Damping unit for measuring and automatic control systems
US4402335A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1981 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Apr 14, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2278
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A damping system, more specially, for measuring and automatic control systems takes the form of mass of damping liquid placed between two parts which may be moved in relation to each other and which are to be damped. By the selection of the damping liquid, as for example a silicone oil, and of the form and size of the space between the two moving parts and, furthermore, of the properties of the two parts touched by the liquid, it is possible to make certain that the liquid is kept in place by surface tension effects, that is to say because of its own surface tension and the surface tension properties of the lining faces touched by it. The damping unit may take the form of two, more specially frusto-conical plates, able to be moved in relation to each other and of which one may undergo adjustment by using a threaded rod and a lock nut. Furthermore, as a further development of the invention, the damping liquid may be kept in an open-sided but otherwise pot-like space between an U-shaped female part and a male part, able to be moved vibratingly within it. As a still further development, the female part has a through-hole and the male part is placed within it. A larger or smaller amoun…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.