Drill tool
US-9221108-B2 · Dec 29, 2015 · US
Throw-away rotating tool
US8931982B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8931982-B2 |
| Application number | US-73679109-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 8, 2009 |
| Priority date | Dec 8, 2009 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A throw-away rotating tool includes plural protrusions formed in a part of an outer peripheral wall of a projecting coupling portion. Since the twist angle and a twist direction of the protrusions are set in such a way that with relative rotation when coupling the projecting coupling portion and erected portions together, due to the reaction force received by the protrusions from inner peripheral walls, the projecting coupling portion is pulled to the rear and side of the erected portions and the projecting coupling portion is stably held between the erected portions. Since the number of portions that require stringent dimension control and high machining accuracy can be reduced, productivity can be improved.
First claim
Opening claim text (preview).
The invention claimed is: 1. A throw-away rotating tool comprising: a body having a plurality of erected portions erected around an axis at an interval from each other; and a cutting head made from a material harder than the body and having a projecting coupling portion projected from a rear end, the projecting coupling portion being inserted in a space formed by the erected portions and relatively rotated around the axis to couple the projecting coupling portion and the erected po…
Assignees
Inventors
Classifications
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
Operations & Transport · mapped topic
- B23B51/02Primary
Operations & Transport · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8931982B2 cover?
- A throw-away rotating tool includes plural protrusions formed in a part of an outer peripheral wall of a projecting coupling portion. Since the twist angle and a twist direction of the protrusions are set in such a way that with relative rotation when coupling the projecting coupling portion and erected portions together, due to the reaction force received by the protrusions from inner peripher…
- Who is the assignee on this patent?
- Osawa Jiro, Aoyama Takuma, Itoh Tasuku, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification B23B51/02. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 13 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).