Automated Rig Activity Report Generation
US-2015371344-A1 · Dec 24, 2015 · US
Ambient-activated switch for downhole operations
US8944162B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8944162-B2 |
| Application number | US-52095707-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 18, 2007 |
| Priority date | Sep 18, 2007 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 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.
An apparatus includes a radiation source to output radiation after power is supplied. The apparatus also includes a power source to supply power. The apparatus includes an ambient-activated switch electrically coupled between the radiation source and the power source. The ambient-activated switch is to switch to an open position while a value for an ambient characteristic for the ambient-activated switch is at an ambient level for a surface of the Earth. The ambient-activated switch is to switch to a closed position while the value for the ambient characteristic for the ambient-activated switch is at a downhole ambient level, wherein the ambient-activated switch is to electrically couple the power source to the radiation source while in the closed position.
First claim
Opening claim text (preview).
What is claimed is: 1. An apparatus comprising: a neutron radiation source to output neutron radiation after power is supplied; a power source to supply the power; and an ambient-activated optical switch electrically coupled between the neutron radiation source and the power source, the ambient-activated optical switch being configured to switch to a decoupling condition while ambient light at the ambient-activated optical switch is at an ambient level for a surface of the Ear…
Assignees
Inventors
Classifications
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 US8944162B2 cover?
- An apparatus includes a radiation source to output radiation after power is supplied. The apparatus also includes a power source to supply power. The apparatus includes an ambient-activated switch electrically coupled between the radiation source and the power source. The ambient-activated switch is to switch to an open position while a value for an ambient characteristic for the ambient-activa…
- Who is the assignee on this patent?
- Dorffer Daniel F, Crawford Donald L, Halliburton Energy Serv Inc
- What technology area does this patent fall under?
- Primary CPC classification E21B47/00. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Feb 03 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).