Bottom bracket assembly and bicycle
US-2016223022-A1 · Aug 4, 2016 · US
Pipe diameter expansion apparatus and pipe diameter expansion method
US8978433B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8978433-B2 |
| Application number | US-201313952787-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 29, 2013 |
| Priority date | Sep 28, 2012 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
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A pipe diameter expansion apparatus includes: a hollow cylindrical member that can be placed in a pipe filled with water, and through which a coolant medium having a lower temperature than a freezing point of the water flows from one end to the other end; at least two plate-like fins provided to protrude outward from the cylindrical member; and a cold-heat insulator that is provided between the two fins, and reduces cold-heat transmission between inside and outside the cylindrical member.
First claim
Opening claim text (preview).
The invention claimed is: 1. A pipe diameter expansion apparatus comprising: a hollow cylindrical member which can be placed in a pipe filled with water, and through which a coolant medium having a lower solidification point than a freezing point of the water flows from one end to the other end thereof; two or more plate-like fins provided to protrude outward from the cylindrical member; and a cold-heat transmission reduction unit that is provided between the fins, and reduces…
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Operations & Transport · mapped topic
- B21D26/033Primary
Operations & Transport · mapped topic
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- What does patent US8978433B2 cover?
- A pipe diameter expansion apparatus includes: a hollow cylindrical member that can be placed in a pipe filled with water, and through which a coolant medium having a lower temperature than a freezing point of the water flows from one end to the other end; at least two plate-like fins provided to protrude outward from the cylindrical member; and a cold-heat insulator that is provided between the…
- Who is the assignee on this patent?
- Mitsubishi Heavy Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification B21D26/033. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 17 2015 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).