Abstract: A self adjusting chain mechanism for use with an undercutter attached to an excavator having hydraulic means for adjusting the undercutter; the self adjusting mechanism has a chain and sprocket assembly in a sprocket holding frame, a ram and piston, all operating in conjunction with the hydraulics of the excavator with a control system to move an adjuster shaft connected to the chain sprocket assembly, so as to cause the chain to tighten in response to the changes in hydraulic pressure.
Abstract: An undercutter attachable to utility machines has a bar with chain having teeth for cutting into rock beds, whereby the chain rotates about the bar. The bar has removable top and bottom portions, which when in place and secured, provide a channel for the chain, and when the top and bottom portions are removed, allow for replacement of worn parts without loosening or removing the chain.
Type:
Grant
Filed:
October 8, 2009
Date of Patent:
December 9, 2014
Assignee:
Dymax, Inc
Inventors:
Dennis Clasen, Scott Balderson, Harold Fechter
Abstract: A self adjusting chain mechanism for use with an undercutter attached to an excavator having hydraulic means for adjusting the undercutter; the self adjusting mechanism has a chain and sprocket assembly in a sprocket holding frame, a ram and piston, all operating in conjunction with the hydraulics of the excavator with a control system to move an adjuster shaft connected to the chain sprocket assembly, so as to cause the chain to tighten in response to the changes in hydraulic pressure.
Abstract: An undercutter having removable top and bottom portions, which when in place and secured, provide the channel means for the chain, and when removed, allow for replacement of worn parts without loosening or removing the chain.
Type:
Application
Filed:
October 8, 2009
Publication date:
April 14, 2011
Applicant:
New Dymax, Inc.
Inventors:
Dennis Clasen, Scott Balderson, Harold Fechter