Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.2602/MUM/2010 A
(19) INDIA
(22) Date of filing of Application :17/09/2010 (43) Publication Date : 21/06/2013
(54) Title of the invention : ASSEMBLIES IN AN UNDERCARRIAGE SYSTEM
(51) International classification
(31) Priority Document No :NA
(32) Priority Date :NA
(33) Name of priority country :NA
(86) International Application No :NA
Filing Date
:NA
(87) International Publication No : NA
(61) Patent of Addition to Application
:NA
Number
:NA
Filing Date
(62) Divisional to Application Number
Filing Date
:b62d55/08;
b62d55/10;b62d55/14
:NA
:NA
(71)Name of Applicant :
1)Tractor Engineers Limited (L&T)
Address of Applicant :A-8 Talegaon Industrial Area
MIDC Village Nav Lakh Umbre Talika Maval District Pune
Talegaon Dabhade -410507 Maharashtra India
(72)Name of Inventor :
1)Pranjal P. Nene
(57) Abstract :
A carrier roller, roller, and idler for use in an undercarriage system of a tracked machine are provided. The carrier roller, roller,
and idler are provided with seals, thereby protecting the parts that are sensitive to contamination, from mud, soil and other
contaminants. Further, a first bush and a second bush are provided in each of the carrier roller, roller, and idler, configured to
guide the shaft, wherein the first bush and the second bush are self lubricating in nature, thereby eliminating requirement of
lubricating oil.
No. of Pages : 30 No. of Claims : 10
The Patent Office Journal 21/06/2013 13572