公开(公告)号：US5330699A

公开(公告)日：1994-07-19

申请号：US38874

申请日：1993-03-29

申请人： Daniel W. Shetler ,  Larry W. Bryson

发明人： Daniel W. Shetler ,  Larry W. Bryson

IPC分类号： A47L9/24 ,  B29C43/06 ,  B29C43/22 ,  B29C49/00 ,  B29C49/52 ,  B29C59/04 ,  F16L11/118 ,  B29C53/30

CPC分类号： B29C49/52 ,  A47L9/24 ,  B29C43/226 ,  B29C49/0021 ,  B29C59/043 ,  F16L11/118 ,  B29C2043/023 ,  B29C2791/007 ,  B29C43/06 ,  B29L2023/00 ,  B29L2023/18 ,  Y10S138/11

摘要： A method and apparatus for manufacturing a hose for a vacuum cleaner, such hose having anti-whistling characteristics. In a standard blow molding process, a blow pipe is configured with a plurality of printing rollers having arcuate outer surfaces configured and spaced in such a manner as to assure engagement of the entirety of the hose with a printing roller during the manufacturing process. The printing rollers are provided with apertures which, upon engagement with the tacky material of the inner surface of inwardly extending corrugations causes indentations or protrusions in such surface. The roughened interior surface prevents the formation of audible harmonics when air passes through the tube in response to a vacuum source at one end thereof.

摘要翻译： 一种用于制造真空吸尘器的软管的方法和装置，这种软管具有防啸叫特性。 在标准吹塑工艺中，吹塑管配置有多个印刷辊，该印刷辊具有弓形外表面，其形状和间隔设置为确保在制造过程中整个软管与印刷辊的接合。 印刷辊设置有孔，该孔在与向内延伸的波纹的内表面的粘性材料接合时在该表面中引起凹陷或突起。 当空气在其一端响应于真空源通过管时，粗糙的内表面防止形成可听到的谐波。

公开(公告)号：US5657793A

公开(公告)日：1997-08-19

申请号：US571705

申请日：1995-12-06

申请人： Daniel W. Shetler ,  Larry W. Bryson

发明人： Daniel W. Shetler ,  Larry W. Bryson

IPC分类号： A47L9/24 ,  B29C43/06 ,  B29C43/22 ,  B29C49/00 ,  B29C49/52 ,  B29C59/04 ,  F16L11/118 ,  F16L11/11

CPC分类号： B29C49/52 ,  A47L9/24 ,  B29C43/226 ,  B29C49/0021 ,  B29C59/043 ,  F16L11/118 ,  B29C2043/023 ,  B29C2791/007 ,  B29C43/06 ,  B29L2023/00 ,  B29L2023/18 ,  Y10S138/11

摘要： A method and apparatus for manufacturing a hose for a vacuum cleaner, such hose having anti-whistling characteristics. In a standard blow molding process, a blow pipe is configured with a plurality of printing rollers having arcuate outer surfaces configured and spaced in such a manner as to assure engagement of the entirety of the hose with a printing roller during the manufacturing process. The printing rollers are provided with apertures which, upon engagement with the tacky material of the inner surface of inwardly extending corrugations causes indentations or protrusions in such surface. The roughened interior surface prevents the formation of audible harmonics when air passes through the tube response to a vacuum source at one end thereof.

摘要翻译： 一种用于制造真空吸尘器的软管的方法和装置，这种软管具有防啸叫特性。 在标准吹塑工艺中，吹塑管配置有多个印刷辊，该印刷辊具有弓形外表面，其形状和间隔设置为确保在制造过程中整个软管与印刷辊的接合。 印刷辊设置有孔，该孔在与向内延伸的波纹的内表面的粘性材料接合时在该表面中引起凹陷或突起。 粗糙的内表面防止当空气在其一端通过管对真空源的响应时形成可听到的谐波。