Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.1321/CHE/2012 A
(19) INDIA
(22) Date of filing of Application :02/04/2012 (43) Publication Date : 21/06/2013
(54) Title of the invention : TORQUE LIMITING ENGINE ROTATION TOOL
(51) International classification
:B25B
23/00
(31) Priority Document No :13/080,147
(32) Priority Date :05/04/2011
(33) Name of priority country :U.S.A.
(86) International Application No
:NA
Filing Date
:NA
(87) International Publication No : NA
(61) Patent of Addition to Application Number :NA
Filing Date
:NA
(62) Divisional to Application Number
:NA
Filing Date
:NA
(71)Name of Applicant :
1)INTERANATIONAL TRUCK INTELLECTUAL
PROPERTY COMPANY, LLC
Address of Applicant :4201 WINFIELD ROAD, LEGAL
DEPT., WARRENVILLE, IL 60555 U.S.A.
(72)Name of Inventor :
1)EHLERS, MARK
2)REITH, KARL
(57) Abstract :
A torque limiting engine rotation tool for rotating a crankshaft of an engine, where the engine rotation tool is configured to be
operated with a socket wrench or non-impacting tool and is configured to engage an accessory drive pulley bolt or any other bolt
that causes the crankshaft to rotate, includes a socket body. The socket body has a driving portion coupled to a bolt-torquing
portion with a shear pin. A receiving recess is defined by the driving portion and is configured to receive the socket wrench or
non-impacting tool. A female socket recess is defined by the bolt-torquing portion and is configured to engage the bolt. The
amount of torque applied by the socket wrench or non-impacting tool to the bolt is limited by the shear strength of the shear pin.
No. of Pages : 20 No. of Claims : 24
The Patent Office Journal 21/06/2013 13794