Lubrication – Lubricators – Belt – cable – chain or conveyor
Reexamination Certificate
2002-06-25
2004-07-20
Bucci, David A. (Department: 3682)
Lubrication
Lubricators
Belt, cable, chain or conveyor
C074S500500, C074S502400
Reexamination Certificate
active
06763914
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a self-lubrication cable assembly wherein a lubrication sleeve is received in the sheath and the cable movably extends through the lubrication sleeve so that the cable is lubricated during operation.
BACKGROUND OF THE INVENTION
A conventional brake cable assembly is shown in FIG.
10
and generally includes a metal cable
10
which is protected by a plastic sheath
20
and the cable
10
is movably in the sheath
20
. An end piece
100
is connected to the cable
10
and a metal fastener
60
is secured on the plastic sheath
20
. The end piece
100
is connected to the brake lever so that when pulling the brake lever, the brake cable
10
is pulled to activate the brake mechanism. The cable
10
is supposed to be moved in the sheath
20
at less friction so as to quickly response the braking action. However, the brake cable
10
lacks of lubrication and it contacts the sheath
20
so that it is pulled at a large friction which could shorten the term of lift of the brake cable
10
. The cable
10
gets rust if humidity is remained in the sheath.
The present invention intends to provide a self-lubrication cable assembly wherein a lubrication sleeve is received in the sheath so as to lubricate the cable all the time.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a brake cable assembly which comprises a cable movably received in a sheath and an outer tube is mounted to the sheath which has an aperture defined through a wall thereof. A shoulder extends inward from an inner periphery of the outer tube and a lubrication sleeve is received in the outer tube. An end of the lubrication sleeve contacts an end surface of the shoulder and the other end of the lubrication sleeve contacts an end of the sheath. The aperture communicates with the lubrication sleeve.
The primary object of the present invention is to provide a cable assembly that has a lubrication sleeve which provides lubrication to the cable extending through the sleeve.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
REFERENCES:
patent: 1589108 (1926-06-01), Caretta
patent: 4066147 (1978-01-01), Toyomoto
patent: 4749059 (1988-06-01), Jonnes et al.
patent: 5326292 (1994-07-01), Brushaber
patent: 5662189 (1997-09-01), Anderson et al.
patent: 5988011 (1999-11-01), Crepin
Bucci David A.
McAnulty Timothy
Rosenberg , Klein & Lee
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