公开(公告)号：US20060070572A1

公开(公告)日：2006-04-06

申请号：US11294272

申请日：2005-12-05

申请人： Richard Duffy ,  Eugune Sessa

发明人： Richard Duffy ,  Eugune Sessa

IPC分类号： B05C19/00 ,  B05C5/00 ,  B05B7/00

CPC分类号： F16B33/008 ,  B05B13/0221 ,  B05B13/06 ,  B05B14/10 ,  B05C9/14

摘要： A process and apparatus are provided for the application of a fluoropolymer coating to the threads of an internally threaded fastener. The fastener has a body and a threaded bore extending to opposing ends of the body to define opposing first and second openings in the fastener. The fastener is moved on a conveyor along a path of travel with its threaded bore in a predetermined orientation. As the fastener moves along its path of travel, the first opening is closed by means of an obstructing member, while an air stream carrying entrained fluoropolymer powder is directed from a nozzle through the second opening and into the threaded bore. The nozzle is stationary and is located at an axially displaced position relative to the second opening of the fastener and immediately adjacent the conveyor. Preferably, the nozzle includes a diffuser which directs the air stream and entrained fluoropolymer powder into the fastener bore in a diverging pattern. After the fluoropolymer powder is deposited onto the threads of the fastener, the conveyor moves the fastener through a heating station where the fluoropolymer powder is raised to its melting temperature causing it to melt and fuse into a generally continuous film covering the fastener's threads.

摘要翻译： 提供了一种将含氟聚合物涂层应用于内螺纹紧固件的螺纹的工艺和设备。 紧固件具有延伸到本体的相对端部的主体和螺纹孔，以在紧固件中限定相对的第一和第二开口。 紧固件沿着行进路径在传送带上以其螺纹孔以预定取向移动。 当紧固件沿其行进路径移动时，第一开口通过阻塞构件封闭，而携带夹带的含氟聚合物粉末的空气流从喷嘴通过第二开口引导到螺纹孔中。 喷嘴是静止的并且位于相对于紧固件的第二开口的轴向位移位置，并且紧邻输送机。 优选地，喷嘴包括扩散器，其将空气流和夹带的含氟聚合物粉末以发散图案引导到紧固件孔中。 在氟聚合物粉末沉积到紧固件的螺纹上之后，输送机将紧固件移动通过加热站，其中氟聚合物粉末升高到其熔融温度，使其熔化并熔化成覆盖紧固件螺纹的大致连续的膜。

公开(公告)号：US07211147B2

公开(公告)日：2007-05-01

申请号：US11294272

申请日：2005-12-05

申请人： Richard Duffy ,  Eugune Sessa

发明人： Richard Duffy ,  Eugune Sessa

IPC分类号： B05B13/06 ,  B05B13/02 ,  B05C19/00

CPC分类号： F16B33/008 ,  B05B13/0221 ,  B05B13/06 ,  B05B14/10 ,  B05C9/14

摘要： An apparatus for the application of a fluoropolymer coating to the threads of an internally threaded fastener. The fastener has a body and a threaded bore extending to opposing ends of the body to define opposing first and second openings in the fastener. A conveyor moves the fastener along a path of travel with its threaded bore in a predetermined orientation. An obstruction member closes, the first opening, while a nozzle directs an air stream carrying entrained fluoropolymer powder through the second opening and into the threaded bore. The nozzle is stationary and is located at an axially displaced position relative to the second opening of the fastener and immediately adjacent the conveyor. A heating station heats the fluoropolymer powder to its melting temperature causing it to melt and fuse into a generally continuous film covering the fastener's threads.

摘要翻译： 一种用于将含氟聚合物涂层应用于内螺纹紧固件的螺纹的装置。 紧固件具有延伸到本体的相对端部的主体和螺纹孔，以在紧固件中限定相对的第一和第二开口。 输送机沿着具有螺纹孔的行进路径以预定的方向移动紧固件。 阻塞构件封闭第一开口，而喷嘴引导携带夹带的含氟聚合物粉末的空气流穿过第二开口并进入螺纹孔。 喷嘴是静止的并且位于相对于紧固件的第二开口的轴向位移位置，并且紧邻输送机。 加热站将含氟聚合物粉末加热到其熔融温度，使其熔化并熔化成覆盖紧固件螺纹的大致连续的膜。

公开(公告)号：US06972137B2

公开(公告)日：2005-12-06

申请号：US10428162

申请日：2003-05-01

申请人： Richard Duffy ,  Eugune Sessa

发明人： Richard Duffy ,  Eugune Sessa

IPC分类号： B05D7/24 ,  B05B5/047 ,  B05B7/14 ,  B05B13/02 ,  B05B13/06 ,  B05B15/04 ,  B05C9/14 ,  B05D7/22 ,  F16B33/00 ,  B05D1/12

CPC分类号： F16B33/008 ,  B05B13/0221 ,  B05B13/06 ,  B05B14/10 ,  B05C9/14

摘要： A process and apparatus are provided for the application of a fluoropolymer coating to the threads of an internally threaded fastener. The fastener has a body and a threaded bore extending to opposing ends of the body to define opposing first and second openings in the fastener. The fastener is moved on a conveyor along a path of travel with its threaded bore in a predetermined orientation. As the fastener moves along its path of travel, the first opening is closed by means of an obstructing member, while an air stream carrying entrained fluoropolymer powder is directed from a nozzle through the second opening and into the threaded bore. The nozzle is stationary and is located at an axially displaced position relative to the second opening of the fastener and immediately adjacent the conveyor. Preferably, the nozzle includes a diffuser which directs the air stream and entrained fluoropolymer powder into the fastener bore in a diverging pattern. After the fluoropolymer powder is deposited onto the threads of the fastener, the conveyor moves the fastener through a heating station where the fluoropolymer powder is raised to its melting temperature causing it to melt and fuse into a generally continuous film covering the fastener's threads.

摘要翻译： 提供了一种将含氟聚合物涂层应用于内螺纹紧固件的螺纹的工艺和设备。 紧固件具有延伸到本体的相对端部的主体和螺纹孔，以在紧固件中限定相对的第一和第二开口。 紧固件沿着行进路径在传送带上以其螺纹孔以预定取向移动。 当紧固件沿其行进路径移动时，第一开口通过阻塞构件封闭，而携带夹带的含氟聚合物粉末的空气流从喷嘴通过第二开口引导到螺纹孔中。 喷嘴是静止的并且位于相对于紧固件的第二开口的轴向位移位置，并且紧邻输送机。 优选地，喷嘴包括扩散器，其将空气流和夹带的含氟聚合物粉末以发散图案引导到紧固件孔中。 在氟聚合物粉末沉积到紧固件的螺纹上之后，输送机将紧固件移动通过加热站，其中氟聚合物粉末升高到其熔融温度，使其熔化并熔化成覆盖紧固件螺纹的大致连续的膜。