Automotive quick connect tube coupling
US4191408A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 27, 1977 |
| Grant date | Mar 4, 1980 |
| Priority date | — |
| Expiry date | May 27, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L37/084
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A quick connect tube coupling sealingly couples a tube to a body solely by pushing the tube axially into the body. The tube is provided with a reduced diameter end portion and a conical ramp portion and an annular groove. The body has a passage extending therethrough which includes a nominal diameter portion, a counterbore portion, and a threaded end portion. A coupling subassembly is screwed into the threaded end of the passage in the body before the tube is assembled. The coupling subassembly includes a nut having a tube receiving passage and a retainer which holds a snap ring and an elastomeric seal in place prior to and after assembly of the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.