Rotary seal construction and processor
US4289319A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1978 |
| Grant date | Sep 15, 1981 |
| Priority date | — |
| Expiry date | Aug 22, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2035/351
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A seal construction and rotary processor including the seal construction in which the seal includes nested truncated conical members of thin stiffly-resilient material interposed between relatively rotatable coaxial surfaces with inner edge portions of the members adjacent and in flow resistant relation to one, and outer edge portions adjacent and in flow resistant relation to the other of the surfaces, marginal portions at either the inner or the outer edge portions of the loops being held to enable pressure against the loops to force the outer or inner edges respectively into improved sealing relation to the surface to which they are adjacent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.