Refrigeration – Muffler or sound dampener
Reexamination Certificate
2006-01-03
2006-01-03
Ali, Mohammad M. (Department: 3744)
Refrigeration
Muffler or sound dampener
C454S906000, C181S224000
Reexamination Certificate
active
06981386
ABSTRACT:
Silencing equipment is provided for an air-cooling assembly in a large off-road vehicle having wheels, traction motors for the wheels that operate in a motoring mode to propel the vehicle and a power generating dynamic braking mode, resistor grids for dissipating the dynamic braking power, and a blower for moving cooling air past the grids to cool them. The silencing equipment may include a resistor grid housing24and at least one upper inlet22for passing cooling air to the interior of the housing. The inlet includes noise-absorbing material. A conduit28is provided for directing cooling air from the upper inlet through a transition chamber to reach the blower and at least one resistor grid in the housing. The conduit is lined with noise-absorbing material. A removable cover30is provided for the conduit for accessing the air blower in the housing through the transition chamber, whereby servicing of the blower may be performed without removal of the entire upper inlet.
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Hamilton Alan R.
Jacobs Alexander Antonius Maria
Randolph Ord Allen
Young Henry
Ali Mohammad M.
Andes William Scott
Beusse, Brownlee, Wolter, Mora & Maire, P A
General Electric Company
Mora Enrique J.
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