Mounting assembly for hydraulic coupling
US6622646B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2002 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Aug 14, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C19/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A case drain coupler mounting plate is mounted to the frame of the seeding machine. The case drain hydraulic coupler is secured to the case drain coupler mounting plate when it is not coupled to a tractor. The mounting plate is provided with a keyhole-shaped mounting aperture having an enlarged upper opening and a narrow channel projecting downwardly from the enlarged opening. The case drain hydraulic coupler is provided with a circumferential groove that engages the narrow channel in the keyhole shaped slot. A backing plate is mounted to the mounting plate at a fixed distance from the mounting plate. The backing plate engages the case drain hydraulic coupler and overcomes the biasing force to open the check valve. With the check valve open the case drain line provides a drain path for hydraulic fluid from the case drain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.