Tube-to-hose coupling (crimp-sert) and method of making same
US5417461A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1993 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Aug 25, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49909
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hose coupling comprising a metal tube and a cylindrical insert concentrically arranged and held fast within the tube. The tube includes a radially outwardly flared sleeve integral with the tube and providing a tube end and a stop shoulder at the juncture at which said sleeve is flared outwardly. The insert includes (i) a barrel portion extending substantially the full length of the insert and (ii) a radially outwardly flared integral collar at one end of the barrel portion. The collar has an end face abutting the tube stop shoulder, an opposed hose end face, and a tapered circumferential land engaging the sleeve and extending axially at an outwardly diverging uniform taper from the tube end face to the hose end face. The sleeve is preformed to include a circumferential seat portion for seating the collar with the seat portion diverging outwardly at a uniform taper equal to that of the collar and beginning at the tube stop shoulder and continuing to a point at least equal to the length of said collar. A flexible hose is held within the sleeve and supported on the insert barrel portion and abutting the hose end face of the collar. In one crimping operation both the insert and hose …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.