Mechanical inertial igniter with high-height drop safety feature for thermal batteries and the like
US-9123487-B2 · Sep 1, 2015 · US
Method for initiating thermal battery having high-height drop safety feature
US9841263B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9841263-B2 |
| Application number | US-201514828395-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 17, 2015 |
| Priority date | Jul 10, 2010 |
| Publication date | Dec 12, 2017 |
| Grant date | Dec 12, 2017 |
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 method for initiating a thermal battery including: releasing an engagement between an element and a striker mass upon an acceleration time and magnitude greater than a first threshold; and moving at least one member into a path of the element to prevent the element from releasing the striker mass only where the acceleration time and magnitude is greater than a second threshold, the second threshold being greater than the first threshold.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for initiating a thermal battery, the method comprising: releasing an engagement between an element and a striker mass upon an acceleration time and magnitude greater than a first threshold such that the striker mass is movable towards one of a percussion cap or pyrotechnic material; and moving at least one member into a path of the element to prevent the element from releasing the striker mass only where the acceleration time and magnitude is greater than a second threshold, the second threshold being greater than the first threshold. 2. The method of claim 1 , wherein the moving comprises translating the at least one member into the path. 3. The method of claim 1 , wherein the moving comprises rotating the at least one member into the path. 4. The method of claim 1 , further comprising returning the at least one member from the path when the acceleration time and magnitude lowers from the second threshold. 5. The method of claim 1 , further comprising maintaining the at least one member in the path after the acceleration time and magnitude reaches the second threshold.
Assignees
Inventors
Classifications
operated by a particular acceleration-time function · CPC title
Details of fuzes (except F42C15/00) · CPC title
Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch {(wherein the liquid constitutes a contact of the switch H01H29/002)} · CPC title
- F42C15/24Primary
wherein the safety or arming action is effected by inertia means (F42C15/196, F42C15/20 take precedence) · CPC title
Damping means to avoid unwanted response · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9841263B2 cover?
- A method for initiating a thermal battery including: releasing an engagement between an element and a striker mass upon an acceleration time and magnitude greater than a first threshold; and moving at least one member into a path of the element to prevent the element from releasing the striker mass only where the acceleration time and magnitude is greater than a second threshold, the second thr…
- Who is the assignee on this patent?
- Rastegar Jahangir S, Omnitek Partners L L C
- What technology area does this patent fall under?
- Primary CPC classification F42C15/24. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 12 2017 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).