Rotary shafts – gudgeons – housings – and flexible couplings for ro – Housing – Flexible housing
Reexamination Certificate
1999-02-12
2001-03-20
Melius, Terry Lee (Department: 3629)
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Housing
Flexible housing
C277S636000, C403S023000, C464S175000
Reexamination Certificate
active
06203440
ABSTRACT:
FIELD OF THE INVENTION
The invention relates to an improved second boot for protecting parts adjacent to a fixed box from which there projects a rotating hub that is to be connected to a driveline incorporating a shaft with universal or other joints and with its own protection, with the possible presence of a friction clutch or of a torque limiting means or other member. Among the objects of the invention, which will be understood on reading the following text, are ease of access for operation on the parts inside, ease of dismantling and so forth.
SUMMARY AND OBJECTS OF THE INVENTION
The second boot according to the invention basically comprises: attached to the fixed box, a disc with a peripheral edge for engagement and fastening; and a sleeve that can be engaged inside the edge of said disc with fastening clips capable of being clipped to and unclipped from said edge. Said sleeve may include protective layers around the parts which it encloses.
In practice, said sleeve may comprise a tubular skirt having flexible portions and made from a relatively flexible synthetic material.
Advantageously provided in the disc are ventilation apertures, with deformations that function in conjunction with the passage defined between the sleeve and the protective boot surrounding the universal joint of the driveline; the deformations also tend to limit any deforming of said skirt.
On the inside of said tubular skirt there may a tubular layer with insulating properties, and a tubular sheet metal price for reinforcement from the inside of said tubular layer. The tubular layer and said tubular sheet metal piece may both be bent strips held in place by locking rings housed in channels formed in the sheet metal piece.
The second boot to which the invention relates may advantageously comprise a connecting chain between said disc and said sleeve and a chain, with a clip, between said disc and the protective sheath of the jointed drive shaft.
A cleaner understanding of the invention will be gained from the description and accompanying drawing, which latter shows a practical, non-restrictive example of the invention.
REFERENCES:
patent: 2025635 (1935-12-01), Bishoff
patent: 3797329 (1974-03-01), Quirk
patent: 3866440 (1975-02-01), Stananought
patent: 4308931 (1982-01-01), Khanna
patent: 4324533 (1982-04-01), Schroeder et al.
patent: 5364310 (1994-11-01), Taylor
patent: 5895323 (1999-04-01), Benzi
McGlew and Tuttle , P.C.
Melius Terry Lee
Thompson Kenneth
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