Clean Air Device and Dust Inspecting Method
US-2018214861-A1 · Aug 2, 2018 · US
Safety cabinet
US11273438B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11273438-B2 |
| Application number | US-201816474522-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 19, 2018 |
| Priority date | Jun 14, 2017 |
| Publication date | Mar 15, 2022 |
| Grant date | Mar 15, 2022 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
Provided is a safety cabinet that prevents oversights in airtightness tests and HEPA filter penetration ratio tests even if a pathogen or the like leaks from a workspace wall surface in the interior of the safety cabinet. The safety cabinet includes: a work surface at the bottom of a workspace; a front panel at the front of the workspace; a work opening section below the front panel; and a first air purification means that filters exhaust air that is air discharged from within the workspace. The safety cabinet is characterized in that the non-workspace sides of a side wall surface and a back wall surface of the workspace are formed by an outer wall of a device with prescribed airtightness performance.
First claim
Opening claim text (preview).
The invention claimed is: 1. A safety cabinet comprising: a work surface on a bottom of a workspace; a front panel at a front of the workspace; a work opening section below the front panel; a first air filter configured to filter exhaust air for exhausting air in the workspace, an outer wall forming non-workspace sides of a side wall surface and a back wall surface of the workspace; an opening section below the work surface at the bottom of the workspace; a penetration ratio test cover which covers the opening section and seals a space in which the first air filter is disposed; and a test blowing unit connected to the penetration ratio test cover.
Assignees
Inventors
Classifications
Handling hazardous material · CPC title
Enclosures; Chambers (provided with manipulation devices or glove boxes B25J21/00) · CPC title
Filter · CPC title
- B01L1/50Primary
for storing hazardous materials in the laboratory, e.g. cupboards, waste containers (sample containers B01L3/50) · CPC title
Apparatus for enzymology or microbiology · CPC title
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Frequently asked questions
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- What does patent US11273438B2 cover?
- Provided is a safety cabinet that prevents oversights in airtightness tests and HEPA filter penetration ratio tests even if a pathogen or the like leaks from a workspace wall surface in the interior of the safety cabinet. The safety cabinet includes: a work surface at the bottom of a workspace; a front panel at the front of the workspace; a work opening section below the front panel; and a firs…
- Who is the assignee on this patent?
- Hitachi Industry Equipment Systems Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B01L1/50. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 15 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).