Free floating dam for a fluid shear coupling apparatus
US4977990A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1989 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Sep 29, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D35/022
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid shear coupling comprises a driving member having a disc-shaped portion and a driven member defining a working chamber in which the driving member is received, the two members being mounted for relative rotation about a common axis, the driven member defining an annular groove facing the side of the driving member and further defining a circumferential cavity facing the outer perimeter of the driving member, and a one-piece, L-shaped dam having a radially extending portion received within the annular groove and an axially extending portion received within the circumferential cavity, each of the radially and axially extending portions including a first ramp surface facing in one direction and a second ramp surface facing in the other direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.