Rotary shafts – gudgeons – housings – and flexible couplings for ro – Having lubricating means – For coupling having torque transmitted via intermeshing teeth
Reexamination Certificate
2006-05-30
2006-05-30
Bagnell, David (Department: 3679)
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Having lubricating means
For coupling having torque transmitted via intermeshing teeth
C464S007000, C184S095000
Reexamination Certificate
active
07052398
ABSTRACT:
A slip joint includes a structure that prevents a negative pressure situation from occurring within a sealed lubricant chamber during operation thereof. The slip joint includes a male splined member having a plurality of external splines formed thereon that cooperate with a plurality of internal splines formed on a female splined member. The cooperating splines are disposed within a lubricant chamber defined at one end by a seal assembly and at the other end by a pressure regulator assembly. The pressure regulator assembly includes a housing having an open end that faces toward the lubricant chamber. A pressure plate is disposed within the housing of the pressure regulator assembly and is supported for sliding movement relative thereto. A spring urges the pressure plate toward the open end of the housing and the lubricant chamber. As a result, the pressure plate maintains a positive pressure situation within the lubricant chamber, thereby deterring contaminants from passing through the seal assembly into the region of the cooperating splines.
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Permalube Permanently Lubricated Drivelines (RPL Series) from Meritor dated 11/97.
Bagnell David
MacMillan Sobanski & Todd LLC
Thompson Kenneth
Torque-Traction Technologies Inc.
LandOfFree
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