Measuring gas pump with heated and insulated pump head
US6863508B2 · kind B2 · utility
3Cited by
10References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2001 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Feb 23, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B45/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump for gases to be measured having a pump housing in which a pump chamber is located. The pump chamber is sealed off by a working membrane that is connected to a crank drive by a connecting rod or similar lifting mechanism. A heating device is provided in an upper area of the pump housing, particularly in the pump head. Heat insulation covering at least the pump head is provided. The heat insulation is in the form of an insulating housing having an inner wall spaced apart from the pump head in order to form a gas insulation layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.