Pneumatic detector assembly with bellows
US-9342969-B2 · May 17, 2016 · US
In-situ functionality test feature for advance pneumatic detector
US10466124B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10466124-B2 |
| Application number | US-201615383390-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2016 |
| Priority date | Dec 19, 2016 |
| Publication date | Nov 5, 2019 |
| Grant date | Nov 5, 2019 |
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 advance pneumatic detector to indicate pressure changes in an environment includes a switch, a pressure tube, an endcap, a piston, and a magnet. The pressure tube is connected to the switch. The endcap is disposed on an end of the pressure tube opposite from the switch. The piston is disposed within and forms a seal against the pressure tube. The piston is slidably engaged with the pressure tube. The magnet is slidably attached to and surrounds a portion of the pressure tube. The magnet is configured to control the positioning of the piston within the pressure tube.
First claim
Opening claim text (preview).
The invention claimed is: 1. An advance pneumatic detector to indicate pressure changes in an environment, the advance pneumatic detector comprising: a switch; a pressure tube connected to the switch; an endcap disposed on an end of the pressure tube opposite from the switch; a piston disposed within and forming a seal against the pressure tube, wherein the piston is slidably engaged with the pressure tube, wherein the piston comprises a passage extending through the piston; and a magnet slidably attached to the pressure tube, wherein the magnet is configured to control the positioning of the piston within the pressure tube. 2. The advance pneumatic detector of claim 1 , wherein the switch further comprises: a housing with a cavity between a first retainer portion and a second retainer portion, wherein the cavity is in fluid communication with the pressure tube and the piston; a contact pin held in the first retainer portion; a fault diaphragm held in the cavity of the housing near the second retainer portion; and an alarm diaphragm held in the cavity of the housing near the first retainer portion. 3. The switch of claim 1 , wherein at least one of the piston and the magnet comprises a permanent magnet or an electromagnet. 4. The advance pneumatic detector of claim 1 , wherein the piston divides the pressure tube into a first chamber and a second chamber, the first chamber between the housing and the piston and the second chamber between the piston and the endcap, and further wherein the passage fluidly connects the first chamber and the second chamber.
Assignees
Inventors
Classifications
with diaphragm · CPC title
actuated due to expansion or contraction of a fluid with or without vaporisation (the fluid forming a contact of the switch H01H29/04, H01H29/30) · CPC title
Hydraulic or pneumatic actuation of the alarm, e.g. by change of fluid pressure · CPC title
- G08B13/20Primary
Actuation by change of fluid pressure · CPC title
using switching means · 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 US10466124B2 cover?
- An advance pneumatic detector to indicate pressure changes in an environment includes a switch, a pressure tube, an endcap, a piston, and a magnet. The pressure tube is connected to the switch. The endcap is disposed on an end of the pressure tube opposite from the switch. The piston is disposed within and forms a seal against the pressure tube. The piston is slidably engaged with the pressure …
- Who is the assignee on this patent?
- Kidde Tech Inc
- What technology area does this patent fall under?
- Primary CPC classification G08B13/20. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 05 2019 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).