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Method for measuring thread element at end portion of pipe or tube
US9267900B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9267900-B2 |
| Application number | US-201114343903-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 13, 2011 |
| Priority date | Sep 13, 2011 |
| Publication date | Feb 23, 2016 |
| Grant date | Feb 23, 2016 |
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- Title
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Abstract
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The present invention provides a method for automatically measuring a thread element at an end portion of a pipe or tube P after thread processing, on a thread processing line 100 in which thread processing is performed on the end portion of each pipe or tube P which is successively conveyed, comprising: a cleaning step of cleaning the end portion of the pipe or tube by a thread cleaning apparatus 30 after the thread processing; a drying step of drying the end portion of the pipe or tube P cleaned in the cleaning step by a thread drying apparatus 40 ; and a measuring step of measuring the thread element at the end portion of the pipe or tube P by an automatic thread element measurement 50 after drying, wherein the end portion of the pipe or tube is put under a clean atmosphere at least in the measuring step.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for automatically measuring a thread element at an end portion of a pipe or tube after thread processing is performed on the end portion of the pipe or tube, on a thread processing line in which thread processing is performed on the end portion of each pipe or tube which is successively conveyed, comprising: a cleaning step of cleaning the end portion of the pipe or tube after the thread processing is performed on the end portion of the pipe or tube; a drying step of drying the end portion of the pipe or tube after the end portion of the pipe or tube is cleaned in the cleaning step; and a measuring step of measuring the thread element at the end portion of the pipe or tube after the end portion of the pipe or tube is dried in the drying step, wherein the end portion of the pipe or tube is put under a clean atmosphere at least in the measuring step. 2. The method for measuring a thread element at an end portion of a pipe or tube according to claim 1 , wherein the end portion of the pipe or tube is put under a clean atmosphere at least during a period from the drying step to the measuring step after thread processing is performed on the end portion of the pipe or tube. 3. The method for measuring a thread element at an end portion of a pipe or tube according to claim 1 , wherein the clean atmosphere is under positive pressure when the end portion of the pipe or tube is put under the clean atmosphere. 4. A method for automatically measuring a thread element at an end portion of a pipe or tube after thread processing is performed on the end portion of the pipe or tube, on a thread processing line in which thread processing is performed on the end portion of each pipe or tube which is successively conveyed, comprising: a cleaning step of cleaning the end portion of the pipe or tube by ejecting granular dry ice with compressed air onto the end portion of the pipe or tube after thread processing is performed on the end portion of the pipe or tube; and a measuring step of measuring the thread element at the end portion of the pipe or tube after the end portion of the pipe or tube is cleaned in the cleaning step, wherein the end portion of the pipe or tube is put under a clean atmosphere at least in the measuring step. 5. The method for measuring a thread element at an end portion of a pipe or tube according to claim 4 , wherein the clean atmosphere is under positive pressure when the end portion of the pipe or tube is put under the clean atmosphere.
Assignees
Inventors
Classifications
- G01N21/9515Primary
Objects of complex shape, e.g. examined with use of a surface follower device (measuring contours and curvatures G01B11/24) · CPC title
rotating about an axis parallel to the surface · CPC title
- G01B11/2425Primary
of screw-threads · CPC title
Cleaning the external surfaces {(B08B9/021 takes precedence)} · CPC title
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9267900B2 cover?
- The present invention provides a method for automatically measuring a thread element at an end portion of a pipe or tube P after thread processing, on a thread processing line 100 in which thread processing is performed on the end portion of each pipe or tube P which is successively conveyed, comprising: a cleaning step of cleaning the end portion of the pipe or tube by a thread cleaning appa…
- Who is the assignee on this patent?
- Sakai Kenta, Honda Tatsuro, Hiraoka Seiji, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G01N21/9515. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 23 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).