved by converting the fan drive from one requiring constant volume air flow. Instead, the volume of air flow is governed by relative heating or cooling needs. Further, mixture of heated and cooled air to achieve the desired temperature is no longer required. Temperature sensors in a zone being heated/cooled detect actual temperature there. When the actual temperature indicates a need for cooling, the vent vanes of the system are opened and the heating vent vanes are closed. The fan speed and volume of air flow are then controlled to provide the required amounts of cooled air. Conversely, when heating is sensed to be needed, the heating and cooling air vent vanes positions are reversed and the fan speed regulated to supply the requisite amount of heated air.

    Abstract translation: 恒定体积多区域加热/空调系统被转换为可变容积的空调系统。 通过将风扇驱动器从需要恒定体积空气流量的驱动器转换来实现节能。 相反,空气流量由相对加热或冷却需求决定。 此外,不再需要加热和冷却的空气的混合物以达到期望的温度。 加热/冷却区域中的温度传感器检测其中的实际温度。 当实际温度表示需要冷却时,系统的通风叶片打开,加热通风叶片关闭。 然后控制空气流的风扇速度和体积以提供所需量的冷却空气。 相反,当需要检测到加热时,加热和冷却通风叶片位置相反,风扇速度被调节以提供必要量的加热空气。

    Scanner document absence code system
    7.
    发明授权
    Scanner document absence code system 失效
    扫描仪文件缺席代码系统

    公开(公告)号:US5119213A

    公开(公告)日:1992-06-02

    申请号:US559020

    申请日:1990-07-27

    CPC classification number: H04N1/00702 H04N1/00681 H04N1/00753

    Abstract: In an electronic imaging system in which a document is electronically imaged on a platen by a scanning electronic imager, a document for which manual handling is desired is manually positioned in a special manual registration position on the platen in which one corner of the document underlies a unique signal generating optical indicia positioned over that corner of the platen. Preferably, this optical indicia is a uniquely numbered bar code pattern on a stationary baffle, or other overlying surface, upstream of the document feeder platen transport, and preferably located in a start of scan area. The electronic imager is at least partially optically occluded from reading that unique bar code pattern by a document present in that manual registration position. (A document for which automatic feeding is desired may be placed in a document feeder and fed thereby onto the platen into a different registration position in which no portion of that document is interposed between that bar code and the imager.) The imager can read, or not read, that unique bar code to provide a unique control signal to control the document feeder and/or provide other desired functions, such as indicating that a previously manually placed document was left on the platen.

    Abstract translation: 在电子成像系统中,通过扫描电子成像器将文件电子地成像在压板上,需要手动处理的文件被手动地定位在文件夹的一个角落的特殊手动对位位置, 独特的信号产生光学标记位于压板的该角上。 优选地,该光学标记是固定挡板上的唯一编号的条形码图案,或者在文件馈送台板传送的上游的其他上覆表面,并且优选地位于扫描区域的开始处。 通过存在于该手动登记位置的文件读取唯一的条形码图案,电子成像器至少部分地光学遮蔽。 (需要自动进给的文件可以被放置在文件馈送器中并由此馈送到压板上到不同的配准位置,在该不同的配准位置,该文​​档的任何部分都不在该条形码和成像器之间。)成像器可以读取, 或不读取该唯一条形码以提供唯一的控制信号来控制文件馈送器和/或提供其它期望的功能,诸如指示先前手动放置的文档留在稿盘上。

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