Sealed telescopic joint and method of assembly
US4730832A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1986 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | Aug 22, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A radially-resilient seal can frequently pop out its annular groove defined in a carrier when the carrier and an overlapping housing are telescopically assembled. Such misorientation of the seal prevents proper seating of the seal against the housing and ultimately permits leakage of pressurized fluid past the seal. The present invention provides a compact sealed joint and fool-proof method of assembly which maintains proper orientation of a radially-resilient seal during telescopic assembly of a carrier and a housing. The sealed joint includes an annular member having a diametrically tapered internal surface. The annular member positively ensures that the seal will properly seat against a housing inner surface which is not only physically inaccessible to the assembler but is also hidden from the assembler's view by an outer casing during the telescopic assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.