Motor vehicles – Surface effect vehicles – Dynamic seal or fluid curtain
Patent
1979-12-26
1982-03-02
Peters, Jr., Joseph F.
Motor vehicles
Surface effect vehicles
Dynamic seal or fluid curtain
60405, B62D 5006
Patent
active
043174990
ABSTRACT:
An emergency steering system includes a backup pump which is driven by an electric motor, a control circuit for the motor includes a flow sensing switch and a pressure-sensing switch connected in series and operative to automatically energize the motor when a main pump is outputting no flow and the pressure at the pump outlet is below a predetermined minimum value for adequate steering operation.
REFERENCES:
patent: 3558239 (1971-01-01), Schiber
patent: 3820620 (1974-06-01), Miller
patent: 3995711 (1976-12-01), Kittle
patent: 4076096 (1978-02-01), Hushower
Deere & Company
Hill Mitchell J.
Peters Jr. Joseph F.
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