Wheel substitutes for land vehicles – Tracks or treads – Separate transverse connector pin between treads
Reexamination Certificate
2005-09-27
2005-09-27
Stormer, Russell D. (Department: 3617)
Wheel substitutes for land vehicles
Tracks or treads
Separate transverse connector pin between treads
C305S194000, C029S898130, C384S276000, C384S282000
Reexamination Certificate
active
06948784
ABSTRACT:
A track pin bushing for cooperating with a track pin in an endless track has a tubular body with a metallurgically bonded wear-resistant coating and a method for forming such a coated track pin bushing is taught herein. The tubular body, formed of an iron-based alloy, has an outer surface that is carburized and quenched, i.e., case-hardened, in at least a section thereof. At least a portion of the case hardened section has been removed to a depth sufficient to expose a non-carburized layer of the iron-based alloy. A hard metal alloy slurry is disposed on the non-carburized layer and forms a metallurgical bond between the non-carburized layer and the coated unfused slurry by fusing the hard metal alloy. The thickness of the unfused slurry is adjusted to be from 1.67 to 2.0 times a final thickness of the wear-resistant coating. The wear-resistant coating comprises a fused, metal alloy comprising at least 60% iron, cobalt, nickel, or alloys thereof. The portion of the outer surface with the wear-resistant coating corresponds to a contact surface adapted to engage with a drive sprocket in the endless track of the track-type vehicle.
REFERENCES:
patent: 2334350 (1943-11-01), Neuhaus
patent: 3310870 (1967-03-01), Parikh et al.
patent: RE27851 (1973-12-01), Alessi et al.
patent: 4042282 (1977-08-01), Haslett et al.
patent: 4175163 (1979-11-01), Ikeno et al.
patent: 4182394 (1980-01-01), Cason, Jr.
patent: 4218494 (1980-08-01), Belmondo et al.
patent: 4625810 (1986-12-01), Edmisson
patent: 4629353 (1986-12-01), Burke
patent: 4682987 (1987-07-01), Brady et al.
patent: 4776566 (1988-10-01), Girdley
patent: 4930675 (1990-06-01), Bedford et al.
patent: 4954058 (1990-09-01), Revankar
patent: 5027878 (1991-07-01), Revankar et al.
patent: 5126104 (1992-06-01), Anand et al.
patent: 5249868 (1993-10-01), Watts
patent: 5267600 (1993-12-01), Revankar
patent: 5288353 (1994-02-01), Revankar
patent: 5299620 (1994-04-01), Revankar et al.
patent: 5383513 (1995-01-01), Revankar
patent: 5443916 (1995-08-01), Revankar
patent: 5456323 (1995-10-01), Hill
patent: 5702667 (1997-12-01), Pond
patent: 5879743 (1999-03-01), Revankar
patent: 6045200 (2000-04-01), Anderton et al.
patent: 6074022 (2000-06-01), Anderton et al.
patent: 6089683 (2000-07-01), Anderton et al.
patent: 6145941 (2000-11-01), Anderton et al.
patent: 6402862 (2002-06-01), Anderton et al.
patent: 6485116 (2002-11-01), Oertley
patent: 6565161 (2003-05-01), Anderton
patent: 6666013 (2003-12-01), Nakagawa et al.
patent: 0 302 988 (1989-02-01), None
patent: 0 459 637 (1991-12-01), None
patent: 1 572 963 (1980-08-01), None
patent: 60-89503 (1985-05-01), None
patent: 60-89504 (1985-05-01), None
Patent Abstracts of Japan, vol. 2000, No. 15, Apr. 6, 2001, JP 2000 343129 A.
Niemann Todd B.
Revankar Gopal S.
Wodrich Timothy D.
Bellinger Jason R.
Burns Doane Swecker & Mathis L.L.P.
Deere & Company
Stormer Russell D.
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