# US 2014/0150574 A1 · Environmental chamber > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0150574 A1 - Document ID: US20140150574A1 - Status: Published application - Kind: A1 - Application number: 14/089,257 - Filed: 2013-11-25 - Published: 2014-06-05 - Earliest claimed: 2012-11-30 - Assignees: Espec Corp. - Applicants: Espec Corp. - Inventors: Osamu Matsuguma; Kensuke Akamatsu - Web page: https://patentgrep.com/patent/US20140150574A1 ## CPC - G01N 17/002: {Test chambers} - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) ## Abstract An environmental chamber includes a testing tub in which a testing space is formed. The testing tub has a front wall, a left sidewall, a right sidewall, a rear wall, and a ceiling part, and is divided into a lower tub part and an upper tub part by a dividing surface extended in a direction inclined downwardly and frontwardly. The left and right sidewalls are respectively divided into two portions by the dividing surface. An inner surface of the upper tub part includes at least a part of an inner surface of each of the ceiling part, the front wall, the left sidewall, and the right sidewall. The upper tub part is supported by the lower tub part to be able to open the testing space. ## Claims ### Claim 1 An environmental chamber comprising a testing tub in which a testing space for arranging a specimen is formed, wherein the testing tub has a front wall, a left sidewall, a right sidewall, a rear wall, and a ceiling part, and is divided into a lower tub part and an upper tub part by a dividing surface extended in a direction inclined downwardly and frontwardly, the left sidewall and the right sidewall are respectively divided into two portions by the dividing surface, and an inner surface of the upper tub part includes at least a part of an inner surface of each of the ceiling part, the front wall, the left sidewall, and the right sidewall, a rear end part of the dividing surface is positioned at a rear side of a center of the ceiling part in a front and rear direction thereof, and the upper tub part is supported by the lower tub part to be able to open the testing space. ### Claim 2 (depends on 1) The environmental chamber according to claim 1, wherein a front end part of the dividing surface is positioned at a lower side than a center of the front wall in a height direction thereof. ### Claim 3 (depends on 1) The environmental chamber according to claim 1, further comprising an internal tub body detachably arranged on the lower tub part, wherein the internal tub body has a sidewall part along inner surfaces of portions included in the upper tub part in the front wall, the left sidewall, and the right sidewall, and lower end surfaces of the sidewall part are formed correspondingly to an inclined direction of the dividing surface, and the internal tub body remains on the lower tub part in a state where the upper tub part moves to open the testing space. ### Claim 4 (depends on 3) The environmental chamber according to claim 3, wherein an upper surface of the internal tub body is opened. ### Claim 5 (depends on 3) The environmental chamber according to claim 3, wherein the internal tub body includes an upper surface part that is bridged over an upper end part of the sidewall part, and at least a part of the internal tub body is configured by a transparent material. ### Claim 6 (depends on 2) The environmental chamber according to claim 2, further comprising an internal tub body detachably arranged on the lower tub part, wherein the internal tub body has a sidewall part along inner surfaces of portions included in the upper tub part in the front wall, the left sidewall, and the right sidewall, and lower end surfaces of the sidewall part are formed to correspond to an inclined direction of the dividing surface, and the internal tub body remains on the lower tub part in a state where the upper tub part moves to open the testing space. ### Claim 7 (depends on 6) The environmental chamber according to claim 6, wherein an upper surface of the internal tub body is opened. ### Claim 8 (depends on 6) The environmental chamber according to claim 6, wherein the internal tub body includes an upper surface part that is bridged over an upper end part of the sidewall part, and at least a part of the internal tub body is configured by a transparent material. ### Claim 9 (depends on 1) The environmental chamber according to claim 1, further comprising: a handlebar protruded to a rear side of the testing tub; and wheels arranged at a lower end part of the environmental chamber. ### Claim 10 (depends on 1) The environmental chamber according to claim 1, wherein a transparent plate is provided in at least one of the ceiling part and the front wall. ### Claim 11 (depends on 1) The environmental chamber according to claim 1, wherein the upper tub part is configured by a transparent member. ### Claim 12 An environmental chamber comprising: a testing tub in which a testing space for arranging a specimen is formed; a handlebar protruded to a rear side of the testing tub; and wheels arranged at a lower end part of the environmental chamber, wherein the testing tub has a front wall, a left sidewall, a right sidewall, a rear wall, and a ceiling part, and is divided into a lower tub part and an upper tub part by a dividing surface extended in a direction inclined downwardly and frontwardly, the left sidewall and the right sidewall are respectively divided into two portions by the dividing surface, and an inner surface of the upper tub part includes at least a part of an inner surface of each of the ceiling part, the front wall, the left sidewall, and the right sidewall, a rear end part of the dividing surface is positioned at a rear side of a center of the ceiling part in a front and rear direction thereof, a front end part of the dividing surface is positioned at a lower side than a center of the front wall in a height direction thereof, and the upper tub part is supported by the lower tub part to be able to open the testing space.