Pneumatic manifold quick coupling
US4843983A · kind A · utility
21Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1988 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Feb 2, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/208
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A quick pneumatic coupling particularly well adapted for use in a folding agricultural planter comprises a rigid plastic funnel mounted to the end of a first conduit and a flexible and resilient rubber flange member mounted to a second conduit. The inner surface of the funnel forms a sealing surface which is contacted by the flange when it is inserted into the funnel. The coupling can be automatically coupled and decoupled by pivotally inserting and withdrawing the flanged member into and out of the receiving funnel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.