Land vehicles – Wheeled – Articulated vehicle
Reexamination Certificate
2004-02-26
2008-07-22
Hewitt, James M (Department: 3679)
Land vehicles
Wheeled
Articulated vehicle
C280S420000, C285S062000, C285S065000, C285S070000, C285S071000, C285S306000, C285S920000, C303S068000, C212S180000
Reexamination Certificate
active
07401801
ABSTRACT:
A remotely releasable brake hose coupler for pressure fluid operated brake systems, such as on a motor truck and semi-trailer unit, and a retrieval mechanism for retrieving flexible hoses connected to the coupler. Pressure air from the truck tractor brake system is conducted through a valve to an actuator for effecting movement of a coupler member to release engagement with a corresponding coupler fitting mounted on a trailer. One or more air brake hoses connected to respective remotely releasable couplers are connected to tensioning mechanisms and to a movable boom mounted on the truck tractor for extending the hoses during a remote release operation and then retracting the hoses and couplers to a stored position when the remotely releasable couplers are disconnected from the trailer fittings.
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Halverson Merlin B.
King Harold E.
Lehman Gregory J.
Gardere Wynne & Sewell LLP
Hewitt James M
Kalmar Industires USA, LLC
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