Flow sensor devices and systems
US-2020386593-A1 · Dec 10, 2020 · US
Sealing diaphragm and methods of manufacturing said diaphragm
US11261857B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11261857-B2 |
| Application number | US-201916448516-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 21, 2019 |
| Priority date | Aug 26, 2013 |
| Publication date | Mar 1, 2022 |
| Grant date | Mar 1, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Described is a method for manufacturing a diaphragm assembly through the use of injection molding. The method can avoid the use of PTFE as a chemically resistant coating. Further, the method can increase overall adherence of a polymer diaphragm to an insert through the use of an interference surface on at least the surface of a head of the insert.
First claim
Opening claim text (preview).
What is claimed is: 1. A diaphragm assembly comprising: a one piece metal insert having a head portion, a body portion, a narrowing portion and a threaded portion, wherein the head portion is located at a first end of the body portion, the narrowing portion is located at a second end of the body portion and the threaded portion is located at an end of the narrowing portion opposite the body portion; wherein the body portion is cylindrical and an outermost cylindrical surface of the body portion extends radially outward at least as far as an outermost cylindrical surface of the head portion, and wherein the head portion of the insert defines at least a first outer groove and a second outer groove; and an injection-molded polymer diaphragm configured to at least partially surround the head portion of the insert and extend into the first outer groove and the second outer groove. 2. The assembly of claim 1 , wherein the head portion of the insert further comprises a tapped hole. 3. The assembly of claim 1 , wherein the polymer comprises natural PVDF.
Assignees
Inventors
Classifications
having plate-like flexible members, e.g. diaphragms (F04B43/14 takes precedence) · CPC title
anchoring by forcing the material to pass through a hole in the article · CPC title
Diaphragms · CPC title
Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts · CPC title
PVDF, i.e. polyvinylidene fluoride · CPC title
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Frequently asked questions
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- What does patent US11261857B2 cover?
- Described is a method for manufacturing a diaphragm assembly through the use of injection molding. The method can avoid the use of PTFE as a chemically resistant coating. Further, the method can increase overall adherence of a polymer diaphragm to an insert through the use of an interference surface on at least the surface of a head of the insert.
- Who is the assignee on this patent?
- Blue White Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification F04B43/0054. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 01 2022 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).