Coupler knuckle pin
AssigneeAmsted Rail Company, Inc.
InventorWeiping Wang
Life of this patent
Estimating the term…
Abstract
An improved polymeric knuckle pin with at least one indented area that elastomer rings rest in. The indented area is strategically placed in an area on the shaft of the pin where the coupler-knuckle connection exerts impact, force, and stress on the pin. The elastomer rings in the indented area provide cushion to the pin from the impact, force, and stress, allow the pin to avoid hard contact with the coupler and knuckle, distribute the loads exerted by the coupler and knuckle more evenly, realign the coupler and knuckle positions, and protect the pin itself from surface cuts and scratches. The elastomer rings on the shaft of the pin improve the life of both the coupler-knuckle assembly and the pin.
Claims18
An improved polymeric knuckle pin on a railway car coupler comprising:
- a shaft having at least one indented area extending radially inward;
- a head on one end of said shaft;
- means for locking the pin into a coupler at the end of said shaft opposite said head;
- and
- at least one elastomer ring in said at east one indented area on said shaft.
A polymeric knuckle pin on a railway car coupler comprising:
- a shaft having at least one surface relieved portion where stress exertion and impact from a coupler-knuckle connection is exerted on said pin;
- a head on one end of said shaft;
- means for locking said pin into a coupler at the end of said shaft opposite said head;
- and
- at least one impact and force absorbing ring in said at least one surface relieved portion on said shaft.
A polymeric knuckle pin on a railway car coupler comprising:
- a shaft having at least one indented area;
- wherein said at least one indented area is diametrically smaller than the rest of said shaft;
- a head on one end of said shaft;
- means for locking said pin into a coupler at the end of said shaft opposite said head;
- and
- at least one elastomer ring in said at least one indented area on said shaft.
Dependencies are inferred from the claim text.