Motors: expansible chamber type – With motive fluid valve – Inlet check valve with means for disconnectable supply line
Patent
1991-04-10
1992-11-03
Look, Edward K.
Motors: expansible chamber type
With motive fluid valve
Inlet check valve with means for disconnectable supply line
91449, 91469, 137901, F15B 1108, F15B 1304
Patent
active
051598728
ABSTRACT:
A valve block in a mine hydraulic system contains a non-return valve which is opened when a hydraulic control signal occurs to connect a pressure fluid feed or return line to a working chamber of an appliance such as a prop. A auxiliary valve is mounted in the block and is operated manually to relieve the working chamber even if the non-return valve remains closed.
REFERENCES:
patent: 3948147 (1976-04-01), Sauer et al.
patent: 4088151 (1978-05-01), Schurger
patent: 4214607 (1980-07-01), Bouteille
patent: 4461449 (1984-07-01), Turner
patent: 4549565 (1985-10-01), Short
patent: 4694862 (1987-09-01), Rott
patent: 4941504 (1990-07-01), Beauvir
Dettmers Michael
Peters Bernd
Gewerkschaft Eisenhutte Westfalia GmbH
Look Edward K.
Nguyen Hoang
LandOfFree
Valve units for use in hydraulic control systems of mining equip does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Valve units for use in hydraulic control systems of mining equip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve units for use in hydraulic control systems of mining equip will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2044109