Handling: hand and hoist-line implements – Hand bars and hand barrows
Reexamination Certificate
1999-01-13
2001-02-27
Kramer, Dean J. (Department: 3652)
Handling: hand and hoist-line implements
Hand bars and hand barrows
C294S158000
Reexamination Certificate
active
06193290
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates in general to a carrying device, and in particular, to a device that facilitates the carrying of a rail car coupling knuckle.
The device which detachably connects one rail car to another is called a rail car coupling knuckle. Rail car coupling knuckles have a tendency to become damaged or broken while a train is in transit or in the process of changing cars and/or adding cars to the train. Thus, rail car coupling knuckles are replaced often by railroad personnel.
As all railroad personnel know, it is difficult and dangerous to carry a rail car coupling knuckle because rail car coupling knuckles are extremely heavy and difficult to grasp when carrying from the place of storage to the repair point. Thus, it is desirable to provide a rail car coupling knuckle carrying device to more safely carry the rail car coupling knuckle and decrease the number of injuries to railroad personnel.
SUMMARY OF THE INVENTION
This invention relates to a device for carrying a rail car coupling knuckle. The rail car coupling knuckle carrying device comprises an open end, a closed end, and a retaining pin for holding the open end and closed end together. The open end includes a plate and first and second tubes fixedly attached to the plate and are preferably substantially parallel to each other. One of the first and second tubes is capable of receiving the rail car coupling knuckle. The closed end includes a plate and a post and a third tube. The post and the third tube are fixedly attached to the plate and are preferably substantially parallel to each other. The post of the closed end is capable of being received in one of the first and second tubes of the open end, and the third tube of the closed end is capable of being received in the other one of the first and second tubes of the open end. The retaining pin, which can be generally L-shaped or generally U-shaped is inserted through openings in the open and closed ends to securely hold them together.
Various objects and advantages of this invention will become apparent to those skilled in the art from the following detailed description of the preferred embodiment, when read in light of the accompanying drawings.
REFERENCES:
patent: 1234781 (1917-07-01), Lozier
patent: 2515826 (1950-07-01), Hall
patent: 3955733 (1976-05-01), Russell
patent: 4045067 (1977-08-01), Wieder et al.
patent: 4759578 (1988-07-01), Gonzalez
patent: 5263755 (1993-11-01), Thompson
patent: 5704667 (1998-01-01), Lin
patent: 5899514 (1999-05-01), York et al.
Kramer Dean J.
MacMillan Sobanski & Todd LLC
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