Media dispenser with initial pressure-relief state
US5375745A · kind A · utility
24Cited by
6References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 4, 1992 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Sep 4, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1026
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A discharge apparatus (1a) has at least one slide (7a) with a bearing and/or contact surfaces (17a, 21a or 31a, 35a) engaging in pretensioned manner in at least one working position, in which for at least one of the surfaces is provided a device (20, 20'), with which it is possible to vary the compressive stress acting on the surface as a function of the control path of the slide. For example, piston lips (18a, 22a) can be relived in the rest position for reducing temperature-dependent deformation tendencies, or a valve closing stress can be increased or decreased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.