Abstract: One or more of the following quenching methods and apparatus: a quenching press for quenching a steel ring, a method of quenching a steel ring, a corresponding set of quenching dies for quenching steel rings, a die handling tool and related method to lift the corresponding set of quenching dies, and a die handling apparatus to load and unload dies to a quenching press.
Type:
Grant
Filed:
November 15, 2007
Date of Patent:
October 11, 2011
Assignee:
Sterling Engineering and Manufacturing Company, Inc.
Abstract: One or more of the following quenching methods and apparatus: a quenching press for quenching a steel ring, a method of quenching a steel ring, a corresponding set of quenching dies for quenching steel rings, a die handling tool and related method to lift the corresponding set of quenching dies, and a die handling apparatus to load and unload dies to a quenching press.
Type:
Application
Filed:
November 15, 2007
Publication date:
May 21, 2009
Applicant:
Sterling Engineering And Manufacturing Company, Inc.
Abstract: The post driver apparatus of the instant invention is designed to be mounted on a truck chassis that can be readily moved from site to site and comprises a fluid-pressure impact hammer mounted in a shock absorbing cage assembly that permits rapid driving of posts into the ground without transmission of substantial shock forces to the frame and chassis on which the post driver is mounted. The apparatus is also equipped with means to vary the location and orientation of the impact hammer with respect to the truck chassis thereby minimizing the precision with which the truck chassis must be located.
Type:
Grant
Filed:
November 13, 1974
Date of Patent:
June 8, 1976
Assignee:
Sterling Engineering and Manufacturing Company