Rotary shafts – gudgeons – housings – and flexible couplings for ro – Shafting – With disparate device for coupling shaft to additional shaft...
Reexamination Certificate
1998-11-10
2001-07-17
Browne, Lynne H. (Department: 3629)
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Shafting
With disparate device for coupling shaft to additional shaft...
C460S030000, C460S130000, C403S371000, C403S370000
Reexamination Certificate
active
06261185
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention includes a means for coupling a drive shaft to a rotatable member and the method of doing the same.
In most instances, drive shafts which are used to drive other elements such as a rotatable members are either fastened to the rotatable members with bolts, screws, and locking keys as such or fixedly attached to the rotatable members by being welded directly to the rotatable members, thus making it very difficult for the user to replace or repair either the rotatable members or the drive shafts, and most often the users only option is to replace both the drive shafts and the rotatable member. With the present invention, the user can not only quickly and easily repair or replace the broken element being either the drive shaft or the rotatable member but can do so without having to replace both the rotatable member and the drive shaft. In addition, with the present invention, the user can couple the drive shaft to the rotatable member more easily and conveniently than using any of the conventional methods.
SUMMARY OF THE INVENTION
The present invention is a means for coupling a drive shaft to a rotatable member and the method of doing the same which includes a shaft, a rotatable member having a circumference larger than that of the shaft and having at least one end through which at least a portion of the shaft is securely disposed and a coupling member which is compressedly mounted about the shaft and which is also expandedly mounted within the rotatable member to securely and rigidly couple the shaft to the rotatable member. The method of coupling the drive shaft to the rotatable member includes providing a drive shaft such as a stub shaft having a pre-determined circumference and also providing a rotatable member having an end with a bore therein and further providing a coupler, and also includes positioning the coupler in the bore at the end of the rotatable member and extending an end portion of the drive shaft in the coupler and substantially securing the coupler about the drive shaft and within the bore of the rotatable member such that the rotatable member rotates with the drive shaft.
One objective of the present invention is to provide a means for coupling a drive shaft to a rotatable member which substantially reduces the cost and time for repair since the user can easily remove the drive shaft from the coupler and the coupler from the rotatable member without either having to undo fasteners or using a cutting device to remove the drive shaft.
Another objective of the present invention is to provide a means for coupling a drive shaft to a rotatable member which allows the user to only have to repair or replace the immediate damaged component without having to replace or repair all the components.
Further objectives and advantages of the present invention will become apparent as the description proceeds and when taken in conjunction with the accompanying drawings wherein:
REFERENCES:
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patent: 4798248 (1989-01-01), Schwitters
patent: 4824281 (1989-04-01), Katsube
patent: 5172539 (1992-12-01), Jennings et al.
patent: 5372546 (1994-12-01), Brakke
patent: 5387155 (1995-02-01), Dietz
patent: 5474403 (1995-12-01), Hetrich
Ehrichs Warren A.
Iverson Thor
Menze Adam R.
Peterson Gary G.
Amity Technology, Inc.
Browne Lynne H.
Dunwoody Aaron
Neustel Michael S.
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