Clean room system
US4676144A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 1985 |
| Grant date | Jun 30, 1987 |
| Priority date | — |
| Expiry date | Dec 30, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F3/167
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A clean room system includes a processing room containing production equipment, a technical room adjacent the processing room and containing machinery for actuating the production equipment, and a wall separating the production equipment from the actuating machinery. The wall also serves to isolate the atmosphere of the processing room from the atmosphere of the technical room and to prevent contaminants emitted by the machinery from entering the processing room and, ultimately, contaminating the goods being manufactured or processed. The clean room system also is provided with a ventilation system for recirculating and filtering the atmosphere of the processing room. The ventilation system maintains the atmosphere of the processing room at a higher pressure than that of the atmosphere of the technical room to prevent air from passing from the technical room into the processing room. The system permits personnel to have access to the machinery actuating the production equipment without having to enter the processing room itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.