TEMPERATURE CONTROL APPARATUS

• US 3,553,426 A
• Filed: 03/22/1968
• Issued: 01/05/1971
• Est. Priority Date: 03/22/1968
• Status: Expired due to Term

• Current Assignee: Aaron J. Fink
• Original Assignee: Aaron J. Fink
• Inventors: Fink, Aaron J.
• Application Number:
  US04/715,223
• Time in Patent Office: 1,019 Days
• US Class Current: 219/406
• CPC Class Codes: C12M 41/14 Incubators; Climatic chambers per se B01L1/00

Abstract

A temperature control apparatus incorporates separate compartments, adapted to be isolated from each other, but subject to the same constant temperature.

Claims

1. A temperature control apparatus useful as an incubation device comprising:

a housing formed with spaced walls, having an access door at its face providing an airtight enclosure when said door is closed;

first and second compartments independently contained within said housing, disposed adjacent to each other, each compartment having separate wall structures, and a door for sealing said first compartment so that said first compartment provides an atmosphere separate and independent of that of said second compartment; and

a continuous electrical heating element positioned between said spaced walls encompassing said compartments, said element having means for connection to an electrical power supply, and being electrically insulated from adjacent conductive walls, wherein said first compartment includes a separate wall structure within said housing, and a removable door for forming a sealed enclosure of said first compartment, including an eccentric cam locking means for urging said removable door against said separate wall structure, and for allowing removal of said door.

2. A temperature control device as in claim 1, wherein said removable door is transparent.

3. a temperature control apparatus useful as an incubation device comprising:

a housing formed with spaced walls, having an access door at its face providing an airtight enclosure when said door is closed;

first and second compartments independently contained within said housing, disposed adjacent to each other, each compartment having separate wall structures, and a door for sEaling said first compartment so that said first compartment provides an atmosphere separate and independent of that of said second compartment; and

a continuous electrical heating element positioned between said spaced walls encompassing said compartments, said element having means for connection to an electrical power supply, and being electrically insulated from adjacent conductive walls, for producing the same uniform temperature within both of said compartments.

4. A temperature control device as in claim 3, wherein said first compartment includes a separate wall structure within said housing, and a removable door for forming a sealed enclosure of said first compartment.

5. A temperature control device as in claim 3, wherein said heating element comprises several turns of nichrome wire.

6. A temperature control device as in claim 3, including a thermostat switch for setting the level of temperature to be maintained within said housing, said thermostat switch being electrically coupled to said heating element.

7. A temperature control device as in claim 3, including means formed in said housing for accommodating a temperature measuring instrument, so that the sensing portion of said instrument is within the housing enclosure, and the calibrated indicator of the instrument is external to the housing available for visual observation.