Lubrication – Lubricators – Force feed
Reexamination Certificate
2000-01-21
2001-10-02
Bucci, David A. (Department: 3682)
Lubrication
Lubricators
Force feed
C184S006400, C184S039100, C184S040000, C184S057000, C417S137000
Reexamination Certificate
active
06296078
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an axle bearing lubricating device, which enables remote axle bearings in a factory to be automatically lubricated.
In a factory, automatic machines may be operated 24 hours a day. In order to keep automatic machines in high performance, the axle bearings of automatic machines must be regularly lubricated with lubricating grease. There is known an axle bearing lubricating device for this purpose. This structure of axle bearing lubricating device comprises a plurality of lubricating units. Each lubricating unit comprises a grease container, a motor, a transmission gear, and piston means. The piston means is driven by the motor through the transmission gear to propel lubricating grease out of the grease container into the grease-filling hole on the corresponding axle bearing. This structure of axle bearing lubricating device is still not satisfactory in function. Because the grease container contains only a limited amount of lubricating grease, it will be used up within a short time. When the grease container of one lubricating unit is used up, it must be replaced with a new one. Replacing the grease container of each lubricating unit is complicated. It is inconvenient and no economic to regularly replace the grease containers of the lubricating units. Further, the piston means tends to be stuck in the respective grease container, causing the respective motor to be burnt out.
SUMMARY OF THE INVENTION
The present invention provides an axle bearing lubricating device, which eliminates the aforesaid drawbacks. It is one object of the present invention to provide an axle bearing lubricating device, which is practical for lubricating multiple remote axle bearings. It is another object of the present invention to provide an axle bearing lubricating device, which enables the user to refill lubricating grease easily. It is still another object of the present invention to provide an axle bearing lubricating device, which is inexpensive to install. It is still another object of the present invention to provide an axle bearing lubricating device, which is easy to maintain. According to one aspect of the present invention, the axle bearing lubricating device comprises a grease storage tank for providing lubricating grease to at least one grease propeller, the grease storage tank having a grease outlet, at least one grease propeller for propelling grease from the grease storage tank to a respective axle bearing, the at least one grease propeller each having a piston reciprocated to expel lubricating grease to a respective axle bearing, a manifold connected between the grease outlet of the grease storage tank and air holes on each grease propeller, and a high pressure system controlled to output high pressure air to the at least one grease propeller to reciprocate the piston in each grease propeller for enabling lubricating grease to be applied to each axle bearing. According to another aspect of the present invention, each grease propeller comprises a cylinder, the cylinder comprising a front piston chamber, a longitudinal through hole axially extended from the center of the front piston chamber to a rear side thereof, a plurality of air holes disposed in communication between the piston chamber and the atmosphere, and a plurality of screw holes respectively disposed in communication between the longitudinal through hole and the atmosphere, a piston reciprocated in the front piston chamber, a piston rod fixedly and perpendicularly extended from the piston and moved with the piston in the longitudinal through hole in the cylinder, a first check valve installed in one end of the longitudinal through hole at the rear side of the cylinder remote from the piston chamber for enabling lubricating grease to be expelled out of the cylinder, a plurality of second check valves respectively installed in the screw holes for enabling lubricating grease to be delivered from the grease storage tank into the longitudinal through hole in the cylinder, a plurality of first connectors respectively installed in the air holes for enabling high pressure air to be delivered into the piston chamber to move the piston forwards, a cover covered on the front piston chamber, and a second connector installed in the cover for guiding air out of the piston chamber.
REFERENCES:
patent: 549479 (1895-11-01), Hall
patent: 715717 (1902-12-01), Whitaker
patent: 2164273 (1939-06-01), Hodson
patent: 3693757 (1972-09-01), Callahan et al.
patent: 4520902 (1985-06-01), Snow
patent: 4754848 (1988-07-01), Azzopardi et al.
patent: 5060761 (1991-10-01), Arndt et al.
patent: 5285871 (1994-02-01), Sievenpiper
patent: 5450924 (1995-09-01), Tseng
patent: 5497852 (1996-03-01), Little et al.
patent: 5667037 (1997-09-01), Orlitzky
patent: 6145626 (2000-11-01), Niemczura, Sr. et al.
Bucci David A.
Kim Cheng H.
Pro-Techtor Inter-national Services
LandOfFree
Axle bearing lubricating device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Axle bearing lubricating device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Axle bearing lubricating device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2613264