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1. 发明授权

US06779552B1 Domestic hot water distribution and resource conservation system 失效
标题翻译：国内热水配送和资源保护体系
公开(公告)号：US06779552B1
公开(公告)日：2004-08-24
申请号：US10146640
申请日：2002-05-14
申请人： Frederick E. Coffman
发明人： Frederick E. Coffman
IPC分类号： F16K4900
CPC分类号： F24D17/0078 , B60R15/00 , F16K15/18 , Y10T137/6497 , Y10T137/6969 , Y10T137/85954
摘要： A domestic water distribution system that continuously delivers heated water to one or more hot water faucets. The system utilizes a convective return loop from the desired faucets, which is regulated by a flow control device. The control device is specifically designed to allow unhindered flow during circulation without allowing reverse flow when a faucet is opened. The flow control device has an easily accessible handwheel adjustment that is used to select the three modes of operation and the flow rate. These modes are called: HELD-ON, HELD-OFF, and NORMAL-OPERATION. With the first two modes being used to fill and flush the system as is necessary with new installation and recreation vehicles. Also, a lighter-than-water checking element is used, which allows the system to function in single-level plumbing installations without the need for inclined supply and return routing. The circulation is further assured by having the plumbing return and cold water supply connected to the base of the water heater, which creates a flushing action of sediment that accumulates inside and since plumbing insulation is not restricted, heat loss is limited.
摘要翻译：一种将一个或多个热水龙头连续输送加热水的家用配水系统。该系统利用来自所需水龙头的对流返回回路，该回路由流量控制装置调节。控制装置专门设计成允许循环期间不受阻的流动，而当水龙头打开时不允许逆流。流量控制装置具有容易接近的手轮调节，用于选择三种操作模式和流量。这些模式被称为：HELD-ON，HELD-OFF和NORMAL-OPERATION。使用前两种模式用于填充和冲洗系统，如新安装和娱乐车辆所必需的。此外，使用比水更轻的检查元件，其允许系统在单级管道安装中运行，而不需要倾斜的供应和返回路由。通过将管路返回和冷水供应连接到热水器的底部进一步确保循环，这产生了内部积聚的沉积物的冲洗作用，并且由于管道绝缘不受限制，热损失受到限制。

2. 发明授权

US5007968A Process and apparatus for treating articles of substantial thickness 失效
标题翻译：用于处理相当厚度的制品的方法和装置
公开(公告)号：US5007968A
公开(公告)日：1991-04-16
申请号：US387333
申请日：1989-07-28
申请人： Frederick E. Coffman , Charles H. Pelton
发明人： Frederick E. Coffman , Charles H. Pelton
IPC分类号： C23F1/08 , H05K3/06
CPC分类号： H05K3/068 , C23F1/08
摘要： A method and apparatus is provided for chemically treating articles, often with a liquid treatment fluid that is corrosive, while the articles are being delivered along a path through a substantially closed chamber. During treatment, the articles pass through a nip formed between opposed rollers, at least one of which is rotatably driven. Because of the thickness of the articles, at least one roller of the nip must be moved away from the other roller in order for articles to pass through the nip. The roller being moved remains positively driven as it moves away from the nip and remains driven until the nip is again closed, all without interferring with the drive.
摘要翻译：提供了一种方法和装置，用于在制品沿着通过基本封闭的腔室的路径被递送时，经常用具有腐蚀性的液体处理流体进行化学处理。在处理期间，制品通过相对的辊之间形成的辊隙，其中至少一个被可旋转地驱动。由于制品的厚度，必须使辊隙中的至少一个辊子从另一个辊子移开，以使物品通过辊隙。被移动的辊子随着其离开辊隙移动而保持正向驱动，并保持驱动，直到辊隙再次被关闭，而不会干扰驱动器。

3. 发明授权

US4755105A Impeller improvement 失效
标题翻译：叶轮改良
公开(公告)号：US4755105A
公开(公告)日：1988-07-05
申请号：US923385
申请日：1986-10-27
申请人： G. Allen Blakeslee , Frederick E. Coffman
发明人： G. Allen Blakeslee , Frederick E. Coffman
IPC分类号： F04D27/00 , F04D29/02 , F04D29/28 , F04D29/18
CPC分类号： F04D27/00 , F04D29/281
摘要： An impeller is provided that is adapted to be rotationally driven, and which is constructed of a resiliently stretchable elastomeric material, such that, with increased centrifugal force that is applied to the impeller vanes with increased rotation of the impeller, the impeller increases in diameter and provides increased output performance beyond the output performance of a non-stretchable impeller of the same general size as the impeller at rest.
摘要翻译：提供了一种适于旋转驱动的叶轮，其由弹性可拉伸的弹性体材料制成，使得随着离心力的增加，随着叶轮的旋转增加而叶轮叶片的增加，叶轮的直径增加，提供的输出性能超出了与叶轮静止时相同尺寸的不可拉伸叶轮的输出性能。

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