Pneumatic thermostat aspirator
US3998384A · kind A · utility
5Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1973 |
| Grant date | Dec 21, 1976 |
| Priority date | — |
| Expiry date | Apr 23, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2224
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An aspirator for a pneumatic thermostat including a slit restriction which provides a relatively thin and wide jet of air. The large surface area of the flat jet entrains a substantial volume of ambient air and results in a large ambient air flow past the thermostat. The slit restriction is formed either of a shallow channel in a portion of the aspirator housing or of a cutaway portion in a relatively thin sheet of material interposed between two housing halves of the aspirator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.