Mechanical seal
US4294453A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1980 |
| Grant date | Oct 13, 1981 |
| Priority date | — |
| Expiry date | Apr 1, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/93
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A mechanical seal suitable for providing a seal to a shaft sealing section of a rotary machine, particularly of the type operating under high speed and high pressure conditions, including a stationary retainer for holding a stationary sealing element, resilient means and recoil preventing means, a seal housing secured to the stationary retainer in a manner to surround the stationary sealing element, and an inwardly projecting portion formed in the seal housing to prevent axial movement of the stationary sealing element which might otherwise be caused by the biasing force of the resilient means when the mechanical seal is assembled or disassembled. The parts of the mechanical seal can be attached to the casing or detached therefrom as a unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.